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# frozen_string_literal: true
module WorkItems
module Callbacks
class Assignees < Base
def before_update
params[:assignee_ids] = [] if excluded_in_new_type?
return unless params.present? && params.has_key?(:assignee_ids)
return unless has_permission?(:set_work_item_metadata)
assignee_ids = filter_assignees_count(params[:assignee_ids])
assignee_ids = filter_assignee_permissions(assignee_ids)
return if assignee_ids.sort == work_item.assignee_ids.sort
work_item.assignee_ids = assignee_ids
work_item.touch
end
private
def filter_assignees_count(assignee_ids)
return assignee_ids if work_item.allows_multiple_assignees?
assignee_ids.first(1)
end
def filter_assignee_permissions(assignee_ids)
assignees = User.id_in(assignee_ids)
assignees.select { |assignee| assignee.can?(:read_work_item, work_item) }.map(&:id)
end
end
end
end
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