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 __init__(self, content_type, uri, name=None):
Service.__init__(self)
self._content_type = content_type
key_value_pos = uri.find("/{key}/{value}")
if key_value_pos >= 0:
self._searcher = ResourceTemplate(uri)
self.bind(uri[:key_value_pos])
else:
self.bind(uri)
self._searcher = ResourceTemplate(uri.string + "/{key}/{value}")
uri = self.resource.uri
if self.graph.neo4j_version >= (1, 9):
self._create_or_fail = Resource(
uri.resolve("?uniqueness=create_or_fail"))
self._get_or_create = Resource(
uri.resolve("?uniqueness=get_or_create"))
else:
self._create_or_fail = None
self._get_or_create = Resource(uri.resolve("?unique"))
self._query_template = ResourceTemplate(uri.string + "{?query,order}")
self._name = name or uri.path.segments[-1]
self.__searcher_stem_cache = {}
