one-to-one

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nested attributes with one-to-one relationship

I\'m sitting here now for 8 hours to figure out how that works: I\'m trying to modify the example in http://asciicasts.com/episodes/196-nested-model-form-part-1 into a one-to-one relationship.[详细]

2023-03-29 16:32 分类：问答
One-to-one Relationship Question - Rails

I have a one-to-one relationship between a User and a Partner.In my User model, I have the following:[详细]

2023-03-25 13:23 分类：问答
Doctrine optional OneToOne mapping

I\'m trying to create a optional OneToOne mapping in Doctrine. I have a table with all cities and zip codes available (this table shouldn\'t be changed), and I have a table with addresses and a mappe[详细]

2023-03-23 22:31 分类：问答
What is best way to use NHibernate to map a constrained many-to-many relationship?

I have two entities represented by two tables in the database, joined by a linking table with a unique constraint on each of the two foreign keys. (See this question for details). The linking table al[详细]

2023-03-23 21:31 分类：问答
How to select one to many relationship & one to one together using dapper

I have following classes and db schema.I am trying to query this data from database using dapper that would hydrate the full object graph.I looked at various SO question and the test but couldn\'t rea[详细]

2023-03-23 17:00 分类：问答
JPA @OneToOne with Shared ID -- Can I do this Better?

I’m working with an existing schema that I’d rather not change.The schema has a one-to-one relationship between tables Person and VitalStats, where Person has a primary key and VitalStats uses the s[详细]

2023-03-23 14:46 分类：问答
Django: "ZeroToOneField" DoesNotExist Error

I\'m trying to determine the best way to make a \"zero-to-one\" relationship between two models.For example, a model named Post can have zero or one related model instances of a Model called PostExtra[详细]

2023-03-23 13:35 分类：问答
Creating a one-to-one relation for a pre-existing record using Doctrine ORM (1.2)

Background / Application I have two database tables, supplier and address with a one-to-one relationship, as not all suppliers have an address (and this is just a simplified example from a larger app[详细]

2023-03-23 02:49 分类：问答
how to perform one-to-one relational insertion in database

I am using Mysql. And I have two tables which are one-to-one related with each other. In other words, they both h开发者_运维技巧ave a foreign key constraint referencing the primary key of the other t[详细]

2023-03-22 15:42 分类：问答
Asp.net Dynamic Data 4 One-to-One ForeignKey.ascx Returning Primary Key

I have a Dynamic Data 4 site using LinqToSql (.dbml) for 2 tables with a one-to-one relationship. One table (child) does not always have a row corresponding to the primary table.[详细]

2023-03-22 14:57 分类：问答