29 lines
752 B
Ruby
29 lines
752 B
Ruby
# See http://doc.gitlab.com/ce/development/migration_style_guide.html
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# for more information on how to write migrations for GitLab.
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class RemoveDuplicatesFromRoutes < ActiveRecord::Migration
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include Gitlab::Database::MigrationHelpers
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DOWNTIME = false
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def up
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select_all("SELECT path FROM #{quote_table_name(:routes)} GROUP BY path HAVING COUNT(*) > 1").each do |row|
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path = connection.quote(row['path'])
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execute(%Q{
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DELETE FROM #{quote_table_name(:routes)}
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WHERE path = #{path}
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AND id != (
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SELECT id FROM (
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SELECT max(id) AS id
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FROM #{quote_table_name(:routes)}
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WHERE path = #{path}
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) max_ids
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)
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})
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end
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end
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def down
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end
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end
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