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21 lines
632 B
Ruby
21 lines
632 B
Ruby
# frozen_string_literal: true
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class AddBookmarkPolymorphicColumns < ActiveRecord::Migration[6.1]
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def change
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if !column_exists?(:bookmarks, :bookmarkable_id)
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add_column :bookmarks, :bookmarkable_id, :integer
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end
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if !column_exists?(:bookmarks, :bookmarkable_type)
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add_column :bookmarks, :bookmarkable_type, :string
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end
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if !index_exists?(:bookmarks, %i[user_id bookmarkable_type bookmarkable_id])
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add_index :bookmarks,
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%i[user_id bookmarkable_type bookmarkable_id],
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name: "idx_bookmarks_user_polymorphic_unique",
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unique: true
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end
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end
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end
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