EF core 5 split table to two entities

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Im using DDD in my project and I have an entity which belong to two bounded contexts with different properties each one. Both bounded contexts add records by this entity.
How can I configure these two classes to map to same table by fluent Api?

What I have tried:

I have try that solution

entity framework core - EFCore Map 2 entities to same table - Stack Overflow[^]

but its working only if add a new record from the first bounded context. When Im trying to add from the second Im getting this error:
The value 'Id' of is unknown when attempting to save changes. This is because the property is also part of a foreign key for which the principal entity in the relationship is not known.

Posted 7-Jul-21 0:24am

Manos Kanellopoulos

Updated 10-Jul-21 1:46am

Richard Deeming

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Manos Kanellopoulos 7-Jul-21 12:37pm

Any idea plz?

[no name] 7-Jul-21 15:57pm

[Table("TheTable")]

Manos Kanellopoulos 7-Jul-21 16:03pm

Hi Gerry! If I set two classes to same table will thrown an exception it says that already a class mapping to the table

Manos Kanellopoulos 7-Jul-21 16:04pm

Its needs something to understand that those classes are mapping to the same table

[no name] 8-Jul-21 12:45pm

https://entityframeworkcore.com/knowledge-base/49986756/efcore-map-2-entities-to-same-table

https://stackoverflow.com/questions/49986756/efcore-map-2-entities-to-same-table

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#realJSOP · Answer 1 · 2021-07-10T01:46:00

Solution 1

Try using the mapped entity as a base class for two derived entities.

Posted 10-Jul-21 1:46am

#realJSOP

EF core 5 split table to two entities

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EF core 5 split table to two entities

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