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@@ -1,13 +1,32 @@ |
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class ChangeChangesetsRevisionToString < ActiveRecord::Migration |
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def self.up |
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remove_index :changesets, :name => :changesets_repos_rev |
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# Some backends (eg. SQLServer 2012) do not support changing the type |
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# of an indexed column so the index needs to be dropped first |
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# BUT this index is renamed with some backends (at least SQLite3) for |
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# some (unknown) reasons, thus we check for the other name as well |
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# so we don't end up with 2 identical indexes |
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if index_exists? :changesets, [:repository_id, :revision], :name => :changesets_repos_rev |
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remove_index :changesets, :name => :changesets_repos_rev |
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end |
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if index_exists? :changesets, [:repository_id, :revision], :name => :altered_changesets_repos_rev |
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remove_index :changesets, :name => :altered_changesets_repos_rev |
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end |
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change_column :changesets, :revision, :string, :null => false |
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add_index :changesets, [:repository_id, :revision], :unique => true, :name => :changesets_repos_rev |
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end |
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def self.down |
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remove_index :changesets, :name => :changesets_repos_rev |
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if index_exists? :changesets, :changesets_repos_rev |
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remove_index :changesets, :name => :changesets_repos_rev |
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end |
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if index_exists? :changesets, [:repository_id, :revision], :name => :altered_changesets_repos_rev |
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remove_index :changesets, :name => :altered_changesets_repos_rev |
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end |
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change_column :changesets, :revision, :integer, :null => false |
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add_index :changesets, [:repository_id, :revision], :unique => true, :name => :changesets_repos_rev |
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end |
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end |