38 lines
1.4 KiB
Ruby
38 lines
1.4 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 ObserverEnrollment < Enrollment
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def observer?
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true
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end
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# returns a hash mapping students to arrays of enrollments
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def self.observed_students(context, current_user)
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observer_enrollments = context.observer_enrollments.find(:all, :conditions => ["user_id=? AND associated_user_id IS NOT NULL", current_user.id])
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observed_students = {}
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observer_enrollments.each do |e|
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student_enrollment = StudentEnrollment.active.find_by_user_id_and_course_id(e.associated_user_id, e.course_id)
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next unless student_enrollment
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student = student_enrollment.user
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observed_students[student] ||= []
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observed_students[student] << student_enrollment
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end
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observed_students
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end
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end
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