canvas-lms/app/models/user_note.rb

72 lines
2.0 KiB
Ruby

#
# Copyright (C) 2011 Instructure, Inc.
#
# This file is part of Canvas.
#
# Canvas is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, version 3 of the License.
#
# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#
class UserNote < ActiveRecord::Base
include Workflow
attr_accessible :user, :note, :title, :creator
belongs_to :user
belongs_to :creator, :class_name => 'User', :foreign_key => :created_by_id
validates_length_of :note, :maximum => maximum_text_length, :allow_nil => true, :allow_blank => true
after_save :update_last_user_note
sanitize_field :note, Instructure::SanitizeField::SANITIZE
workflow do
state :active
state :deleted
end
named_scope :active, :conditions => ['workflow_state != ?', 'deleted']
named_scope :desc_by_date, :order => 'created_at DESC'
set_policy do
given { |user| self.creator == user }
can :delete and can :read
given { |user| self.user.grants_right?(user, nil, :delete_user_notes) }
can :delete and can :read
given { |user| self.user.grants_right?(user, nil, :read_user_notes) }
can :read
end
alias_method :destroy!, :destroy
def destroy
self.workflow_state = 'deleted'
self.deleted_at = Time.now
save!
end
def formatted_note(truncate=nil)
self.extend TextHelper
res = self.note
res = truncate_html(self.note, :max_length => truncate, :words => true) if truncate
res
end
def creator_name
self.creator ? self.creator.name : nil
end
def update_last_user_note
self.user.update_last_user_note
self.user.save
end
end