I have two models, User and Event. Every event has a unique admin who is a User role. When Im trying to access @event.admin i get my admin user but if Im trying to acc开发者_如何学Cess @user.administe
Let\'s say I have two entity objects \"table\" and \"chicken.\" Now let\'s say, I have a \"wing\" object, and I want that wing to have a 0..1-1 relationship with table and chicken. In otherwords, I w
I\'m trying to use the foreign key association approach to achieve a one-to-one association in EF. In my case there\'s an association between a User and a Team, and I need a navigation property in eac
Right now I have a model where users can login and create jobs. Jobs belongs_to :users and user has_many :jobs. So far so good. But now I want to set up a one-to-one relationship where each JOB can ha
I have the following simple design: (source: kawoolutions.com) That\'s basically a workaround for non-disjoint inheritance which JPA doesn\'t support. Persons can exist by their own, but there can op
I\'m working in a project using Hibernate +JPA. I have this Entity class: @Entity public class CafeUser implements Serializable {
I have a car table and driver table. Each car can be driven by some drivers but one of them must be active driver and each dri开发者_StackOverflowver can drive one and only one car. I need to query fo
My entities are: @Entity public class ReportSnapshot extends LightEntity { @Id @GeneratedValue private long id;
I have been struggling with this issue for a while now, and can\'t seem to find a solution anywhere. Maybe I have misunderstood something, but would really appreciate it if someone could clear up thin
I\'m having some problems with NHibernate one to one mapping.I\'m using Fluent Nhibernate, and basd my mappings on this blog post:http://brunoreis.com/tech/fluent-nhibernate-hasone-how-implement-one-t
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