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nullable is still missing in the docs #975

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nullable is still missing in the docs #975

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c2be709
add config property nullable
franzholz Mar 15, 2024
fd9feae
add config property nullable
franzholz Mar 15, 2024
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1 change: 1 addition & 0 deletions Documentation/ColumnsConfig/CommonProperties/Index.rst
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Expand Up @@ -21,6 +21,7 @@ Common properties
Mm
Mode
Multiple
Nullable
Placeholder
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Required
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25 changes: 25 additions & 0 deletions Documentation/ColumnsConfig/CommonProperties/Nullable.rst
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@@ -0,0 +1,25 @@
.. include:: /Includes.rst.txt
.. _tca_property_nullable:

========
nullable
========

.. versionadded:: 12.0
This option should be used instead of an `eval` property with the
deprecated keyword `null`.

.. confval:: nullable

:Path: $GLOBALS['TCA'][$table]['columns'][$field]['config']
:type: boolean
:Scope: Display / Proc.
:Default: false
:Types:
:ref:`input <columns-input>`,
:ref:`text <columns-text>`

If set to true a null value is possible in the field. The
form can be saved even if no entries have been made.
The database field must not forbid the :sql:`NULL` value.

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