WebDevStudios /
CMB2
Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
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 extends CMB2_Hookup_Base { |
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| 15 | |||
| 16 | /** |
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| 17 | * Only allow JS registration once |
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| 18 | * @var bool |
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| 19 | * @since 2.0.7 |
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| 20 | */ |
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| 21 | protected static $js_registration_done = false; |
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| 22 | |||
| 23 | /** |
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| 24 | * Only allow CSS 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 $css_registration_done = false; |
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| 29 | |||
| 30 | /** |
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| 31 | * CMB taxonomies array for term meta |
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| 32 | * @var array |
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| 33 | * @since 2.2.0 |
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| 34 | */ |
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| 35 | protected $taxonomies = array(); |
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| 36 | |||
| 37 | /** |
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| 38 | * Custom field columns. |
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| 39 | * @var array |
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| 40 | * @since 2.2.2 |
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| 41 | */ |
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| 42 | protected $columns = array(); |
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| 43 | |||
| 44 | /** |
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| 45 | * Constructor |
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| 46 | * @since 2.0.0 |
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| 47 | * @param CMB2 $cmb The CMB2 object to hookup |
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| 48 | */ |
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| 49 | public function __construct( CMB2 $cmb ) { |
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| 50 | $this->cmb = $cmb; |
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| 51 | $this->object_type = $this->cmb->mb_object_type(); |
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| 52 | |||
| 53 | $this->universal_hooks(); |
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| 54 | |||
| 55 | if ( is_admin() ) { |
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| 56 | |||
| 57 | switch ( $this->object_type ) { |
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| 58 | case 'post': |
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| 59 | return $this->post_hooks(); |
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| 60 | case 'comment': |
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| 61 | return $this->comment_hooks(); |
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| 62 | case 'user': |
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| 63 | return $this->user_hooks(); |
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| 64 | case 'term': |
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| 65 | return $this->term_hooks(); |
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| 66 | } |
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| 67 | |||
| 68 | } |
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| 69 | } |
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| 70 | |||
| 71 | public function universal_hooks() { |
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| 72 | foreach ( get_class_methods( 'CMB2_Show_Filters' ) as $filter ) { |
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| 73 | add_filter( 'cmb2_show_on', array( 'CMB2_Show_Filters', $filter ), 10, 3 ); |
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| 74 | } |
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| 75 | |||
| 76 | if ( is_admin() ) { |
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| 77 | // register our scripts and styles for cmb |
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| 78 | $this->once( 'admin_enqueue_scripts', array( __CLASS__, 'register_scripts' ), 8 ); |
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| 79 | $this->once( 'admin_enqueue_scripts', array( $this, 'do_scripts' ) ); |
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| 80 | |||
| 81 | $this->maybe_enqueue_column_display_styles(); |
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| 82 | } |
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| 83 | } |
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| 84 | |||
| 85 | public function post_hooks() { |
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| 98 | |||
| 99 | public function comment_hooks() { |
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| 108 | |||
| 109 | public function user_hooks() { |
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| 110 | $priority = $this->get_priority(); |
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| 111 | |||
| 112 | add_action( 'show_user_profile', array( $this, 'user_metabox' ), $priority ); |
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| 113 | add_action( 'edit_user_profile', array( $this, 'user_metabox' ), $priority ); |
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| 114 | add_action( 'user_new_form', array( $this, 'user_new_metabox' ), $priority ); |
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| 115 | |||
| 116 | add_action( 'personal_options_update', array( $this, 'save_user' ) ); |
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| 117 | add_action( 'edit_user_profile_update', array( $this, 'save_user' ) ); |
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| 118 | add_action( 'user_register', array( $this, 'save_user' ) ); |
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| 119 | |||
| 120 | View Code Duplication | if ( $this->cmb->has_columns ) { |
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| 121 | add_filter( 'manage_users_columns', array( $this, 'register_column_headers' ) ); |
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| 122 | add_filter( 'manage_users_custom_column', array( $this, 'return_column_display' ), 10, 3 ); |
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| 123 | } |
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| 124 | } |
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| 125 | |||
| 126 | public function term_hooks() { |
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| 127 | if ( ! function_exists( 'get_term_meta' ) ) { |
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| 128 | wp_die( __( 'Term Metadata is a WordPress > 4.4 feature. Please upgrade your WordPress install.', 'cmb2' ) ); |
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| 129 | } |
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| 130 | |||
| 131 | if ( ! $this->cmb->prop( 'taxonomies' ) ) { |
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| 132 | wp_die( __( 'Term metaboxes configuration requires a \'taxonomies\' parameter', 'cmb2' ) ); |
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| 133 | } |
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| 134 | |||
| 135 | $this->taxonomies = (array) $this->cmb->prop( 'taxonomies' ); |
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| 136 | $show_on_term_add = $this->cmb->prop( 'new_term_section' ); |
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| 137 | $priority = $this->get_priority( 8 ); |
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| 138 | |||
| 139 | foreach ( $this->taxonomies as $taxonomy ) { |
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| 140 | // Display our form data |
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| 141 | add_action( "{$taxonomy}_edit_form", array( $this, 'term_metabox' ), $priority, 2 ); |
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| 142 | |||
| 143 | $show_on_add = is_array( $show_on_term_add ) |
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| 144 | ? in_array( $taxonomy, $show_on_term_add ) |
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| 145 | : (bool) $show_on_term_add; |
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| 146 | |||
| 147 | $show_on_add = apply_filters( "cmb2_show_on_term_add_form_{$this->cmb->cmb_id}", $show_on_add, $this->cmb ); |
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| 148 | |||
| 149 | // Display form in add-new section (unless specified not to) |
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| 150 | if ( $show_on_add ) { |
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| 151 | add_action( "{$taxonomy}_add_form_fields", array( $this, 'term_metabox' ), $priority, 2 ); |
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| 152 | } |
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| 153 | |||
| 154 | View Code Duplication | if ( $this->cmb->has_columns ) { |
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| 155 | add_filter( "manage_edit-{$taxonomy}_columns", array( $this, 'register_column_headers' ) ); |
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| 156 | add_filter( "manage_{$taxonomy}_custom_column", array( $this, 'return_column_display' ), 10, 3 ); |
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| 157 | } |
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| 158 | } |
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| 159 | |||
| 160 | add_action( 'created_term', array( $this, 'save_term' ), 10, 3 ); |
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| 161 | add_action( 'edited_terms', array( $this, 'save_term' ), 10, 2 ); |
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| 162 | add_action( 'delete_term', array( $this, 'delete_term' ), 10, 3 ); |
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| 163 | |||
| 164 | } |
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| 165 | |||
| 166 | /** |
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| 167 | * Registers styles for CMB2 |
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| 168 | * @since 2.0.7 |
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| 169 | */ |
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| 170 | 1 | protected static function register_styles() { |
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| 171 | 1 | if ( self::$css_registration_done ) { |
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| 172 | return; |
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| 173 | } |
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| 174 | |||
| 175 | // Only use minified files if SCRIPT_DEBUG is off |
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| 176 | 1 | $min = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min'; |
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| 177 | 1 | $front = is_admin() ? '' : '-front'; |
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| 178 | 1 | $rtl = is_rtl() ? '-rtl' : ''; |
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| 179 | |||
| 180 | // Filter required styles and register stylesheet |
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| 181 | 1 | $dependencies = apply_filters( 'cmb2_style_dependencies', array() ); |
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| 182 | 1 | wp_register_style( 'cmb2-styles', cmb2_utils()->url( "css/cmb2{$front}{$rtl}{$min}.css" ), $dependencies ); |
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| 183 | 1 | wp_register_style( 'cmb2-display-styles', cmb2_utils()->url( "css/cmb2-display{$rtl}{$min}.css" ), $dependencies ); |
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| 184 | |||
| 185 | 1 | self::$css_registration_done = true; |
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| 186 | 1 | } |
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| 187 | |||
| 188 | /** |
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| 189 | * Registers scripts for CMB2 |
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| 190 | * @since 2.0.7 |
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| 191 | */ |
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| 192 | 1 | protected static function register_js() { |
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| 202 | |||
| 203 | /** |
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| 204 | * Registers scripts and styles for CMB2 |
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| 205 | * @since 1.0.0 |
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| 206 | */ |
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| 207 | public static function register_scripts() { |
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| 211 | |||
| 212 | /** |
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| 213 | * Enqueues scripts and styles for CMB2 in admin_head. |
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| 214 | * @since 1.0.0 |
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| 215 | */ |
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| 216 | public function do_scripts( $hook ) { |
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| 240 | |||
| 241 | /** |
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| 242 | * Register the CMB2 field column headers. |
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| 243 | * @since 2.2.2 |
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| 244 | */ |
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| 245 | public function register_column_headers( $columns ) { |
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| 272 | |||
| 273 | /** |
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| 274 | * The CMB2 field column display output. |
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| 275 | * @since 2.2.2 |
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| 276 | */ |
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| 277 | public function column_display( $column_name, $object_id ) { |
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| 289 | |||
| 290 | /** |
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| 291 | * Returns the column display. |
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| 292 | * @since 2.2.2 |
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| 293 | */ |
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| 294 | public function return_column_display( $empty, $custom_column, $object_id ) { |
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| 301 | |||
| 302 | /** |
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| 303 | * Add metaboxes (to 'post' or 'comment' object types) |
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| 304 | * @since 1.0.0 |
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| 305 | */ |
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| 306 | public function add_metaboxes() { |
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| 337 | |||
| 338 | /** |
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| 339 | * Remove the specified default taxonomy metaboxes for a post-type. |
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| 340 | * @since 2.2.3 |
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| 341 | * @param string $post_type Post type to remove the metabox for. |
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| 342 | */ |
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| 343 | protected function remove_default_tax_metaboxes( $post_type ) { |
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| 353 | |||
| 354 | /** |
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| 355 | * Add 'closed' class to metabox |
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| 356 | * @since 2.0.0 |
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| 357 | * @param array $classes Array of classes |
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| 358 | * @return array Modified array of classes |
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| 359 | */ |
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| 360 | public function close_metabox_class( $classes ) { |
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| 364 | |||
| 365 | /** |
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| 366 | * Display metaboxes for a post or comment object |
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| 367 | * @since 1.0.0 |
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| 368 | */ |
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| 369 | public function metabox_callback() { |
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| 373 | |||
| 374 | /** |
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| 375 | * Display metaboxes for new user page |
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| 376 | * @since 1.0.0 |
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| 377 | */ |
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| 378 | public function user_new_metabox( $section ) { |
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| 385 | |||
| 386 | /** |
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| 387 | * Display metaboxes for a user object |
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| 388 | * @since 1.0.0 |
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| 389 | */ |
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| 390 | public function user_metabox() { |
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| 393 | |||
| 394 | /** |
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| 395 | * Display metaboxes for a taxonomy term object |
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| 396 | * @since 2.2.0 |
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| 397 | */ |
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| 398 | public function term_metabox() { |
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| 401 | |||
| 402 | /** |
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| 403 | * Display metaboxes for an object type |
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| 404 | * @since 2.2.0 |
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| 405 | * @param string $type Object type |
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| 406 | * @return void |
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| 407 | */ |
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| 408 | public function show_form_for_type( $type ) { |
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| 426 | |||
| 427 | /** |
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| 428 | * Determines if metabox should be shown in current context |
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| 429 | * @since 2.0.0 |
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| 430 | * @return bool Whether metabox should be added/shown |
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| 431 | */ |
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| 432 | public function show_on() { |
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| 447 | |||
| 448 | /** |
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| 449 | * Get the CMB priority property set to numeric hook priority. |
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| 450 | * @since 2.2.0 |
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| 451 | * @param integer $default Default display hook priority. |
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| 452 | * @return integer Hook priority. |
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| 453 | */ |
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| 454 | public function get_priority( $default = 10 ) { |
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| 476 | |||
| 477 | /** |
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| 478 | * Save data from post metabox |
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| 479 | * @since 1.0.0 |
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| 480 | * @param int $post_id Post ID |
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| 481 | * @param mixed $post Post object |
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| 482 | * @return null |
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| 483 | */ |
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| 484 | public function save_post( $post_id, $post = false ) { |
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| 503 | |||
| 504 | /** |
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| 505 | * Save data from comment metabox |
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| 506 | * @since 2.0.9 |
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| 507 | * @param int $comment_id Comment ID |
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| 508 | * @return null |
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| 509 | */ |
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| 510 | public function save_comment( $comment_id ) { |
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| 518 | |||
| 519 | /** |
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| 520 | * Save data from user fields |
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| 521 | * @since 1.0.x |
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| 522 | * @param int $user_id User ID |
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| 523 | * @return null |
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| 524 | */ |
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| 525 | public function save_user( $user_id ) { |
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| 531 | |||
| 532 | /** |
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| 533 | * Save data from term fields |
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| 534 | * @since 2.2.0 |
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| 535 | * @param int $term_id Term ID |
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| 536 | * @param int $tt_id Term Taxonomy ID |
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| 537 | * @param string $taxonomy Taxonomy |
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| 538 | * @return null |
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| 539 | */ |
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| 540 | public function save_term( $term_id, $tt_id, $taxonomy = '' ) { |
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| 548 | |||
| 549 | /** |
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| 550 | * Delete term meta when a term is deleted. |
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| 551 | * @since 2.2.0 |
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| 552 | * @param int $term_id Term ID |
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| 553 | * @param int $tt_id Term Taxonomy ID |
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| 554 | * @param string $taxonomy Taxonomy |
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| 555 | * @return null |
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| 556 | */ |
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| 557 | public function delete_term( $term_id, $tt_id, $taxonomy = '' ) { |
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| 567 | |||
| 568 | /** |
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| 569 | * Determines if the current object is able to be saved |
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| 570 | * @since 2.0.9 |
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| 571 | * @param string $type Current post_type or comment_type |
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| 572 | * @return bool Whether object can be saved |
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| 573 | */ |
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| 574 | public function can_save( $type = '' ) { |
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| 586 | |||
| 587 | /** |
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| 588 | * Determine if taxonomy of term being modified is cmb2-editable. |
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| 589 | * @since 2.2.0 |
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| 590 | * @param string $taxonomy Taxonomy of term being modified. |
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| 591 | * @return bool Whether taxonomy is editable. |
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| 592 | */ |
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| 593 | public function taxonomy_can_save( $taxonomy ) { |
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| 606 | |||
| 607 | /** |
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| 608 | * Enqueues the 'cmb2-display-styles' if the conditions match (has columns, on the right page, etc). |
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| 609 | * @since 2.2.2.1 |
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| 610 | */ |
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| 611 | protected function maybe_enqueue_column_display_styles() { |
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| 622 | |||
| 623 | /** |
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| 624 | * Includes CMB2 styles |
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| 625 | * @since 2.0.0 |
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| 626 | */ |
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| 627 | 1 | public static function enqueue_cmb_css( $handle = 'cmb2-styles' ) { |
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| 640 | 1 | ||
| 641 | /** |
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| 642 | * Includes CMB2 JS |
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| 643 | * @since 2.0.0 |
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| 644 | */ |
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| 645 | public static function enqueue_cmb_js() { |
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| 653 | |||
| 654 | } |
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| 655 |
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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.