WebDevStudios /
CMB2
Complex classes like CMB2_hookup often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use CMB2_hookup, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 14 | class CMB2_hookup { |
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| 15 | |||
| 16 | /** |
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| 17 | * Array of all hooks done (to be run once) |
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| 18 | * @var array |
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| 19 | * @since 2.0.0 |
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| 20 | */ |
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| 21 | protected static $hooks_completed = array(); |
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| 22 | |||
| 23 | /** |
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| 24 | * Only allow JS registration once |
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| 25 | * @var bool |
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| 26 | * @since 2.0.7 |
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| 27 | */ |
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| 28 | protected static $js_registration_done = false; |
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| 29 | |||
| 30 | /** |
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| 31 | * Only allow CSS registration once |
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| 32 | * @var bool |
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| 33 | * @since 2.0.7 |
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| 34 | */ |
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| 35 | protected static $css_registration_done = false; |
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| 36 | |||
| 37 | /** |
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| 38 | * @var CMB2 object |
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| 39 | * @since 2.0.2 |
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| 40 | */ |
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| 41 | protected $cmb; |
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| 42 | |||
| 43 | /** |
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| 44 | * CMB taxonomies array for term meta |
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| 45 | * @var array |
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| 46 | * @since 2.2.0 |
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| 47 | */ |
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| 48 | protected $taxonomies = array(); |
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| 49 | |||
| 50 | /** |
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| 51 | * The object type we are performing the hookup for |
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| 52 | * @var string |
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| 53 | * @since 2.0.9 |
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| 54 | */ |
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| 55 | protected $object_type = 'post'; |
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| 56 | |||
| 57 | public function __construct( CMB2 $cmb ) { |
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| 78 | |||
| 79 | public function universal_hooks() { |
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| 80 | foreach ( get_class_methods( 'CMB2_Show_Filters' ) as $filter ) { |
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| 81 | add_filter( 'cmb2_show_on', array( 'CMB2_Show_Filters', $filter ), 10, 3 ); |
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| 82 | } |
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| 83 | |||
| 84 | if ( is_admin() ) { |
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| 85 | // register our scripts and styles for cmb |
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| 86 | $this->once( 'admin_enqueue_scripts', array( __CLASS__, 'register_scripts' ), 8 ); |
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| 87 | $this->once( 'admin_enqueue_scripts', array( $this, 'do_scripts' ) ); |
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| 88 | } |
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| 89 | } |
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| 90 | |||
| 91 | public function post_hooks() { |
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| 92 | add_action( 'add_meta_boxes', array( $this, 'add_metaboxes' ) ); |
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| 93 | add_action( 'add_attachment', array( $this, 'save_post' ) ); |
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| 94 | add_action( 'edit_attachment', array( $this, 'save_post' ) ); |
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| 95 | add_action( 'save_post', array( $this, 'save_post' ), 10, 2 ); |
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| 96 | } |
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| 97 | |||
| 98 | public function comment_hooks() { |
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| 99 | add_action( 'add_meta_boxes_comment', array( $this, 'add_metaboxes' ) ); |
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| 100 | add_action( 'edit_comment', array( $this, 'save_comment' ) ); |
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| 101 | } |
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| 102 | |||
| 103 | public function user_hooks() { |
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| 104 | $priority = $this->get_priority(); |
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| 105 | |||
| 106 | add_action( 'show_user_profile', array( $this, 'user_metabox' ), $priority ); |
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| 107 | add_action( 'edit_user_profile', array( $this, 'user_metabox' ), $priority ); |
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| 108 | add_action( 'user_new_form', array( $this, 'user_new_metabox' ), $priority ); |
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| 109 | |||
| 110 | 1 | add_action( 'personal_options_update', array( $this, 'save_user' ) ); |
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| 111 | 1 | add_action( 'edit_user_profile_update', array( $this, 'save_user' ) ); |
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| 112 | 1 | add_action( 'user_register', array( $this, 'save_user' ) ); |
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| 113 | } |
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| 114 | |||
| 115 | public function term_hooks() { |
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| 116 | 1 | if ( ! function_exists( 'get_term_meta' ) ) { |
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| 117 | wp_die( __( 'Term Metadata is a WordPress > 4.4 feature. Please upgrade your WordPress install.', 'cmb2' ) ); |
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| 118 | 1 | } |
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| 119 | |||
| 120 | 1 | if ( ! $this->cmb->prop( 'taxonomies' ) ) { |
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| 121 | 1 | wp_die( __( 'Term metaboxes configuration requires a \'taxonomies\' parameter', 'cmb2' ) ); |
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| 122 | 1 | } |
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| 123 | 1 | ||
| 124 | 1 | $this->taxonomies = (array) $this->cmb->prop( 'taxonomies' ); |
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| 125 | 1 | $show_on_term_add = $this->cmb->prop( 'new_term_section' ); |
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| 126 | 1 | $priority = $this->get_priority( 8 ); |
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| 127 | 1 | ||
| 128 | 1 | foreach ( $this->taxonomies as $taxonomy ) { |
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| 129 | // Display our form data |
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| 130 | 1 | add_action( "{$taxonomy}_edit_form", array( $this, 'term_metabox' ), $priority, 2 ); |
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| 131 | |||
| 132 | $show_on_add = is_array( $show_on_term_add ) |
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| 133 | 1 | ? in_array( $taxonomy, $show_on_term_add ) |
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| 134 | : (bool) $show_on_term_add; |
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| 135 | 1 | ||
| 136 | $show_on_add = apply_filters( "cmb2_show_on_term_add_form_{$this->cmb->cmb_id}", $show_on_add, $this->cmb ); |
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| 137 | 1 | ||
| 138 | // Display form in add-new section (unless specified not to) |
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| 139 | 1 | if ( $show_on_add ) { |
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| 140 | 1 | add_action( "{$taxonomy}_add_form_fields", array( $this, 'term_metabox' ), $priority, 2 ); |
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| 141 | 1 | } |
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| 142 | 1 | ||
| 143 | 1 | } |
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| 144 | 1 | ||
| 145 | add_action( 'created_term', array( $this, 'save_term' ), 10, 3 ); |
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| 146 | 1 | add_action( 'edited_terms', array( $this, 'save_term' ), 10, 2 ); |
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| 147 | add_action( 'delete_term', array( $this, 'delete_term' ), 10, 3 ); |
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| 148 | 1 | } |
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| 149 | 1 | ||
| 150 | 1 | /** |
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| 151 | 1 | * Registers styles for CMB2 |
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| 152 | 1 | * @since 2.0.7 |
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| 153 | 1 | */ |
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| 154 | 1 | protected static function register_styles() { |
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| 155 | 1 | if ( self::$css_registration_done ) { |
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| 156 | 1 | return; |
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| 157 | 1 | } |
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| 158 | 1 | ||
| 159 | 1 | // Only use minified files if SCRIPT_DEBUG is off |
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| 160 | 1 | $min = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min'; |
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| 161 | 1 | $front = is_admin() ? '' : '-front'; |
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| 162 | $rtl = is_rtl() ? '-rtl' : ''; |
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| 163 | 1 | ||
| 164 | 1 | // Filter required styles and register stylesheet |
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| 165 | 1 | $styles = apply_filters( 'cmb2_style_dependencies', array() ); |
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| 166 | 1 | wp_register_style( 'cmb2-styles', cmb2_utils()->url( "css/cmb2{$front}{$rtl}{$min}.css" ), $styles ); |
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| 167 | |||
| 168 | 1 | self::$css_registration_done = true; |
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| 169 | 1 | } |
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| 170 | |||
| 171 | 1 | /** |
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| 172 | 1 | * Registers scripts for CMB2 |
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| 173 | 1 | * @since 2.0.7 |
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| 174 | 1 | */ |
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| 175 | 1 | protected static function register_js() { |
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| 176 | 1 | if ( self::$js_registration_done ) { |
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| 177 | 1 | return; |
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| 178 | 1 | } |
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| 179 | |||
| 180 | 1 | $hook = is_admin() ? 'admin_footer' : 'wp_footer'; |
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| 181 | add_action( $hook, array( 'CMB2_JS', 'enqueue' ), 8 ); |
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| 182 | 1 | ||
| 183 | 1 | self::$js_registration_done = true; |
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| 184 | } |
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| 185 | |||
| 186 | /** |
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| 187 | * Registers scripts and styles for CMB2 |
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| 188 | * @since 1.0.0 |
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| 189 | */ |
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| 190 | public static function register_scripts() { |
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| 191 | self::register_styles(); |
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| 192 | self::register_js(); |
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| 193 | } |
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| 194 | |||
| 195 | /** |
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| 196 | * Enqueues scripts and styles for CMB2 in admin_head. |
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| 197 | * @since 1.0.0 |
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| 198 | */ |
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| 199 | public function do_scripts( $hook ) { |
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| 200 | $hooks = array( |
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| 201 | 'post.php', |
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| 202 | 'post-new.php', |
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| 203 | 'page-new.php', |
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| 204 | 'page.php', |
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| 205 | 'comment.php', |
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| 206 | 'edit-tags.php', |
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| 207 | 'term.php', |
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| 208 | 'user-new.php', |
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| 209 | 'profile.php', |
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| 210 | 'user-edit.php', |
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| 211 | ); |
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| 212 | // only pre-enqueue our scripts/styles on the proper pages |
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| 213 | // show_form_for_type will have us covered if we miss something here. |
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| 214 | if ( in_array( $hook, $hooks, true ) ) { |
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| 215 | if ( $this->cmb->prop( 'cmb_styles' ) ) { |
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| 216 | self::enqueue_cmb_css(); |
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| 217 | } |
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| 218 | if ( $this->cmb->prop( 'enqueue_js' ) ) { |
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| 219 | self::enqueue_cmb_js(); |
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| 220 | } |
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| 221 | } |
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| 222 | } |
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| 223 | |||
| 224 | /** |
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| 225 | * Add metaboxes (to 'post' or 'comment' object types) |
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| 226 | * @since 1.0.0 |
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| 227 | */ |
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| 228 | public function add_metaboxes() { |
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| 229 | |||
| 230 | if ( ! $this->show_on() ) { |
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| 231 | return; |
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| 232 | } |
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| 233 | |||
| 234 | foreach ( $this->cmb->prop( 'object_types' ) as $post_type ) { |
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| 235 | /** |
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| 236 | * To keep from registering an actual post-screen metabox, |
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| 237 | * omit the 'title' attribute from the metabox registration array. |
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| 238 | * |
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| 239 | * (WordPress will not display metaboxes without titles anyway) |
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| 240 | * |
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| 241 | * This is a good solution if you want to output your metaboxes |
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| 242 | * Somewhere else in the post-screen |
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| 243 | */ |
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| 244 | if ( $this->cmb->prop( 'title' ) ) { |
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| 245 | |||
| 246 | if ( $this->cmb->prop( 'closed' ) ) { |
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| 247 | add_filter( "postbox_classes_{$post_type}_{$this->cmb->cmb_id}", array( $this, 'close_metabox_class' ) ); |
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| 248 | } |
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| 249 | |||
| 250 | add_meta_box( $this->cmb->cmb_id, $this->cmb->prop( 'title' ), array( $this, 'metabox_callback' ), $post_type, $this->cmb->prop( 'context' ), $this->cmb->prop( 'priority' ) ); |
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| 251 | } |
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| 252 | } |
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| 253 | } |
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| 254 | |||
| 255 | /** |
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| 256 | * Add 'closed' class to metabox |
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| 257 | * @since 2.0.0 |
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| 258 | * @param array $classes Array of classes |
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| 259 | * @return array Modified array of classes |
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| 260 | */ |
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| 261 | public function close_metabox_class( $classes ) { |
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| 262 | $classes[] = 'closed'; |
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| 263 | return $classes; |
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| 264 | } |
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| 265 | |||
| 266 | /** |
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| 267 | * Display metaboxes for a post or comment object |
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| 268 | * @since 1.0.0 |
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| 269 | */ |
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| 270 | public function metabox_callback() { |
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| 271 | $object_id = 'comment' == $this->object_type ? get_comment_ID() : get_the_ID(); |
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| 272 | $this->cmb->show_form( $object_id, $this->object_type ); |
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| 273 | } |
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| 274 | |||
| 275 | /** |
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| 276 | * Display metaboxes for new user page |
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| 277 | * @since 1.0.0 |
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| 278 | */ |
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| 279 | public function user_new_metabox( $section ) { |
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| 280 | if ( $section == $this->cmb->prop( 'new_user_section' ) ) { |
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| 281 | $object_id = $this->cmb->object_id(); |
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| 282 | $this->cmb->object_id( isset( $_REQUEST['user_id'] ) ? $_REQUEST['user_id'] : $object_id ); |
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| 283 | $this->user_metabox(); |
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| 284 | } |
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| 285 | } |
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| 286 | |||
| 287 | /** |
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| 288 | * Display metaboxes for a user object |
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| 289 | * @since 1.0.0 |
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| 290 | */ |
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| 291 | public function user_metabox() { |
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| 292 | $this->show_form_for_type( 'user' ); |
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| 293 | } |
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| 294 | |||
| 295 | /** |
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| 296 | * Display metaboxes for a taxonomy term object |
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| 297 | * @since 2.2.0 |
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| 298 | */ |
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| 299 | public function term_metabox() { |
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| 300 | $this->show_form_for_type( 'term' ); |
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| 301 | } |
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| 302 | |||
| 303 | /** |
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| 304 | * Display metaboxes for an object type |
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| 305 | * @since 2.2.0 |
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| 306 | * @param string $type Object type |
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| 307 | * @return void |
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| 308 | */ |
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| 309 | public function show_form_for_type( $type ) { |
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| 310 | if ( $type != $this->cmb->mb_object_type() ) { |
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| 311 | return; |
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| 312 | } |
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| 313 | |||
| 314 | if ( ! $this->show_on() ) { |
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| 315 | return; |
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| 316 | } |
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| 317 | |||
| 318 | if ( $this->cmb->prop( 'cmb_styles' ) ) { |
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| 319 | self::enqueue_cmb_css(); |
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| 320 | } |
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| 321 | if ( $this->cmb->prop( 'enqueue_js' ) ) { |
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| 322 | self::enqueue_cmb_js(); |
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| 323 | } |
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| 324 | |||
| 325 | $this->cmb->show_form( 0, $type ); |
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| 326 | } |
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| 327 | |||
| 328 | /** |
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| 329 | * Determines if metabox should be shown in current context |
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| 330 | * @since 2.0.0 |
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| 331 | * @return bool Whether metabox should be added/shown |
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| 332 | */ |
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| 333 | public function show_on() { |
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| 334 | // If metabox is requesting to be conditionally shown |
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| 335 | $show = $this->cmb->should_show(); |
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| 336 | |||
| 337 | /** |
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| 338 | * Filter to determine if metabox should show. Default is true |
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| 339 | * |
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| 340 | * @param array $show Default is true, show the metabox |
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| 341 | * @param mixed $meta_box_args Array of the metabox arguments |
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| 342 | * @param mixed $cmb The CMB2 instance |
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| 343 | */ |
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| 344 | $show = (bool) apply_filters( 'cmb2_show_on', $show, $this->cmb->meta_box, $this->cmb ); |
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| 345 | |||
| 346 | return $show; |
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| 347 | } |
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| 348 | |||
| 349 | /** |
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| 350 | 1 | * Get the CMB priority property set to numeric hook priority. |
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| 351 | 1 | * @since 2.2.0 |
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| 352 | * @param integer $default Default display hook priority. |
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| 353 | 1 | * @return integer Hook priority. |
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| 354 | */ |
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| 355 | public function get_priority( $default = 10 ) { |
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| 356 | $priority = $this->cmb->prop( 'priority' ); |
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| 357 | |||
| 358 | if ( ! is_numeric( $priority ) ) { |
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| 359 | switch ( $priority ) { |
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| 360 | 1 | ||
| 361 | 1 | case 'high': |
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| 362 | 1 | $priority = 5; |
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| 363 | 1 | break; |
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| 364 | |||
| 365 | case 'low': |
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| 366 | $priority = 20; |
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| 367 | 1 | break; |
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| 368 | |||
| 369 | default: |
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| 370 | $priority = $default; |
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| 371 | break; |
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| 372 | } |
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| 373 | } |
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| 374 | |||
| 375 | return $priority; |
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| 376 | } |
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| 377 | |||
| 378 | /** |
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| 379 | * Save data from post metabox |
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| 380 | * @since 1.0.0 |
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| 381 | * @param int $post_id Post ID |
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| 382 | * @param mixed $post Post object |
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| 383 | * @return null |
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| 384 | */ |
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| 385 | public function save_post( $post_id, $post = false ) { |
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| 386 | |||
| 387 | $post_type = $post ? $post->post_type : get_post_type( $post_id ); |
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| 388 | |||
| 389 | $do_not_pass_go = ( |
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| 390 | ! $this->can_save( $post_type ) |
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| 391 | // check user editing permissions |
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| 392 | || ( 'page' == $post_type && ! current_user_can( 'edit_page', $post_id ) ) |
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| 393 | || ! current_user_can( 'edit_post', $post_id ) |
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| 394 | ); |
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| 395 | |||
| 396 | if ( $do_not_pass_go ) { |
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| 397 | // do not collect $200 |
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| 398 | return; |
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| 399 | } |
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| 400 | |||
| 401 | // take a trip to reading railroad – if you pass go collect $200 |
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| 402 | $this->cmb->save_fields( $post_id, 'post', $_POST ); |
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| 403 | } |
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| 404 | |||
| 405 | /** |
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| 406 | * Save data from comment metabox |
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| 407 | * @since 2.0.9 |
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| 408 | * @param int $comment_id Comment ID |
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| 409 | * @return null |
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| 410 | */ |
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| 411 | public function save_comment( $comment_id ) { |
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| 412 | |||
| 413 | $can_edit = current_user_can( 'moderate_comments', $comment_id ); |
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| 414 | |||
| 415 | if ( $this->can_save( get_comment_type( $comment_id ) ) && $can_edit ) { |
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| 416 | $this->cmb->save_fields( $comment_id, 'comment', $_POST ); |
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| 417 | } |
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| 418 | } |
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| 419 | |||
| 420 | /** |
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| 421 | * Save data from user fields |
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| 422 | * @since 1.0.x |
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| 423 | * @param int $user_id User ID |
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| 424 | * @return null |
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| 425 | */ |
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| 426 | public function save_user( $user_id ) { |
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| 427 | // check permissions |
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| 428 | if ( $this->can_save( 'user' ) ) { |
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| 429 | $this->cmb->save_fields( $user_id, 'user', $_POST ); |
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| 430 | } |
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| 431 | } |
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| 432 | |||
| 433 | /** |
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| 434 | * Save data from term fields |
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| 435 | * @since 2.2.0 |
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| 436 | * @param int $term_id Term ID |
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| 437 | * @param int $tt_id Term Taxonomy ID |
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| 438 | * @param string $taxonomy Taxonomy |
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| 439 | * @return null |
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| 440 | */ |
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| 441 | public function save_term( $term_id, $tt_id, $taxonomy = '' ) { |
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| 442 | $taxonomy = $taxonomy ? $taxonomy : $tt_id; |
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| 443 | |||
| 444 | // check permissions |
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| 445 | if ( $this->taxonomy_can_save( $taxonomy ) && $this->can_save( 'term' ) ) { |
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| 446 | $this->cmb->save_fields( $term_id, 'term', $_POST ); |
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| 447 | } |
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| 448 | } |
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| 449 | |||
| 450 | /** |
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| 451 | * Delete term meta when a term is deleted. |
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| 452 | * @since 2.2.0 |
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| 453 | * @param int $term_id Term ID |
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| 454 | * @param int $tt_id Term Taxonomy ID |
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| 455 | * @param string $taxonomy Taxonomy |
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| 456 | * @return null |
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| 457 | */ |
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| 458 | public function delete_term( $term_id, $tt_id, $taxonomy = '' ) { |
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| 459 | if ( $this->taxonomy_can_save( $taxonomy ) ) { |
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| 460 | |||
| 461 | foreach ( $this->cmb->prop( 'fields' ) as $field ) { |
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| 462 | $data_to_delete[ $field['id'] ] = ''; |
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| 463 | } |
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| 464 | |||
| 465 | $this->cmb->save_fields( $term_id, 'term', $data_to_delete ); |
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| 466 | } |
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| 467 | } |
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| 468 | |||
| 469 | /** |
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| 470 | * Determines if the current object is able to be saved |
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| 471 | * @since 2.0.9 |
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| 472 | * @param string $type Current post_type or comment_type |
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| 473 | * @return bool Whether object can be saved |
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| 474 | */ |
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| 475 | public function can_save( $type = '' ) { |
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| 476 | return ( |
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| 477 | $this->cmb->prop( 'save_fields' ) |
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| 478 | // check nonce |
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| 479 | && isset( $_POST[ $this->cmb->nonce() ] ) |
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| 480 | && wp_verify_nonce( $_POST[ $this->cmb->nonce() ], $this->cmb->nonce() ) |
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| 481 | // check if autosave |
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| 482 | && ! ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) |
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| 483 | // get the metabox types & compare it to this type |
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| 484 | && ( $type && in_array( $type, $this->cmb->prop( 'object_types' ) ) ) |
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| 485 | ); |
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| 486 | } |
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| 487 | |||
| 488 | /** |
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| 489 | * Determine if taxonomy of term being modified is cmb2-editable. |
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| 490 | * @since 2.2.0 |
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| 491 | * @param string $taxonomy Taxonomy of term being modified. |
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| 492 | * @return bool Whether taxonomy is editable. |
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| 493 | */ |
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| 494 | public function taxonomy_can_save( $taxonomy ) { |
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| 495 | if ( empty( $this->taxonomies ) || ! in_array( $taxonomy, $this->taxonomies ) ) { |
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| 496 | return false; |
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| 497 | } |
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| 498 | |||
| 499 | $taxonomy_object = get_taxonomy( $taxonomy ); |
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| 500 | // Can the user edit this term? |
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| 501 | if ( ! isset( $taxonomy_object->cap ) || ! current_user_can( $taxonomy_object->cap->edit_terms ) ) { |
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| 502 | return false; |
||
| 503 | } |
||
| 504 | |||
| 505 | return true; |
||
| 506 | } |
||
| 507 | |||
| 508 | /** |
||
| 509 | * Ensures WordPress hook only gets fired once |
||
| 510 | * @since 2.0.0 |
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| 511 | * @param string $action The name of the filter to hook the $hook callback to. |
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| 512 | * @param callback $hook The callback to be run when the filter is applied. |
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| 513 | * @param integer $priority Order the functions are executed |
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| 514 | * @param int $accepted_args The number of arguments the function accepts. |
||
| 515 | */ |
||
| 516 | public function once( $action, $hook, $priority = 10, $accepted_args = 1 ) { |
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| 517 | $key = md5( serialize( func_get_args() ) ); |
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| 518 | |||
| 519 | if ( in_array( $key, self::$hooks_completed ) ) { |
||
| 520 | return; |
||
| 521 | } |
||
| 522 | |||
| 523 | self::$hooks_completed[] = $key; |
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| 524 | add_filter( $action, $hook, $priority, $accepted_args ); |
||
| 525 | } |
||
| 526 | |||
| 527 | /** |
||
| 528 | * Includes CMB2 styles |
||
| 529 | * @since 2.0.0 |
||
| 530 | */ |
||
| 531 | public static function enqueue_cmb_css() { |
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| 532 | if ( ! apply_filters( 'cmb2_enqueue_css', true ) ) { |
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| 533 | return false; |
||
| 534 | } |
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| 535 | |||
| 536 | self::register_styles(); |
||
| 537 | return wp_enqueue_style( 'cmb2-styles' ); |
||
| 538 | } |
||
| 539 | |||
| 540 | /** |
||
| 541 | * Includes CMB2 JS |
||
| 542 | * @since 2.0.0 |
||
| 543 | */ |
||
| 544 | public static function enqueue_cmb_js() { |
||
| 552 | |||
| 553 | } |
||
| 554 |
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You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.