şunun yansıması
https://github.com/redmine/redmine.git
eşitlendi 2024-08-27 17:54:48 +02:00
![Jean-Philippe Lang](/assets/img/avatar_default.png)
git-svn-id: http://svn.redmine.org/redmine/trunk@15675 e93f8b46-1217-0410-a6f0-8f06a7374b81
17 satır
616 B
Ruby
17 satır
616 B
Ruby
class AddUniqueIndexToIssueRelations < ActiveRecord::Migration
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def self.up
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# Remove duplicates
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IssueRelation.connection.select_values("SELECT r.id FROM #{IssueRelation.table_name} r" +
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" 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|
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IssueRelation.where(["id = ?", i]).delete_all
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end
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add_index :issue_relations, [:issue_from_id, :issue_to_id], :unique => true
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end
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def self.down
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remove_index :issue_relations, :column => [:issue_from_id, :issue_to_id]
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end
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end
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