def execute(self, data_dict):
"""Inspect the data_dict to determine which CRUD operation to perform"""
process = data_dict.get("process", None) # Get the requested process
data = data_dict.get("data", None) # Get the request data
if process == "create":
return self.create(data) # Dispatch to the create function
elif process == "add":
return self.add(data)
elif process == "read":
if data.get("id", None) == None: # 400 if there is no ID given
raise toolkit.ValidationError({}, toolkit._("No ID was given."))
else:
return self.read(data) # Dispatch to the read function
elif process == "update":
if data.get("id", None) == None: # 400 if there is no ID given
raise toolkit.ValidationError({}, toolkit._("No ID was given."))
else:
return self.update(data) # Dispatch to the update function
elif process == "delete":
if data.get("id", None) == None: # 400 if there is no ID given
raise toolkit.ValidationError({}, toolkit._("No ID was given."))
else:
return self.delete(data) # Dispatch to the delete function
else: # 400 if the request didn't contain an appropriate process
raise toolkit.ValidationError({}, toolkit._("Please supply a 'process' attribute in the POST body. Value can be one of: create, read, update, delete"))
def execute(self, data_dict):
"""Inspect the data_dict to determine which CRUD operation to perform"""
process = data_dict.get("process", None) # Get the requested process
data = data_dict.get("data", None) # Get the request data
if process == "create":
return self.create(data) # Dispatch to the create function
elif process == "add":
return self.add(data)
elif process == "read":
if data.get("id", None) == None: # 400 if there is no ID given
raise toolkit.ValidationError({},
toolkit._("No ID was given."))
else:
return self.read(data) # Dispatch to the read function
elif process == "update":
if data.get("id", None) == None: # 400 if there is no ID given
raise toolkit.ValidationError({},
toolkit._("No ID was given."))
else:
return self.update(data) # Dispatch to the update function
elif process == "delete":
if data.get("id", None) == None: # 400 if there is no ID given
raise toolkit.ValidationError({},
toolkit._("No ID was given."))
else:
return self.delete(data) # Dispatch to the delete function
else: # 400 if the request didn't contain an appropriate process
raise toolkit.ValidationError(
{},
toolkit.
_("Please supply a 'process' attribute in the POST body. Value can be one of: create, read, update, delete"
))
def create(self, data):
"""Save a new object to the database"""
if self.valid_data(data):
try:
instance = self.model(**data)
instance.save() # Automatically commits, save() defined by ckan.model.domain_object:DomainObject
print instance.as_dict()
return instance.as_dict() # as_dict() defined by ckan.model.domain_object:DomainObject
except Exception as ex: #
if 'duplicate' in ex.__str__():
raise toolkit.ValidationError({}, toolkit._("Duplicate Entry: %s" % ex.__str__()))
else:
raise toolkit.ValidateError({}, toolkit._(ex.__str__()))
else: # 400 if the data is not valid
raise toolkit.ValidationError({}, toolkit._("Please supply a 'data' attribute containing the appropriate content for a %s instance.") % self.model.__name__)
def add(self, data):
"""Save a new object to the database"""
if self.valid_data(data):
instance = self.model(**data)
instance.add() # No Commit.
return instance.as_dict() # as_dict() defined by ckan.model.domain_object:DomainObject
else: # 400 if the data is not valid
raise toolkit.ValidationError({}, toolkit._("Please supply a 'data' attribute containing the appropriate content for a %s instance.") % self.model.__name__)
def create(self, data):
"""Save a new object to the database"""
if self.valid_data(data):
try:
instance = self.model(**data)
instance.save(
) # Automatically commits, save() defined by ckan.model.domain_object:DomainObject
print instance.as_dict()
return instance.as_dict(
) # as_dict() defined by ckan.model.domain_object:DomainObject
except Exception as ex: #
if 'duplicate' in ex.__str__():
raise toolkit.ValidationError(
{}, toolkit._("Duplicate Entry: %s" % ex.__str__()))
else:
raise toolkit.ValidateError({}, toolkit._(ex.__str__()))
else: # 400 if the data is not valid
raise toolkit.ValidationError(
{},
toolkit.
_("Please supply a 'data' attribute containing the appropriate content for a %s instance."
) % self.model.__name__)
def update(self, data):
"""Update an existing object with new data"""
pk = data.get("id")
instance = self.model.by_id(pk) # by_id() defined by ckanext.ngds.model.ngds_db_object:NgdsDataObject
if instance:
result = instance.as_dict() # as_dict() defined by ckan.model.domain_object:DomainObject
keys = result.keys() # Grab the keys from as_dict(). These represent the update-able attributes of the instance
result.update(data) # generate a dict with updates applied to the existing object
if self.valid_data(result): # Check that the update is feasible
for key in keys: # Cycle through the update-able attributes of the instance
if key in data.keys(): # If the attribute is defined in the incoming data...
setattr(instance, key, data[key]) # Update the attribute of the instance
instance.save() # Done with the loop, save the instance to update the object
return instance.as_dict() # Return it
else: # Update does not produce a valid object, 400
raise toolkit.ValidationError({}, toolkit._("The content supplied in the 'data' attribute would create an invalid %s instance.") % self.model.__name__)
else: # ID did not correspond to an existing object, 400
raise toolkit.ObjectNotFound()
