def __getattr__(self, name):
#
# This is how things like lake.geom.ST_Buffer(2) creates
# SQL expressions of this form:
#
# ST_Buffer(ST_GeomFromWKB(:ST_GeomFromWKB_1), :param_1)
#
# We create our own _FunctionGenerator here, and use it in place of
# SQLAlchemy's "func" object. This is to be able to "bind" the
# function to the SQL expression. See also GenericFunction above.
func_ = expression._FunctionGenerator(expr=self)
return getattr(func_, name)
def __getattr__(self, name):
#
# This is how things like lake.geom.ST_Buffer(2) creates
# SQL expressions of this form:
#
# ST_Buffer(ST_GeomFromWKB(:ST_GeomFromWKB_1), :param_1)
#
# We create our own _FunctionGenerator here, and use it in place of
# SQLAlchemy's "func" object. This is to be able to "bind" the
# function to the SQL expression. See also GenericFunction above.
func_ = expression._FunctionGenerator(expr=self)
return getattr(func_, name)
def __getattr__(self, name):
# Function names that don't start with "ST_" are rejected.
# This is not to mess up with SQLAlchemy's use of
# hasattr/getattr on Column objects.
if not name.startswith('ST_'):
raise AttributeError
# We create our own _FunctionGenerator here, and use it in place of
# SQLAlchemy's "func" object. This is to be able to "bind" the
# function to the SQL expression. See also GenericFunction above.
func_ = expression._FunctionGenerator(expr=self.expr)
return getattr(func_, name)
def __getattr__(self, name):
# Function names that don't start with "ST_" are rejected.
# This is not to mess up with SQLAlchemy's use of
# hasattr/getattr on Column objects.
if not name.startswith('ST_'):
raise AttributeError
# We create our own _FunctionGenerator here, and use it in place of
# SQLAlchemy's "func" object. This is to be able to "bind" the
# function to the SQL expression. See also GenericFunction above.
func_ = expression._FunctionGenerator(expr=self.expr)
return getattr(func_, name)
