db/migrate/20170917153509_create_custom_emojis.rb


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class CreateCustomEmojis < ActiveRecord::Migration[5.1]
  def change
    create_table :custom_emojis do |t|
      t.string :shortcode, null: false, default: ''
      t.string :domain
      t.attachment :image

      t.timestamps
    end

    add_index :custom_emojis, [:shortcode, :domain], unique: true
  end
end