Method _write

tests/comparison/model_translator.py:470–492

Return a sql string representation of the given object.

(self, object_)

                                for values_row in values_clause.values_rows]))

  def _write(self, object_):
    '''Return a sql string representation of the given object.'''
    # What's below is effectively a giant switch statement. It works based on a func
    # naming and signature convention. It should match the incoming object with the
    # corresponding func defined, then call the func and return the result.
    #
    # Ex:
    #   a = model.And(...)
    #   _write(a) should call _write_func(a) because "And" is a subclass of "Func" and no
    #   other _writer_<class name> methods have been defined higher up the method
    #   resolution order (MRO). If _write_and(...) were to be defined, it would be called
    #   instead.
    for type_ in getmro(type(object_)):
      writer_func_name = '_write_' + self._to_py_name(type_.__name__)
      writer_func = getattr(self, writer_func_name, None)
      if writer_func:
        return writer_func(object_)

    # Handle any remaining cases
    if isinstance(object_, Query):
      return self.write_query(object_)

    raise Exception('Unsupported object: %s<%s>' % (type(object_).__name__, object_))

  def get_nulls_order(self, order):
    if self.nulls_order_asc is None: