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-rw-r--r--db/migrate/20200312185443_add_parent_id_to_email_domain_blocks.rb5
1 files changed, 5 insertions, 0 deletions
diff --git a/db/migrate/20200312185443_add_parent_id_to_email_domain_blocks.rb b/db/migrate/20200312185443_add_parent_id_to_email_domain_blocks.rb
new file mode 100644
index 000000000..03915040c
--- /dev/null
+++ b/db/migrate/20200312185443_add_parent_id_to_email_domain_blocks.rb
@@ -0,0 +1,5 @@
+class AddParentIdToEmailDomainBlocks < ActiveRecord::Migration[5.2]
+  def change
+    add_reference :email_domain_blocks, :parent, null: true, default: nil, foreign_key: { on_delete: :cascade, to_table: :email_domain_blocks }, index: false
+  end
+end