DDC-3863: Wrong return if value is null in JsonArrayType #4729

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admin · 2026-01-22T14:48:27+01:00

admin commented

2026-01-22 14:48:27 +01:00

Originally created by @doctrinebot on GitHub (Aug 3, 2015).

Originally assigned to: @beberlei on GitHub.

Jira issue originally created by user talus:

On the JsonArray type, on the conversion from a database value to a php value, if the value is null or empty, it returns an empty array.

The thing is, I have a inherited field (or more specifically two fields with the same name, which is not in the parent entity (as another subentity doesn't need such a field).

Basically, it tries to load the field which appears two times (for a field name called field, it has two columns in the data array : field*1 and field_2). The value for a entity has one of these null, respectively the field_1 for the first subentity, and field*2 for the second subentity.

The JsonArrayType then recognizes the field named field in the data, and returns an empty array if the value is null... Then doctrine stores in into cache, but when it comes to the second field (field_2), as it sees he has a cache for field, it ignores the value as the value is not null.

So basically, the problems lies within the JsonArrayType, which should return null if the value is null ? But I'm not quite sure if this is BC...

I was not sure if this belonged to the orm or the dbal.

Originally created by @doctrinebot on GitHub (Aug 3, 2015). Originally assigned to: @beberlei on GitHub. Jira issue originally created by user talus: On the JsonArray type, on the conversion from a database value to a php value, if the value is null or empty, it returns an empty array. The thing is, I have a inherited field (or more specifically two fields with the same name, which is not in the parent entity (as another subentity doesn't need such a field). Basically, it tries to load the field which appears two times (for a field name called `field`, it has two columns in the `data` array : `field*1` and `field_2`). The value for a entity has one of these null, respectively the `field_1` for the first subentity, and `field*2` for the second subentity. The JsonArrayType then recognizes the field named `field` in the data, and returns an empty array if the value is null... Then doctrine stores in into cache, but when it comes to the second field (`field_2`), as it sees he has a cache for `field`, it ignores the value as the value is not null. So basically, the problems lies within the JsonArrayType, which should return null if the value is null ? But I'm not quite sure if this is BC... I was not sure if this belonged to the orm or the dbal.

admin added the Bug label 2026-01-22 14:48:27 +01:00

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Reference: doctrine/archived-orm#4729