Cloning fields (Repeatable fields)

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The clone feature of the Meta Box plugin allows us to create multiple inputs from a text, textarea, select, … fields without declaring many fields in the code.

Making a field cloneable (repeatable)

To make a field cloneable (repeatable), just add 'clone' => true to field’s parameter. After doing that, you’ll see a new + (Add Clone) button below field input:

Clicking on that button will duplicate field input:

You can notice that there are new buttons - (Remove Clone) which allow you to remove clones.

Clone settings

Name	Description
clone	Make field cloneable? true or false (default). Optional.
max_clone	Limit the number of clones. Integer. Must be greater than 2. Optional.
add_button	The text for Add more clone button. Optional. Default “+ Add more”.
clone_default	Clone the default value of fields? true or false (default).
sort_clone	Allow to drag-and-drop sort clones. true or false (default). See the following screenshot.
clone_as_multiple	Whether to store cloned values in multiple rows in the database? See this post for examples.

Default values

When making a field cloneable, its data is an array of clone values. So, the std parameter (default value) should represents this structure, e.g. array of clone values.

For example:

add_filter( 'rwmb_meta_boxes', function( $meta_boxes ) {
	$meta_boxes[] = [
		'title' => 'Test Meta Box',
		'fields' => [
			[
				'type'  => 'text',
				'id'    => 'name',
				'name'  => 'Name',
				'clone' => true,
				'std'   => [
					'John',
					'Marry',
				],
			],
		],
	];
	return $meta_boxes;
} );

Result:

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