Dump! All is really stopped without correct working of this... QQ
понедельник, 19 мая 2014 г., 21:48:43 UTC+4 пользователь Александр Богданов написал: > > Sure it's local. > > look what happen: > > 1. graph before query: > http://i.gyazo.com/85dfbc3152117cd50334085b9b9254b5.png > 2. running example script: > http://i.gyazo.com/03427e0161a3168cbc62915ab1d5ffb9.png > 3. graph after query (new node selected. can see that it is not correct): > http://i.gyazo.com/84c62a9a39eca3e7d3dec3fe5dd623ff.png > > after several minutes "gray" node disappear > > понедельник, 19 мая 2014 г., 21:01:42 UTC+4 пользователь Nigel Small > написал: >> >> Bear in mind that the identifier 'n' is local to that query only and will >> not automagically find the node called 'n' in the previous create >> statement. You will need to match by ID or some other indexed criteria. >> On 19 May 2014 17:10, "Александр Богданов" <[email protected]> wrote: >> >>> I tried with RETURN. It returns Node. Correct node. But no node in >>> database. >>> Interesting fact. When I trying to find this node using browser *MATCH >>> n WHERE ID(n)=11880* (id from return) it finds one node. But node is >>> without any property or label and colored lightgrey. But no such node in >>> answer on *MATCH n RETURN n. *And after restarting Neo4j even looking >>> with ID unsuccessful. >>> >>> понедельник, 19 мая 2014 г., 19:55:15 UTC+4 пользователь Nigel Small >>> написал: >>>> >>>> You won't see any return values from your Cypher unless you include a >>>> "RETURN n" clause at the end of your statement. This is probably your >>>> problem here. >>>> >>>> On a side note, I'd strongly advise again that you do not use % >>>> substitution and use Cypher parameters instead. You will hit problems with >>>> unescaped characters at some point otherwise. >>>> >>>> Nige >>>> >>>> >>>> On 19 May 2014 16:45, Александр Богданов <[email protected]> wrote: >>>> >>>>> *query("CREATE (n:person {name:'%s', nickname:'%s', md5:'%s'})" % >>>>> (name, nickname, hashlib.md5(password).hexdigest()))* >>>>> >>>>> query() definition: >>>>> >>>>> *class CypherQuery:* >>>>> * def __init__(self, service):* >>>>> * self.session = cypher.Session(service)* >>>>> * def cypher_q(self, input, count=1):* >>>>> * if count == 1:* >>>>> * return [x.values[0] for x in self.session.execute(input)]* >>>>> * else:* >>>>> * return [x.values for x in self.session.execute(input)] >>>>> * >>>>> >>>>> *CQ = CypherQuery('http://localhost:7474 <http://localhost:7474>')* >>>>> *query = CQ.cypher_q* >>>>> >>>>> >>>>> понедельник, 19 мая 2014 г., 18:26:55 UTC+4 пользователь Nigel Small >>>>> написал: >>>>>> >>>>>> Could you post a section of Python code that includes a CREATE >>>>>> statement that fails for you? >>>>>> >>>>>> Incidentally, you would be better off using Cypher parameters (passed >>>>>> in the *execute* method) than the Python level % substitution you >>>>>> have here. This will improve both performance and reliability with "odd" >>>>>> characters. On this subject, do your properties contain ' marks? This >>>>>> could >>>>>> be breaking the query. >>>>>> >>>>>> Nige >>>>>> >>>>>> >>>>>> On 19 May 2014 15:04, Александр Богданов <[email protected]> wrote: >>>>>> >>>>>>> *CREATE (n:person {name:'%s', nickname:'%s', md5:'%s'})* >>>>>>> %s - strings >>>>>>> >>>>>>> воскресенье, 18 мая 2014 г., 15:39:45 UTC+4 пользователь Michael >>>>>>> Hunger написал: >>>>>>>> >>>>>>>> Can you show your delete and create statements? >>>>>>>> >>>>>>>> You should probably also use parameters for your id *WHERE >>>>>>>> ID(p)={id}* >>>>>>>> >>>>>>>> >>>>>>>> On Sat, May 17, 2014 at 3:31 PM, Александр Богданов < >>>>>>>> [email protected]> wrote: >>>>>>>> >>>>>>>>> Hello. >>>>>>>>> >>>>>>>>> Problems with writing to database from python script. >>>>>>>>> >>>>>>>>> Opening session: >>>>>>>>> *self.session = cypher.Session(http://localhost:7474 >>>>>>>>> <http://localhost:7474>)* >>>>>>>>> >>>>>>>>> query like this: >>>>>>>>> *self.session.execute("MATCH (p:person)-[:has_a_role]-(role) WHERE >>>>>>>>> ID(p)=%d RETURN role.role") * >>>>>>>>> working well. I receiving all information i need. >>>>>>>>> >>>>>>>>> but if i trying to create node or delete it doesnt work. >>>>>>>>> no errors >>>>>>>>> even correct node in return of execute() function if i trying to >>>>>>>>> create it. but no such node in response on query like >>>>>>>>> *self.session.execute("MATCH >>>>>>>>> (n) RETURN n")* >>>>>>>>> and in http://127.0.0.1:7474/browser/ no such node too. but if i >>>>>>>>> trying in browser - it creates. >>>>>>>>> >>>>>>>>> something with configuration? why can't i correctly use >>>>>>>>> write-queries with *py2neo.cypher.Session.execute()* ? >>>>>>>>> >>>>>>>>> PS: Sorry for my english and thank you. >>>>>>>>> >>>>>>>>> -- >>>>>>>>> You received this message because you are subscribed to the Google >>>>>>>>> Groups "Neo4j" group. >>>>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>>>> send an email to [email protected]. >>>>>>>>> >>>>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "Neo4j" group. >>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>> send an email to [email protected]. >>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>> >>>>>> >>>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Neo4j" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> >>>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Neo4j" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> For more options, visit https://groups.google.com/d/optout. >>> >> -- You received this message because you are subscribed to the Google Groups "Neo4j" group. 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