36 lines
1.1 KiB
Ruby
36 lines
1.1 KiB
Ruby
# frozen_string_literal: true
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class AddThemeIdToJavascriptCache < ActiveRecord::Migration[5.2]
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def up
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# Delete any javascript caches with broken foreign keys
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execute <<~SQL
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DELETE FROM javascript_caches jc
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WHERE NOT EXISTS (
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SELECT 1
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FROM theme_fields tf
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WHERE tf.id = jc.theme_field_id
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);
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SQL
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make_changes
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execute "ALTER TABLE javascript_caches ADD CONSTRAINT enforce_theme_or_theme_field CHECK ((theme_id IS NOT NULL AND theme_field_id IS NULL) OR (theme_id IS NULL AND theme_field_id IS NOT NULL))"
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end
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def down
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execute "ALTER TABLE javascript_caches DROP CONSTRAINT enforce_theme_or_theme_field"
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revert { make_changes }
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end
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private
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def make_changes
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add_reference :javascript_caches, :theme, foreign_key: { on_delete: :cascade }
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add_foreign_key :javascript_caches, :theme_fields, on_delete: :cascade
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begin
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Migration::SafeMigrate.disable!
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change_column_null :javascript_caches, :theme_field_id, true
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ensure
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Migration::SafeMigrate.enable!
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end
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end
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end
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