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-rw-r--r--activestorage/db/update_migrate/20180723000244_add_foreign_key_constraint_to_active_storage_attachments_for_blob_id.rb7
1 files changed, 7 insertions, 0 deletions
diff --git a/activestorage/db/update_migrate/20180723000244_add_foreign_key_constraint_to_active_storage_attachments_for_blob_id.rb b/activestorage/db/update_migrate/20180723000244_add_foreign_key_constraint_to_active_storage_attachments_for_blob_id.rb
new file mode 100644
index 0000000000..6830203cd6
--- /dev/null
+++ b/activestorage/db/update_migrate/20180723000244_add_foreign_key_constraint_to_active_storage_attachments_for_blob_id.rb
@@ -0,0 +1,7 @@
+class AddForeignKeyConstraintToActiveStorageAttachmentsForBlobId < ActiveRecord::Migration[6.0]
+ def up
+ unless foreign_key_exists?(:active_storage_attachments, column: :blob_id)
+ add_foreign_key :active_storage_attachments, :active_storage_blobs, column: :blob_id
+ end
+ end
+end