method

add_lock!

Ruby on Rails latest stable (v7.1.3.2) - 0 notes - Class: ActiveRecord::ConnectionAdapters::DatabaseStatements

1.0.0
1.1.6
1.2.6 (0)
2.0.3 (2)
2.1.0 (0)
2.2.1 (0)
2.3.8 (0)
3.0.0
3.0.9
3.1.0
3.2.1
3.2.8
3.2.13
4.0.2
4.1.8
4.2.1
4.2.7
4.2.9
5.0.0.1
5.1.7
5.2.3
6.0.0
6.1.3.1
6.1.7.7
7.0.0
7.1.3.2
7.1.3.4
What's this?

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v2.3.8) is shown here.

add_lock!(sql, options) public

Appends a locking clause to an SQL statement. This method modifies the sql parameter.

  # SELECT * FROM suppliers FOR UPDATE
  add_lock! 'SELECT * FROM suppliers', :lock => true
  add_lock! 'SELECT * FROM suppliers', :lock => ' FOR UPDATE'

Show source

# File activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb, line 216
      def add_lock!(sql, options)
        case lock = options[:lock]
          when true;   sql << ' FOR UPDATE'
          when String; sql << " #{lock}"
        end
      end

add_lock!

Related methods

Method deprecated or moved