ACF acf/load_field_settings filter

The ACF acf/load_field_settings filter allows you to modify the settings of a field before it is loaded in the ACF admin interface. This can be useful when you want to customize the behavior or appearance of a specific field.

Here’s an example of how you can use the acf/load_field_settings filter to modify the settings of a text field:

function wpsnippets_modify_text_field_settings($field) {
    // Modify the field settings here
    $field['default_value'] = 'Custom Default Value';

    return $field;
}
add_filter('acf/load_field_settings', 'wpsnippets_modify_text_field_settings');

In this example, we define a custom function wpsnippets_modify_text_field_settings that accepts the field settings as a parameter. Inside the function, we modify the default_value setting of the field to be ‘Custom Default Value’. Finally, we return the modified field settings.

By adding this code to your theme’s functions.php file or a custom plugin, the default_value of all text fields in the ACF admin interface will be set to ‘Custom Default Value’. You can customize the field settings according to your specific needs.

This filter can be useful in scenarios where you want to set default values for fields, modify field options, or add custom behavior to specific fields in the ACF admin interface.

Examples

Example 1: Modify ACF field settings based on user role

This example demonstrates how to use the acf/load_field_settings filter to modify the Advanced Custom Fields (ACF) field settings based on the user’s role. By hooking into this filter, you can dynamically adjust the field settings for different user roles.

function wpsnippets_modify_field_settings( $field ) {
    if ( current_user_can( 'editor' ) ) {
        $field['required'] = true;
    }
    return $field;
}
add_filter( 'acf/load_field_settings', 'wpsnippets_modify_field_settings' );

In this code example, we define a custom function wpsnippets_modify_field_settings that takes the $field parameter. Inside the function, we check if the current user has the ‘editor’ role using the current_user_can() function. If the user has the ‘editor’ role, we set the required attribute of the field to true. Finally, we return the modified $field array.

Example 2: Disable field for specific post types

This example demonstrates how to use the acf/load_field_settings filter to disable a specific ACF field for certain post types. By utilizing this filter, you can conditionally disable fields based on the post type being edited.

function wpsnippets_disable_field_for_post_types( $field ) {
    $disabled_post_types = array( 'page', 'attachment' );

    if ( in_array( get_post_type(), $disabled_post_types ) ) {
        $field['disabled'] = true;
    }

    return $field;
}
add_filter( 'acf/load_field_settings', 'wpsnippets_disable_field_for_post_types' );

In this code example, we define the wpsnippets_disable_field_for_post_types function that takes the $field parameter. We create an array of post types that we want to disable the field for ($disabled_post_types). Inside the function, we check if the current post type is in the array using in_array(). If it is, we set the disabled attribute of the field to true. Finally, we return the modified $field array.

Example 3: Modify field settings based on field name

This example demonstrates how to use the acf/load_field_settings filter to modify ACF field settings based on the field name. By leveraging this filter, you can customize field settings for specific fields within your ACF groups.

function wpsnippets_modify_field_settings_by_name( $field ) {
    if ( $field['name'] === 'my_field' ) {
        $field['instructions'] = 'This field is required.';
    }
    return $field;
}
add_filter( 'acf/load_field_settings', 'wpsnippets_modify_field_settings_by_name' );

In this code example, we define the wpsnippets_modify_field_settings_by_name function that takes the $field parameter. Inside the function, we check if the field name is ‘my_field’ using the $field['name'] property. If it matches, we modify the instructions attribute of the field. Finally, we return the modified $field array.