<?php
if( ! class_exists('acf_field_link') ) :
class acf_field_link extends acf_field {
/*
* __construct
*
* This function will setup the field type data
*
* @type function
* @date 5/03/2014
* @since 5.0.0
*
* @param n/a
* @return n/a
*/
function initialize() {
// vars
$this->name = 'link';
$this->label = __("Link",'acf');
$this->category = 'relational';
$this->defaults = array(
'return_format' => 'array',
);
}
/*
* get_link
*
* description
*
* @type function
* @date 16/5/17
* @since 5.5.13
*
* @param $post_id (int)
* @return $post_id (int)
*/
function get_link( $value = '' ) {
// vars
$link = array(
'title' => '',
'url' => '',
'target' => ''
);
// array (ACF 5.6.0)
if( is_array($value) ) {
$link = array_merge($link, $value);
// post id (ACF < 5.6.0)
} elseif( is_numeric($value) ) {
$link['title'] = get_the_title( $value );
$link['url'] = get_permalink( $value );
// string (ACF < 5.6.0)
} elseif( is_string($value) ) {
$link['url'] = $value;
}
// return
return $link;
}
/*
* render_field()
*
* Create the HTML interface for your field
*
* @param $field - an array holding all the field's data
*
* @type action
* @since 3.6
* @date 23/01/13
*/
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'].'">'.$link['title'].'</a>');
?></textarea>*/
?>
<div <?php acf_esc_attr_e($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><?php
?><a class="acf-icon -pencil -clear acf-js-tooltip" data-name="edit" href="#" title="<?php _e('Edit', 'acf'); ?>"></a><?php
?><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 ) {
// return_format
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;
}
}
// initialize
acf_register_field_type( 'acf_field_link' );
endif; // class_exists check
?>