method

column_name_with_order_matcher

rails latest stable - Class: ActiveRecord::ConnectionAdapters::Quoting::ClassMethods

column_name_with_order_matcher()

public

Regexp for column names with order (with or without a table name prefix, with or without various order modifiers). Matches the following:

"#{table_name}.#{column_name}"
"#{table_name}.#{column_name} #{direction}"
"#{table_name}.#{column_name} #{direction} NULLS FIRST"
"#{table_name}.#{column_name} NULLS LAST"
"#{column_name}"
"#{column_name} #{direction}"
"#{column_name} #{direction} NULLS FIRST"
"#{column_name} NULLS LAST"

# File activerecord/lib/active_record/connection_adapters/abstract/quoting.rb, line 44
        def column_name_with_order_matcher
          /
            \A
            (
              (?:
                # table_name.column_name | function(one or no argument)
                ((?:\w+\.)?\w+ | \w+\((?:|\g<2>)\))
              )
              (?:\s+ASC|\s+DESC)?
              (?:\s+NULLS\s+(?:FIRST|LAST))?
            )
            (?:\s*,\s*\g<1>)*
            \z
          /x
        end

column_name_with_order_matcher

Method not available on this version

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