[PR #10169] Discriminator column generated value #12148

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admin · 2026-01-22T16:13:04+01:00

admin commented

2026-01-22 16:13:04 +01:00

Original Pull Request: https://github.com/doctrine/orm/pull/10169

State: closed
Merged: No

Situation:

We have a Table which have a discriminator column with a generated value.

Expected:
If we persist a new Record of the mapped Entity, the Insert should not write the discriminator value because it is auto generated.

ISSUE:
The Insert tries to insert the default value of the entity. This will fail because the value can not be inserted if it is a generated column.

Solution:
This MR allows the dev to use generated Column as a discriminator column. If a new Entity should be persisted and the discriminator column has the generated Value set, the Insert will ignore the Value of the mapped column.

I need some help to write the correct Tests.
Please can you tell me if the solution is done in the right way?

**Original Pull Request:** https://github.com/doctrine/orm/pull/10169 **State:** closed **Merged:** No --- Situation: We have a Table which have a discriminator column with a generated value. Expected: If we persist a new Record of the mapped Entity, the Insert should not write the discriminator value because it is auto generated. ISSUE: The Insert tries to insert the default value of the entity. This will fail because the value can not be inserted if it is a generated column. Solution: This MR allows the dev to use generated Column as a discriminator column. If a new Entity should be persisted and the discriminator column has the generated Value set, the Insert will ignore the Value of the mapped column. --------------------------------------- I need some help to write the correct Tests. Please can you tell me if the solution is done in the right way?

admin added the pull-request label 2026-01-22 16:13:04 +01:00

admin referenced this issue

2026-01-22 16:17:22 +01:00

[PR #12148] [MERGED] docs: generation strategies: differences between DBAL 3 and 4 #13521

admin referenced this issue

2026-01-22 16:17:22 +01:00

[PR #12148] docs: generation strategies: differences between DBAL 3 and 4 #13525

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