1 <?php
  2 
  3 /*
  4  * WORDSMITH META BOX CLASS
  5  *
  6  * this class is the base object for a custom meta box to be added into wordpress.
  7  *
  8  */
  9 
 10 namespace nk2580\wordsmith\MetaBoxes;
 11 
 12 class MetaBox {
 13 
 14     protected $name;
 15     protected $post_type;
 16     protected $title;
 17     protected $context = 'side';
 18     protected $priority = 'default';
 19     protected $fields = [
 20         ['label' => "Exmple Field", 'meta-key' => "example_meta", 'control' => "nk2580\wordsmith\Inputs\Fields\TextField"],
 21     ];
 22 
 23     /**
 24      * Hook into the appropriate actions when the class is constructed.
 25      */
 26     public function __construct() {
 27         $this->init();
 28     }
 29 
 30     public function init() {
 31         add_action('add_meta_boxes', array($this, 'add_boxes'));
 32         add_action('save_post', array($this, 'save_box_content'));
 33     }
 34 
 35     /**
 36      * Adds the meta box container.
 37      */
 38     public function add_boxes() {
 39         foreach ($this->post_type as $screen) {
 40             add_meta_box($this->name, $this->title, array($this, 'load_box_content'), $screen, $this->context, $this->priority);
 41         }
 42     }
 43 
 44     /**
 45      * Save the meta when the post is saved.
 46      *
 47      * @param int $post_id The ID of the post being saved.
 48      */
 49     public function save($post_id) {
 50         foreach ($this->fields as $field) {
 51             if (isset($field['options'])) {
 52                 $control = new $field['control']($field['meta-key'], $field['options'], $field['label'], $_POST[$field['meta-key']]);
 53             } else {
 54                 $control = new $field['control']($field['meta-key'], $field['label'], $_POST[$field['meta-key']]);
 55             }
 56             if ($control->isFieldValid()) {
 57                 update_post_meta($post_id, $field['meta-key'], $control->sanitize());
 58             }
 59             else{
 60                 return $field['meta-key'];
 61             }
 62         }
 63     }
 64 
 65     /**
 66      * vefiy we can save the data.
 67      */
 68     public function verify_save($post_id) {
 69 
 70         if (!isset($_POST[$this->name . '_box_nonce']))
 71             return $post_id;
 72 
 73         $nonce = $_POST[$this->name . '_box_nonce'];
 74 
 75         if (!wp_verify_nonce($nonce, $this->name . '_box'))
 76             return $post_id;
 77 
 78         if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE)
 79             return $post_id;
 80 
 81         if ('page' == $_POST['post_type']) {
 82 
 83             if (!current_user_can('edit_page', $post_id))
 84                 return $post_id;
 85         } else {
 86 
 87             if (!current_user_can('edit_post', $post_id))
 88                 return $post_id;
 89         }
 90     }
 91 
 92     /**
 93      * Render Meta Box content.
 94      *
 95      * @param WP_Post $post The post object.
 96      */
 97     public function content($post) {
 98         foreach ($this->fields as $field) {
 99             $value = get_post_meta($post->ID, $field['meta-key'], true);
100             if (isset($field['options'])) {
101                 $control = new $field['control']($field['meta-key'], $field['options'], $field['label'], $value);
102             } else {
103                 $control = new $field['control']($field['meta-key'], $field['label'], $value);
104             }
105             $control->printField();
106         }
107     }
108 
109     /*
110      * Add The Box Nonce To The Meta Box
111      */
112 
113     private function add_nonce() {
114         // Add an nonce field so we can check for it later.
115         wp_nonce_field($this->name . '_box', $this->name . '_box_nonce');
116     }
117 
118     /*
119      * load the content of the box
120      */
121 
122     public function load_box_content($post) {
123         $this->add_nonce();
124         $this->content($post);
125     }
126 
127     /*
128      * load the content of the box
129      */
130 
131     public function save_box_content($post_id) {
132         $this->verify_save($post_id);
133         $this->save($post_id);
134     }
135 
136 }

API documentation generated by ApiGen