hibernate - Play! JPA @ManyToMany bug -

-


hibernate - Play! JPA @ManyToMany bug -

i have 3 entities: user, team, , teaminvite. each user has 1 team. each user can invite other users team creating teaminvite. when teaminvite accepted, each user's *team* updated. teaminvites not impact users, teams.

@entity public class team extends model { @onetoone public user user; @manytomany(cascade=cascadetype.all) //i've tried cascadetype.persist public list<user> team = new arraylist<user>(); } @entity public class teaminvite extends model { @manytoone public user inviter; @manytoone public user invitee; public void fulfill() { team team = team.foruser(inviter); team.team.add(invitee); team.save(); //error gets thrown here team = team.foruser(invitee); team.team.add(inviter); team.save(); delete(); } }

when teaminvite.fulfill() gets called, next error:

persistenceexception occured : org.hibernate.exception.sqlgrammarexception: not insert collection: [models.team.team#2] play.exceptions.javaexecutionexception: org.hibernate.exception.sqlgrammarexception: not insert collection: [models.team.team#2] @ play.mvc.actioninvoker.invoke(actioninvoker.java:231) @ invocation.http request(play!) caused by: javax.persistence.persistenceexception: org.hibernate.exception.sqlgrammarexception: not insert collection: [models.team.team#2] @ org.hibernate.ejb.abstractentitymanagerimpl.convert(abstractentitymanagerimpl.java:1214) ... caused by: org.hibernate.exception.sqlgrammarexception: not insert collection: [models.team.team#2] @ org.hibernate.exception.sqlstateconverter.convert(sqlstateconverter.java:92) @ org.hibernate.exception.jdbcexceptionhelper.convert(jdbcexceptionhelper.java:66) @ org.hibernate.persister.collection.abstractcollectionpersister.recreate(abstractcollectionpersister.java:1243) @ org.hibernate.action.collectionupdateaction.execute(collectionupdateaction.java:81) ... caused by: org.h2.jdbc.jdbcsqlexception: duplicate column name "team_id"; sql statement: insert team_dp_user (team_id, team_id) values (?, ?) [42121-149] @ org.h2.message.dbexception.getjdbcsqlexception(dbexception.java:327) @ org.h2.message.dbexception.get(dbexception.java:167) ...

i copied annotation construction yabe demo (posts have set of tags). know i'm doing wrong?

i guess inverse side of team.team relationship named user.team well. if so, have collision between columns names in bring together table, because default form propertyname + "_id".

so, need alter 1 of property names, or override default column names @jointable.

hibernate jpa playframework

Comments

Post a Comment

Popular posts from this blog

How do I check if an insert was successful with MySQLdb in Python? -

-
How do I check if an insert was successful with MySQLdb in Python? - i have code: cursor = conn.cursor() cursor.execute(("insert new_files (videos_id, filename, " "is_processing) values (%s,%s,1)"), (id, filename)) logging.warn("%d", cursor.rowcount) if (cursor.rowcount == 1): logging.info("inserted values %d, %s", id, filename) else: logging.warn("failed insert values %d, %s", id, filename) cursor.close() fun is, cursor.rowcount always one, though updated database create videos_id unique key. is, insert fails because in tests same videos_id going appear (and when check database, nil inserted). whatever reason, rowcount 1 - logging.warn have spits out rowcount of 1. so, question: can utilize rowcount work out if insert went fine? if so, (presumably) doing wrong? otherwise, how check if insert went fine? your code not commit after modifications (your modifications rolled back). should...
Read more

delphi - blogger via idHTTP : error 400 bad request -

-
delphi - blogger via idHTTP : error 400 bad request - i'm trying post blogger using idhttp component, however, i'm getting "http/1.0 400 bad request" error. procedure tform1.button1click(sender: tobject); var request,response,req : tstringlist; auth,blogid : string; begin blogid := '00000000000000000000000'; request := tstringlist.create; response := tstringlist.create; req := tstringlist.create; idhttp1.request.connection := 'keep-alive'; idhttp1.request.contenttype := 'application/x-www-form-urlencoded'; idssliohandlersocket1.ssloptions.method := sslvsslv23; request.clear(); request.values['accounttype'] := 'google'; request.values['email'] := 'xxx@gmail.com'; request.values['passwd'] := 'yyy'; request.values['service'] := 'blogger'; response.text :=idhttp1.post('https://www.google.com/accounts/clientlogin',request); auth := resp...
Read more

postgresql - ERROR: operator is not unique: unknown + unknown -

-
postgresql - ERROR: operator is not unique: unknown + unknown - i have postgis database , have compute new values rows in new column. these values should average of values of several columns. query: insert bdps (da_m) values (avg('da_1'+'da_2'+'da_3'+'da_4'+'da_5'+'da_6'+'da_7')); in query bdps database, da_m new column , da_1 da_7 existing columns have double precision type. da_m created using alter table bdps add together column da_m double precision; i next error: error: operator not unique: unknown + unknown line 2: values (avg('da_1'+'da_2'+'da_3'+'da_4'+'da_5'+'da_6'+'da_7... ^ hint: not take best candidate operator. might need add together explicit type casts. ********** error ********** error: operator not unique: unknown + unknown sql state: 42725 hint: not take best candidate operator. might need add togethe...
Read more