Module: ActiveRecord::ConnectionAdapters::Quoting::ClassMethods

Defined in:
activerecord/lib/active_record/connection_adapters/abstract/quoting.rb

Overview

:nodoc:

Instance Method Summary collapse

Instance Method Details

#column_name_matcher ⇒ Object

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

"#{table_name}.#{column_name}"
"#{column_name}"



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# File 'activerecord/lib/active_record/connection_adapters/abstract/quoting.rb', line 17

def column_name_matcher
  /
    \A
    (
      (?:
        # table_name.column_name | function(one or no argument)
        ((?:\w+\.)?\w+ | \w+\((?:|\g<2>)\))
      )
      (?:(?:\s+AS)?\s+\w+)?
    )
    (?:\s*,\s*\g<1>)*
    \z
  /ix
end

#column_name_with_order_matcher ⇒ Object

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"



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# File 'activerecord/lib/active_record/connection_adapters/abstract/quoting.rb', line 43

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
  /ix
end

#quote_column_name(column_name) ⇒ Object

Quotes the column name. Must be implemented by subclasses

Raises:

  • (NotImplementedError) 


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# File 'activerecord/lib/active_record/connection_adapters/abstract/quoting.rb', line 60

def quote_column_name(column_name)
  raise NotImplementedError
end

#quote_table_name(table_name) ⇒ Object

Quotes the table name. Defaults to column name quoting.



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# File 'activerecord/lib/active_record/connection_adapters/abstract/quoting.rb', line 65

def quote_table_name(table_name)
  quote_column_name(table_name)
end