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acf_pages_by_template_v4.php
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acf_pages_by_template_v4.php
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<?php
class acf_field_acf_pages_by_template extends acf_field {
// vars
var $settings, // will hold info such as dir / path
$defaults; // will hold default field options
/*
* __construct
*
* Set name / label needed for actions / filters
*
* @since 3.6
* @date 23/01/13
*/
function __construct() {
// vars
$this->name = 'acf_pages_by_template';
$this->label = __('Page Object (by template)', 'acf');
$this->category = __("Relational",'acf'); // Basic, Content, Choice, etc
$this->defaults = array(
'page_template' => array('all'),
'multiple' => 0,
'allow_null' => 0,
);
// 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'
);
}
/*
* create_options()
*
* Create extra options for your field. This is rendered when editing a field.
* The value of $field['name'] can be used (like below) 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 ) {
// defaults?
$field = array_merge($this->defaults, $field);
// key is needed in the field names to correctly save the data
$key = $field['name'];
?>
<tr class="field_option field_option_<?php echo $this->name; ?>">
<td class="label">
<label for=""><?php _e("Page template",'acf'); ?></label>
<p class="description">Choose for which template(s) you want to get pages</p>
</td>
<td>
<?php
global $wpdb;
$page_templates = get_page_templates();
foreach( $page_templates as $page_template_name => $page_template ) {
$choices[$page_template] = $page_template_name;
}
do_action('acf/create_field', array(
'type' => 'select',
'name' => 'fields['.$key.'][page_template]',
'value' => $field['page_template'],
'choices' => $choices,
'multiple' => '1',
));
?>
</td>
</tr>
<tr class="field_option field_option_<?php echo $this->name; ?>">
<td class="label">
<label><?php _e("Allow multiple pages?",'acf'); ?></label>
<p class="description">If yes, user can select multiple pages. Otherwise, only a single one.</p>
</td>
<td>
<?php
do_action('acf/create_field', array(
'type' => 'radio',
'name' => 'fields['.$key.'][multiple]',
'value' => $field['multiple'],
'choices' => array(
'1' => __("Yes",'acf'),
'0' => __("No",'acf'),
),
'layout' => 'horizontal',
));
?>
</td>
</tr>
<?php
}
/*
* 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 ) {
$field = array_merge($this->defaults, $field);
// vars
$args = array(
'numberposts' => -1,
'post_type' => 'page',
'orderby' => 'title',
'order' => 'ASC',
'post_status' => array('publish', 'private', 'draft', 'inherit', 'future'),
'sort_column' => 'menu_order, post_title',
'sort_order' => 'ASC',
'suppress_filters' => false,
'meta_key' => '_wp_page_template',
'meta_value' => ''
);
// // ??
// // load all page templates by default
// if( !$field['meta_value'] || !is_array($field['meta_value']) || $field['meta_value'][0] == "" )
// {
// global $wpdb;
// $field['meta_value'] = get_page_templates();
// }
// build choices
if(! $field['page_template']){
// todo: load with all templates
}
$template_name_by_file = array();
$page_templates = get_page_templates();
foreach( $page_templates as $template_name => $template_file ) {
$template_name_by_file[$template_file] = $template_name;
}
foreach($field['page_template'] as $page_template ){
$template_name = $template_name_by_file[$page_template];
// get pages
$args['meta_value'] = $page_template;
$pages = get_pages($args);
if($pages) {
foreach($pages as $post) {
// find page title. Could use get_the_title, but that uses get_post(), so I think this uses less Memory
$title = '';
$ancestors = get_ancestors( $post->ID, $post->post_type );
if($ancestors) {
foreach($ancestors as $a) {
$title .= '–';
}
}
$title .= ' ' . apply_filters( 'the_title', $post->post_title, $post->ID );
// status
if($post->post_status != "publish") {
$title .= " ($post->post_status)";
}
// WPML
if( defined('ICL_LANGUAGE_CODE') ) {
$title .= ' (' . ICL_LANGUAGE_CODE . ')';
}
// add to choices
$field['choices'][$template_name][ $post->ID ] = $title;
}
// foreach( $posts as $post )
} // if($posts)
} // foreach( $field['page_template'] as $page_template )
$field['type'] = 'select';
// create Field HTML
do_action('acf/create_field', $field);
}
/*
* 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-acf_pages_by_template', $this->settings['dir'] . 'js/input.js', array('acf-input'), $this->settings['version'] );
wp_register_style( 'acf-input-acf_pages_by_template', $this->settings['dir'] . 'css/input.css', array('acf-input'), $this->settings['version'] );
// scripts
wp_enqueue_script(array(
'acf-input-acf_pages_by_template',
));
// styles
wp_enqueue_style(array(
'acf-input-acf_pages_by_template',
));
}
/*
* input_admin_head()
*
* This action is called in the admin_head action on the edit screen where your field is created.
* Use this action to add CSS and JavaScript to assist your create_field() action.
*
* @info http://codex.wordpress.org/Plugin_API/Action_Reference/admin_head
* @type action
* @since 3.6
* @date 23/01/13
*/
function input_admin_head()
{
// Note: This function can be removed if not used
}
/*
* field_group_admin_enqueue_scripts()
*
* This action is called in the admin_enqueue_scripts action on the edit screen where your field is edited.
* Use this action to add CSS + JavaScript to assist your create_field_options() action.
*
* $info http://codex.wordpress.org/Plugin_API/Action_Reference/admin_enqueue_scripts
* @type action
* @since 3.6
* @date 23/01/13
*/
function field_group_admin_enqueue_scripts()
{
// Note: This function can be removed if not used
}
/*
* field_group_admin_head()
*
* This action is called in the admin_head action on the edit screen where your field is edited.
* Use this action to add CSS and JavaScript to assist your create_field_options() action.
*
* @info http://codex.wordpress.org/Plugin_API/Action_Reference/admin_head
* @type action
* @since 3.6
* @date 23/01/13
*/
function field_group_admin_head()
{
// Note: This function can be removed if not used
}
/*
* load_value()
*
* This filter is applied to the $value after it is loaded from the db
*
* @type filter
* @since 3.6
* @date 23/01/13
*
* @param $value - the value found in 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 value to be saved in the database
*/
function load_value( $value, $post_id, $field )
{
// Note: This function can be removed if not used
return $value;
}
/*
* update_value()
*
* This filter is applied 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 )
{
// Note: This function can be removed if not used
return $value;
}
/*
* format_value()
*
* This filter is applied 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 )
{
// defaults?
/*
$field = array_merge($this->defaults, $field);
*/
// perhaps use $field['preview_size'] to alter the $value?
// Note: This function can be removed if not used
return $value;
}
/*
* format_value_for_api()
*
* This filter is applied 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 )
{
// defaults?
/*
$field = array_merge($this->defaults, $field);
*/
// perhaps use $field['preview_size'] to alter the $value?
// Note: This function can be removed if not used
return $value;
}
/*
* load_field()
*
* This filter is applied 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 )
{
// Note: This function can be removed if not used
return $field;
}
/*
* update_field()
*
* This filter is applied to the $field before it is saved to the database
*
* @type filter
* @since 3.6
* @date 23/01/13
*
* @param $field - the field array holding all the field options
* @param $post_id - the field group ID (post_type = acf)
*
* @return $field - the modified field
*/
function update_field( $field, $post_id )
{
// Note: This function can be removed if not used
return $field;
}
}
// create field
new acf_field_acf_pages_by_template();
?>