acf_field_link::render_field │ public │ ACF 3.6

Create the HTML interface for your field

Method of the class: acf_field_link{}

No Hooks.

Returns

null. Nothing (null).

Usage

$acf_field_link = new acf_field_link();
$acf_field_link->render_field( $field );

$field(required)

.

Changelog

acf_field_link::render_field() acf field link::render field code ^{ACF 6.0.4}

<?php
function render_field( $field ) {

	// vars
	$div = array(
		'id'    => $field['id'],
		'class' => $field['class'] . ' acf-link',
	);

	// render scripts/styles
	acf_enqueue_uploader();

	// get link
	$link = $this->get_link( $field['value'] );

	// classes
	if ( $link['url'] ) {
		$div['class'] .= ' -value';
	}

	if ( $link['target'] === '_blank' ) {
		$div['class'] .= ' -external';
	}

	/*
	<textarea id="<?php echo esc_attr($field['id']); ?>-textarea"><?php
	echo esc_textarea('<a href="'.$link['url'].'" target="'.$link['target'].'">'.$link['title'].'</a>');
	?></textarea>*/
	?>
<div <?php echo acf_esc_attrs( $div ); ?>>
	
	<div class="acf-hidden">
<a class="link-node" href="<?php echo esc_url( $link['url'] ); ?>" target="<?php echo esc_attr( $link['target'] ); ?>"><?php echo esc_html( $link['title'] ); ?></a>
	<?php foreach ( $link as $k => $v ) : ?>
		<?php
		acf_hidden_input(
			array(
				'class' => "input-$k",
				'name'  => $field['name'] . "[$k]",
				'value' => $v,
			)
		);
		?>
<?php endforeach; ?>
	</div>
	
	<a href="#" class="button" data-name="add" target=""><?php _e( 'Select Link', 'acf' ); ?></a>
	
	<div class="link-wrap">
<span class="link-title"><?php echo esc_html( $link['title'] ); ?></span>
<a class="link-url" href="<?php echo esc_url( $link['url'] ); ?>" target="_blank"><?php echo esc_html( $link['url'] ); ?></a>
<i class="acf-icon -link-ext acf-js-tooltip" title="<?php _e( 'Opens in a new window/tab', 'acf' ); ?>"></i><a class="acf-icon -pencil -clear acf-js-tooltip" data-name="edit" href="#" title="<?php _e( 'Edit', 'acf' ); ?>"></a><a class="acf-icon -cancel -clear acf-js-tooltip" data-name="remove" href="#" title="<?php _e( 'Remove', 'acf' ); ?>"></a>
	</div>
	
</div>
	<?php

}


/*
*  render_field_settings()
*
*  Create extra options for your field. This is rendered when editing a field.
*  The value of $field['name'] can be used (like bellow) to save extra data to the $field
*
*  @type    action
*  @since   3.6
*  @date    23/01/13
*
*  @param   $field  - an array holding all the field's data
*/
function render_field_settings( $field ) {
	acf_render_field_setting(
		$field,
		array(
			'label'        => __( 'Return Value', 'acf' ),
			'instructions' => __( 'Specify the returned value on front end', 'acf' ),
			'type'         => 'radio',
			'name'         => 'return_format',
			'layout'       => 'horizontal',
			'choices'      => array(
				'array' => __( 'Link Array', 'acf' ),
				'url'   => __( 'Link URL', 'acf' ),
			),
		)
	);

}

/*
*  format_value()
*
*  This filter is appied to the $value after it is loaded from the db and before it is returned to the template
*
*  @type    filter
*  @since   3.6
*  @date    23/01/13
*
*  @param   $value (mixed) the value which was loaded from the database
*  @param   $post_id (mixed) the $post_id from which the value was loaded
*  @param   $field (array) the field array holding all the field options
*
*  @return  $value (mixed) the modified value
*/

function format_value( $value, $post_id, $field ) {

	// bail early if no value
	if ( empty( $value ) ) {
		return $value;
	}

	// get link
	$link = $this->get_link( $value );

	// format value
	if ( $field['return_format'] == 'url' ) {

		return $link['url'];

	}

	// return link
	return $link;

}


/*
*  validate_value
*
*  description
*
*  @type    function
*  @date    11/02/2014
*  @since   5.0.0
*
*  @param   $post_id (int)
*  @return  $post_id (int)
*/

function validate_value( $valid, $value, $field, $input ) {

	// bail early if not required
	if ( ! $field['required'] ) {
		return $valid;
	}

	// URL is required
	if ( empty( $value ) || empty( $value['url'] ) ) {

		return false;

	}

	// return
	return $valid;

}


/*
*  update_value()
*
*  This filter is appied to the $value before it is updated in the db
*
*  @type    filter
*  @since   3.6
*  @date    23/01/13
*
*  @param   $value - the value which will be saved in the database
*  @param   $post_id - the $post_id of which the value will be saved
*  @param   $field - the field array holding all the field options
*
*  @return  $value - the modified value
*/

function update_value( $value, $post_id, $field ) {

	// Check if value is an empty array and convert to empty string.
	if ( empty( $value ) || empty( $value['url'] ) ) {
		$value = '';
	}

	// return
	return $value;
}

/**
 * Return the schema array for the REST API.
 *
 * @param array $field
 * @return array
 */
public function get_rest_schema( array $field ) {
	return array(
		'type'       => array( 'object', 'null' ),
		'required'   => ! empty( $field['required'] ),
		'properties' => array(
			'title'  => array(
				'type' => 'string',
			),
			'url'    => array(
				'type'     => 'string',
				'required' => true,
				'format'   => 'uri',
			),
			'target' => array(
				'type' => 'string',
			),
		),
	);
}
	}