mode

mode

mode
Path

$GLOBALS['TCA'][$table]['columns'][$field]['config']

type

string (keywords)

Scope

Display

Types

input

Possible keywords: useOrOverridePlaceholder

This property is related to the placeholder property. When defined, a checkbox will appear above the field. If that box is checked, the field can be used to enter whatever the user wants as usual. If the box is not checked, the field becomes read-only and the value saved to the database will be NULL.

For example, this is used for the sys_file_metadata TCA configuration used for file references, so that fields like title will fall back to the default title of a file instead of using an empty value defined for the reference.

Examples

An input field with placeholder that can be overridden

EXT:styleguide/Configuration/TCA/tx_styleguide_elements_basic.php 
[
    'columns' => [
        'input_28' => [
            'exclude' => 1,
            'label' => 'input_28',
            'description' => 'placeholder=__row|input_26 mode=useOrOverridePlaceholder eval=null default=null',
            'config' => [
                'type' => 'input',
                'placeholder' => '__row|input_26',
                'eval' => 'null',
                'default' => null,
                'mode' => 'useOrOverridePlaceholder',
            ],
        ],
    ],
]
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A text field with placeholder that can be overridden

EXT:styleguide/Configuration/TCA/tx_styleguide_elements_basic.php 
[
    'columns' => [
        'text_14' => [
            'exclude' => 1,
            'label' => 'text_14',
            'description' => 'placeholder=__row|text_12, mode=useOrOverridePlaceholder, eval=null',
            'config' => [
                'type' => 'text',
                'placeholder' => '__row|text_12',
                'eval' => 'null',
                'mode' => 'useOrOverridePlaceholder',
            ],
        ],
    ],
]
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