16 lines
324 B
Ruby
16 lines
324 B
Ruby
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class MakeSiteSettingsUnique < ActiveRecord::Migration[5.2]
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def up
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execute <<~SQL
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DELETE
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FROM site_settings a USING site_settings b
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WHERE a.id < b.id AND a.name = b.name
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SQL
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add_index :site_settings, [:name], unique: true
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end
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def down
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remove_index :site_settings, [:name]
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end
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end
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