canvas-lms/app/models/alert.rb

106 lines
3.2 KiB
Ruby

# frozen_string_literal: true
#
# Copyright (C) 2011 - present 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 Alert < ActiveRecord::Base
belongs_to :context, polymorphic: [:account, :course]
has_many :criteria, :class_name => 'AlertCriterion', :dependent => :destroy, :autosave => true
serialize :recipients
validates_presence_of :context_id
validates_presence_of :context_type
validates_presence_of :criteria
validates_associated :criteria
validates_presence_of :recipients
before_save :infer_defaults
def find_role_by_name(role_name)
context.is_a?(Account) ? context.get_account_role_by_name(role_name) : context.account.get_account_role_by_name(role_name)
end
def resolve_recipients(student_id, teachers = nil)
include_student = false
include_teachers = false
admin_role_ids = []
self.recipients.try(:each) do |recipient|
case
when recipient == :student
include_student = true
when recipient == :teachers
include_teachers = true
when recipient.is_a?(String)
admin_role_ids << find_role_by_name(recipient).id
when recipient.is_a?(Hash)
admin_role_ids << recipient[:role_id]
else
raise "Unsupported recipient type!"
end
end
recipients = []
recipients << student_id if include_student
recipients.concat(Array(teachers)) if teachers.present? && include_teachers
if context_type == 'Account' && !admin_role_ids.empty?
recipients.concat context.account_users.active.where(:role_id => admin_role_ids).distinct.pluck(:user_id)
end
recipients.uniq
end
def infer_defaults
self.repetition = nil if self.repetition.blank?
end
def as_json(*args)
converted_recipients = self.recipients.to_a.map do |recipient|
if recipient.is_a?(String)
find_role_by_name(recipient).id
elsif recipient.is_a?(Hash)
recipient[:role_id]
else
":#{recipient}"
end
end
{
:id => id,
:criteria => criteria.map { |c| c.as_json(:include_root => false) },
:recipients => converted_recipients,
:repetition => repetition
}.with_indifferent_access
end
def criteria=(values)
if values[0].is_a? Hash
values = values.map do |params|
if(params[:id].present?)
id = params.delete(:id).to_i
criterion = self.criteria.to_ary.find { |c| c.id == id }
criterion.attributes = params
else
criterion = self.criteria.build(params)
end
criterion
end
end
self.criteria.replace(values)
end
end