entity-framework-core-5

Zero-or-one relationship in EF Core

て烟熏妆下的殇ゞ 提交于 2021-02-11 14:21:49
问题 I have a somewhat special scenario of a Zero-or-one relationship in EF Core which cannot be easily modeled by the default (as described, e.g.,in EF Core One to One or Zero Relationship). I've got multiple entities with a 0-1 relationship to a "Match" entity. Multiple instances can reference the same "Match" entity (which is why I can't put the foreign key into the "Match" table, which seems to be the recommended way of modeling a 0-1 relationship). How to define the relationship from one of

Zero-or-one relationship in EF Core

混江龙づ霸主 提交于 2021-02-11 14:20:09
问题 I have a somewhat special scenario of a Zero-or-one relationship in EF Core which cannot be easily modeled by the default (as described, e.g.,in EF Core One to One or Zero Relationship). I've got multiple entities with a 0-1 relationship to a "Match" entity. Multiple instances can reference the same "Match" entity (which is why I can't put the foreign key into the "Match" table, which seems to be the recommended way of modeling a 0-1 relationship). How to define the relationship from one of

Entity Framework Core Many to Many change navigation property names

亡梦爱人 提交于 2020-12-26 10:23:21
问题 I have a table called "LogBookSystemUsers" and I want to setup many to many functionality in EF Core 5. I almost have it working but the problem is my ID columns are named SystemUserId and LogBookId but when EF does the join it tries to use SystemUserID and LogBookID . This is my current configuration code: modelBuilder.Entity<SystemUser>() .HasMany(x => x.LogBooks) .WithMany(x => x.SystemUsers) .UsingEntity(x => { x.ToTable("LogBookSystemUsers", "LogBooks"); }); I tried this: modelBuilder

Entity Framework Core Many to Many change navigation property names

若如初见. 提交于 2020-12-26 10:22:48
问题 I have a table called "LogBookSystemUsers" and I want to setup many to many functionality in EF Core 5. I almost have it working but the problem is my ID columns are named SystemUserId and LogBookId but when EF does the join it tries to use SystemUserID and LogBookID . This is my current configuration code: modelBuilder.Entity<SystemUser>() .HasMany(x => x.LogBooks) .WithMany(x => x.SystemUsers) .UsingEntity(x => { x.ToTable("LogBookSystemUsers", "LogBooks"); }); I tried this: modelBuilder