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before destroy callback on maps to remove source_id foreign key relations (#1119)

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Devin Howard 2017-05-13 19:26:43 -07:00 committed by GitHub
parent edce66c44d
commit 10ac64c574
1 changed files with 7 additions and 0 deletions
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7
app/models/map.rb
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@ -42,6 +42,7 @@ class Map < ApplicationRecord
after_create :after_created
after_update :after_updated
after_save :update_deferring_topics_and_synapses, if: :permission_changed?
before_destroy :before_destroyed
delegate :count, to: :topics, prefix: :topic # same as `def topic_count; topics.count; end`
delegate :count, to: :synapses, prefix: :synapse
@ -158,4 +159,10 @@ class Map < ApplicationRecord
end
end
handle_asynchronously :after_updated_async
def before_destroyed
Map.where(source_id: id).find_each do |forked_map|
forked_map.update(source_id: nil)
end
end
end