def run(query, params=None, config=None, conn=None, **kwargs):
"""Executes a query and depending on the options of the extensions will
return raw data, a ``ResultSet``, a Pandas ``DataFrame`` or a
NetworkX graph.
:param query: string with the Cypher query
:param params: dictionary with parameters for the query (default=``None``)
:param config: Configurable or NamedTuple with extra IPython configuration
details. If ``None``, a new object will be created
(defaults=``None``)
:param conn: connection dictionary or string for the Neo4j backend.
If ``None``, a new connection will be created
(default=``None``)
:param **kwargs: Any of the cell configuration options.
"""
if params is None:
params = {}
if conn is None:
conn = Connection.get(DEFAULT_CONFIGURABLE["uri"])
elif isinstance(conn, string_types):
conn = Connection.get(conn)
if config is None:
default_config = DEFAULT_CONFIGURABLE.copy()
kwargs.update(default_config)
config = DefaultConfigurable(**kwargs)
if query.strip():
# TODO: Handle multiple queries
params = extract_params_from_query(query, params)
result = conn.session.query(query,
params,
data_contents=config.data_contents)
if config.feedback:
print(interpret_stats(result))
resultset = ResultSet(result, query, config)
if config.auto_pandas:
return resultset.get_dataframe()
elif config.auto_networkx:
graph = resultset.get_graph()
resultset.draw()
return graph
else:
return resultset # returning only last result, intentionally
else:
return 'Connected: %s' % conn.name
def run(query, params=None, config=None, conn=None, **kwargs):
"""Executes a query and depending on the options of the extensions will
return raw data, a ``ResultSet``, a Pandas ``DataFrame`` or a
NetworkX graph.
:param query: string with the Cypher query
:param params: dictionary with parameters for the query (default=``None``)
:param config: Configurable or NamedTuple with extra IPython configuration
details. If ``None``, a new object will be created
(defaults=``None``)
:param conn: connection dictionary or string for the Neo4j backend.
If ``None``, a new connection will be created
(default=``None``)
:param **kwargs: Any of the cell configuration options.
"""
if params is None:
params = {}
if conn is None:
conn = Connection.get(DEFAULT_CONFIGURABLE["uri"])
elif isinstance(conn, string_types):
conn = Connection.get(conn)
if config is None:
default_config = DEFAULT_CONFIGURABLE.copy()
kwargs.update(default_config)
config = DefaultConfigurable(**kwargs)
if query.strip():
# TODO: Handle multiple queries
params = extract_params_from_query(query, params)
result = conn.session.query(query, params,
data_contents=config.data_contents)
if config.feedback:
print(interpret_stats(result))
resultset = ResultSet(result, query, config)
if config.auto_pandas:
return resultset.get_dataframe()
elif config.auto_networkx:
graph = resultset.get_graph()
resultset.draw()
return graph
else:
return resultset # returning only last result, intentionally
else:
return 'Connected: %s' % conn.name
def execute_graph(self, line, cell='', local_ns={}):
"""Runs Cypher statement against a Neo4j graph database, specified by
a connect string.
If no database connection has been established, first word
should be a connection string, or the user@host name
of an established connection. Otherwise, http://localhost:7474/db/data
will be assumed.
Examples::
%%cyphergraph https://me:mypw@myhost:7474/db/data
START n=node(*) RETURN n
%%cyphergraph me@myhost
START n=node(*) RETURN n
%%cyphergraph
START n=node(*) RETURN n
Connect string syntax examples:
http://localhost:7474/db/data
https://me:mypw@localhost:7474/db/data
"""
# save globals and locals so they can be referenced in bind vars
user_ns = self.shell.user_ns
user_ns.update(local_ns)
parsed = parse("""{0}\n{1}""".format(line, cell), self)
conn = Connection.get(parsed['as'] or parsed['uri'])
first_word = parsed['cypher'].split(None, 1)[:1]
try:
# pass all attributes except auto_html manually to new config :-(
conf = DefaultConfigurable(auto_html=True,
auto_limit=self.auto_limit, style=self.style, short_errors=self.short_errors,
data_contents=self.data_contents, display_limit=self.display_limit,
auto_networkx=self.auto_networkx, auto_pandas=self.auto_pandas, rest=self.rest,
feedback=self.feedback, uri=self.uri)
result = run(parsed['cypher'], user_ns, conf, conn)
return result
except StatusException as e:
if self.short_errors:
print(e)
else:
raise
def execute(self, line, cell='', local_ns={}):
"""Runs Cypher statement against a Neo4j graph database, specified by
a connect string.
If no database connection has been established, first word
should be a connection string, or the user@host name
of an established connection. Otherwise, http://localhost:7474/db/data
will be assumed.
Examples::
%%cypher https://me:mypw@myhost:7474/db/data
START n=node(*) RETURN n
%%cypher me@myhost
START n=node(*) RETURN n
%%cypher
START n=node(*) RETURN n
Connect string syntax examples:
http://localhost:7474/db/data
https://me:mypw@localhost:7474/db/data
"""
# save globals and locals so they can be referenced in bind vars
user_ns = self.shell.user_ns
user_ns.update(local_ns)
parsed = parse("""{0}\n{1}""".format(line, cell), self)
conn = Connection.get(parsed['as'] or parsed['uri'], parsed['as'])
first_word = parsed['cypher'].split(None, 1)[:1]
if first_word and first_word[0].lower() == 'persist':
return self._persist_dataframe(parsed['cypher'], conn, user_ns)
try:
result = run(parsed['cypher'], user_ns, self, conn)
return result
except StatusException as e:
if self.short_errors:
print(e)
else:
raise
def execute(self, line, cell='', local_ns={}):
"""Runs Cypher statement against a Neo4j graph database, specified by
a connect string.
If no database connection has been established, first word
should be a connection string, or the user@host name
of an established connection. Otherwise, http://localhost:7474/db/data
will be assumed.
Examples::
%%cypher https://me:mypw@myhost:7474/db/data
START n=node(*) RETURN n
%%cypher me@myhost
START n=node(*) RETURN n
%%cypher
START n=node(*) RETURN n
Connect string syntax examples:
http://localhost:7474/db/data
https://me:mypw@localhost:7474/db/data
"""
# save globals and locals so they can be referenced in bind vars
user_ns = self.shell.user_ns
user_ns.update(local_ns)
parsed = parse("""{0}\n{1}""".format(line, cell), self)
conn = Connection.get(parsed['as'] or parsed['uri'])
first_word = parsed['cypher'].split(None, 1)[:1]
if first_word and first_word[0].lower() == 'persist':
return self._persist_dataframe(parsed['cypher'], conn, user_ns)
try:
result = run(parsed['cypher'], user_ns, self, conn)
return result
except StatusException as e:
if self.short_errors:
print(e)
else:
raise
