mastodon/db/migrate/20170901142658_create_join_table_preview_cards_statuses.rb

class CreateJoinTablePreviewCardsStatuses < ActiveRecord::Migration[5.1]
  def change
    create_join_table :preview_cards, :statuses do |t|
      t.index [:status_id, :preview_card_id]
    end
  end
end
Make PreviewCard records reuseable between statuses (#4642) * Make PreviewCard records reuseable between statuses Warning! Migration truncates preview_cards tablec * Allow a wider thumbnail for link preview, display it in horizontal layout (#4648) * Delete preview cards files before truncating * Rename old table instead of truncating it * Add mastodon:maintenance:remove_deprecated_preview_cards * Ignore deprecated_preview_cards in schema definition * Fix null behaviour 2017-09-01 14:20:16 +00:00			`class CreateJoinTablePreviewCardsStatuses < ActiveRecord::Migration[5.1]`
			`def change`
			`create_join_table :preview_cards, :statuses do \|t\|`
			`t.index [:status_id, :preview_card_id]`
			`end`
			`end`
			`end`