spogulis no
https://github.com/redmine/redmine.git
synced 2024-08-19 02:10:14 +02:00
![Jean-Philippe Lang](/assets/img/avatar_default.png)
git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11330 e93f8b46-1217-0410-a6f0-8f06a7374b81
25 rindas
1.2 KiB
Ruby
25 rindas
1.2 KiB
Ruby
class AddUniqueIndexOnCustomFieldsProjects < ActiveRecord::Migration
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def up
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table_name = "#{CustomField.table_name_prefix}custom_fields_projects#{CustomField.table_name_suffix}"
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duplicates = CustomField.connection.select_rows("SELECT custom_field_id, project_id FROM #{table_name} GROUP BY custom_field_id, project_id HAVING COUNT(*) > 1")
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duplicates.each do |custom_field_id, project_id|
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# Removes duplicate rows
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CustomField.connection.execute("DELETE FROM #{table_name} WHERE custom_field_id=#{custom_field_id} AND project_id=#{project_id}")
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# And insert one
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CustomField.connection.execute("INSERT INTO #{table_name} (custom_field_id, project_id) VALUES (#{custom_field_id}, #{project_id})")
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end
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if index_exists? :custom_fields_projects, [:custom_field_id, :project_id]
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remove_index :custom_fields_projects, [:custom_field_id, :project_id]
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end
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add_index :custom_fields_projects, [:custom_field_id, :project_id], :unique => true
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end
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def down
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if index_exists? :custom_fields_projects, [:custom_field_id, :project_id]
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remove_index :custom_fields_projects, [:custom_field_id, :project_id]
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end
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add_index :custom_fields_projects, [:custom_field_id, :project_id]
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end
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end
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