TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:09 +02:00
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+.. include:: /Includes.rst.txt
+
+.. _feature-92861:
+
+============================================
+Feature: #92861 - Introduce TCA option "min"
+============================================
+
+See :issue:`92861`
+
+Description
+===========
+
+The new TCA option :php:`min` allows to define a minimum number of characters
+for fields of type :php:`input` and :php:`text`. This option simply adds a
+:html:`minlength` attribute to the input field. If at least one character is
+typed in and the number of characters is less than :php:`min`, the FormEngine
+marks the field as invalid, preventing the user to save the element.
+
+When using :php:`min` in combination with :php:`max`, one has to make sure, the
+:php:`min` value is less than or equal :php:`max`. Otherwise the option is
+ignored.
+
+Empty fields are not validated. If one needs to have non-empty values, it is
+recommended to use :php:`required => true` in combination with :php:`min`.
+
+.. note::
+
+   This option does not work for text fields, if RTE is enabled.
+
+Impact
+======
+
+Integrators and developers are now able to define a minimum number of characters
+a simple text or textarea field should have. Editors are forced to provide the
+specified minimum amount of characters. An alert badge, similar to the one of
+the max value, will show, how many characters are missing.
+
+.. index:: Backend, TCA, ext:backend