/**
  * Summary.
  *
  * Description.
  *
  * @since x.x.x
  * @access (for functions: only use if private)
  *
  * @see Function/method/class relied on
  * @link URL
  * @global type $varname Description.
  * @global type $varname Description.
  *
  * @param type $var Description.
  * @param type $var Optional. Description.
  * @return type Description.
  */
 public function save_child_fields()
 {
     /**
      * check nonce
      */
     if (0 || !isset($_REQUEST['_wpnonce']) || !isset($_REQUEST['current']) || !isset($_REQUEST['parent']) || !isset($_REQUEST['child']) || !wp_verify_nonce($_REQUEST['_wpnonce'], $this->get_nonce('child-post-fields-save', $_REQUEST['parent'], $_REQUEST['child']))) {
         $this->verification_failed_and_die();
     }
     $parent = $_REQUEST['parent'];
     $child = $_REQUEST['child'];
     $fields = array();
     parse_str($_REQUEST['current'], $fields);
     $relationships = get_option('wpcf_post_relationship', array());
     $relationships[$parent][$child]['fields_setting'] = sanitize_text_field($fields['fields_setting']);
     /**
      * sanitize
      */
     require_once WPCF_INC_ABSPATH . '/post-relationship.php';
     $relationships[$parent][$child]['fields'] = array();
     if (isset($fields['fields']) && is_array($fields['fields'])) {
         $allowed_keys = wpcf_post_relationship_get_specific_fields_keys($child);
         foreach ($fields['fields'] as $key => $value) {
             // other parent cpts
             if ('_wpcf_pr_parents' == $key) {
                 $relationships[$parent][$child]['fields'][$key] = array();
                 foreach (array_keys($value) as $parents) {
                     $relationships[$parent][$child]['fields'][$key][$parents] = 1;
                 }
             }
             /**
              * sanitize Taxonomy
              */
             if ('_wpcf_pr_taxonomies' == $key) {
                 if (is_array($value)) {
                     $relationships[$parent][$child]['fields'][$key] = array();
                     foreach (array_keys($value) as $taxonomy) {
                         $taxonomy = get_taxonomy($taxonomy);
                         if (is_object($taxonomy)) {
                             $relationships[$parent][$child]['fields'][$key][$taxonomy->name] = 1;
                         }
                     }
                 }
                 continue;
             }
             if (array_key_exists($key, $allowed_keys)) {
                 $relationships[$parent][$child]['fields'][$key] = 1;
             }
         }
     }
     update_option('wpcf_post_relationship', $relationships);
     die;
 }
/**
 * Edit fields form.
 *
 * @param type $parent
 * @param type $child
 */
function wpcf_pr_admin_edit_fields($parent, $child)
{
    $post_type_parent = get_post_type_object($parent);
    $post_type_child = get_post_type_object($child);
    if (null == $post_type_parent || null == $post_type_child) {
        die(__('Wrong post types', 'wpcf'));
    }
    $relationships = get_option('wpcf_post_relationship', array());
    if (!isset($relationships[$parent][$child])) {
        die(__('Relationship do not exist', 'wpcf'));
    }
    $data = $relationships[$parent][$child];
    wp_enqueue_script('jquery');
    wp_enqueue_style('types');
    wpcf_admin_ajax_head('Edit fields', 'wpcf');
    // Process submit
    if (isset($_POST['_wpnonce']) && wp_verify_nonce($_POST['_wpnonce'], 'pt_edit_fields')) {
        $relationships[$parent][$child]['fields_setting'] = sanitize_text_field($_POST['fields_setting']);
        /**
         * sanitize
         */
        $relationships[$parent][$child]['fields'] = array();
        if (isset($_POST['fields']) && is_array($_POST['fields'])) {
            $allowed_keys = wpcf_post_relationship_get_specific_fields_keys($child);
            foreach ($_POST['fields'] as $key => $value) {
                /**
                 * sanitize Taxonomy
                 */
                if ('_wpcf_pr_taxonomies' == $key) {
                    if (is_array($value)) {
                        $relationships[$parent][$child]['fields'][$key] = array();
                        foreach (array_keys($value) as $taxonomy) {
                            $taxonomy = get_taxonomy($taxonomy);
                            if (is_object($taxonomy)) {
                                $relationships[$parent][$child]['fields'][$key][$taxonomy->name] = 1;
                            }
                        }
                    }
                    continue;
                }
                if (array_key_exists($key, $allowed_keys)) {
                    $relationships[$parent][$child]['fields'][$key] = 1;
                }
            }
        }
        update_option('wpcf_post_relationship', $relationships);
        ?>
        <script type="text/javascript">
            window.parent.jQuery('#TB_closeWindowButton').trigger('click');
            window.parent.location.reload();
        </script>
        <?php 
        die;
    }
    $groups = wpcf_admin_get_groups_by_post_type($child);
    $options_cf = array();
    $repetitive_warning = false;
    $repetitive_warning_markup = array();
    $repetitive_warning_txt = __('Repeating fields should not be used in child posts. Types will update all field values.', 'wpcf');
    foreach ($groups as $group) {
        $fields = wpcf_admin_fields_get_fields_by_group($group['id']);
        foreach ($fields as $key => $cf) {
            $__key = wpcf_types_cf_under_control('check_outsider', $key) ? $key : WPCF_META_PREFIX . $key;
            $options_cf[$__key] = array();
            $options_cf[$__key]['#title'] = $cf['name'];
            $options_cf[$__key]['#name'] = 'fields[' . $__key . ']';
            $options_cf[$__key]['#default_value'] = isset($data['fields'][$__key]) ? 1 : 0;
            // Repetitive warning
            if (wpcf_admin_is_repetitive($cf)) {
                if (!$repetitive_warning) {
                    $repetitive_warning_markup = array('#type' => 'markup', '#markup' => '<div class="message error" style="display:none;" id="wpcf-repetitive-warning"><p>' . $repetitive_warning_txt . '</p></div>');
                }
                $repetitive_warning = true;
                $options_cf[$__key]['#after'] = !isset($data['fields'][$__key]) ? '<div class="message error" style="display:none;"><p>' : '<div class="message error"><p>';
                $options_cf[$__key]['#after'] .= $repetitive_warning_txt;
                $options_cf[$__key]['#after'] .= '</p></div>';
                $options_cf[$__key]['#attributes'] = array('onclick' => 'jQuery(this).parent().find(\'.message\').toggle();', 'disabled' => 'disabled');
            }
        }
    }
    $form = array();
    $form['repetitive_warning_markup'] = $repetitive_warning_markup;
    $form['select'] = array('#type' => 'radios', '#name' => 'fields_setting', '#options' => array(__('Title, all custom fields and parents', 'wpcf') => 'all_cf', __('Do not show management options for this post type', 'wpcf') => 'only_list', __('All fields, including the standard post fields', 'wpcf') => 'all_cf_standard', __('Specific fields', 'wpcf') => 'specific'), '#default_value' => empty($data['fields_setting']) ? 'all_cf' : $data['fields_setting']);
    /**
     * check default, to avoid missing configuration
     */
    if (!in_array($form['select']['#default_value'], $form['select']['#options'])) {
        $form['select']['#default_value'] = 'all_cf';
    }
    /**
     * build options for "Specific fields"
     */
    $options = array();
    /**
     * check and add built-in properites
     */
    $supports = wpcf_post_relationship_get_supported_fields_by_post_type($child);
    foreach ($supports as $child_field_key => $child_field_data) {
        $options[$child_field_data['name']] = array('#title' => $child_field_data['title'], '#name' => sprintf('fields[%s]', $child_field_data['name']), '#default_value' => isset($data['fields'][$child_field_data['name']]) ? 1 : 0);
    }
    /**
     * add custom fields
     */
    $options = $options + $options_cf;
    $temp_belongs = wpcf_pr_admin_get_belongs($child);
    foreach ($temp_belongs as $temp_parent => $temp_data) {
        if ($temp_parent == $parent) {
            continue;
        }
        $temp_parent_type = get_post_type_object($temp_parent);
        $options[$temp_parent] = array();
        $options[$temp_parent]['#title'] = $temp_parent_type->label;
        $options[$temp_parent]['#name'] = 'fields[_wpcf_pr_parents][' . $temp_parent . ']';
        $options[$temp_parent]['#default_value'] = isset($data['fields']['_wpcf_pr_parents'][$temp_parent]) ? 1 : 0;
    }
    /**
     * remove "Specific fields" if there is no fields
     */
    if (empty($options)) {
        unset($form['select']['#options'][__('Specific fields', 'wpcf')]);
        if ('specific' == $form['select']['#default_value']) {
            $form['select']['#default_value'] = 'all_cf';
        }
    }
    // Taxonomies
    $taxonomies = get_object_taxonomies($post_type_child->name, 'objects');
    if (!empty($taxonomies)) {
        foreach ($taxonomies as $tax_id => $taxonomy) {
            $options[$tax_id] = array();
            $options[$tax_id]['#title'] = sprintf(__('Taxonomy - %s', 'wpcf'), $taxonomy->label);
            $options[$tax_id]['#name'] = 'fields[_wpcf_pr_taxonomies][' . $tax_id . ']';
            $options[$tax_id]['#default_value'] = isset($data['fields']['_wpcf_pr_taxonomies'][$tax_id]) ? 1 : 0;
        }
    }
    $form['specific'] = array('#type' => 'checkboxes', '#name' => 'fields', '#options' => $options, '#default_value' => isset($data['fields']), '#before' => '<div id="wpcf-specific" style="display:none;margin:10px 0 0 20px;">', '#after' => '</div>');
    $form['submit'] = array('#type' => 'submit', '#name' => 'submit', '#value' => __('Save', 'wpcf'), '#attributes' => array('class' => 'button-primary'));
    echo '<form method="post" action="" class="types-select-child-fields">';
    echo wpcf_form_simple($form);
    echo wp_nonce_field('pt_edit_fields');
    echo '</form>';
    ?>
    <script type="text/javascript">
        jQuery(document).ready(function(){
            if (jQuery('input[name="fields_setting"]:checked').val() == 'specific') {
                jQuery('#wpcf-specific').show();
            } else {
    <?php 
    if ($repetitive_warning && 'only_list' != $form['select']['#default_value']) {
        ?>
                    jQuery('#wpcf-repetitive-warning').show();
        <?php 
    }
    ?>
            }
            jQuery('input[name="fields_setting"]').change(function(){
                if (jQuery(this).val() == 'specific') {
                    jQuery('#wpcf-specific').slideDown();
                } else {
                    jQuery('#wpcf-specific').slideUp();
    <?php 
    if ($repetitive_warning) {
        ?>
                    if ( 'only_list' != jQuery('input[name="fields_setting"]:checked').val()) {
                        jQuery('#wpcf-repetitive-warning').show();
                    }
        <?php 
    }
    ?>
                }
            });
        });
    </script>
    <?php 
    wpcf_admin_ajax_footer();
}