1773 lines
75 KiB
Ruby
1773 lines
75 KiB
Ruby
#
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# Copyright (C) 2011 Instructure, Inc.
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#
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# This file is part of Canvas.
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#
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# Canvas is free software: you can redistribute it and/or modify it under
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# the terms of the GNU Affero General Public License as published by the Free
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# Software Foundation, version 3 of the License.
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#
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# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Affero General Public License along
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# with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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class Course < ActiveRecord::Base
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adheres_to_policy
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include Context
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include Workflow
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attr_accessible :name, :section, :account, :group_weighting_scheme, :start_at, :conclude_at, :grading_standard_id, :is_public, :publish_grades_immediately, :allow_student_wiki_edits, :allow_student_assignment_edits, :hashtag, :show_public_context_messages, :syllabus_body, :hidden_tabs, :allow_student_forum_attachments, :default_wiki_editing_roles, :allow_student_organized_groups, :course_code, :default_view, :show_all_discussion_entries, :open_enrollment, :allow_wiki_comments, :turnitin_comments, :self_enrollment, :license, :indexed, :enrollment_term, :abstract_course, :root_account, :storage_quota
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serialize :tab_configuration
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belongs_to :root_account, :class_name => 'Account'
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belongs_to :abstract_course
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belongs_to :enrollment_term
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has_many :course_sections
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has_many :active_course_sections, :class_name => 'CourseSection', :conditions => {:workflow_state => 'active'}
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has_many :enrollments, :include => [:user, :course], :conditions => ['enrollments.workflow_state != ?', 'deleted'], :dependent => :destroy
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has_many :current_enrollments, :class_name => 'Enrollment', :conditions => ['enrollments.workflow_state != ? AND enrollments.workflow_state != ? AND enrollments.workflow_state != ?', 'rejected', 'completed', 'deleted'], :include => :user
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has_many :prior_enrollments, :class_name => 'Enrollment', :include => [:user, :course], :conditions => "enrollments.workflow_state = 'completed'"
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has_many :students, :through => :student_enrollments, :source => :user, :order => :sortable_name
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has_many :all_students, :through => :all_student_enrollments, :source => :user, :order => :sortable_name
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has_many :participating_students, :through => :enrollments, :source => :user, :conditions => "enrollments.type = 'StudentEnrollment' and enrollments.workflow_state = 'active'"
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has_many :student_enrollments, :class_name => 'StudentEnrollment', :conditions => ['enrollments.workflow_state != ? AND enrollments.workflow_state != ? AND enrollments.workflow_state != ?', 'deleted', 'completed', 'rejected'], :include => :user #, :conditions => "type = 'StudentEnrollment'"
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has_many :all_student_enrollments, :class_name => 'StudentEnrollment', :conditions => ['enrollments.workflow_state != ?', 'deleted'], :include => :user
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has_many :detailed_enrollments, :class_name => 'Enrollment', :conditions => ['enrollments.workflow_state != ?', 'deleted'], :include => {:user => {:pseudonym => :communication_channel}}
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has_many :teachers, :through => :teacher_enrollments, :source => :user
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has_many :teacher_enrollments, :class_name => 'TeacherEnrollment', :conditions => ['enrollments.workflow_state != ?', 'deleted'], :include => :user
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has_many :tas, :through => :ta_enrollments, :source => :user
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has_many :ta_enrollments, :class_name => 'TaEnrollment', :conditions => ['enrollments.workflow_state != ?', 'deleted'], :include => :user
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has_many :observers, :through => :observer_enrollments, :source => :user
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has_many :observer_enrollments, :class_name => 'ObserverEnrollment', :conditions => ['enrollments.workflow_state != ?', 'deleted'], :include => :user
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has_many :admins, :through => :enrollments, :source => :user, :conditions => "enrollments.type = 'TaEnrollment' or enrollments.type = 'TeacherEnrollment'"
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has_many :participating_admins, :through => :enrollments, :source => :user, :conditions => "(enrollments.type = 'TaEnrollment' or enrollments.type = 'TeacherEnrollment') and enrollments.workflow_state = 'active'"
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has_many :learning_outcomes, :through => :learning_outcome_tags, :source => :learning_outcome_content
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has_many :learning_outcome_tags, :as => :context, :class_name => 'ContentTag', :conditions => ['content_tags.tag_type = ? AND content_tags.workflow_state != ?', 'learning_outcome_association', 'deleted']
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has_many :created_learning_outcomes, :class_name => 'LearningOutcome', :as => :context
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has_many :learning_outcome_groups, :as => :context
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has_many :course_account_associations
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has_many :associated_accounts, :source => :account, :through => :course_account_associations, :order => 'course_account_associations.depth'
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has_many :users, :through => :enrollments, :source => :user
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has_many :groups, :as => :context
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has_many :active_groups, :as => :context, :class_name => 'Group', :conditions => ['groups.workflow_state != ?', 'deleted']
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has_many :assignment_groups, :as => :context, :dependent => :destroy, :order => 'assignment_groups.position, assignment_groups.name'
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has_many :assignments, :as => :context, :dependent => :destroy
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has_many :calendar_events, :as => :context, :conditions => ['calendar_events.workflow_state != ?', 'cancelled'], :dependent => :destroy
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has_many :submissions, :through => :assignments, :order => 'submissions.updated_at DESC', :include => :quiz_submission, :dependent => :destroy
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has_many :discussion_topics, :as => :context, :conditions => ['discussion_topics.workflow_state != ?', 'deleted'], :include => :user, :dependent => :destroy, :order => 'discussion_topics.position DESC, discussion_topics.created_at DESC'
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has_many :active_discussion_topics, :as => :context, :class_name => 'DiscussionTopic', :conditions => ['discussion_topics.workflow_state != ?', 'deleted'], :include => :user
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has_many :all_discussion_topics, :as => :context, :class_name => "DiscussionTopic", :include => :user, :dependent => :destroy
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has_many :discussion_entries, :through => :discussion_topics, :include => [:discussion_topic, :user], :dependent => :destroy
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has_many :announcements, :as => :context, :class_name => 'Announcement', :dependent => :destroy
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has_many :active_announcements, :as => :context, :class_name => 'Announcement', :conditions => ['discussion_topics.workflow_state != ?', 'deleted'], :order => 'created_at DESC'
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has_many :attachments, :as => :context, :dependent => :destroy
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has_many :active_attachments, :as => :context, :class_name => 'Attachment', :conditions => ['attachments.file_state != ?', 'deleted'], :order => 'attachments.display_name'
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has_many :active_assignments, :as => :context, :class_name => 'Assignment', :conditions => ['assignments.workflow_state != ?', 'deleted']
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has_many :folders, :as => :context, :dependent => :destroy, :order => 'folders.name'
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has_many :active_folders, :class_name => 'Folder', :as => :context, :conditions => ['folders.workflow_state != ?', 'deleted'], :order => 'folders.name'
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has_many :active_folders_detailed, :class_name => 'Folder', :as => :context, :include => [:active_sub_folders, :active_file_attachments], :conditions => ['folders.workflow_state != ?', 'deleted'], :order => 'folders.name'
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has_many :messages, :as => :context, :dependent => :destroy
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belongs_to :wiki
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has_many :default_wiki_wiki_pages, :class_name => 'WikiPage', :through => :wiki, :source => :wiki_pages, :conditions => ['wiki_pages.workflow_state != ?', 'deleted'], :order => 'wiki_pages.view_count DESC'
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has_many :wiki_namespaces, :as => :context, :dependent => :destroy
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has_many :quizzes, :as => :context, :dependent => :destroy, :order => 'lock_at, title'
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has_many :active_quizzes, :class_name => 'Quiz', :as => :context, :include => :assignment, :conditions => ['quizzes.workflow_state != ?', 'deleted'], :order => 'created_at'
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has_many :assessment_questions, :as => :context
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has_many :assessment_question_banks, :as => :context, :include => [:assessment_questions, :assessment_question_bank_users]
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has_many :external_feeds, :as => :context, :dependent => :destroy
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belongs_to :default_grading_standard, :class_name => 'GradingStandard', :foreign_key => 'grading_standard_id'
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has_many :grading_standards, :as => :context
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has_one :gradebook_upload, :as => :context, :dependent => :destroy
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has_many :web_conferences, :as => :context, :order => 'created_at DESC', :dependent => :destroy
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has_many :rubrics, :as => :context
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has_many :rubric_associations, :as => :context, :include => :rubric, :dependent => :destroy
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has_many :tags, :class_name => 'ContentTag', :as => 'context', :order => 'LOWER(title)', :conditions => {:tag_type => 'default'}, :dependent => :destroy
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has_many :collaborations, :as => :context, :order => 'title, created_at', :dependent => :destroy
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has_one :scribd_account, :as => :scribdable
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has_many :short_message_associations, :as => :context, :include => :short_message, :dependent => :destroy
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has_many :short_messages, :through => :short_message_associations, :dependent => :destroy
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has_many :grading_standards, :as => :context
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has_many :context_messages, :as => :context, :dependent => :destroy
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has_many :context_modules, :as => :context, :order => :position, :dependent => :destroy
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has_many :context_module_tags, :class_name => 'ContentTag', :as => 'context', :order => :position, :conditions => ['tag_type = ?', 'context_module'], :dependent => :destroy
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has_many :media_objects, :as => :context
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has_many :page_views, :as => :context
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has_many :role_overrides, :as => :context
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attr_accessor :import_source
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before_save :assign_uuid
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before_save :assert_defaults
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before_save :set_update_account_associations_if_changed
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before_save :update_enrollments_later
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after_save :update_final_grades_on_weighting_scheme_change
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after_save :update_account_associations_if_changed
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validates_length_of :syllabus_body, :maximum => maximum_long_text_length, :allow_nil => true, :allow_blank => true
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sanitize_field :syllabus_body, Instructure::SanitizeField::SANITIZE
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has_a_broadcast_policy
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def set_update_account_associations_if_changed
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@should_update_account_associations = self.root_account_id_changed? || self.account_id_changed?
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true
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end
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def update_account_associations_if_changed
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send_later_if_production(:update_account_associations) if @should_update_account_associations
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end
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def module_based?
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Rails.cache.fetch(['module_based_course', self].cache_key) do
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self.context_modules.active.any?{|m| m.completion_requirements && !m.completion_requirements.empty? }
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end
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end
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def public_license?
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license && license != 'private'
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end
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def license_data
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case license
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when 'public_domain'
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{
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:readable_license => 'Public Domain',
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:license_url => "http://en.wikipedia.org/wiki/Public_domain"
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}
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when 'cc_by_nc_nd'
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{
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:readable_license => 'CC Attribution Non-Commercial No Derivatives',
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:license_url => "http://creativecommons.org/licenses/by-nc-nd/3.0/"
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}
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when 'cc_by_nc_sa'
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{
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:readable_license => 'CC Attribution Non-Commercial Share Alike',
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:license_url => "http://creativecommons.org/licenses/by-nc-sa/3.0"
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}
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when 'cc_by_nc'
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{
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:readable_license => 'CC Attribution Non-Commercial',
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:license_url => "http://creativecommons.org/licenses/by-nc/3.0"
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}
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when 'cc_by_nd'
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{
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:readable_license => 'CC Attribution No Derivatives',
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:license_url => "http://creativecommons.org/licenses/by-nd/3.0"
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}
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when 'cc_by_sa'
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{
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:readable_license => 'CC Attribution Share Alike',
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:license_url => "http://creativecommons.org/licenses/by-sa/3.0"
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}
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when 'cc_by'
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{
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:readable_license => 'CC Attribution',
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:license_url => "http://creativecommons.org/licenses/by/3.0"
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}
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else
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{
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:readable_license => 'Private (Copyrighted)',
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:license_url => "http://en.wikipedia.org/wiki/Copyright"
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}
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end
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end
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def license_url
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license_data[:license_url]
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end
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def readable_license
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license_data[:readable_license]
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end
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def self.update_account_associations(course_ids)
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Course.find_all_by_id(course_ids).compact.each do |course|
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course.update_account_associations
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end
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end
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def has_outcomes
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Rails.cache.fetch(['has_outcomes', self].cache_key) do
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self.learning_outcome_tags.count > 0
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end
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end
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def update_account_associations(update_user_account_associations = true)
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# Look up the current associations, and remove any duplicates.
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associations_hash = {}
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to_delete = {}
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self.course_account_associations.each do |association|
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if !associations_hash[association.account_id]
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associations_hash[association.account_id] = association
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to_delete[association.account_id] = association
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else
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association.destroy
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end
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end
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did_an_update = false
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# Courses are tied to accounts directly and through cross-listed sections.
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initial_entities = [self] + self.course_sections.active.find(:all, :include => { :abstract_course => :department })
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initial_entities.each do |entity|
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accounts = if entity.is_a?(Course) && entity.account
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entity.account.account_chain
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elsif entity.abstract_course && entity.abstract_course.department
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entity.abstract_course.department.account_chain
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else
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[ ]
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end
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accounts.each_with_index do |account, idx|
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section = (entity.is_a?(Course) ? entity.default_section : entity)
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if associations_hash[account.id]
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unless associations_hash[account.id].depth == idx && associations_hash[account.id].course_section_id == section.id
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associations_hash[account.id].update_attributes(:depth => idx, :course_section_id => section.id)
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did_an_update = true
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end
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to_delete.delete(account.id)
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else
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self.course_account_associations.create(:account_id => account.id, :depth => idx, :course_section_id => section.id)
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did_an_update = true
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end
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end
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end
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to_delete.each_value {|association| association.destroy; did_an_update = true }
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if did_an_update && update_user_account_associations
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self.users.each {|u| u.update_account_associations }
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end
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true
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end
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# objects returned from this query will give you an additional attribute "page_views_count" that you can use, so:
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# Account.first.courses.most_active(10).first.page_views_count #=> "466"
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named_scope :most_active, lambda { |limit|
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{
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:select => '`courses`.*, COUNT(*) AS page_views_count',
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:joins => [:page_views],
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:order => "page_views_count DESC",
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:group => '`courses`.id',
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:limit => limit
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}
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}
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named_scope :recently_started, lambda {
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{:conditions => ['start_at < ? and start_at > ?', Time.now, 1.month.ago], :order => 'start_at DESC', :limit => 10}
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}
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named_scope :recently_ended, lambda {
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{:conditions => ['conclude_at < ? and conclude_at > ?', Time.now, 1.month.ago], :order => 'start_at DESC', :limit => 10}
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}
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named_scope :recently_created, lambda {
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{:conditions => ['created_at > ?', 1.month.ago], :order => 'created_at DESC', :limit => 50, :include => :teachers}
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}
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named_scope :for_term, lambda {|term|
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term ? {:conditions => ['courses.enrollment_term_id = ?', term.id]} : {}
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}
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named_scope :active_first, lambda {
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{:order => "CASE WHEN workflow_state='available' THEN 0 ELSE 1 END, name"}
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}
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named_scope :limit, lambda {|limit|
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{:limit => limit }
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}
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named_scope :name_like, lambda { |name|
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{ :conditions => ["courses.name LIKE ?", "%#{name}%"] }
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}
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named_scope :needs_account, lambda{|account, limit|
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{:conditions => {:account_id => nil, :root_account_id => account.id}, :limit => limit }
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}
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named_scope :active, lambda{
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{:conditions => ['courses.workflow_state != ?', 'deleted'] }
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}
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named_scope :least_recently_updated, lambda{|limit|
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{:order => 'updated_at', :limit => limit }
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}
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named_scope :manageable_by_user, lambda{|user_id|
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{
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:joins => {:teacher_enrollments => {}, :course_account_associations => :account_users},
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:conditions => ["enrollments.user_id = ? OR account_users.user_id = ?", user_id, user_id],
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:select => "DISTINCT(courses.id), courses.name"
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}
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}
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named_scope :not_deleted, {:conditions => ['workflow_state != ?', 'deleted']}
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set_broadcast_policy do |p|
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p.dispatch :grade_weight_changed
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p.to { participating_students }
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p.whenever { |record|
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(record.available? && @grade_weight_changed) ||
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record.changed_in_state(:available, :fields => :group_weighting_scheme)
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}
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p.dispatch :new_course
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p.to { self.root_account.account_users }
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p.whenever { |record|
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record.root_account &&
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((record.just_created && record.name != "My Course") ||
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(record.prior_version.name == 'My Course' && record.name != "My Course"))
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}
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end
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def paginate_users_not_in_groups(groups, page, per_page = 15)
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User.paginate_by_sql(["SELECT u.id, u.name
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FROM users u
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INNER JOIN enrollments e ON e.user_id = u.id
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WHERE e.course_id = ? AND e.workflow_state NOT IN ('rejected', 'completed', 'deleted') AND e.type = 'StudentEnrollment'
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#{"AND NOT EXISTS (SELECT *
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FROM group_memberships gm
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WHERE gm.user_id = u.id AND
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gm.group_id IN (#{groups.map(&:id).join ','}))" unless groups.empty?}
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ORDER BY u.sortable_name ASC", self.id], :page => page, :per_page => per_page)
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end
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def admins_in_charge_of(user_id)
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section_ids = current_enrollments.find(:all, :select => 'course_section_id, course_id, user_id, limit_priveleges_to_course_section', :conditions => {:course_id => self.id, :user_id => user_id}).map(&:course_section_id).compact.uniq
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if section_ids.empty?
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participating_admins
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else
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participating_admins.for_course_section(section_ids)
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end
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end
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def user_is_teacher?(user)
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return unless user
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cache_key = [self, user, "course_user_is_teacher"].cache_key
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res = Rails.cache.read(cache_key)
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if res.nil?
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res = user.cached_current_enrollments.any? { |e| e.course_id == self.id && e.participating_admin? }
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Rails.cache.write(cache_key, res)
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end
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res
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end
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memoize :user_is_teacher?
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def user_is_student?(user)
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return unless user
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cache_key = [self, user, "course_user_is_student"].cache_key
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res = Rails.cache.read(cache_key)
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if res.nil?
|
|
res = !self.student_enrollments.find_by_user_id(user.id).nil?
|
|
Rails.cache.write(cache_key, res)
|
|
end
|
|
res
|
|
end
|
|
memoize :user_is_student?
|
|
|
|
def grade_weight_changed!
|
|
@grade_weight_changed = true
|
|
self.save!
|
|
@grade_weight_changed = false
|
|
end
|
|
|
|
def membership_for_user(user)
|
|
self.enrollments.find_by_user_id(user && user.id)
|
|
end
|
|
|
|
def assert_defaults
|
|
Hashtag.find_or_create_by_hashtag(self.hashtag) if self.hashtag && self.hashtag != ""
|
|
self.tab_configuration ||= [] unless self.tab_configuration == []
|
|
self.name = nil if self.name && self.name.strip.empty?
|
|
self.name ||= "Unnamed Course"
|
|
self.course_code = nil if self.course_code == "" || (self.name_changed? && self.course_code && self.name_was && self.name_was.match(Regexp.new("^" + self.course_code)))
|
|
if !self.course_code && self.name
|
|
res = []
|
|
split = self.name.split(/\s/)
|
|
res << split[0]
|
|
res << split[1..-1].find{|txt| txt.match(/\d/) } rescue nil
|
|
self.course_code = res.compact.join(" ")
|
|
end
|
|
@group_weighting_scheme_changed = self.group_weighting_scheme_changed?
|
|
self.indexed = nil unless self.is_public
|
|
if self.account_id && self.account_id_changed?
|
|
a = Account.find_by_id(self.account_id)
|
|
self.root_account_id = a.root_account_id if a
|
|
self.root_account_id ||= a.id if a
|
|
self.root_account = Account.find_by_id(self.root_account_id) if self.root_account && self.root_account.id != self.root_account_id
|
|
end
|
|
if self.root_account_id && self.root_account_id_changed?
|
|
a = Account.find_by_id(self.account_id)
|
|
self.account_id = nil if self.account_id && self.account_id != self.root_account_id && a && a.root_account_id != self.root_account_id
|
|
self.account_id ||= self.root_account_id
|
|
end
|
|
self.root_account_id ||= Account.default.id
|
|
self.account_id ||= self.root_account_id
|
|
self.enrollment_term
|
|
self.enrollment_term = nil if self.enrollment_term && self.enrollment_term.root_account_id != self.root_account_id
|
|
self.enrollment_term ||= self.root_account.default_enrollment_term
|
|
self.publish_grades_immediately = true if self.publish_grades_immediately == nil
|
|
self.abstract_course_id ||= self.course_sections.active.map(&:abstract_course_id).compact.first
|
|
self.abstract_course_id ||= AbstractCourse.create!(:root_account => self.root_account, :course_code => self.course_code, :name => self.name).id
|
|
self.allow_student_wiki_edits = (self.default_wiki_editing_roles || "").split(',').include?('students')
|
|
true
|
|
end
|
|
|
|
def update_course_section_names
|
|
return if @course_name_was == self.name || !@course_name_was
|
|
sections = self.course_sections
|
|
fields_to_possibly_rename = [:name, :section_code, :long_section_code]
|
|
sections.each do |section|
|
|
something_changed = false
|
|
fields_to_possibly_rename.each do |field|
|
|
section.send("#{field}=", section.default_section ?
|
|
self.name :
|
|
(section.send(field) || self.name).sub(@course_name_was, self.name) )
|
|
something_changed = true if section.send(field) != section.send("#{field}_was")
|
|
end
|
|
if something_changed
|
|
attr_hash = {:updated_at => Time.now}
|
|
fields_to_possibly_rename.each { |key| attr_hash[key] = section.send(key) }
|
|
CourseSection.update_all(attr_hash, {:id => section.id})
|
|
end
|
|
end
|
|
end
|
|
|
|
def update_enrollments_later
|
|
send_later(:update_enrolled_users) if !self.new_record? && !(self.changes.keys & ['workflow_state', 'name', 'course_code']).empty?
|
|
true
|
|
end
|
|
|
|
def update_enrolled_users
|
|
if self.completed?
|
|
enrollments = self.enrollments.scoped(:select => "id, user_id, course_id", :conditions=>"workflow_state IN ('active', 'invited')")
|
|
Enrollment.update_all({:workflow_state => 'completed'}, {:id => enrollments.map(&:id)})
|
|
end
|
|
enrollments = self.enrollments.scoped(:select => "id, user_id, course_id")
|
|
Enrollment.update_all({:updated_at => Time.now}, {:id => enrollments.map(&:id)})
|
|
User.update_all({:updated_at => Time.now}, {:id => enrollments.map(&:user_id)})
|
|
end
|
|
|
|
def self_enrollment_allowed?
|
|
!sis_source_id && (!self.root_account || self.root_account == Account.default)
|
|
end
|
|
|
|
def self_enrollment_code
|
|
Digest::MD5.hexdigest("#{uuid}_for_#{id}")
|
|
end
|
|
memoize :self_enrollment_code
|
|
|
|
def update_final_grades_on_weighting_scheme_change
|
|
if @group_weighting_scheme_changed
|
|
Enrollment.send_later_if_production(:recompute_final_grade, self.students.map(&:id), self.id)
|
|
end
|
|
end
|
|
|
|
def recompute_student_grades
|
|
Enrollment.send_later_if_production(:recompute_final_grade, self.students.map(&:id), self.id)
|
|
end
|
|
|
|
def home_page
|
|
WikiNamespace.default_for_context(self).wiki.wiki_page
|
|
end
|
|
|
|
def trim_name(length=25)
|
|
self.name ||= "Course"
|
|
self.course_code ||= self.name
|
|
self.name.length > length ? self.course_code : self.name
|
|
end
|
|
|
|
def context_code
|
|
raise "DONT USE THIS, use .short_name instead" unless ENV['RAILS_ENV'] == "production"
|
|
end
|
|
|
|
def allow_media_comments?
|
|
true || [].include?(self.id)
|
|
end
|
|
|
|
def short_name
|
|
course_code
|
|
end
|
|
|
|
def short_name=(val)
|
|
write_attribute(:course_code, val)
|
|
end
|
|
|
|
# Allows the account to be set directly
|
|
belongs_to :account
|
|
|
|
def wiki
|
|
res = Wiki.find_by_id(self.wiki_id)
|
|
unless res
|
|
res = WikiNamespace.default_for_context(self).wiki
|
|
self.wiki_id = res.id if res
|
|
self.save
|
|
end
|
|
res
|
|
end
|
|
|
|
# A universal lookup for all messages.
|
|
def messages
|
|
Message.for(self)
|
|
end
|
|
|
|
def do_complete
|
|
self.conclude_at ||= Time.now
|
|
end
|
|
|
|
def do_offer
|
|
self.start_at ||= Time.now
|
|
send_later_if_production(:invite_uninvited_students)
|
|
end
|
|
|
|
def invite_uninvited_students
|
|
self.enrollments.find_all_by_workflow_state("creation_pending").each do |e|
|
|
e.invite!
|
|
end
|
|
end
|
|
|
|
def hashtag_model
|
|
Hashtag.find_by_hashtag(self.hashtag) if self.hashtag
|
|
end
|
|
|
|
workflow do
|
|
state :created do
|
|
event :claim, :transitions_to => :claimed
|
|
event :offer, :transitions_to => :available
|
|
event :abort_it, :transitions_to => :aborted
|
|
event :complete, :transitions_to => :completed
|
|
end
|
|
|
|
state :claimed do
|
|
event :offer, :transitions_to => :available
|
|
event :abort_it, :transitions_to => :aborted
|
|
event :complete, :transitions_to => :completed
|
|
end
|
|
|
|
state :available do
|
|
event :abort_it, :transitions_to => :aborted
|
|
event :complete, :transitions_to => :completed
|
|
end
|
|
|
|
state :aborted
|
|
state :completed
|
|
state :deleted
|
|
end
|
|
|
|
alias_method :destroy!, :destroy
|
|
def destroy
|
|
self.workflow_state = 'deleted'
|
|
save!
|
|
end
|
|
|
|
def call_event(event)
|
|
self.send(event) if self.current_state.events.include? event.to_sym
|
|
end
|
|
|
|
def claim_with_teacher(user)
|
|
raise "Must provide a valid teacher" unless user
|
|
return unless self.state == :created
|
|
e = enroll_user(user, 'TeacherEnrollment', :enrollment_state => 'active') #teacher(user)
|
|
claim
|
|
e
|
|
end
|
|
|
|
def self.require_assignment_groups(contexts)
|
|
courses = contexts.select{|c| c.is_a?(Course) }
|
|
hash = {}
|
|
courses.each{|c| hash[c.id] = {:found => false, :course => c} }
|
|
groups = AssignmentGroup.find(:all, {:select => "id, context_id, context_type", :conditions => {:context_type => "Course", :context_id => courses.map(&:id)}})
|
|
groups.each{|c| hash[c.context_id][:found] = true }
|
|
hash.select{|id, obj| !obj[:found] }.each{|id, obj| obj[:course].require_assignment_group rescue nil }
|
|
end
|
|
|
|
def require_assignment_group
|
|
has_group = Rails.cache.read(['has_assignment_group', self].cache_key)
|
|
return if has_group && ENV['RAILS_ENV'] == 'production'
|
|
if self.assignment_groups.active.empty?
|
|
self.assignment_groups.create(:name => "Assignments")
|
|
end
|
|
Rails.cache.write(['has_assignment_group', self].cache_key, true)
|
|
end
|
|
|
|
def self.create_unique(uuid=nil, account_id=nil, root_account_id=nil)
|
|
uuid ||= UUIDSingleton.instance.generate
|
|
course = find_or_initialize_by_uuid(uuid)
|
|
course = Course.new if course.deleted?
|
|
course.name = "My Course" if course.new_record?
|
|
course.short_name = "Course-101" if course.new_record?
|
|
course.account_id = account_id || root_account_id
|
|
course.root_account_id = root_account_id
|
|
course.save!
|
|
course
|
|
end
|
|
|
|
def <=>(other)
|
|
self.id <=> other.id
|
|
end
|
|
|
|
def quota
|
|
# in megabytes
|
|
Rails.cache.fetch(['default_quota', self].cache_key) do
|
|
return read_attribute(:storage_quota) || (self.account.default_storage_quota rescue nil) || 500
|
|
end
|
|
end
|
|
|
|
def storage_quota=(val)
|
|
val = val.to_f
|
|
val = nil if val <= 0
|
|
if account && account.default_storage_quota == val
|
|
val = nil
|
|
end
|
|
write_attribute(:storage_quota, val)
|
|
end
|
|
|
|
def assign_uuid
|
|
self.uuid ||= UUIDSingleton.instance.generate
|
|
end
|
|
protected :assign_uuid
|
|
|
|
def full_name
|
|
name
|
|
end
|
|
|
|
def to_atom
|
|
Atom::Entry.new do |entry|
|
|
entry.title = self.name
|
|
entry.updated = self.updated_at
|
|
entry.published = self.created_at
|
|
entry.links << Atom::Link.new(:rel => 'alternate',
|
|
:href => "/#{context_url_prefix}/courses/#{self.id}")
|
|
end
|
|
end
|
|
|
|
set_policy do
|
|
# There are two types of read permissions for a course. If a course is public,
|
|
# then visitors can "read" content in the site, but shouldn't be able to see
|
|
# confidential information, and shouldn't be taken to things like the dashboard view.
|
|
# "read_full" implies access to the dashboard and course roster.
|
|
given { |user| self.available? && self.is_public }
|
|
set { can :read }
|
|
|
|
RoleOverride.permissions.each do |permission, params|
|
|
given {|user, session| self.enrollment_allows(user, session, permission) || self.account_membership_allows(user, session, permission) }
|
|
set { can permission }
|
|
end
|
|
|
|
given { |user, session| session && session[:enrollment_uuid] && (hash = Enrollment.course_user_state(self, session[:enrollment_uuid]) || {}) && hash[:enrollment_state] == "invited" }
|
|
set { can :read }
|
|
|
|
given { |user, session| session && session[:enrollment_uuid] && (hash = Enrollment.course_user_state(self, session[:enrollment_uuid]) || {}) && hash[:enrollment_state] == "active" && hash[:user_state] == "pre_registered" }
|
|
set { can :read }
|
|
|
|
given { |user| self.available? && user && user.cached_current_enrollments.any?{|e| e.course_id == self.id && !e.rejected? && !e.deleted? } }
|
|
set { can :read }
|
|
|
|
given { |user| self.available? && user && user.cached_current_enrollments.any?{|e| e.course_id == self.id && e.participating_student? } }
|
|
set { can :read and can :participate_as_student and can :read_grades and can :read_groups }
|
|
|
|
given { |user| self.completed? && user && user.cached_current_enrollments.any?{|e| e.course_id == self.id && e.participating_student? } }
|
|
set { can :read and can :read_groups }
|
|
|
|
given { |user| (self.available? || self.completed?) && user && user.cached_not_ended_enrollments.any?{|e| e.course_id == self.id && e.participating_observer? } }
|
|
set { can :read }
|
|
|
|
given { |user, session| self.available? && self.teacherless? && user && user.cached_not_ended_enrollments.any?{|e| e.course_id == self.id && e.participating_student? } && (!session || !session["role_course_#{self.id}"]) }
|
|
set { can :update and can :delete and RoleOverride.teacherless_permissions.each{|p| can p } }
|
|
|
|
given { |user, session| (self.available? || self.created? || self.claimed? || self.completed?) && user && user.cached_not_ended_enrollments.any?{|e| e.course_id == self.id && e.participating_admin? } && (!session || !session["role_course_#{self.id}"]) }
|
|
set { can :read and can :manage and can :manage_content and can :impersonate_as_context_member and can :update and can :delete and can :read_reports and can :read_groups and can :create_user_notes and can :read_user_notes and can :delete_user_notes }
|
|
|
|
given { |user| self.prior_enrollments.map(&:user_id).include?(user && user.id) }
|
|
set { can :read}
|
|
|
|
given { |user| self.prior_enrollments.select{|e| e.student? || e.assigned_observer? }.map(&:user_id).include?(user && user.id) }
|
|
set { can :read and can :read_grades}
|
|
|
|
given { |user, session| session && session["role_course_#{self.id}"] }
|
|
set { can :read }
|
|
|
|
given { |user, session| user && AccountUser.for_user_and_account?(user, self.account_id) && (!session || !session["role_course_#{self.id}"]) rescue false }
|
|
set { can :update and can :manage and can :manage_content and can :impersonate_as_context_member and can :delete and can :create and can :read and can :read_groups }
|
|
|
|
given { |user, session| user && AccountUser.for_user_and_account?(user, self.root_account_id) && (!session || !session["role_course_#{self.id}"]) rescue false } #self.root_account.users.include?(user) rescue false }
|
|
set { can :update and can :manage and can :manage_content and can :impersonate_as_context_member and can :delete and can :create and can :read and can :read_groups }
|
|
|
|
given { |user, session| user && Account.site_admin_user?(user) && (!session || !session["role_course_#{self.id}"]) rescue false }
|
|
set { can :update and can :manage and can :manage_content and can :impersonate_as_context_member and can :delete and can :create and can :read and can :read_groups }
|
|
end
|
|
|
|
def enrollment_allows(user, session, permission)
|
|
return false unless user && permission
|
|
@enrollment_lookup ||= {}
|
|
@enrollment_permission_lookup ||= (Rails.cache.read([self, 'enrollment_permission_lookup'].cache_key) || {}).dup
|
|
if session && temp_type = session["role_course_#{self.id}"]
|
|
@enrollment_lookup[user.id] = [Enrollment.typed_enrollment(temp_type).new(:course_id => self.id, :user_id => user.id, :workflow_state => 'active')] rescue nil
|
|
elsif session && session[:session_affects_permissions]
|
|
@enrollment_lookup[user.id] = nil
|
|
end
|
|
|
|
if !@enrollment_permission_lookup.has_key?([user.id, permission]) || (session && session[:session_affects_permissions])
|
|
@enrollment_lookup[user.id] ||= self.enrollments.active_or_pending.for_user(user)
|
|
@enrollment_permission_lookup[[user.id, permission]] = @enrollment_lookup[user.id].any?{|e| e.has_permission_to?(permission) }
|
|
unless session && session[:session_affects_permissions]
|
|
Rails.cache.write([self, 'enrollment_permission_lookup'].cache_key, @enrollment_permission_lookup.dup)
|
|
end
|
|
end
|
|
@enrollment_permission_lookup[[user.id, permission]]
|
|
end
|
|
|
|
def self.find_all_by_context_code(codes)
|
|
ids = codes.map{|c| c.match(/\Acourse_(\d+)\z/)[1] rescue nil }.compact
|
|
Course.find(:all, :conditions => {:id => ids}, :include => :current_enrollments)
|
|
end
|
|
|
|
def state_sortable
|
|
case state
|
|
when :invited
|
|
1
|
|
when :creation_pending
|
|
1
|
|
when :active
|
|
0
|
|
when :deleted
|
|
5
|
|
when :course_inactivated
|
|
3
|
|
when :rejected
|
|
4
|
|
when :completed
|
|
2
|
|
else
|
|
6
|
|
end
|
|
end
|
|
|
|
def has_outcomes?
|
|
self.learning_outcomes.count > 0
|
|
end
|
|
|
|
def account_chain
|
|
self.account.account_chain
|
|
end
|
|
|
|
def institution_name
|
|
return self.root_account.name if self.root_account_id != Account.default.id
|
|
return (self.account || self.root_account).name
|
|
end
|
|
memoize :institution_name
|
|
|
|
def account_membership_allows(user, session, permission)
|
|
return false unless user && permission && AccountUser.any_for?(user) #.for_user(user).length > 0
|
|
return false if session && session["role_course_#{self.id}"]
|
|
@membership_allows ||= {}
|
|
@membership_allows[[user.id, permission]] ||= (self.associated_accounts + [Account.site_admin]).uniq.any?{|a| a.membership_allows(user, permission) }
|
|
end
|
|
|
|
def teacherless?
|
|
# TODO: I need a better test for teacherless courses... in the mean time we'll just do this
|
|
return false
|
|
@teacherless_course ||= Rails.cache.fetch(['teacherless_course', self].cache_key) do
|
|
!self.sis_source_id && self.teacher_enrollments.empty?
|
|
end
|
|
end
|
|
|
|
def wiki_namespace
|
|
WikiNamespace.default_for_context(self)
|
|
end
|
|
|
|
def to_csv(options = {})
|
|
if all? { |e| e.respond_to?(:to_row) }
|
|
header_row = first.export_columns(options[:format]).to_csv
|
|
content_rows = map { |e| e.to_row(options[:format]) }.map(&:to_csv)
|
|
([header_row] + content_rows).join
|
|
else
|
|
FasterCSV.generate_line(self, options)
|
|
end
|
|
end
|
|
|
|
def gradebook_to_csv(options = {})
|
|
assignments = self.assignments.active.gradeable
|
|
assignments = [assignments.find(options[:assignment_id])] if options[:assignment_id]
|
|
single = assignments.length == 1
|
|
student_enrollments = self.student_enrollments.scoped({:include => [:user, :course_section]}).find(:all, :order => "users.sortable_name")
|
|
submissions = self.submissions.inject({}) { |h, sub|
|
|
h[[sub.user_id, sub.assignment_id]] = sub; h
|
|
}
|
|
res = FasterCSV.generate do |csv|
|
|
#First row
|
|
row = ["Student", "ID", "Section"]
|
|
row.concat(assignments.map{|a| single ? [a.title_with_id, 'Comments'] : a.title_with_id})
|
|
row.concat(["Current Score", "Final Score"])
|
|
csv << row.flatten
|
|
|
|
#Second Row
|
|
row = [" Points Possible", "", ""]
|
|
row.concat(assignments.map{|a| single ? [a.points_possible, ''] : a.points_possible})
|
|
row.concat(["(read only)", "(read only)"])
|
|
csv << row.flatten
|
|
|
|
student_enrollments.each do |student_enrollment|
|
|
student = student_enrollment.user
|
|
student_section = (student_enrollment.course_section.display_name rescue nil) || ""
|
|
student_submissions = assignments.map do |a|
|
|
submission = submissions[[student.id, a.id]]
|
|
score = submission && submission.score ? submission.score : ""
|
|
data = [score, ''] rescue ["", '']
|
|
single ? data : data[0]
|
|
end
|
|
#Last Row
|
|
row = [student.last_name_first, student.id, student_section]
|
|
row.concat(student_submissions)
|
|
row.concat([student_enrollment.computed_current_score, student_enrollment.computed_final_score])
|
|
csv << row.flatten
|
|
end
|
|
end
|
|
end
|
|
|
|
def participants
|
|
(participating_admins + participating_students).uniq
|
|
end
|
|
|
|
def enroll_user(user, type='StudentEnrollment', opts={})
|
|
enrollment_state = opts[:enrollment_state]
|
|
section = opts[:section]
|
|
invitation_email = opts[:invitation_email]
|
|
limit_priveleges_to_course_section = opts[:limit_priveleges_to_course_section]
|
|
section ||= self.default_section
|
|
enrollment_state ||= self.available? ? "invited" : "creation_pending"
|
|
enrollment_state = 'invited' if enrollment_state == 'creation_pending' && (type == 'TeacherEnrollment' || type == 'TaEnrollment')
|
|
e = self.enrollments.find_by_user_id_and_type(user.id, type) if user
|
|
e.update_attributes(:workflow_state => 'invited', :course_section => section, :limit_priveleges_to_course_section => limit_priveleges_to_course_section) if e && (e.completed? || e.rejected?)
|
|
e ||= self.send(type.underscore.pluralize).create(:user => user, :workflow_state => enrollment_state, :course_section => section, :invitation_email => invitation_email, :limit_priveleges_to_course_section => limit_priveleges_to_course_section)
|
|
self.claim if self.created? && e && e.admin?
|
|
e
|
|
end
|
|
|
|
def enroll_student(user)
|
|
enroll_user(user, 'StudentEnrollment')
|
|
end
|
|
|
|
def enroll_ta(user)
|
|
enroll_user(user, 'TaEnrollment')
|
|
end
|
|
|
|
def enroll_teacher(user)
|
|
enroll_user(user, 'TeacherEnrollment')
|
|
end
|
|
|
|
def resubmission_for(asset_string)
|
|
admins.each{|u| u.ignored_item_changed!(asset_string, 'grading') }
|
|
end
|
|
|
|
def gradebook_json
|
|
to_json(
|
|
:include_root => false,
|
|
:include => {
|
|
:active_assignments => {},
|
|
:students => {
|
|
:include => {
|
|
:submissions => {
|
|
:include => :quiz_submission
|
|
}
|
|
}
|
|
}
|
|
})
|
|
end
|
|
|
|
def add_aggregate_entries(entries, feed)
|
|
if feed.feed_purpose == 'announcements'
|
|
entries.each do |entry|
|
|
user = entry.user || feed.user
|
|
# If already existed and has been updated
|
|
if entry.entry_changed? && entry.asset
|
|
entry.asset.update_attributes(
|
|
:title => entry.title,
|
|
:message => entry.message
|
|
)
|
|
elsif !entry.asset
|
|
announcement = self.announcements.build(
|
|
:title => entry.title,
|
|
:message => entry.message
|
|
)
|
|
announcement.user = user
|
|
announcement.save
|
|
entry.update_attributes(:asset => announcement)
|
|
end
|
|
end
|
|
elsif feed.feed_purpose == 'calendar'
|
|
entries.each do |entry|
|
|
user = entry.user || feed.user
|
|
# If already existed and has been updated
|
|
if entry.entry_changed? && entry.asset
|
|
event = entry.asset
|
|
event.attributes = {
|
|
:title => entry.title,
|
|
:description => entry.message,
|
|
:start_at => entry.start_at,
|
|
:end_at => entry.end_at
|
|
}
|
|
event.workflow_state = 'cancelled' if entry.cancelled?
|
|
event.save
|
|
elsif entry.active? && !entry.asset
|
|
event = self.calendar_events.build(
|
|
:title => entry.title,
|
|
:description => entry.message,
|
|
:start_at => entry.start_at,
|
|
:end_at => entry.end_at
|
|
)
|
|
event.workflow_state = 'read_only'
|
|
event.workflow_state = 'cancelled' if entry.cancelled?
|
|
event.save
|
|
entry.update_attributes(:asset => event)
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
def readable_default_wiki_editing_roles
|
|
roles = self.default_wiki_editing_roles || "teachers"
|
|
case roles
|
|
when 'teachers'
|
|
'Only Teachers'
|
|
when 'teachers,students'
|
|
'Teacher and Students'
|
|
when 'teachers,students,public'
|
|
'Anyone'
|
|
else
|
|
'Only Teachers'
|
|
end
|
|
end
|
|
|
|
def default_section
|
|
self.course_sections.active.find_or_create_by_default_section(true) #name("Default Course Section")
|
|
end
|
|
|
|
def assert_section
|
|
if self.course_sections.active.empty?
|
|
default = self.default_section
|
|
default.workflow_state = 'active'
|
|
default.save
|
|
end
|
|
end
|
|
|
|
def file_structure_for(user)
|
|
User.file_structure_for(self, user)
|
|
end
|
|
|
|
|
|
def merge_in(course, options={})
|
|
return [] if course == self
|
|
res = merge_into_course(course, options)
|
|
course.course_sections.active.each do |section|
|
|
if options[:all_sections] || options[section.asset_string.to_sym]
|
|
section.move_to_course(self)
|
|
end
|
|
end
|
|
res
|
|
end
|
|
|
|
def self.copy_authorized_content(html, to_context, user)
|
|
return html unless to_context
|
|
pairs = []
|
|
content_types_to_copy = ['files']
|
|
matches = html.scan(/\/(courses|groups|users)\/(\d+)\/(\w+)/) do |match|
|
|
pairs << [match[0].singularize, match[1].to_i] if content_types_to_copy.include?(match[2])
|
|
end
|
|
pairs = pairs.select{|p| p[0] != to_context.class.to_s || p[1] != to_context.id }
|
|
pairs.uniq.each do |context_type, id|
|
|
context = Context.find_by_asset_string("#{context_type}_#{id}") rescue nil
|
|
if context
|
|
if context.grants_right?(user, nil, :manage_content)
|
|
html = self.migrate_content_links(html, context, to_context, content_types_to_copy)
|
|
else
|
|
html = self.migrate_content_links(html, context, to_context, content_types_to_copy, user)
|
|
end
|
|
end
|
|
end
|
|
html
|
|
end
|
|
|
|
def turnitin_settings
|
|
# check if somewhere up the account chain turnitin is enabled and
|
|
# has valid settings
|
|
self.account.turnitin_settings
|
|
end
|
|
|
|
def turnitin_pledge
|
|
self.account.closest_turnitin_pledge
|
|
end
|
|
|
|
def all_turnitin_comments
|
|
comments = self.account.closest_turnitin_comments || ""
|
|
if self.turnitin_comments && !self.turnitin_comments.empty?
|
|
comments += "\n\n" if comments && !comments.empty?
|
|
comments += self.turnitin_comments
|
|
end
|
|
self.extend TextHelper
|
|
format_message(comments).first
|
|
end
|
|
|
|
def turnitin_enabled?
|
|
!!self.turnitin_settings
|
|
end
|
|
|
|
def self.migrate_content_links(html, from_context, to_context, supported_types=nil, user_to_check_for_permission=nil)
|
|
return html unless from_context
|
|
@merge_mappings ||= {}
|
|
limit_migrations_to_listed_types = !!supported_types
|
|
from_name = "courses"
|
|
from_name = "users" if from_context.is_a?(User)
|
|
from_name = "groups" if from_context.is_a?(Group)
|
|
to_name = "courses"
|
|
to_name = "users" if to_context.is_a?(User)
|
|
to_name = "groups" if to_context.is_a?(Group)
|
|
regex = Regexp.new("/#{from_name}/#{from_context.id}/([^\\s]*)")
|
|
html ||= ""
|
|
html = html.gsub(regex) do |relative_url|
|
|
sub_spot = $1
|
|
matched = false
|
|
is_sub_item = false
|
|
{'assignments' => Assignment,
|
|
'calendar_events' => CalendarEvent,
|
|
'discussion_topics' => DiscussionTopic,
|
|
'collaborations' => Collaboration,
|
|
'files' => Attachment,
|
|
'conferences' => WebConference,
|
|
'quizzes' => Quiz,
|
|
'groups' => Group
|
|
}.each do |type, obj_class|
|
|
sub_regex = Regexp.new("#{type}/(\\d+)[^\\s]*$")
|
|
is_sub_item ||= sub_spot.match(sub_regex)
|
|
next if matched || (supported_types && !supported_types.include?(type))
|
|
if item = sub_spot.match(sub_regex)
|
|
matched = sub_spot.match(sub_regex)
|
|
new_id = @merge_mappings["#{obj_class.to_s.underscore}_#{item[1]}"]
|
|
allow_migrate_content = true
|
|
if user_to_check_for_permission
|
|
allow_migrate_content = from_context.grants_right?(user_to_check_for_permission, nil, :manage_content)
|
|
if !allow_migrate_content
|
|
obj = obj_class.find(item[1]) rescue nil
|
|
allow_migrate_content = true if obj && obj.respond_to?(:grants_right?) && obj.grants_right?(user_to_check_for_permission, nil, :read)
|
|
allow_migrate_content = false if obj && obj.respond_to?(:locked_for?) && obj.locked_for?(user_to_check_for_permission)
|
|
end
|
|
end
|
|
if !new_id && allow_migrate_content && to_context != from_context
|
|
new_obj = obj_class.find_or_create_for_new_context(to_context, from_context, item[1]) rescue nil
|
|
new_id ||= new_obj.id if new_obj
|
|
end
|
|
if !limit_migrations_to_listed_types || new_id
|
|
relative_url = relative_url.gsub("#{type}/#{item[1]}", new_id ? "#{type}/#{new_id}" : "#{type}")
|
|
end
|
|
end
|
|
end
|
|
if is_sub_item && !matched
|
|
relative_url
|
|
else
|
|
relative_url = relative_url.gsub("/#{from_name}/#{from_context.id}", "/#{to_name}/#{to_context.id}")
|
|
end
|
|
end
|
|
if !limit_migrations_to_listed_types
|
|
regex = Regexp.new("include_contexts=[^\\s&]*#{from_context.asset_string}")
|
|
html = html.gsub(regex) do |match|
|
|
match.gsub("#{from_context.asset_string}", "#{to_context.asset_string}")
|
|
end
|
|
html = html.gsub(HostUrl.context_host(from_context), HostUrl.context_host(to_context))
|
|
end
|
|
html
|
|
end
|
|
|
|
def migrate_content_links(html, from_course)
|
|
Course.migrate_content_links(html, from_course, self)
|
|
end
|
|
|
|
attr_accessor :merge_results
|
|
def log_merge_result(text)
|
|
@merge_results ||= []
|
|
logger.debug text
|
|
@merge_results << text
|
|
end
|
|
def warn_merge_result(text)
|
|
log_merge_result(text)
|
|
end
|
|
|
|
def bool_res(val)
|
|
val == '1' || val == true || val == 'yes'
|
|
end
|
|
|
|
def boolean_hash(hash)
|
|
res = {}
|
|
hash.each do |key, val|
|
|
res[key] = true if bool_res(hash[key])
|
|
end
|
|
end
|
|
|
|
def process_migration_files(data, migration)
|
|
return unless data['all_files_export'] && data['all_files_export']['file_path']
|
|
return unless File.exist?(data['all_files_export']['file_path'])
|
|
|
|
params = migration.migration_settings[:migration_ids_to_import]
|
|
valid_paths = []
|
|
(data['file_map'] || {}).each do |id, file|
|
|
if !migration.context.attachments.detect { |f| f.migration_id == file['migration_id'] }
|
|
path = file['path_name'].starts_with?('/') ? file['path_name'][1..-1] : file['path_name']
|
|
if params[:copy][:files]
|
|
valid_paths << path if (bool_res(params[:copy][:files][file['migration_id'].to_sym]) rescue false)
|
|
else
|
|
valid_paths << path
|
|
end
|
|
end
|
|
end
|
|
valid_paths = [0] if valid_paths.empty? && params[:copy] && params[:copy][:files]
|
|
logger.debug "adding #{valid_paths.length} files"
|
|
total = valid_paths.length
|
|
if valid_paths != [0]
|
|
current = 0
|
|
last = current
|
|
callback = Proc.new do
|
|
current += 1
|
|
if (current - last) > 10
|
|
last = current
|
|
migration.fast_update_progress((current.to_f/total) * 20.0)
|
|
end
|
|
end
|
|
unzipper = UnzipAttachment.new(:course => migration.context, :filename => data['all_files_export']['file_path'], :valid_paths => valid_paths, :callback => callback, :logger => logger)
|
|
migration.fast_update_progress(1.0)
|
|
unzipper.process
|
|
end
|
|
end
|
|
private :process_migration_files
|
|
|
|
def import_from_migration(data, params, migration)
|
|
params ||= {:copy=>{}}
|
|
logger.debug "starting import"
|
|
@full_migration_hash = data
|
|
@external_url_hash = {}
|
|
@migration_results = []
|
|
(data['web_link_categories'] || []).map{|c| c['links'] }.flatten.each do |link|
|
|
@external_url_hash[link['link_id']] = link
|
|
end
|
|
ActiveRecord::Base.skip_touch_context
|
|
@imported_migration_items = []
|
|
|
|
# These only need to be processed once
|
|
process_migration_files(data, migration)
|
|
migration.fast_update_progress(20)
|
|
Attachment.process_migration(data, migration)
|
|
migration.fast_update_progress(30)
|
|
question_data = AssessmentQuestion.process_migration(data, migration)
|
|
migration.fast_update_progress(35)
|
|
Group.process_migration(data, migration)
|
|
LearningOutcome.process_migration(data, migration)
|
|
Rubric.process_migration(data, migration)
|
|
AssignmentGroup.process_migration(data, migration)
|
|
migration.fast_update_progress(40)
|
|
Quiz.process_migration(data, migration, question_data)
|
|
migration.fast_update_progress(50)
|
|
|
|
2.times do |i|
|
|
DiscussionTopic.process_migration(data, migration)
|
|
WikiPage.process_migration(data, migration)
|
|
migration.fast_update_progress((i==0 ? 55 : 75))
|
|
Assignment.process_migration(data, migration)
|
|
ContextModule.process_migration(data, migration)
|
|
migration.fast_update_progress((i==0 ? 65 : 80))
|
|
end
|
|
#These aren't referenced by anything, but reference other things
|
|
CalendarEvent.process_migration(data, migration)
|
|
WikiPage.process_migration_course_outline(data, migration)
|
|
migration.fast_update_progress(90)
|
|
|
|
#Adjust dates
|
|
if bool_res(params[:copy][:shift_dates])
|
|
shift_options = (bool_res(params[:copy][:shift_dates]) rescue false) ? params[:copy] : {}
|
|
@imported_migration_items.each do |event|
|
|
if event.is_a?(Assignment)
|
|
event.due_at = shift_date(self, event.due_at, shift_options)
|
|
event.lock_at = shift_date(self, event.lock_at, shift_options)
|
|
event.unlock_at = shift_date(self, event.unlock_at, shift_options)
|
|
event.peer_reviews_due_at = shift_date(self, event.peer_reviews_due_at, shift_options)
|
|
event.save_without_broadcasting!
|
|
elsif event.is_a?(DiscussionTopic)
|
|
event.delayed_post_at = shift_date(self, event.delayed_post_at, shift_options)
|
|
event.save_without_broadcasting!
|
|
elsif event.is_a?(CalendarEvent)
|
|
event.start_at = shift_date(self, event.start_at, shift_options)
|
|
event.end_at = shift_date(self, event.end_at, shift_options)
|
|
event.save_without_broadcasting!
|
|
end
|
|
end
|
|
end
|
|
migration.progress=100
|
|
migration.migration_settings ||= {}
|
|
migration.migration_settings[:imported_assets] = @imported_migration_items.map(&:asset_string)
|
|
migration.workflow_state = :imported
|
|
migration.save
|
|
ActiveRecord::Base.skip_touch_context(false)
|
|
self.touch
|
|
@imported_migration_items
|
|
end
|
|
attr_accessor :imported_migration_items
|
|
attr_accessor :full_migration_hash
|
|
attr_accessor :external_url_hash
|
|
attr_accessor :folder_name_lookups
|
|
|
|
def backup_to_json
|
|
backup.to_json
|
|
end
|
|
|
|
def backup
|
|
res = []
|
|
res += self.folders.active
|
|
res += self.attachments.active
|
|
res += self.assignment_groups.active
|
|
res += self.assignments.active
|
|
res += self.submissions
|
|
res += self.quizzes
|
|
res += self.discussion_topics.active
|
|
res += self.discussion_entries.active
|
|
res += self.wiki.wiki_pages.active
|
|
res += self.calendar_events.active
|
|
res
|
|
end
|
|
|
|
def may_have_links_to_migrate(item)
|
|
@to_migrate_links ||= []
|
|
@to_migrate_links << item
|
|
end
|
|
|
|
def map_merge(old_item, new_item)
|
|
@merge_mappings ||= {}
|
|
@merge_mappings[old_item.asset_string] = new_item && new_item.id
|
|
end
|
|
|
|
def merge_mapped_id(old_item)
|
|
@merge_mappings ||= {}
|
|
return nil unless old_item
|
|
return @merge_mappings[old_item] if old_item.is_a?(String)
|
|
@merge_mappings[old_item.asset_string]
|
|
end
|
|
|
|
def same_dates?(old, new, columns)
|
|
old && new && columns.all?{|column|
|
|
old.respond_to?(column) && new.respond_to?(column) && old.send(column) == new.send(column)
|
|
}
|
|
end
|
|
|
|
attr_accessor :merge_mappings
|
|
def merge_into_course(course, options)
|
|
course_import = options[:import]
|
|
@merge_mappings = {}
|
|
@merge_results = []
|
|
to_shift_dates = []
|
|
@to_migrate_links = []
|
|
added_items = []
|
|
delete_placeholder = nil
|
|
if self.assignment_groups.length == 1 && self.assignment_groups.first.name == "Assignments" && self.assignment_groups.first.assignments.empty?
|
|
delete_placeholder = self.assignment_groups.first
|
|
self.group_weighting_scheme = course.group_weighting_scheme
|
|
elsif self.assignment_groups.length == 0
|
|
self.group_weighting_scheme = course.group_weighting_scheme
|
|
end
|
|
# There are groups to migrate
|
|
course.assignment_groups.active.each do |group|
|
|
if bool_res(options[:everything]) || bool_res(options[:all_assignments]) || bool_res(options[group.asset_string.to_sym])
|
|
new_group = group.clone_for(self)
|
|
added_items << new_group
|
|
new_group.save_without_broadcasting!
|
|
map_merge(group, new_group)
|
|
end
|
|
end
|
|
course.assignments.no_graded_quizzes_or_topics.active.select{|a| a.assignment_group_id }.each do |assignment|
|
|
course_import.tick(15) if course_import
|
|
if bool_res(options[:everything]) || bool_res(options[:all_assignments]) || bool_res(options[assignment.asset_string.to_sym])
|
|
new_assignment = assignment.clone_for(self, nil, :migrate => false)
|
|
to_shift_dates << new_assignment if new_assignment.clone_updated || same_dates?(assignment, new_assignment, [:due_at, :lock_at, :unlock_at, :peer_reviews_due_at])
|
|
added_items << new_assignment
|
|
new_assignment.save_without_broadcasting!
|
|
map_merge(assignment, new_assignment)
|
|
end
|
|
end
|
|
# next, attachments
|
|
map_merge(Folder.root_folders(course).first, Folder.root_folders(self).first)
|
|
course.attachments.all(:conditions => "file_state <> 'deleted'").each do |file|
|
|
course_import.tick(30) if course_import
|
|
if bool_res(options[:everything] ) || bool_res(options[:all_files] ) || bool_res(options[file.asset_string.to_sym] )
|
|
new_file = file.clone_for(self)
|
|
added_items << new_file
|
|
new_folder_id = merge_mapped_id(file.folder)
|
|
# make sure the file has somewhere to go
|
|
if !new_folder_id
|
|
# gather mapping of needed folders from old course to new course
|
|
old_folders = []
|
|
old_folders << file.folder
|
|
new_folders = []
|
|
new_folders << old_folders.last.clone_for(self, nil, options.merge({:include_subcontent => false}))
|
|
while old_folders.last.parent_folder && old_folders.last.parent_folder.parent_folder_id && !merge_mapped_id(old_folders.last.parent_folder)
|
|
old_folders << old_folders.last.parent_folder
|
|
new_folders << old_folders.last.clone_for(self, nil, options.merge({:include_subcontent => false}))
|
|
end
|
|
added_items += new_folders
|
|
old_folders.reverse!
|
|
new_folders.reverse!
|
|
# try to use folders that already match if possible
|
|
final_new_folders = []
|
|
parent_folder = Folder.root_folders(self).first
|
|
old_folders.each_with_index do |folder, idx|
|
|
if f = parent_folder.active_sub_folders.find_by_name(folder.name)
|
|
final_new_folders << f
|
|
else
|
|
final_new_folders << new_folders[idx]
|
|
end
|
|
parent_folder = final_new_folders.last
|
|
end
|
|
# add or update the folder structure needed for the file
|
|
final_new_folders.first.parent_folder_id ||=
|
|
merge_mapped_id(old_folders.first.parent_folder) ||
|
|
Folder.root_folders(self).first.id
|
|
old_folders.each_with_index do |folder, idx|
|
|
final_new_folders[idx].save!
|
|
map_merge(folder, final_new_folders[idx])
|
|
final_new_folders[idx + 1].parent_folder_id ||= final_new_folders[idx].id if final_new_folders[idx + 1]
|
|
end
|
|
new_folder_id = merge_mapped_id(file.folder)
|
|
end
|
|
new_file.folder_id = new_folder_id
|
|
new_file.save_without_broadcasting!
|
|
map_merge(file, new_file)
|
|
end
|
|
end
|
|
course.discussion_topics.active.each do |topic|
|
|
course_import.tick(40) if course_import
|
|
if bool_res(options[:everything] ) || bool_res(options[:all_topics] ) || bool_res(options[topic.asset_string.to_sym] ) || (topic.assignment_id && bool_res(options["assignment_#{topic.assignment_id}"]))
|
|
# also make sure you clone the attachment!!!
|
|
new_topic = topic.clone_for(self, nil, :migrate => bool_res(options["#{topic.asset_string}_entries".to_sym] ), :include_entries => false)
|
|
to_shift_dates << new_topic if new_topic.delayed_post_at && (new_topic.clone_updated || same_dates?(topic, new_topic, [:delayed_post_at]))
|
|
to_shift_dates << new_topic.assignment if new_topic.assignment && (new_topic.assignment_clone_updated || same_dates?(topic.assignment, new_topic.assignment, [:due_at, :lock_at, :unlock_at, :peer_reviews_due_at]))
|
|
added_items << new_topic
|
|
added_items << new_topic.assignment if new_topic.assignment
|
|
new_topic.save_without_broadcasting!
|
|
map_merge(topic, new_topic)
|
|
end
|
|
end
|
|
course.calendar_events.active.each do |event|
|
|
course_import.tick(50) if course_import
|
|
if bool_res(options[:everything] ) || bool_res(options[:all_calendar_events] ) || bool_res(options[event.asset_string.to_sym] )
|
|
new_event = event.clone_for(self, nil, :migrate => false)
|
|
to_shift_dates << new_event if new_event.clone_updated || same_dates?(event, new_event, [:start_at, :end_at])
|
|
added_items << new_event
|
|
new_event.save_without_broadcasting!
|
|
map_merge(event, new_event)
|
|
end
|
|
end
|
|
course.quizzes.active.each do |quiz|
|
|
course_import.tick(60) if course_import
|
|
if bool_res(options[:everything] ) || bool_res(options[:all_quizzes] ) || bool_res(options[quiz.asset_string.to_sym] ) || (quiz.assignment_id && bool_res(["assignment_#{quiz.assignment_id}"]))
|
|
new_quiz = quiz.clone_for(self)
|
|
to_shift_dates << new_quiz if new_quiz.clone_updated || same_dates?(quiz, new_quiz, [:due_at, :lock_at, :unlock_at])
|
|
added_items << new_quiz
|
|
added_items << new_quiz.assignment if new_quiz.assignment
|
|
new_quiz.save!
|
|
map_merge(quiz, new_quiz)
|
|
end
|
|
end
|
|
course.wiki_namespaces.each do |wiki_namespace|
|
|
wiki_namespace.wiki.wiki_pages.each do |page|
|
|
course_import.tick(70) if course_import
|
|
if bool_res(options[:everything] ) || bool_res(options[:all_wiki_pages] ) || bool_res(options[page.asset_string.to_sym] )
|
|
new_page = page.clone_for(self, nil, :migrate => false, :old_context => course)
|
|
added_items << new_page
|
|
new_page.wiki_id = self.wiki.id
|
|
new_page.ensure_unique_title
|
|
log_merge_result("Wiki Page \"#{page.title}\" renamed to \"#{new_page.title}\"") if new_page.title != page.title
|
|
new_page.save_without_broadcasting!
|
|
map_merge(page, new_page)
|
|
end
|
|
end
|
|
end
|
|
course.context_modules.active.each do |mod|
|
|
course_import.tick(80) if course_import
|
|
if bool_res(options[:everything] ) || bool_res(options[:all_modules] ) || bool_res(options[mod.asset_string.to_sym] )
|
|
new_mod = mod.clone_for(self)
|
|
to_shift_dates << new_mod if new_mod.clone_updated || same_dates?(mod, new_mod, [:unlock_at, :start_at, :end_at])
|
|
new_mod.save!
|
|
added_items << new_mod
|
|
map_merge(mod, new_mod)
|
|
end
|
|
end
|
|
|
|
# Groups could be created by objects with attached assignments as well. (like quizzes/topics)
|
|
# So don't delete the placeholder until everything has been cloned
|
|
delete_placeholder.destroy if delete_placeholder && self.assignment_groups.length > 1
|
|
|
|
@to_migrate_links.uniq.each do |obj|
|
|
course_import.tick(85) if course_import
|
|
if obj.is_a?(Assignment)
|
|
obj.description = migrate_content_links(obj.description, course)
|
|
elsif obj.is_a?(CalendarEvent)
|
|
obj.description = migrate_content_links(obj.description, course)
|
|
elsif obj.is_a?(DiscussionTopic)
|
|
obj.message = migrate_content_links(obj.message, course)
|
|
obj.discussion_entries.each do |entry|
|
|
entry.message = migrate_content_links(obj.message, course)
|
|
entry.save_without_broadcasting!
|
|
end
|
|
elsif obj.is_a?(WikiPage)
|
|
obj.body = migrate_content_links(obj.body, course)
|
|
elsif obj.is_a?(Quiz)
|
|
obj.description = migrate_content_links(obj.description, course)
|
|
end
|
|
obj.save_without_broadcasting! rescue obj.save!
|
|
end
|
|
if !to_shift_dates.empty? && bool_res(options[:shift_dates])
|
|
log_merge_result("Moving events to new dates")
|
|
shift_options = (bool_res(options[:shift_dates]) rescue false) ? options : {}
|
|
to_shift_dates.uniq.each do |event|
|
|
course_import.tick(100) if course_import
|
|
if event.is_a?(Assignment)
|
|
event.due_at = shift_date(course, event.due_at, shift_options)
|
|
event.lock_at = shift_date(course, event.lock_at, shift_options)
|
|
event.unlock_at = shift_date(course, event.unlock_at, shift_options)
|
|
event.peer_reviews_due_at = shift_date(course, event.peer_reviews_due_at, shift_options)
|
|
elsif event.is_a?(DiscussionTopic)
|
|
event.delayed_post_at = shift_date(course, event.delayed_post_at, shift_options)
|
|
log_merge_result("The Topic \"#{event.title}\" won't be posted until #{event.delayed_post_at.to_s}")
|
|
elsif event.is_a?(CalendarEvent)
|
|
event.start_at = shift_date(course, event.start_at, shift_options)
|
|
event.end_at = shift_date(course, event.end_at, shift_options)
|
|
elsif event.is_a?(Quiz)
|
|
event.due_at = shift_date(course, event.due_at, shift_options)
|
|
event.lock_at = shift_date(course, event.lock_at, shift_options)
|
|
event.unlock_at = shift_date(course, event.unlock_at, shift_options)
|
|
elsif event.is_a?(ContextModule)
|
|
event.unlock_at = shift_date(course, event.unlock_at, shift_options)
|
|
event.start_at = shift_date(course, event.start_at, shift_options)
|
|
event.end_at = shift_date(course, event.end_at, shift_options)
|
|
end
|
|
event.respond_to?(:save_without_broadcasting!) ? event.save_without_broadcasting! : event.save!
|
|
end
|
|
end
|
|
if course_import
|
|
course_import.added_item_codes = added_items.map{|i| i.asset_string }
|
|
course_import.log = merge_results
|
|
course_import.workflow_state = 'completed'
|
|
course_import.progress = 100
|
|
course_import.save!
|
|
end
|
|
added_items.map{|i| i.asset_string }
|
|
end
|
|
|
|
def self.clonable_attributes
|
|
[:name, :group_weighting_scheme, :start_at, :conclude_at,
|
|
:grading_standard_id, :is_public, :publish_grades_immediately,
|
|
:allow_student_wiki_edits, :allow_student_assignment_edits,
|
|
:hashtag, :show_public_context_messages, :syllabus_body,
|
|
:hidden_tabs, :allow_student_forum_attachments,
|
|
:default_wiki_editing_roles, :allow_student_organized_groups,
|
|
:default_view, :show_all_discussion_entries, :open_enrollment,
|
|
:storage_quota, :tab_configuration, :allow_wiki_comments,
|
|
:turnitin_comments, :self_enrollment, :license, :indexed]
|
|
end
|
|
|
|
def clone_for(account, opts={})
|
|
new_course = Course.new
|
|
root_account = account.root_account || account
|
|
self.attributes.delete_if{|k,v| [:id, :section, :account_id, :workflow_state, :created_at, :updated_at, :root_account_id, :enrollment_term_id, :sis_source_id, :sis_batch_id].include?(k.to_sym) }.each do |key, val|
|
|
new_course.send("#{key}=", val)
|
|
end
|
|
new_course.workflow_state = 'created'
|
|
new_course.name = opts[:name] if opts[:name]
|
|
new_course.account_id = account.id
|
|
new_course.root_account_id = root_account.id
|
|
new_course.enrollment_term_id = opts[:enrollment_term_id]
|
|
new_course.abstract_course_id = self.abstract_course_id
|
|
new_course.save!
|
|
if opts[:copy_content]
|
|
new_course.send_later(:merge_into_course, self, :everything => true)
|
|
end
|
|
new_course
|
|
end
|
|
|
|
def assert_assignment_group
|
|
has_group = Rails.cache.fetch(['has_assignment_group', self.id].cache_key) do
|
|
self.assignment_groups.active.count > 0
|
|
end
|
|
if !has_group
|
|
group = self.assignment_groups.new :name => 'Assignments', :position => 1
|
|
group.save
|
|
end
|
|
end
|
|
|
|
def shift_date(course, time, options={})
|
|
return nil unless time
|
|
time = ActiveSupport::TimeWithZone.new(time.utc, Time.zone)
|
|
old_date = time.to_date
|
|
new_date = old_date.clone
|
|
old_start_date = Date.parse(options[:old_start_date]) rescue course.real_start_date
|
|
old_end_date = Date.parse(options[:old_end_date]) rescue course.real_end_date
|
|
new_start_date = Date.parse(options[:new_start_date]) rescue self.real_start_date
|
|
new_end_date = Date.parse(options[:new_end_date]) rescue self.real_end_date
|
|
return time unless old_start_date && old_end_date && new_start_date && new_end_date
|
|
old_full_diff = old_end_date - old_start_date
|
|
old_event_diff = old_date - old_start_date
|
|
old_event_percent = old_full_diff > 0 ? old_event_diff.to_f / old_full_diff.to_f : 0
|
|
new_full_diff = new_end_date - new_start_date
|
|
new_event_diff = (new_full_diff.to_f * old_event_percent).to_i
|
|
new_date = new_start_date + new_event_diff
|
|
options[:day_substitutions] ||= {}
|
|
options[:day_substitutions][old_date.wday.to_s] ||= old_date.wday.to_s
|
|
if options[:day_substitutions] && options[:day_substitutions][old_date.wday.to_s]
|
|
if new_date.wday != options[:day_substitutions][old_date.wday.to_s].to_i
|
|
new_date += (options[:day_substitutions][old_date.wday.to_s].to_i - new_date.wday) % 7
|
|
new_date -= 7 unless new_date - 7 < new_start_date
|
|
end
|
|
end
|
|
|
|
new_time = ActiveSupport::TimeWithZone.new(Time.utc(new_date.year, new_date.month, new_date.day, (time.hour rescue 0), (time.min rescue 0)), Time.zone) - Time.zone.utc_offset
|
|
log_merge_result("Events for #{old_date.to_s} moved to #{new_date.to_s}")
|
|
new_time
|
|
end
|
|
|
|
def real_start_date
|
|
return self.start_at.to_date if self.start_at
|
|
all_dates.min
|
|
end
|
|
|
|
def all_dates
|
|
(self.calendar_events.active + self.assignments.active).inject([]) {|list, e|
|
|
list << e.end_at if e.end_at
|
|
list << e.start_at if e.start_at
|
|
list
|
|
}.compact.flatten.map{|d| d.to_date }.uniq rescue []
|
|
end
|
|
|
|
def real_end_date
|
|
return self.conclude_at.to_date if self.conclude_at
|
|
all_dates.max
|
|
end
|
|
|
|
def is_a_context?
|
|
true
|
|
end
|
|
|
|
def self.serialization_excludes; [:uuid]; end
|
|
|
|
|
|
def page_views_by_day(options={})
|
|
conditions = {
|
|
:context_id => self.id,
|
|
:context_type => self.class.to_s
|
|
}
|
|
if options[:dates]
|
|
conditions.merge!({
|
|
:created_at, (options[:dates].first)..(options[:dates].last)
|
|
})
|
|
end
|
|
PageView.count(
|
|
:group => "date(created_at)",
|
|
:conditions => conditions
|
|
)
|
|
end
|
|
memoize :page_views_by_day
|
|
|
|
def visibility_limited_to_course_sections?(user)
|
|
section_visibilities = Rails.cache.fetch(['section_visibilities_for', user, self].cache_key) do
|
|
Enrollment.find(:all, :select => "course_section_id, limit_priveleges_to_course_section, type", :conditions => {:user_id => user.id, :course_id => self.id}).map{|e| {:course_section_id => e.course_section_id, :limit_priveleges_to_course_section => e.limit_priveleges_to_course_section, :type => e.type } }
|
|
end
|
|
!section_visibilities.any?{|s| !s[:limit_priveleges_to_course_section] }
|
|
end
|
|
|
|
def students_visible_to(user, include_priors=false)
|
|
section_visibilities = Rails.cache.fetch(['section_visibilities_for', user, self].cache_key) do
|
|
Enrollment.find(:all, :select => "course_section_id, limit_priveleges_to_course_section, type", :conditions => ['user_id = ? AND course_id = ? AND workflow_state != ?', user.id, self.id, 'deleted']).map{|e| {:course_section_id => e.course_section_id, :limit_priveleges_to_course_section => e.limit_priveleges_to_course_section, :type => e.type } }
|
|
end
|
|
users = self.students
|
|
users = self.all_students if include_priors
|
|
if section_visibilities.any?{|s| !s[:limit_priveleges_to_course_section] }
|
|
users
|
|
elsif section_visibilities.empty?
|
|
if self.grants_right?(user, nil, :manage_grades)
|
|
users
|
|
else
|
|
users.scoped({:conditions => ['enrollments.user_id = ? OR enrollments.associated_user_id = ?', user.id, user.id]})
|
|
end
|
|
else
|
|
users.scoped({:conditions => "enrollments.course_section_id IN (#{section_visibilities.map{|s| s[:course_section_id]}.join(",")})"})
|
|
end
|
|
end
|
|
|
|
def page_view_data(options={})
|
|
# if they dont supply a date range then use the first day returned by page_views_by_day (which should be the first day that there is pageview statistics gathered)
|
|
dates = options[:dates].nil? ? [page_views_by_day.sort.first.first.to_datetime, Time.now] : options[:dates]
|
|
days = []
|
|
dates.first.to_datetime.upto(dates.last) do |d|
|
|
# this * 1000 part is because the Highcharts expects something like what Date.UTC(2006, 2, 28) would give you,
|
|
# which is MILLISECONDS from the unix epoch, ruby's to_f gives you SECONDS since then.
|
|
days << [ (d.at_beginning_of_day.to_f * 1000).to_i , page_views_by_day[d.to_date.to_s].to_i ]
|
|
end
|
|
days
|
|
end
|
|
memoize :page_view_data
|
|
|
|
def unpublished?
|
|
self.created? || self.claimed?
|
|
end
|
|
|
|
def only_wiki_is_public
|
|
self.respond_to?(:wiki_is_public) && self.wiki_is_public && !self.is_public
|
|
end
|
|
|
|
def reply_from(opts)
|
|
user = opts[:user]
|
|
message = opts[:text].strip
|
|
user = nil unless user && self.context.users.include?(user)
|
|
if !user
|
|
raise "Only comment participants may reply to messages"
|
|
elsif !message || message.empty?
|
|
raise "Message body cannot be blank"
|
|
else
|
|
recipients = (self.teachers.map(&:id) - [user.id]).join(",")
|
|
ContextMessage.create!({
|
|
:context_id => self.id,
|
|
:context_type => self.class.to_s,
|
|
:user_id => user.id,
|
|
:subject => subject,
|
|
:recipients => recipients,
|
|
:body => message
|
|
})
|
|
end
|
|
end
|
|
|
|
def tab_configuration
|
|
super.map {|h| h.with_indifferent_access } rescue []
|
|
end
|
|
|
|
TAB_HOME = 0
|
|
TAB_SYLLABUS = 1
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|
TAB_PAGES = 2
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|
TAB_ASSIGNMENTS = 3
|
|
TAB_QUIZZES = 4
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|
TAB_GRADES = 5
|
|
TAB_PEOPLE = 6
|
|
TAB_GROUPS = 7
|
|
TAB_DISCUSSIONS = 8
|
|
TAB_CHAT = 9
|
|
TAB_MODULES = 10
|
|
TAB_FILES = 11
|
|
TAB_CONFERENCES = 12
|
|
TAB_SETTINGS = 13
|
|
TAB_ANNOUNCEMENTS = 14
|
|
TAB_OUTCOMES = 15
|
|
TAB_COLLABORATIONS = 16
|
|
|
|
def self.default_tabs
|
|
[
|
|
{ :id => TAB_HOME, :label => "Home", :href => :course_path },
|
|
{ :id => TAB_ANNOUNCEMENTS, :label => "Announcements", :href => :course_announcements_path },
|
|
{ :id => TAB_ASSIGNMENTS, :label => "Assignments", :href => :course_assignments_path },
|
|
{ :id => TAB_DISCUSSIONS, :label => "Discussions", :href => :course_discussion_topics_path },
|
|
{ :id => TAB_GRADES, :label => "Grades", :href => :course_grades_path },
|
|
{ :id => TAB_PEOPLE, :label => "People", :href => :course_users_path },
|
|
{ :id => TAB_CHAT, :label => "Chat", :href => :course_chat_path },
|
|
{ :id => TAB_PAGES, :label => "Pages", :href => :course_wiki_pages_path },
|
|
{ :id => TAB_FILES, :label => "Files", :href => :course_files_path },
|
|
{ :id => TAB_SYLLABUS, :label => "Syllabus", :href => :syllabus_course_assignments_path },
|
|
{ :id => TAB_OUTCOMES, :label => "Outcomes", :href => :course_outcomes_path },
|
|
{ :id => TAB_QUIZZES, :label => "Quizzes", :href => :course_quizzes_path },
|
|
# { :id => TAB_GROUPS, :label => "Groups", :href => :course_groups_path, :hidden => true },
|
|
{ :id => TAB_MODULES, :label => "Modules", :href => :course_context_modules_path },
|
|
{ :id => TAB_CONFERENCES, :label => "Conferences", :href => :course_conferences_path },
|
|
{ :id => TAB_COLLABORATIONS, :label => "Collaborations", :href => :course_collaborations_path },
|
|
{ :id => TAB_SETTINGS, :label => "Settings", :href => :course_details_path },
|
|
]
|
|
end
|
|
|
|
def tabs_available(user=nil, opts={})
|
|
# We will by default show everything in default_tabs, unless the teacher has configured otherwise.
|
|
tabs = self.tab_configuration.compact
|
|
default_tabs = Course.default_tabs
|
|
tabs = tabs.map do |tab|
|
|
default_tab = default_tabs.find {|t| t[:id] == tab[:id] }
|
|
if default_tab
|
|
tab[:label] = default_tab[:label]
|
|
tab[:href] = default_tab[:href]
|
|
default_tabs.delete_if {|t| t[:id] == tab[:id] }
|
|
tab
|
|
else
|
|
# Remove any tabs we don't know about in default_tabs (in case we removed them or something, like Groups)
|
|
nil
|
|
end
|
|
end
|
|
tabs.compact!
|
|
tabs += default_tabs
|
|
|
|
tabs.each do |tab|
|
|
tab[:hidden_unused] = true if tab[:label] == "Modules" && !active_record_types[:modules]
|
|
tab[:hidden_unused] = true if tab[:label] == "Files" && !active_record_types[:files]
|
|
tab[:hidden_unused] = true if tab[:label] == "Quizzes" && !active_record_types[:quizzes]
|
|
tab[:hidden_unused] = true if tab[:label] == "Assignments" && !active_record_types[:assignments]
|
|
tab[:hidden_unused] = true if tab[:label] == "Pages" && !active_record_types[:pages] && !allow_student_wiki_edits
|
|
tab[:hidden_unused] = true if tab[:label] == "Conferences" && !active_record_types[:conferences] && !self.grants_right?(user, nil, :create_conferences)
|
|
tab[:hidden_unused] = true if tab[:label] == "Announcements" && !active_record_types[:announcements]
|
|
tab[:hidden_unused] = true if tab[:label] == "Outcomes" && !active_record_types[:outcomes]
|
|
end
|
|
if !user || !self.grants_right?(user, nil, :manage_content)
|
|
tabs.delete_if{ |t| t[:label] == "Settings"}
|
|
|
|
# remove some tabs for logged-out users or non-students
|
|
tabs.delete_if {|t| [TAB_PEOPLE, TAB_CHAT].include?(t[:id]) } unless self.grants_right?(user, nil, :participate_as_student)
|
|
tabs.delete_if {|t| [TAB_GRADES].include?(t[:id]) } unless self.grants_right?(user, nil, :read_grades)
|
|
|
|
# remove hidden tabs from students
|
|
tabs.delete_if {|t| t[:hidden] || (t[:hidden_unused] && !opts[:include_hidden_unused]) }
|
|
end
|
|
# Uncommenting these lines will always put hidden links after visible links
|
|
# tabs.each_with_index{|t, i| t[:sort_index] = i }
|
|
# tabs = tabs.sort_by{|t| [t[:hidden_unused] || t[:hidden] ? 1 : 0, t[:sort_index]] } if !self.tab_configuration || self.tab_configuration.empty?
|
|
tabs
|
|
end
|
|
memoize :tabs_available
|
|
|
|
def allow_wiki_comments
|
|
read_attribute(:allow_wiki_comments)
|
|
end
|
|
|
|
def account_name
|
|
self.account.name rescue nil
|
|
end
|
|
|
|
def term_name
|
|
self.enrollment_term.name rescue nil
|
|
end
|
|
|
|
def enable_user_notes
|
|
(root_account || account).enable_user_notes rescue false
|
|
end
|
|
|
|
def equella_settings
|
|
account = self.account
|
|
while account
|
|
settings = account.equella_settings
|
|
return settings if settings
|
|
account = account.parent_account
|
|
end
|
|
end
|
|
|
|
# This will move the course to be in the specified account.
|
|
# All enrollments, sections, and other objects attached to the course will also be updated.
|
|
def move_to_account(new_root_account, new_sub_account=nil)
|
|
self.account = new_sub_account || new_root_account
|
|
self.save if new_sub_account
|
|
self.root_account = new_root_account
|
|
user_ids = []
|
|
|
|
CourseSection.find(:all, :conditions=>"course_id = #{self.id}").each do |cs|
|
|
cs.update_attribute(:root_account_id, new_root_account.id)
|
|
end
|
|
|
|
Enrollment.find(:all, :conditions=>"course_id = #{self.id}").each do |e|
|
|
e.update_attribute(:root_account_id, new_root_account.id)
|
|
user_ids << e.user_id
|
|
end
|
|
|
|
self.save
|
|
User.update_account_associations(user_ids)
|
|
end
|
|
|
|
end
|