Python Node.pull方法代码示例

# 需要导入模块: from py2neo import Node [as 别名]
# 或者: from py2neo.Node import pull [as 别名]
def test_OneNode(graph):
    
    #create first node
    first = Node("Politician","Person",name="Narendra Modi",age="56")
    create_with_cp(graph,first)
    
    #add a prop to first node
    first.pull()
    print first['nodeid']
    first['important']='true'
    push_with_cp(graph,first)
    
    #add a label
    first.pull()
    first.labels.add('IndianPrimeMinister')
    first['address']='Gujarat'
    push_with_cp(graph,first)
    
    #add a label and remove a label
    first.pull()
    first.labels.add('ChiefMinister')
    first.labels.remove('IndianPrimeMinister')
    push_with_cp(graph,first)
    
    #change a prop
    first.pull()
    first['name']='Narendra Damodar Modi'
    push_with_cp(graph,first)
    
    #remove a property
    first.pull()
    first.properties['age']=None
    push_with_cp(graph,first)
    
    #delete this node
    ##TODO: remove comment
    delete_with_cp(graph,first)

# 需要导入模块: from py2neo import Node [as 别名]
# 或者: from py2neo.Node import pull [as 别名]
def test_TwoNodesOneRelation(graph):
    #create nodes
    first = Node("Politician","Person",name="Narendra Modi",age="56")
    second = Node("Party","Organization",name="BJP")
    employee = Relationship(first,"EmployeeOf",second)
    create_with_cp(graph,first,second,employee)
    
    #add props
    first.pull()
    second.pull()
    employee.pull()
    first['live']='true'
    second['live']='true'
    employee['current']='true'
    push_with_cp(graph,first,second,employee)
    
    
    #add labels, you cannot add another type or delete the previous type of a relation in neo4j
    first.pull()
    second.pull()
    employee.pull()
    first.labels.add('IndianPrimeMinister')
    first['address']='Gujarat'
    second.labels.add('PoliticalParty')
    second['address']='Delhi'
    employee['workingaddress']='CP'
    push_with_cp(graph,first,second,employee)
    
    
    #add a label and remove a label in both nodes
    first.pull()
    first.labels.add('ChiefMinister')
    first.labels.remove('IndianPrimeMinister')
    second.pull()
    second.labels.add('NationalParty')
    second.labels.remove('PoliticalParty')
    #doing no chnage to the relationship to see if nodes are updated and the relation old
    push_with_cp(graph,first,second)
    

    #change a prop
    first.pull()
    first['name']='Narendra Damodar Modi'
    second.pull()
    second['name']='Bhartiya Janta Party'
    employee.pull()
    employee['workingaddress']='Connaught Palace'
    push_with_cp(graph,first,second,employee)
    
    
    #remove a property
    first.pull()
    first.properties['live']=None
    second.pull()
    second.properties['live']=None
    employee.pull()
    employee.properties['current']=None
    push_with_cp(graph,first,second,employee)
    
    
    #delete both nodes and rels
    ##EVEN BEFORE DELETING A RELATION, you will have to pull
    ##this we can fix : TODO in delete method
    
    employee.pull()
    delete_with_cp(graph,first,second,employee)
    
    third=Node("Person",name="Abhishek Agarwal")
    create_with_cp(graph,third)

# 需要导入模块: from py2neo import Node [as 别名]
# 或者: from py2neo.Node import pull [as 别名]
def test_TwoNodes(graph):
    
    #create nodes
    first = Node("Politician","Person",name="Narendra Modi",age="56")
    second = Node("Party","Organization",name="BJP")
    create_with_cp(graph,first,second)
    
    #add props
    first.pull()
    second.pull()
    first['live']='true'
    second['live']='true'
    push_with_cp(graph,first,second)
    
    #add labels
    first.pull()
    second.pull()
    first.labels.add('IndianPrimeMinister')
    first['address']='Gujarat'
    second.labels.add('PoliticalParty')
    second['address']='Delhi'
    push_with_cp(graph,first,second)
    
    #add a label and remove a label in both nodes
    first.pull()
    first.labels.add('ChiefMinister')
    first.labels.remove('IndianPrimeMinister')
    second.pull()
    second.labels.add('NationalParty')
    second.labels.remove('PoliticalParty')
    push_with_cp(graph,first,second)
    
    #change a prop
    first.pull()
    first['name']='Narendra Damodar Modi'
    second.pull()
    second['name']='Bhartiya Janta Party'
    push_with_cp(graph,first,second)
    
    #remove a property
    first.pull()
    first.properties['live']=None
    second.properties['live']=None
    push_with_cp(graph,first,second)
    
    #delete both nodes
    delete_with_cp(graph,first,second)