def create(self, key, value, abstract):
""" Create and index a new node or relationship using the abstract
provided.
"""
batch = LegacyWriteBatch(self.graph)
if self._content_type is Node:
batch.create(abstract)
batch.add_to_index(Node, self, key, value, 0)
elif self._content_type is Relationship:
batch.create(abstract)
batch.add_to_index(Relationship, self, key, value, 0)
else:
raise TypeError(self._content_type)
entity, index_entry = batch.submit()
return entity
def remove(self, key=None, value=None, entity=None):
""" Remove any entries from the index which match the parameters
supplied. The allowed parameter combinations are:
`key`, `value`, `entity`
remove a specific entity indexed under a given key-value pair
`key`, `value`
remove all entities indexed under a given key-value pair
`key`, `entity`
remove a specific entity indexed against a given key but with
any value
`entity`
remove all occurrences of a specific entity regardless of
key and value
"""
if key and value and entity:
t = ResourceTemplate(self.resource.uri.string + "/{key}/{value}/{entity}")
t.expand(key=key, value=value, entity=entity._id).delete()
elif key and value:
uris = [
URI(entity.resource.metadata["indexed"])
for entity in self.get(key, value)
]
batch = LegacyWriteBatch(self.graph)
for uri in uris:
batch.append_delete(uri)
batch.run()
elif key and entity:
t = ResourceTemplate(self.resource.uri.string + "/{key}/{entity}")
t.expand(key=key, entity=entity._id).delete()
elif entity:
t = ResourceTemplate(self.resource.uri.string + "/{entity}")
t.expand(entity=entity._id).delete()
else:
raise TypeError("Illegal parameter combination for index removal")
def remove(self, key=None, value=None, entity=None):
""" Remove any entries from the index which match the parameters
supplied. The allowed parameter combinations are:
`key`, `value`, `entity`
remove a specific entity indexed under a given key-value pair
`key`, `value`
remove all entities indexed under a given key-value pair
`key`, `entity`
remove a specific entity indexed against a given key but with
any value
`entity`
remove all occurrences of a specific entity regardless of
key and value
"""
if key and value and entity:
t = ResourceTemplate(self.resource.uri.string +
"/{key}/{value}/{entity}")
t.expand(key=key, value=value, entity=entity._id).delete()
elif key and value:
uris = [
URI(entity.resource.metadata["indexed"])
for entity in self.get(key, value)
]
batch = LegacyWriteBatch(self.graph)
for uri in uris:
batch.append_delete(uri)
batch.run()
elif key and entity:
t = ResourceTemplate(self.resource.uri.string + "/{key}/{entity}")
t.expand(key=key, entity=entity._id).delete()
elif entity:
t = ResourceTemplate(self.resource.uri.string + "/{entity}")
t.expand(entity=entity._id).delete()
else:
raise TypeError("Illegal parameter combination for index removal")
def create(self, key, value, abstract):
""" Create and index a new node or relationship using the abstract
provided.
"""
batch = LegacyWriteBatch(self.graph)
if self._content_type is Node:
batch.create(abstract)
batch.add_to_index(Node, self, key, value, 0)
elif self._content_type is Relationship:
batch.create(abstract)
batch.add_to_index(Relationship, self, key, value, 0)
else:
raise TypeError(self._content_type)
entity, index_entry = batch.submit()
return entity