Deprecation: #106821 - Workspace aware inline child tables are enforced 

See forge#106821

Description 

TCA tables that are used as inline child tables in a standard foreign_table relationship must be declared as workspace aware if their parent table is workspace aware.

Impact 

The TYPO3 Core may automatically add versioningWS = true to the ctrl section of inline child tables. In this case, a deprecation-level log entry will be issued, indicating that the TCA definition should be updated accordingly.

This TCA definition should be added even if the workspace system extension is not loaded. The database schema analyzer will then automatically add the required workspace-related database columns.

Affected installations 

TYPO3 instances with extensions that define inline relations where the parent table is workspace aware but the child table is not are affected.

A typical scenario involves inline child tables attached to the tt_content table.

Migration 

An automatic TCA migration scans TCA configurations for this scenario and adds versioningWS = true to affected child tables. Developers should add this declaration manually to their TCA to satisfy the migration and suppress deprecation log messages.

'ctrl' => [
    'versioningWS' => true,
],
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Note that the automatic migration does not detect children attached to inline fields within type => 'flex' (flex form) fields. Developers and integrators should still explicitly declare such child tables as workspace aware.

In general, the combination of "parent is workspace aware" and "child is not workspace aware" is not supported by the TYPO3 Core in inline foreign_table setups—regardless of whether the parent field is a database column or part of a flex form.