33 lines
1.0 KiB
Ruby
33 lines
1.0 KiB
Ruby
class AddIndexOnIid < ActiveRecord::Migration
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def change
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RemoveDuplicateIid.clean(Issue)
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RemoveDuplicateIid.clean(MergeRequest, 'target_project_id')
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RemoveDuplicateIid.clean(Milestone)
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add_index :issues, [:project_id, :iid], unique: true
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add_index :merge_requests, [:target_project_id, :iid], unique: true
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add_index :milestones, [:project_id, :iid], unique: true
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end
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end
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class RemoveDuplicateIid
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def self.clean(klass, project_field = 'project_id')
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duplicates = klass.find_by_sql("SELECT iid, #{project_field} FROM #{klass.table_name} GROUP BY #{project_field}, iid HAVING COUNT(*) > 1")
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duplicates.each do |duplicate|
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project_id = duplicate.send(project_field)
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iid = duplicate.iid
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items = klass.of_projects(project_id).where(iid: iid)
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if items.size > 1
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puts "Remove #{klass.name} duplicates for iid: #{iid} and project_id: #{project_id}"
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items.shift
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items.each do |item|
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item.destroy
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puts '.'
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end
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end
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end
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end
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end
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