def field_repr(request, head, obj, appmodel):
'''Retrive the value of field specified in *head* from an object *obj*.'''
val = None
attrname = head.attrname
if hasattr(obj, attrname):
try:
val = getattr(obj, attrname)
if not isclass(val) and hasattr(val, '__call__'):
val = val()
except Exception as e:
val = str(e)
logger.error('Unhadled exception in field representation',
exc_info=True)
elif hasattr(obj, '__getitem__') and field_name in obj:
val = obj[field_name]
if appmodel:
obj = orms.orm_instance(obj)
val = appmodel.instance_field_value(request, obj, head.code, val)
return nicerepr(val, settings=request.settings)
def make_request(environ, node, instance=None, cache=True):
'''Internal method for creating a :class:`Request` instance.'''
instance = orms.orm_instance(instance)
if not node.error:
view = node.view
model = view.model
if isclass(model):
if not isinstance(instance, model):
try:
# get the instance of model if any
instance = view.instance_from_variables(environ,
node.urlargs)
if is_async(instance):
callback = partial(build_request, environ, node, cache)
return instance.addBoth(
partial(build_request, environ, node, cache))
except Exception as e:
instance = as_failure(e)
else:
instance = None
return build_request(environ, node, cache, instance)
def make_request(environ, node, instance=None, cache=True):
'''Internal method for creating a :class:`Request` instance.'''
instance = orms.orm_instance(instance)
if not node.error:
view = node.view
model = view.model
if isclass(model):
if not isinstance(instance, model):
try:
# get the instance of model if any
instance = view.instance_from_variables(
environ, node.urlargs)
if is_async(instance):
callback = partial(build_request, environ, node, cache)
return instance.addBoth(
partial(build_request, environ, node, cache))
except Exception as e:
instance = as_failure(e)
else:
instance = None
return build_request(environ, node, cache, instance)