def dropNode(node):
nGQL=f"""
USE blog;
DROP TAG {node.nodeType};
"""
query_resp = runGql(nGQL)
return query_resp
def DESCRIBEEDGE(edgeName):
nGQL="""
USE blog;
DESCRIBE tag MainCategory;
"""
query_resp = runGql(nGQL)
return query_resp
def getNode(node):
nGQL=f"""
USE blog;
DESCRIBE tag {node.nodeType};
"""
query_resp = runGql(nGQL)
return query_resp
def fetchNodeByName(node):
nGQL=f"""
USE blog;
FETCH PROP ON MainCategory "{node.nodeIdByHash}";
"""
query_resp= runGql(nGQL)
return query_resp
def dropNodeByName(node):
nGQL=f"""
USE blog;
DELETE VERTEX "{node.nodeIdByHash}";
"""
query_resp = runGql(nGQL)
return query_resp
def createNode(node):
propertiesString=""
for attr,attrType in node.properties.items():
propertiesString+=f"{attr} {attrType},"
nGQL=f"""
USE blog;
CREATE TAG {node.nodeType}({propertiesString});
"""
query_resp = runGql(nGQL)
return query_resp
def alertNodeAddAttr(node):
propertiesString=""
for attr,attrType in node.properties.items():
propertiesString+=f"{attr} {attrType},"
propertiesString=delLastChar(propertiesString)
nGQL=f"""
USE blog;
ALTER TAG {node.nodeType} ADD ({propertiesString});
"""
query_resp = runGql(nGQL)
return query_resp
def DESCRIBENODE(nodeType):
nGQL=f"""
USE blog;
DESCRIBE tag {nodeType};
"""
query_resp = runGql(nGQL)
print(query_resp)
for attr in query_resp['data'].rows:
attrNames = bytes.decode(attr.values[0].get_sVal())
attrType = bytes.decode(attr.values[1].get_sVal())
Typedict[attrNames]=attrType
return query_resp
def insertNodeByName(node):
attrString=""
attrValuesString=""
for attr,attrValues in node.properties.items():
attrString+=f"{attr},"
try:
attrType=Typedict[attr]
except:
DESCRIBENODE(node.nodeType)
attrType=Typedict[attr]
if attrType=="string":
attrValuesString+=f'"{attrValues}",'
else:
attrValuesString+=f'{attrValues},'
attrString,attrValuesString=map(delLastChar,[attrString,attrValuesString])
nGQL=f"""
USE blog;
INSERT VERTEX {node.nodeType}({attrString}) VALUES "{node.nodeIdByHash}":({attrValuesString});
"""
query_resp = runGql(nGQL)
return query_resp
def createGraph(dbName):
query_resp = runGql(f'CREATE SPACE {dbName}')
return query_resp
def getAllGraph():
query_resp = runGql('SHOW SPACES')
return query_resp
def deletGraph(dbName):
query_resp = runGql(f'DROP SPACE {dbName}')
return query_resp
async def runNgql(nGql):
result = runGql(nGql)
return result
