ankitpokhrel /
Dynamic-Featured-Image
Complex classes like Dynamic_Featured_Image 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 Dynamic_Featured_Image, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 46 | class Dynamic_Featured_Image { |
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| 47 | /** |
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| 48 | * Current version of the plugin. |
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| 49 | * |
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| 50 | * @since 3.0.0 |
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| 51 | */ |
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| 52 | const VERSION = '3.6.8'; |
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| 53 | |||
| 54 | /** |
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| 55 | * Text domain. |
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| 56 | * |
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| 57 | * @since 3.6.0 |
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| 58 | */ |
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| 59 | const TEXT_DOMAIN = 'dynamic-featured-image'; |
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| 60 | |||
| 61 | /** |
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| 62 | * Documentation Link. |
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| 63 | * |
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| 64 | * @since 3.6.0 |
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| 65 | */ |
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| 66 | const WIKI_LINK = 'https://github.com/ankitpokhrel/Dynamic-Featured-Image/wiki/'; |
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| 67 | |||
| 68 | /** |
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| 69 | * Upgrade Link. |
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| 70 | * |
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| 71 | * @since 3.6.0 |
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| 72 | */ |
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| 73 | const UPGRADE_LINK = 'https://ankitpokhrel.com/explore/dynamic-featured-image-pro/'; |
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| 74 | |||
| 75 | /** |
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| 76 | * Image upload directory. |
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| 77 | * |
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| 78 | * @var $upload_dir string |
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| 79 | */ |
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| 80 | private $upload_dir; |
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| 81 | |||
| 82 | /** |
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| 83 | * Image upload URL. |
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| 84 | * |
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| 85 | * @var $upload_url string |
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| 86 | */ |
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| 87 | private $upload_url; |
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| 88 | |||
| 89 | /** |
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| 90 | * Database object. |
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| 91 | * |
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| 92 | * @var $db wpdb |
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| 93 | */ |
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| 94 | private $db; |
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| 95 | |||
| 96 | /** |
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| 97 | * Title for dfi metabox. |
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| 98 | * |
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| 99 | * @var $metabox_title string |
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| 100 | */ |
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| 101 | protected $metabox_title; |
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| 102 | |||
| 103 | /** |
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| 104 | * Users post type filter for dfi metabox. |
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| 105 | * |
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| 106 | * @var $user_filter array |
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| 107 | */ |
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| 108 | protected $user_filter; |
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| 109 | |||
| 110 | /** |
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| 111 | * Constructor. Hooks all interactions to initialize the class. |
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| 112 | * |
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| 113 | * @since 1.0.0 |
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| 114 | * @access public |
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| 115 | * @global object $wpdb |
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| 116 | * |
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| 117 | * @see add_action() |
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| 118 | */ |
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| 119 | 1 | public function __construct() { |
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| 156 | |||
| 157 | /** |
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| 158 | * Return site protocol. |
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| 159 | * |
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| 160 | * @since 3.5.1 |
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| 161 | * @access public |
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| 162 | * |
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| 163 | * @return string |
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| 164 | */ |
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| 165 | private function get_protocol() { |
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| 168 | |||
| 169 | /** |
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| 170 | * Add required admin scripts. |
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| 171 | * |
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| 172 | * @since 1.0.0 |
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| 173 | * @access public |
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| 174 | * |
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| 175 | * @see wp_enqueue_style() |
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| 176 | * @see wp_register_script() |
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| 177 | * @see wp_enqueue_script() |
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| 178 | * |
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| 179 | * @return void |
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| 180 | */ |
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| 181 | 1 | public function enqueue_admin_scripts() { |
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| 204 | |||
| 205 | /** |
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| 206 | * Add upgrade link. |
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| 207 | * |
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| 208 | * @access public |
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| 209 | * @since 3.5.1 |
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| 210 | * @action plugin_action_links |
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| 211 | * |
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| 212 | * @codeCoverageIgnore |
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| 213 | * |
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| 214 | * @param array $links Action links. |
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| 215 | * |
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| 216 | * @return array |
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| 217 | */ |
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| 218 | public function dfi_action_links( $links ) { |
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| 225 | |||
| 226 | /** |
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| 227 | * Add featured meta boxes dynamically. |
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| 228 | * |
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| 229 | * @since 1.0.0 |
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| 230 | * @access public |
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| 231 | * @global object $post |
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| 232 | * |
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| 233 | * @see get_post_meta() |
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| 234 | * @see get_post_types() |
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| 235 | * @see add_meta_box() |
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| 236 | * @see add_filter() |
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| 237 | * |
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| 238 | * @return void |
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| 239 | */ |
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| 240 | public function initialize_featured_box() { |
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| 264 | |||
| 265 | /** |
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| 266 | * Translates more than one digit number digit by digit. |
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| 267 | * |
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| 268 | * @param int $number Integer to be translated. |
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| 269 | * |
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| 270 | * @return string Translated number |
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| 271 | */ |
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| 272 | 2 | protected function get_number_translation( $number ) { |
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| 285 | |||
| 286 | /** |
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| 287 | * Adds meta boxes. |
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| 288 | * |
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| 289 | * @param array $post_types Post types to show featured image box. |
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| 290 | * @param object $featured Callback arguments. |
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| 291 | * @param int $i Index of the featured image. |
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| 292 | * |
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| 293 | * @return void |
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| 294 | */ |
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| 295 | private function dfi_add_meta_box( $post_types, $featured = null, $i = null ) { |
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| 326 | |||
| 327 | /** |
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| 328 | * Separate thumb and full image url from given URL string. |
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| 329 | * |
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| 330 | * @since 3.3.1 |
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| 331 | * |
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| 332 | * @param string $url_string Url string. |
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| 333 | * @param string $state Thumb or full. |
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| 334 | * |
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| 335 | * @return string|null |
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| 336 | */ |
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| 337 | 3 | private function separate( $url_string, $state = 'thumb' ) { |
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| 346 | |||
| 347 | /** |
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| 348 | * Create a nonce field. |
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| 349 | * |
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| 350 | * @since 3.5.0 |
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| 351 | * |
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| 352 | * @see wp_nonce_field() |
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| 353 | * @see plugin_basename() |
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| 354 | * |
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| 355 | * @codeCoverageIgnore |
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| 356 | * |
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| 357 | * @param string $key Nonce key. |
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| 358 | * |
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| 359 | * @return string |
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| 360 | */ |
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| 361 | protected function nonce_field( $key ) { |
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| 364 | |||
| 365 | /** |
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| 366 | * Featured meta box as seen in the admin. |
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| 367 | * |
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| 368 | * @since 1.0.0 |
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| 369 | * @access public |
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| 370 | * |
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| 371 | * @param object $post Global post object. |
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| 372 | * @param array $featured Array containing featured image count. |
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| 373 | * |
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| 374 | * @throws Exception Medium size image not found. |
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| 375 | * @return void |
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| 376 | */ |
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| 377 | 2 | public function featured_meta_box( $post, $featured ) { |
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| 378 | 2 | $featured_img = $featured['args'][0]; |
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| 379 | 2 | $featured_id = is_null( $featured['args'][1] ) ? 2 : --$featured['args'][1]; |
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| 380 | 2 | $featured_img_full = $featured_img; |
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| 381 | 2 | $featured_img_trimmed = $featured_img; |
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| 382 | |||
| 383 | 2 | if ( ! is_null( $featured_img ) ) { |
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| 384 | 2 | $featured_img_trimmed = $this->separate( $featured_img ); |
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| 385 | 2 | $featured_img_full = $this->separate( $featured_img, 'full' ); |
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| 386 | 2 | } |
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| 387 | |||
| 388 | 2 | $attachment_id = $this->get_image_id( $this->upload_url . $featured_img_full ); |
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| 389 | |||
| 390 | 2 | $thumbnail = $this->get_image_thumb_by_attachment_id( $attachment_id, 'medium' ); |
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| 391 | 2 | if ( empty( $thumbnail ) ) { |
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| 392 | // since medium sized thumbnail image is missing, |
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| 393 | // let's set full image url as thumbnail. |
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| 394 | $thumbnail = $featured_img_full; |
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| 395 | } |
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| 396 | |||
| 397 | // Add a nonce field. |
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| 398 | 2 | echo $this->nonce_field( 'dfi_fimageplug-' . $featured_id ); // WPCS: XSS ok. |
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| 399 | 2 | echo $this->get_featured_box( $featured_img_trimmed, $featured_img, $featured_id, $thumbnail, $post->ID, $attachment_id ); // WPCS: XSS ok. |
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| 400 | 2 | } |
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| 401 | |||
| 402 | /** |
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| 403 | * Returns featured box html content. |
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| 404 | * |
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| 405 | * @since 3.1.0 |
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| 406 | * @access private |
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| 407 | * |
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| 408 | * @param string $featured_img_trimmed Medium sized image. |
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| 409 | * @param string $featured_img Full sized image. |
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| 410 | * @param string $featured_id Featured id number for translation. |
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| 411 | * @param string $thumbnail Thumb sized image. |
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| 412 | * @param int $post_id Post id. |
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| 413 | * @param int $attachment_id Attachment id. |
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| 414 | * |
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| 415 | * @return string Html content |
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| 416 | */ |
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| 417 | 2 | private function get_featured_box( $featured_img_trimmed, $featured_img, $featured_id, $thumbnail, $post_id, $attachment_id ) { |
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| 431 | |||
| 432 | /** |
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| 433 | * Load new featured meta box via ajax. |
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| 434 | * |
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| 435 | * @since 1.0.0 |
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| 436 | * @access public |
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| 437 | * |
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| 438 | * @return void |
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| 439 | */ |
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| 440 | 2 | public function ajax_callback() { |
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| 469 | |||
| 470 | /** |
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| 471 | * Add custom class 'featured-meta-box' to meta box. |
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| 472 | * |
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| 473 | * @since 1.0.0 |
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| 474 | * @access public |
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| 475 | * |
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| 476 | * @see add_metabox_classes |
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| 477 | * |
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| 478 | * @param array $classes Classes to add in the meta box. |
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| 479 | * |
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| 480 | * @return array |
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| 481 | */ |
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| 482 | 1 | public function add_metabox_classes( $classes ) { |
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| 487 | |||
| 488 | /** |
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| 489 | * Add custom fields in media uploader. |
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| 490 | * |
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| 491 | * @since 3.4.0 |
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| 492 | * |
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| 493 | * @param array $form_fields Fields to include in media attachment form. |
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| 494 | * @param array $post Post data. |
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| 495 | * |
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| 496 | * @return array |
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| 497 | */ |
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| 498 | 1 | public function media_attachment_custom_fields( $form_fields, $post ) { |
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| 507 | |||
| 508 | /** |
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| 509 | * Save values of media uploader custom fields. |
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| 510 | * |
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| 511 | * @since 3.4.0 |
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| 512 | * |
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| 513 | * @param array $post Post data for database. |
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| 514 | * @param array $attachment Attachment fields from $_POST form. |
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| 515 | * |
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| 516 | * @return array |
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| 517 | */ |
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| 518 | 1 | public function media_attachment_custom_fields_save( $post, $attachment ) { |
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| 525 | |||
| 526 | /** |
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| 527 | * Update featured images in the database. |
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| 528 | * |
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| 529 | * @since 1.0.0 |
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| 530 | * @access public |
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| 531 | * |
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| 532 | * @see plugin_basename() |
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| 533 | * @see update_post_meta() |
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| 534 | * @see current_user_can() |
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| 535 | * |
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| 536 | * @param int $post_id Current post id. |
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| 537 | * |
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| 538 | * @return bool|null |
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| 539 | */ |
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| 540 | 2 | public function save_meta( $post_id ) { |
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| 557 | |||
| 558 | /** |
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| 559 | * Sanitize array. |
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| 560 | * |
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| 561 | * @since 3.6.0 |
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| 562 | * @access protected |
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| 563 | * |
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| 564 | * @param array $input_array Input array. |
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| 565 | * |
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| 566 | * @return array |
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| 567 | */ |
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| 568 | 1 | protected function sanitize_array( $input_array ) { |
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| 577 | |||
| 578 | /** |
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| 579 | * Verify metabox nonces. |
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| 580 | * |
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| 581 | * @access protected |
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| 582 | * @see wp_verify_nonce() |
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| 583 | * |
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| 584 | * @return bool |
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| 585 | */ |
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| 586 | protected function verify_nonces() { |
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| 604 | |||
| 605 | /** |
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| 606 | * Add update notice. Displayed in plugin update page. |
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| 607 | * |
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| 608 | * @since 2.0.0 |
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| 609 | * @access public |
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| 610 | * |
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| 611 | * @return void |
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| 612 | */ |
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| 613 | 1 | public function update_notice() { |
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| 619 | |||
| 620 | /** |
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| 621 | * Execute query. |
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| 622 | * |
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| 623 | * @param string $query Query to execute. |
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| 624 | * |
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| 625 | * @return null|string |
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| 626 | */ |
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| 627 | 6 | private function execute_query( $query ) { |
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| 630 | |||
| 631 | /** |
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| 632 | * Get attachment id of the image by image url. |
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| 633 | * |
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| 634 | * @since 3.1.7 |
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| 635 | * @access protected |
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| 636 | * @global object $wpdb |
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| 637 | * |
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| 638 | * @param string $image_url URL of an image. |
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| 639 | * |
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| 640 | * @return string |
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| 641 | */ |
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| 642 | 1 | protected function get_attachment_id( $image_url ) { |
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| 645 | |||
| 646 | /** |
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| 647 | * Get image url of the image by attachment id. |
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| 648 | * |
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| 649 | * @since 2.0.0 |
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| 650 | * @access public |
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| 651 | * |
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| 652 | * @see wp_get_attachment_image_src() |
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| 653 | * |
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| 654 | * @param int $attachment_id attachment id of an image. |
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| 655 | * @param string $size size of the image to fetch (thumbnail, medium, full). |
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| 656 | * |
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| 657 | * @return string |
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| 658 | */ |
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| 659 | 1 | public function get_image_url( $attachment_id, $size = 'full' ) { |
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| 664 | |||
| 665 | /** |
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| 666 | * Get image thumbnail url of specific size by image url. |
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| 667 | * |
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| 668 | * @since 2.0.0 |
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| 669 | * @access public |
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| 670 | * |
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| 671 | * @see get_image_id() |
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| 672 | * @see wp_get_attachment_image_src() |
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| 673 | * |
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| 674 | * @param int $attachment_id attachment id of an image. |
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| 675 | * @param string $size size of the image to fetch (thumbnail, medium, full). |
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| 676 | * |
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| 677 | * @return string |
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| 678 | */ |
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| 679 | 1 | public function get_image_thumb_by_attachment_id( $attachment_id, $size = 'thumbnail' ) { |
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| 684 | |||
| 685 | /** |
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| 686 | * Get image thumbnail url of specific size by image url. |
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| 687 | * |
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| 688 | * @since 2.0.0 |
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| 689 | * @access public |
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| 690 | * |
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| 691 | * @see get_image_id() |
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| 692 | * @see wp_get_attachment_image_src() |
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| 693 | * |
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| 694 | * @param string $image_url url of an image. |
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| 695 | * @param string $size size of the image to fetch (thumbnail, medium, full). |
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| 696 | * |
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| 697 | * @return string |
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| 698 | */ |
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| 699 | 1 | public function get_image_thumb( $image_url, $size = 'thumbnail' ) { |
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| 705 | |||
| 706 | /** |
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| 707 | * Gets attachment id from given image url. |
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| 708 | * |
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| 709 | * @param string $image_url url of an image. |
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| 710 | * |
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| 711 | * @since 2.0.0 |
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| 712 | * @access public |
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| 713 | * |
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| 714 | * @return int|null attachment id of an image |
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| 715 | */ |
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| 716 | 5 | public function get_image_id( $image_url ) { |
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| 732 | |||
| 733 | /** |
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| 734 | * Get image title. |
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| 735 | * |
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| 736 | * @since 2.0.0 |
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| 737 | * @access public |
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| 738 | * |
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| 739 | * @param string $image_url URL of an image. |
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| 740 | * |
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| 741 | * @return string |
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| 742 | */ |
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| 743 | 1 | public function get_image_title( $image_url ) { |
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| 746 | |||
| 747 | /** |
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| 748 | * Get image title by id. |
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| 749 | * |
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| 750 | * @since 2.0.0 |
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| 751 | * @access public |
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| 752 | * |
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| 753 | * @param int $attachment_id Attachment id of an image. |
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| 754 | * |
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| 755 | * @return string |
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| 756 | */ |
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| 757 | 1 | public function get_image_title_by_id( $attachment_id ) { |
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| 760 | |||
| 761 | /** |
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| 762 | * Get image caption. |
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| 763 | * |
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| 764 | * @since 2.0.0 |
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| 765 | * @access public |
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| 766 | * |
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| 767 | * @param string $image_url URL of an image. |
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| 768 | * |
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| 769 | * @return string |
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| 770 | */ |
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| 771 | 1 | public function get_image_caption( $image_url ) { |
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| 774 | |||
| 775 | /** |
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| 776 | * Get image caption by id. |
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| 777 | * |
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| 778 | * @since 2.0.0 |
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| 779 | * @access public |
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| 780 | * |
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| 781 | * @param int $attachment_id Attachment id of an image. |
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| 782 | * |
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| 783 | * @return string |
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| 784 | */ |
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| 785 | 1 | public function get_image_caption_by_id( $attachment_id ) { |
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| 788 | |||
| 789 | /** |
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| 790 | * Get image alternate text. |
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| 791 | * |
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| 792 | * @since 2.0.0 |
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| 793 | * @access public |
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| 794 | * |
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| 795 | * @see get_post_meta() |
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| 796 | * |
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| 797 | * @param string $image_url URL of an image. |
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| 798 | * |
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| 799 | * @return string |
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| 800 | */ |
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| 801 | 1 | public function get_image_alt( $image_url ) { |
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| 811 | |||
| 812 | /** |
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| 813 | * Get image alternate text by attachment id. |
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| 814 | * |
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| 815 | * @since 2.0.0 |
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| 816 | * @access public |
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| 817 | * |
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| 818 | * @see get_post_meta() |
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| 819 | * |
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| 820 | * @param int $attachment_id Attachment id of an image. |
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| 821 | * |
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| 822 | * @return string |
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| 823 | */ |
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| 824 | 1 | public function get_image_alt_by_id( $attachment_id ) { |
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| 829 | |||
| 830 | /** |
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| 831 | * Get image description. |
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| 832 | * |
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| 833 | * @since 3.0.0 |
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| 834 | * @access public |
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| 835 | * |
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| 836 | * @param string $image_url URL of an image. |
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| 837 | * |
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| 838 | * @return string |
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| 839 | */ |
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| 840 | 1 | public function get_image_description( $image_url ) { |
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| 843 | |||
| 844 | /** |
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| 845 | * Get image description by id. |
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| 846 | * |
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| 847 | * @since 3.0.0 |
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| 848 | * @access public |
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| 849 | * |
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| 850 | * @param int $attachment_id attachment id of an image. |
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| 851 | * |
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| 852 | * @return string |
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| 853 | */ |
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| 854 | 1 | public function get_image_description_by_id( $attachment_id ) { |
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| 857 | |||
| 858 | /** |
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| 859 | * Get link to image. |
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| 860 | * |
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| 861 | * @since 3.4.0 |
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| 862 | * @access public |
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| 863 | * |
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| 864 | * @param int $attachment_id Attachment id of an image. |
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| 865 | * |
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| 866 | * @return string|null |
||
| 867 | */ |
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| 868 | 1 | public function get_link_to_image( $attachment_id ) { |
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| 871 | |||
| 872 | /** |
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| 873 | * Get all attachment ids of the post. |
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| 874 | * |
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| 875 | * @since 2.0.0 |
||
| 876 | * @access public |
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| 877 | * |
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| 878 | * @see get_post_meta() |
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| 879 | * |
||
| 880 | * @param int $post_id id of the current post. |
||
| 881 | * |
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| 882 | * @return array |
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| 883 | */ |
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| 884 | 2 | public function get_post_attachment_ids( $post_id ) { |
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| 897 | |||
| 898 | /** |
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| 899 | * Get real post id. |
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| 900 | * |
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| 901 | * @since 3.6.0 |
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| 902 | * @access protected |
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| 903 | * |
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| 904 | * @param int|null $post_id Post id. |
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| 905 | * |
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| 906 | * @return int|null |
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| 907 | */ |
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| 908 | 6 | protected function get_real_post_id( $post_id = null ) { |
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| 917 | |||
| 918 | /** |
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| 919 | * Fetches featured image data of nth position. |
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| 920 | * |
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| 921 | * @since 3.0.0 |
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| 922 | * @access public |
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| 923 | * |
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| 924 | * @see get_featured_images() |
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| 925 | * |
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| 926 | * @param int $position Position of the featured image. |
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| 927 | * @param int $post_id Current post id. |
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| 928 | * |
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| 929 | * @return array if found, null otherwise. |
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| 930 | */ |
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| 931 | 2 | public function get_nth_featured_image( $position, $post_id = null ) { |
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| 938 | |||
| 939 | /** |
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| 940 | * Check if the image is attached with the particular post. |
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| 941 | * |
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| 942 | * @since 2.0.0 |
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| 943 | * @access public |
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| 944 | * |
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| 945 | * @see get_post_attachment_ids() |
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| 946 | * |
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| 947 | * @param int $attachment_id Attachment id of an image. |
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| 948 | * @param int $post_id Current post id. |
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| 949 | * |
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| 950 | * @return bool |
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| 951 | */ |
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| 952 | 1 | public function is_attached( $attachment_id, $post_id ) { |
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| 961 | |||
| 962 | /** |
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| 963 | * Retrieve featured images for specific post(s). |
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| 964 | * |
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| 965 | * @since 2.0.0 |
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| 966 | * @access public |
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| 967 | * |
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| 968 | * @see get_post_meta() |
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| 969 | * |
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| 970 | * @param int $post_id id of the current post. |
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| 971 | * |
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| 972 | * @return array |
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| 973 | */ |
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| 974 | 7 | public function get_featured_images( $post_id = null ) { |
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| 1001 | |||
| 1002 | /** |
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| 1003 | * Check to see if the upload url is already available in path. |
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| 1004 | * |
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| 1005 | * @since 3.1.14 |
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| 1006 | * @access protected |
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| 1007 | * |
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| 1008 | * @param string $img Uploaded image. |
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| 1009 | * |
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| 1010 | * @return string |
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| 1011 | */ |
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| 1012 | 2 | protected function get_real_upload_path( $img ) { |
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| 1020 | |||
| 1021 | /** |
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| 1022 | * Retrieve featured images for specific post(s) including the default Featured Image. |
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| 1023 | * |
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| 1024 | * @since 3.1.7 |
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| 1025 | * @access public |
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| 1026 | * |
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| 1027 | * @see $this->get_featured_images() |
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| 1028 | * |
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| 1029 | * @param int $post_id Current post id. |
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| 1030 | * |
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| 1031 | * @return array An array of images or an empty array on failure |
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| 1032 | */ |
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| 1033 | 2 | public function get_all_featured_images( $post_id = null ) { |
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| 1050 | |||
| 1051 | /** |
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| 1052 | * Load the plugin's textdomain hooked to 'plugins_loaded'. |
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| 1053 | * |
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| 1054 | * @since 1.0.0 |
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| 1055 | * @access public |
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| 1056 | * |
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| 1057 | * @see load_plugin_textdomain() |
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| 1058 | * @see plugin_basename() |
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| 1059 | * @action plugins_loaded |
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| 1060 | * |
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| 1061 | * @codeCoverageIgnore |
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| 1062 | * |
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| 1063 | * @return void |
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| 1064 | */ |
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| 1065 | public function load_plugin_textdomain() { |
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| 1072 | } |
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| 1073 | |||
| 1087 |
