While I don't use this feature, there are developers who do. It's useful when running migrations and changing branches. I'm raising an `ActiveRecord::IrreversibleMigration` exception in every `drop_table` migration because these migrations were all done before version 1.0.0, and so making all of them reversible would be too much work for little benefit.
8 lines
297 B
Ruby
8 lines
297 B
Ruby
class DestroySpendingProposalAssociations < ActiveRecord::Migration[4.2]
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def change
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remove_index :tags, :spending_proposals_count
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remove_column :tags, :spending_proposals_count, :integer, default: 0
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remove_column :valuators, :spending_proposals_count, :integer, default: 0
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end
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end
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