85 lines
2.8 KiB
Ruby
85 lines
2.8 KiB
Ruby
module UserSearch
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def self.for_user_in_course(search_term, course, searcher, options = {})
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base_scope = scope_for(course, searcher, options.slice(:enrollment_type, :enrollment_role))
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if search_term.to_s =~ Api::ID_REGEX
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user = base_scope.find_by_id(search_term)
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return [user] if user
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# no user found by id, so lets go ahead with the regular search, maybe this person just has a ton of numbers in their name
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end
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base_scope.where(conditions_statement(search_term))
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end
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def self.conditions_statement(search_term)
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pattern = like_string_for(search_term)
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conditions = []
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if complex_search_enabled?
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conditions << complex_sql << pattern << pattern << CommunicationChannel::TYPE_EMAIL << pattern
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else
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conditions << like_condition('users.name') << pattern
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end
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conditions
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end
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def self.like_string_for(search_term)
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pattern_type = (gist_search_enabled? ? :full : :right)
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wildcard_pattern(search_term, :type => pattern_type)
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end
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def self.scope_for(course, searcher, options={})
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enrollment_role = Array(options[:enrollment_role]) if options[:enrollment_role]
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enrollment_type = Array(options[:enrollment_type]) if options[:enrollment_type]
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users = course.users_visible_to(searcher).scoped(:order => "users.sortable_name")
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if enrollment_role
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users = users.scoped(:conditions => ["COALESCE(enrollments.role_name, enrollments.type) IN (?) ", enrollment_role])
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elsif enrollment_type
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enrollment_type = enrollment_type.map { |e| "#{e.capitalize}Enrollment" }
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if enrollment_type.any?{ |et| !Enrollment::READABLE_TYPES.keys.include?(et) }
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raise ArgumentError, 'Invalid Enrollment Type'
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end
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users = users.scoped(:conditions => ["enrollments.type IN (?) ", enrollment_type])
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end
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users
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end
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private
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def self.complex_sql
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@_complex_sql ||= <<-SQL
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(EXISTS (SELECT 1 FROM pseudonyms
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WHERE #{like_condition('pseudonyms.sis_user_id')}
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AND pseudonyms.user_id = users.id
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AND (pseudonyms.workflow_state IS NULL
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OR pseudonyms.workflow_state != 'deleted'))
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OR (#{like_condition('users.name')})
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OR EXISTS (SELECT 1 FROM communication_channels
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WHERE communication_channels.user_id = users.id
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AND (communication_channels.path_type = ?
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AND #{like_condition('communication_channels.path')})))
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SQL
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end
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def self.gist_search_enabled?
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Setting.get_cached('user_search_with_gist', false) == 'true'
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end
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def self.complex_search_enabled?
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Setting.get_cached('user_search_with_full_complexity', false) == 'true'
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end
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def self.like_condition(value)
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ActiveRecord::Base.like_condition(value)
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end
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def self.wildcard_pattern(value, options)
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ActiveRecord::Base.wildcard_pattern(value, options)
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end
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end
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