mapping-model

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Defining Many-to-Many Association in Entity Framework

I have th开发者_如何学Ce following tables in my edmx : Errors Id, Description, solved, officeId, siteId[详细]

2023-03-24 16:15 分类：问答
How to map parent column in EF 4.1 code first

In my project I have fol开发者_如何学运维lowing DomainModel. public class Login { public Guid Id { get; set; }[详细]

2023-03-20 14:22 分类：问答
Entity Framework - GetObjectByKey don't allow the primary key

I\'m trying to get a record using GetObjectByKey function like this: Enumerable<KeyValuePair<string, object>> entityKeyValues =[详细]

2023-03-16 12:49 分类：问答
Entity Framework - Splitting table to multiple entities WITH AN OVERLAPPING CONDITION

Is there a way to preform the following mappings (using database-first approach): Tables: (Defining tables with C#-like syntax for readability purposes only)[详细]

2023-03-01 07:07 分类：问答
Core Data - Migration question?

I am trying to do a migration I have 2 versions of model 1.xcdatamodel 2.xcdatamodel I created a mapping model from version 1 to 2[详细]

2023-02-24 06:29 分类：问答
Backing out a Core Data migration?

I have an app with a very large Core Data database.I have versioned it many times over the past year.[详细]

2023-02-19 07:02 分类：问答
Core Data Migration - Can't find mapping model for migration

I followed the guide found here: http://www.timisted.net/blog/archive/core-data-migration/ but 开发者_运维问答keep getting \"Can\'t find mapping model for migration\" when I start up the app with the[详细]

2023-02-18 09:59 分类：问答
Preventing Core Data Errors

I have created a Mac application for the app store - and now find it necessary to modify my \'model\' file for Core Data. In my experience, changing this model creates an error upon opening an old fil[详细]

2023-02-07 10:05 分类：问答
how to make an iPhone app tolerant of a CoreData schema change

I have an app that uses the CoreData APIs extensively. I\'m developing an updated version that adds a few fields to an entity. My app crashes upon load (unless if I blow away the private storage and s[详细]

2023-02-06 00:14 分类：问答
Fastest way to get a reference to the NSMigrationManager in an automatic migration?

I have a data-heavy app and I have implemented all my CoreData migration stuff using the visual mapping models in XCode and NSEntityMigrationPolicy implementations for the cleanup code.As it turns out[详细]

2023-02-05 18:46 分类：问答