def create_graph(self, name='', edge_definitions=None):
"""Create Graph"""
try:
self.graph = self.database.create_graph(name)
except exceptions.GraphCreateError as err:
if err.error_code == 1925:
msg = gph_err.get(1925).format(name, err)
raise gmap_exceptions.GraphAlreadyExist(msg)
else:
msg = gph_err.get(0).format(name, err.message)
raise gmap_exceptions.GraphException(msg)
except Exception as err:
msg = gph_err.get(0).format(name, err.message)
raise gmap_exceptions.GraphException(msg)
else:
if edge_definitions:
for edge in edge_definitions:
try:
self.graph.create_edge_definition(
name=edge.get('edge'),
from_collections=edge.get('from_collections'),
to_collections=edge.get('to_collections')
)
except Exception as err:
self.database.delete_graph(name)
msg = gph_err.get(1).format(name)
raise gmap_exceptions.GraphException(msg)
return self.graph
def create_graph(self, name='', edge_definitions=None):
"""Create Graph"""
try:
self.graph = self.database.create_graph(name)
except exceptions.GraphCreateError as err:
if err.error_code == 1925:
msg = gph_err.get(1925).format(name, err)
raise gmap_exceptions.GraphAlreadyExist(msg)
else:
msg = gph_err.get(0).format(name, err.message)
raise gmap_exceptions.GraphException(msg)
except Exception as err:
msg = gph_err.get(0).format(name, err.message)
raise gmap_exceptions.GraphException(msg)
else:
if edge_definitions:
for edge in edge_definitions:
try:
self.graph.create_edge_definition(
name=edge.get('edge'),
from_collections=edge.get('from_collections'),
to_collections=edge.get('to_collections'))
except Exception as err:
self.database.delete_graph(name)
msg = gph_err.get(1).format(name)
raise gmap_exceptions.GraphException(msg)
return self.graph
def get_graph(self, name=''):
"""Return graph"""
if self.has_graph(name):
self.graph = self.database.graph(name)
return self.graph
else:
msg = gph_err.get(1924).format(name)
raise gmap_exceptions.GraphNotExist(msg)
def get_graph(self, name=''):
"""Return graph"""
if self.has_graph(name):
self.graph = self.database.graph(name)
return self.graph
else:
msg = gph_err.get(1924).format(name)
raise gmap_exceptions.GraphNotExist(msg)
def delete_graph(self, name=''):
"""Delete Graph"""
try:
self.database.delete_graph(name)
return True
except exceptions.GraphDeleteError as err:
if err.error_code == 1924:
msg = gph_err.get(1924).format(name)
raise gmap_exceptions.GraphNotExist(msg)
else:
msg = gph_err.get(0).format(name, err.message)
raise gmap_exceptions.GraphException(msg)
except Exception as err:
msg = gph_err.get(0).format(name, err.message)
raise gmap_exceptions.GraphException(msg)
def delete_graph(self, name=''):
"""Delete Graph"""
try:
self.database.delete_graph(name)
return True
except exceptions.GraphDeleteError as err:
if err.error_code == 1924:
msg = gph_err.get(1924).format(name)
raise gmap_exceptions.GraphNotExist(msg)
else:
msg = gph_err.get(0).format(name, err.message)
raise gmap_exceptions.GraphException(msg)
except Exception as err:
msg = gph_err.get(0).format(name, err.message)
raise gmap_exceptions.GraphException(msg)