jro_apps/redmine Files · db/migrate/20111201201315_add_unique_index_to_issue_relations.rb

Workflow enhancement: editable and required fields configurable by role, tracker and status (#703, #3521)....

Workflow enhancement: editable and required fields configurable by role, tracker and status (#703, #3521). git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@9977 e93f8b46-1217-0410-a6f0-8f06a7374b81

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             20111201201315_add_unique_index_to_issue_relations.rb
        
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             / db / migrate / 20111201201315_add_unique_index_to_issue_relations.rb
          
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      class AddUniqueIndexToIssueRelations < ActiveRecord::Migration

        def self.up

          # Remove duplicates

          IssueRelation.connection.select_values("SELECT r.id FROM #{IssueRelation.table_name} r" +

            " WHERE r.id > (SELECT min(r1.id) FROM #{IssueRelation.table_name} r1 WHERE r1.issue_from_id = r.issue_from_id AND r1.issue_to_id = r.issue_to_id)").each do |i|

              IssueRelation.delete_all(["id = ?", i])

          end

          add_index :issue_relations, [:issue_from_id, :issue_to_id], :unique => true

        end

        def self.down

          remove_index :issue_relations, :column => [:issue_from_id, :issue_to_id]

        end

      end

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				class AddUniqueIndexToIssueRelations < ActiveRecord::Migration
				def self.up

				# Remove duplicates
				IssueRelation.connection.select_values("SELECT r.id FROM #{IssueRelation.table_name} r" +
				" WHERE r.id > (SELECT min(r1.id) FROM #{IssueRelation.table_name} r1 WHERE r1.issue_from_id = r.issue_from_id AND r1.issue_to_id = r.issue_to_id)").each do \|i\|
				IssueRelation.delete_all(["id = ?", i])
				end

				add_index :issue_relations, [:issue_from_id, :issue_to_id], :unique => true
				end

				def self.down
				remove_index :issue_relations, :column => [:issue_from_id, :issue_to_id]
				end
				end