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418 B

class CreateAccountNotes < ActiveRecord::Migration[5.2]
def change
create_table :account_notes do |t|
t.references :account, foreign_key: { on_delete: :cascade }, index: false
t.references :target_account, foreign_key: { to_table: :accounts, on_delete: :cascade }
t.text :comment, null: false
t.index [:account_id, :target_account_id], unique: true
t.timestamps
end
end
end