Hi Hugo, welcome to WO!
Am 12.07.2012 um 20:46 schrieb Hugo Cambero: > Hi Everybody > > My name is Hugo, I'm from Mexico. I have been developing using WebObjects and > Wonder Frameworks, I'm newbie in this topic. > > Well, I have a problem, I hope you can help me. I'm developing a test > application, I want to learn about EOF. > > I have 2 entities, that I created using EOModel. The first entity is: User, > the second is Role. The relationship between the entities is: One user > can have many Roles. > > Well, I tried to insert a row using the next code: > > EOEditingContext ec = ERXEC.newEditingContext(); > Role userRole = Role.fetchRole( ec, Role.NAME.eq("user") > ); //Get the correct Role to the new user > > User newUser = new User(); don't create EOs that way, use ERXEOControlUtilities.createAndInsertObject(ec, User.class); > newUser.setName( name.toLowerCase() ); > newUser.setPaternalName( paternalName.toLowerCase() ); > newUser.setMaternalName( maternalName.toLowerCase() ); > newUser.setBirthday( new NSTimestamp() ); > newUser.setUsername( username ); > newUser.setPassword( password ); > > newUser.setRole( userRole ); //Set the > role to the user you said that User <-->> Role but setRole() would point to a to-one relationship. A to-many relationship should give you user.addToRoles(role); user.removeFromRoles(role); so there seems to be a problem with your model or with your java classes. > > ec.insertObject( newUser ); //Insert > object to the EOEditingContext > ec.saveChanges(); //Commit > to the DataBase > > But, the server has the next error: > > java.lang.RuntimeException: You crossed editing context boundaries attempting > to set the 'role' relationship of <your.app.model.User pk:"null"> (which is > not in an editing context) to <your.app.model.Role pk:"2"> (in EC > er.extensions.eof.ERXEC@762a5241). > > I understand that the primary key of the user is null, because it's a new > user and I want to insert it to the data base. > > What is the correct way to insert row, when it have a relationship between > the entities? > > Thanks for you time
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