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class RenameAssociationToAssociated < ActiveRecord::Migration
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def self.up
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if index_exists? :audits, [:association_id, :association_type], :name => 'association_index'
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remove_index :audits, :name => 'association_index'
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end
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rename_column :audits, :association_id, :associated_id if column_exists? :audits, :association_id
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rename_column :audits, :association_type, :associated_type if column_exists? :audits, :association_type
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unless index_exists? :audits, [:association_id, :association_type], :name => 'association_index'
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add_index :audits, [:associated_id, :associated_type], :name => 'associated_index'
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end
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end
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def self.down
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if index_exists? :audits, [:associated_id, :associated_type], :name => 'associated_index'
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remove_index :audits, :name => 'associated_index'
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end
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rename_column :audits, :associated_type, :association_type
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rename_column :audits, :associated_id, :association_id
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add_index :audits, [:association_id, :association_type], :name => 'association_index'
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end
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end
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