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acf-data-selector-field-v4.php
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acf-data-selector-field-v4.php
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<?php
class acf_field_data_selector extends acf_field
{
/*
* __construct
*
* Set name / label needed for actions / filters
*
* @since 3.6
* @date 23/01/13
*/
function __construct() {
// vars
$this->name = 'data_selector';
$this->label = __("Data Selector",'acf');
$this->category = __("Data Selector",'acf');
$this->defaults = array(
'max' => ''
);
$this->l10n = array(
'max' => __("Maximum values reached ( {max} values )",'acf'),
'tmpl_li' => '
<li>
<a href="#" data-post_id="<%= post_id %>"><%= title %><span class="acf-button-remove"></span></a>
<input type="hidden" name="<%= name %>[]" value="<%= post_id %>" />
</li>
'
);
// do not delete!
parent::__construct();
// settings
$this->settings = array(
'path' => apply_filters('acf/helpers/get_path', __FILE__),
'dir' => apply_filters('acf/helpers/get_dir', __FILE__),
'version' => '1.0.0'
);
// extra
add_action('wp_ajax_acf/fields/data_selector/get_data', array($this, 'get_data'), 99);
add_action('wp_ajax_nopriv_acf/fields/data_selector/get_data', array($this, 'get_data'), 99);
}
/*
* input_admin_enqueue_scripts()
*
* This action is called in the admin_enqueue_scripts action on the edit screen where your field is created.
* Use this action to add css + javascript to assist your create_field() action.
*
* $info http://codex.wordpress.org/Plugin_API/Action_Reference/admin_enqueue_scripts
* @type action
* @since 3.6
* @date 23/01/13
*/
function input_admin_enqueue_scripts()
{
// Note: This function can be removed if not used
// register acf scripts
wp_register_script('acf-input-data_selector', $this->settings['dir'] . 'assets/v4/js/input.js', array('acf-input'), $this->settings['version']);
wp_register_style('acf-input-data_selector', $this->settings['dir'] . 'assets/v4/css/input.css', array('acf-input'), $this->settings['version']);
// scripts
wp_enqueue_script(array(
'acf-input-data_selector',
));
// styles
wp_enqueue_style(array(
'acf-input-data_selector',
));
}
/*
* load_field()
*
* This filter is appied to the $field after it is loaded from the database
*
* @type filter
* @since 3.6
* @date 23/01/13
*
* @param $field - the field array holding all the field options
*
* @return $field - the field array holding all the field options
*/
function load_field( $field )
{
// return
return $field;
}
/*
* get_data
*
* @description:
* @since: 3.6
* @created: 27/01/13
*/
function get_data()
{
// get data sources
$data_sources = apply_filters('acf_data_selector/data', array());
// get the data from that data source
$data = $data_sources[$_POST['data_source']]['data'];
// clean-up data array
$data = $this->cleanup_array($data);
// filter data by search
if ( $_POST['s'] ) {
foreach ( $data as $key => $value ) {
if ( stripos($value['label'], $_POST['s']) === FALSE ) {
unset($data[$key]);
}
}
}
// loop
foreach ( $data as $key => $value ) {
// right aligned info
$title = $value['label'];
// filters
$title = apply_filters('acf/fields/data_selector/result', $title, $post, $field, $the_post);
$title = apply_filters('acf/fields/data_selector/result/name=' . $field['name'] , $title, $post, $field, $the_post);
$title = apply_filters('acf/fields/data_selector/result/key=' . $field['key'], $title, $post, $field, $the_post);
// update html
$r['html'] .= '<li><a href="#" data-post_id="' . $key . '">' . $title . '<span class="acf-button-add"></span></a></li>';
}
// return JSON
echo json_encode( $r );
die();
}
/*
* create_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 create_field( $field )
{
// global
global $post;
// no row limit?
if ( !$field['max'] || $field['max'] < 1 ) {
$field['max'] = 9999;
}
$attributes = array(
'max' => $field['max'],
'field_key' => $field['key'],
'data_source' => $field['data_source']
);
// Lang
if ( defined('ICL_LANGUAGE_CODE') ) {
$attributes['lang'] = ICL_LANGUAGE_CODE;
}
?>
<div class="acf_data_selector<?php echo $class; ?>"<?php foreach( $attributes as $k => $v ): ?> data-<?php echo $k; ?>="<?php echo $v; ?>"<?php endforeach; ?>>
<!-- Hidden Blank default value -->
<input type="hidden" name="<?php echo $field['name']; ?>" value="" />
<!-- Left List -->
<div class="data_selector_left">
<table class="widefat">
<thead>
<tr>
<th>
<input class="data_selector_search" placeholder="<?php _e("Search...",'acf'); ?>" type="text" id="data_selector_<?php echo $field['name']; ?>" />
</th>
</tr>
</thead>
</table>
<ul class="bl data_selector_list">
<li class="load-more">
<div class="acf-loading"></div>
</li>
</ul>
</div>
<!-- /Left List -->
<!-- Right List -->
<div class="data_selector_right">
<ul class="bl data_selector_list">
<?php if ( $field['value'] ) : ?>
<?php foreach ( $field['value'] as $id => $label ) : ?>
<?php
// find title. Could use get_the_title, but that uses get_post(), so I think this uses less Memory
$title = $label;
// filters
$title = apply_filters('acf/fields/data_selector/result', $title, $p, $field, $post);
$title = apply_filters('acf/fields/data_selector/result/name=' . $field['name'] , $title, $p, $field, $post);
$title = apply_filters('acf/fields/data_selector/result/key=' . $field['key'], $title, $p, $field, $post);
?>
<li>
<a href="#" class="" data-post_id="<?php echo $id; ?>"><?php echo $title; ?><span class="acf-button-remove"></span></a>
<input type="hidden" name="<?php echo $field['name']; ?>[]" value="<?php echo $id; ?>" />
</li>
<?php endforeach; ?>
<?php endif; ?>
</ul>
</div>
<!-- / Right List -->
</div>
<?php
}
/*
* create_options()
*
* 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 create_options( $field )
{
// vars
$key = $field['name'];
// get data sources
$data_sources = apply_filters('acf_data_selector/data', array());
// build a list of data options
$data_options = array();
foreach ( $data_sources as $data_souce_key => $data_source ) {
$data_options[$data_souce_key] = $data_source['label'];
}
// if the data_source value isn't set, set it as null
if ( ! isset($field['data_source']) ) {
$field['data_source'] = NULL;
}
?>
<tr class="field_option field_option_<?php echo $this->name; ?>">
<td class="label">
<label><?php _e("Data Set",'acf'); ?></label>
</td>
<td>
<?php if ( ! empty($data_options) ) : ?>
<?php
do_action('acf/create_field', array(
'type' => 'select',
'name' => 'fields[' . $key . '][data_source]',
'value' => $field['data_source'],
'choices' => $data_options
));
?>
<?php else : ?>
<strong>No data sets available</strong>
<?php endif; ?>
</td>
</tr>
<tr class="field_option field_option_<?php echo $this->name; ?>">
<td class="label">
<label><?php _e("Maximum choices",'acf'); ?></label>
</td>
<td>
<?php
do_action('acf/create_field', array(
'type' => 'number',
'name' => 'fields['.$key.'][max]',
'value' => $field['max'],
));
?>
</td>
</tr>
<?php
}
/*
* format_value()
*
* This filter is appied to the $value after it is loaded from the db and before it is passed to the create_field action
*
* @type filter
* @since 3.6
* @date 23/01/13
*
* @param $value - the value which was loaded from the database
* @param $post_id - the $post_id from which the value was loaded
* @param $field - the field array holding all the field options
*
* @return $value - the modified value
*/
function format_value( $value, $post_id, $field )
{
// empty?
if( !$value )
{
return $value;
}
// Pre 3.3.3, the value is a string coma seperated
if( is_string($value) )
{
$value = explode(',', $value);
}
// empty?
if( !is_array($value) || empty($value) )
{
return $value;
}
// get data sources
$data_sources = apply_filters('acf_data_selector/data', array());
// get the data from that data source
$data = $data_sources[$field['data_source']]['data'];
// clean-up data array
$data = $this->cleanup_array($data);
$values = array();
foreach ( $value as $data_key ) {
$values[$data_key] = $data[$data_key]['label'];
}
// return value
return $values;
}
/*
* format_value_for_api()
*
* This filter is appied to the $value after it is loaded from the db and before it is passed back to the api functions such as the_field
*
* @type filter
* @since 3.6
* @date 23/01/13
*
* @param $value - the value which was loaded from the database
* @param $post_id - the $post_id from which the value was loaded
* @param $field - the field array holding all the field options
*
* @return $value - the modified value
*/
function format_value_for_api($value, $post_id, $field) {
// empty?
if ( ! $value ) {
return $value;
}
// empty?
if ( ! is_array($value) || empty($value) ) {
return $value;
}
// get data sources
$data_sources = apply_filters('acf_data_selector/data', array());
// get the data from that data source
$data = $data_sources[$field['data_source']]['data'];
$values = array();
foreach ( $value as $data_key ) {
$values[$data_key] = $data[$data_key];
}
// return value
return $values;
}
/*
* 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 ) {
return $value;
}
/*
* cleanup_array()
*
* Takes custom data and makes sure it has a label set
*
* @param $data - the data set values
*
* @return $value - the modified value
*/
function cleanup_array($data) {
foreach ( $data as $key => $value ) {
// if the data item is not an array, use the value as the array label
if ( ! is_array($value) ) {
$data[$key] = array('label' => $value);
}
}
return $data;
}
}
new acf_field_data_selector();
?>