def create(self, data={}, files={}):
"""
Handle a POST request by adding a new model instance.
This view will only do something if BackboneAPIView.add_form_class is specified
by the subclass. This should be a ModelForm corresponding to the model used by
base_queryset.
Backbone.js will send the new object's attributes as json in the request body,
so use our json decoder on it, rather than looking at request.POST.
"""
if self.add_form_class == None:
return False, { 'status': 501 }
if not self.user_has_perm(self.request, None, 'create'):
return False, { 'status': 403 }
form = self.add_form_class(data, files)
if hasattr(form, 'set_request'):
form.set_request(self.request)
if form.is_valid():
new_object = form.save()
logger.info("%s:CREATE:SUCCESS:%s: id=%s, data=%s, files=%s"%\
(self.base_queryset.model.__name__, self.request.user.username, new_object.pk, logging_dict(data), logging_dict(files)))
# Serialize the new object to json using our built-in methods.
# The extra DB read here is not ideal, but it keeps the code DRY:
wrapper_qs = self.base_queryset.filter(id=new_object.id)
return True, self.serialize_qs(wrapper_qs, single_object=True)
else:
logger.warning("%s:CREATE:ERROR:%s: data=%s, files=%s, errors=%s"%\
(self.base_queryset.model.__name__, self.request.user.username, logging_dict(data), logging_dict(files), logging_dict(form.errors)))
return False, { 'errors': form.errors, 'status': 400 }
def create(self, data={}, files={}):
"""
Handle a POST request by adding a new model instance.
This view will only do something if BackboneAPIView.add_form_class is specified
by the subclass. This should be a ModelForm corresponding to the model used by
base_queryset.
Backbone.js will send the new object's attributes as json in the request body,
so use our json decoder on it, rather than looking at request.POST.
"""
if self.add_form_class == None:
return False, {'status': 501}
if not self.user_has_perm(self.request, None, 'create'):
return False, {'status': 403}
form = self.add_form_class(data, files)
if hasattr(form, 'set_request'):
form.set_request(self.request)
if form.is_valid():
new_object = form.save()
logger.info("%s:CREATE:SUCCESS:%s: id=%s, data=%s, files=%s"%\
(self.base_queryset.model.__name__, self.request.user.username, new_object.pk, logging_dict(data), logging_dict(files)))
# Serialize the new object to json using our built-in methods.
# The extra DB read here is not ideal, but it keeps the code DRY:
wrapper_qs = self.base_queryset.filter(id=new_object.id)
return True, self.serialize_qs(wrapper_qs, single_object=True)
else:
logger.warning("%s:CREATE:ERROR:%s: data=%s, files=%s, errors=%s"%\
(self.base_queryset.model.__name__, self.request.user.username, logging_dict(data), logging_dict(files), logging_dict(form.errors)))
return False, {'errors': form.errors, 'status': 400}
def update(self, id, data={}, files={}):
"""
Handle a PUT request by editing an existing model.
This view will only do something if BackboneAPIView.edit_form_class is specified
by the subclass. This should be a ModelForm corresponding to the model used by
base_queryset.
"""
if self.edit_form_class == None:
return False, { 'status': 501 }
qs = self.base_queryset.filter(pk=id)
if not len(qs) == 1:
return False, { 'status': 404 }
instance = qs[0]
if not self.user_has_perm(self.request, instance, 'update'):
return False, { 'status': 404 }
form = self.edit_form_class(data, files, instance=instance)
if hasattr(form, 'set_request'):
form.set_request(self.request)
data_diff = get_data_diff(qs, data)
if form.is_valid():
logger.info("%s:UPDATE:SUCCESS:%s: id=%s, updated_data=%s, files=%s"%\
(self.base_queryset.model.__name__, self.request.user.username, instance.pk, data_diff, logging_dict(files)))
item = form.save()
wrapper_qs = self.base_queryset.filter(id=item.id)
return True, self.serialize_qs(wrapper_qs, single_object=True)
else:
logger.info("%s:UPDATE:ERROR:%s: id=%s, updated_data=%s, files=%s"%\
(self.base_queryset.model.__name__, self.request.user.username, instance.pk, data_diff, logging_dict(files)))
return False, { 'errors': form.errors, 'status': 400 }
def update(self, id, data={}, files={}):
"""
Handle a PUT request by editing an existing model.
This view will only do something if BackboneAPIView.edit_form_class is specified
by the subclass. This should be a ModelForm corresponding to the model used by
base_queryset.
"""
if self.edit_form_class == None:
return False, {'status': 501}
qs = self.base_queryset.filter(pk=id)
if not len(qs) == 1:
return False, {'status': 404}
instance = qs[0]
if not self.user_has_perm(self.request, instance, 'update'):
return False, {'status': 404}
form = self.edit_form_class(data, files, instance=instance)
if hasattr(form, 'set_request'):
form.set_request(self.request)
data_diff = get_data_diff(qs, data)
if form.is_valid():
logger.info("%s:UPDATE:SUCCESS:%s: id=%s, updated_data=%s, files=%s"%\
(self.base_queryset.model.__name__, self.request.user.username, instance.pk, data_diff, logging_dict(files)))
item = form.save()
wrapper_qs = self.base_queryset.filter(id=item.id)
return True, self.serialize_qs(wrapper_qs, single_object=True)
else:
logger.info("%s:UPDATE:ERROR:%s: id=%s, updated_data=%s, files=%s"%\
(self.base_queryset.model.__name__, self.request.user.username, instance.pk, data_diff, logging_dict(files)))
return False, {'errors': form.errors, 'status': 400}
