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index.php
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class-fs-option-manager.php
522 lines
| 1 | <?php |
| 2 | /** |
| 3 | * @package Freemius |
| 4 | * @copyright Copyright (c) 2015, Freemius, Inc. |
| 5 | * @license https://www.gnu.org/licenses/gpl-3.0.html GNU General Public License Version 3 |
| 6 | * @since 1.0.3 |
| 7 | */ |
| 8 | |
| 9 | if ( ! defined( 'ABSPATH' ) ) { |
| 10 | exit; |
| 11 | } |
| 12 | |
| 13 | /** |
| 14 | * 3-layer lazy options manager. |
| 15 | * layer 3: Memory |
| 16 | * layer 2: Cache (if there's any caching plugin and if WP_FS__DEBUG_SDK is FALSE) |
| 17 | * layer 1: Database (options table). All options stored as one option record in the DB to reduce number of DB |
| 18 | * queries. |
| 19 | * |
| 20 | * If load() is not explicitly called, starts as empty manager. Same thing about saving the data - you have to |
| 21 | * explicitly call store(). |
| 22 | * |
| 23 | * Class Freemius_Option_Manager |
| 24 | */ |
| 25 | class FS_Option_Manager { |
| 26 | /** |
| 27 | * @var string |
| 28 | */ |
| 29 | private $_id; |
| 30 | /** |
| 31 | * @var array|object |
| 32 | */ |
| 33 | private $_options; |
| 34 | /** |
| 35 | * @var FS_Logger |
| 36 | */ |
| 37 | private $_logger; |
| 38 | |
| 39 | /** |
| 40 | * @since 2.0.0 |
| 41 | * @var int The ID of the blog that is associated with the current site level options. |
| 42 | */ |
| 43 | private $_blog_id = 0; |
| 44 | |
| 45 | /** |
| 46 | * @since 2.0.0 |
| 47 | * @var bool |
| 48 | */ |
| 49 | private $_is_network_storage; |
| 50 | |
| 51 | /** |
| 52 | * @var bool|null |
| 53 | */ |
| 54 | private $_autoload; |
| 55 | |
| 56 | /** |
| 57 | * @var array[string]FS_Option_Manager { |
| 58 | * @key string |
| 59 | * @value FS_Option_Manager |
| 60 | * } |
| 61 | */ |
| 62 | private static $_MANAGERS = array(); |
| 63 | |
| 64 | /** |
| 65 | * @author Vova Feldman (@svovaf) |
| 66 | * @since 1.0.3 |
| 67 | * |
| 68 | * @param string $id |
| 69 | * @param bool $load |
| 70 | * @param bool|int $network_level_or_blog_id Since 2.0.0 |
| 71 | * @param bool|null $autoload |
| 72 | */ |
| 73 | private function __construct( |
| 74 | $id, |
| 75 | $load = false, |
| 76 | $network_level_or_blog_id = false, |
| 77 | $autoload = null |
| 78 | ) { |
| 79 | $id = strtolower( $id ); |
| 80 | |
| 81 | $this->_logger = FS_Logger::get_logger( WP_FS__SLUG . '_opt_mngr_' . $id, WP_FS__DEBUG_SDK, WP_FS__ECHO_DEBUG_SDK ); |
| 82 | |
| 83 | $this->_logger->entrance(); |
| 84 | $this->_logger->log( 'id = ' . $id ); |
| 85 | |
| 86 | $this->_id = $id; |
| 87 | |
| 88 | $this->_autoload = $autoload; |
| 89 | |
| 90 | if ( is_multisite() ) { |
| 91 | $this->_is_network_storage = ( true === $network_level_or_blog_id ); |
| 92 | |
| 93 | if ( is_numeric( $network_level_or_blog_id ) ) { |
| 94 | $this->_blog_id = $network_level_or_blog_id; |
| 95 | } |
| 96 | } else { |
| 97 | $this->_is_network_storage = false; |
| 98 | } |
| 99 | |
| 100 | if ( $load ) { |
| 101 | $this->load(); |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * @author Vova Feldman (@svovaf) |
| 107 | * @since 1.0.3 |
| 108 | * |
| 109 | * @param string $id |
| 110 | * @param bool $load |
| 111 | * @param bool|int $network_level_or_blog_id Since 2.0.0 |
| 112 | * @param bool|null $autoload |
| 113 | * |
| 114 | * @return \FS_Option_Manager |
| 115 | */ |
| 116 | static function get_manager( |
| 117 | $id, |
| 118 | $load = false, |
| 119 | $network_level_or_blog_id = false, |
| 120 | $autoload = null |
| 121 | ) { |
| 122 | $key = strtolower( $id ); |
| 123 | |
| 124 | if ( is_multisite() ) { |
| 125 | if ( true === $network_level_or_blog_id ) { |
| 126 | $key .= ':ms'; |
| 127 | } else if ( is_numeric( $network_level_or_blog_id ) && $network_level_or_blog_id > 0 ) { |
| 128 | $key .= ":{$network_level_or_blog_id}"; |
| 129 | } else { |
| 130 | $network_level_or_blog_id = get_current_blog_id(); |
| 131 | |
| 132 | $key .= ":{$network_level_or_blog_id}"; |
| 133 | } |
| 134 | } |
| 135 | |
| 136 | if ( ! isset( self::$_MANAGERS[ $key ] ) ) { |
| 137 | self::$_MANAGERS[ $key ] = new FS_Option_Manager( |
| 138 | $id, |
| 139 | $load, |
| 140 | $network_level_or_blog_id, |
| 141 | $autoload |
| 142 | ); |
| 143 | } // If load required but not yet loaded, load. |
| 144 | else if ( $load && ! self::$_MANAGERS[ $key ]->is_loaded() ) { |
| 145 | self::$_MANAGERS[ $key ]->load(); |
| 146 | } |
| 147 | |
| 148 | return self::$_MANAGERS[ $key ]; |
| 149 | } |
| 150 | |
| 151 | /** |
| 152 | * @author Vova Feldman (@svovaf) |
| 153 | * @since 1.0.3 |
| 154 | * |
| 155 | * @param bool $flush |
| 156 | */ |
| 157 | function load( $flush = false ) { |
| 158 | $this->_logger->entrance(); |
| 159 | |
| 160 | $option_name = $this->get_option_manager_name(); |
| 161 | |
| 162 | if ( $flush || ! isset( $this->_options ) ) { |
| 163 | if ( isset( $this->_options ) ) { |
| 164 | // Clear prev options. |
| 165 | $this->clear(); |
| 166 | } |
| 167 | |
| 168 | $cache_group = $this->get_cache_group(); |
| 169 | |
| 170 | if ( WP_FS__DEBUG_SDK ) { |
| 171 | |
| 172 | // Don't use cache layer in DEBUG mode. |
| 173 | $load_options = empty( $this->_options ); |
| 174 | |
| 175 | } else { |
| 176 | |
| 177 | $this->_options = wp_cache_get( |
| 178 | $option_name, |
| 179 | $cache_group |
| 180 | ); |
| 181 | |
| 182 | $load_options = ( false === $this->_options ); |
| 183 | } |
| 184 | |
| 185 | $cached = true; |
| 186 | |
| 187 | if ( $load_options ) { |
| 188 | if ( $this->_is_network_storage ) { |
| 189 | $this->_options = get_site_option( $option_name ); |
| 190 | } else if ( $this->_blog_id > 0 ) { |
| 191 | $this->_options = get_blog_option( $this->_blog_id, $option_name ); |
| 192 | } else { |
| 193 | $this->_options = get_option( $option_name ); |
| 194 | } |
| 195 | |
| 196 | if ( is_string( $this->_options ) ) { |
| 197 | $this->_options = json_decode( $this->_options ); |
| 198 | } |
| 199 | |
| 200 | // $this->_logger->info('get_option = ' . var_export($this->_options, true)); |
| 201 | |
| 202 | if ( false === $this->_options ) { |
| 203 | $this->clear(); |
| 204 | } |
| 205 | |
| 206 | $cached = false; |
| 207 | } |
| 208 | |
| 209 | if ( ! WP_FS__DEBUG_SDK && ! $cached ) { |
| 210 | // Set non encoded cache. |
| 211 | wp_cache_set( $option_name, $this->_options, $cache_group ); |
| 212 | } |
| 213 | } |
| 214 | } |
| 215 | |
| 216 | /** |
| 217 | * @author Vova Feldman (@svovaf) |
| 218 | * @since 1.0.3 |
| 219 | * |
| 220 | * @return bool |
| 221 | */ |
| 222 | function is_loaded() { |
| 223 | return isset( $this->_options ); |
| 224 | } |
| 225 | |
| 226 | /** |
| 227 | * @author Vova Feldman (@svovaf) |
| 228 | * @since 1.0.3 |
| 229 | * |
| 230 | * @return bool |
| 231 | */ |
| 232 | function is_empty() { |
| 233 | return ( $this->is_loaded() && false === $this->_options ); |
| 234 | } |
| 235 | |
| 236 | /** |
| 237 | * @author Vova Feldman (@svovaf) |
| 238 | * @since 1.0.6 |
| 239 | * |
| 240 | * @param bool $flush |
| 241 | */ |
| 242 | function clear( $flush = false ) { |
| 243 | $this->_logger->entrance(); |
| 244 | |
| 245 | $this->_options = array(); |
| 246 | |
| 247 | if ( $flush ) { |
| 248 | $this->store(); |
| 249 | } |
| 250 | } |
| 251 | |
| 252 | /** |
| 253 | * Delete options manager from DB. |
| 254 | * |
| 255 | * @author Vova Feldman (@svovaf) |
| 256 | * @since 1.0.9 |
| 257 | */ |
| 258 | function delete() { |
| 259 | $option_name = $this->get_option_manager_name(); |
| 260 | |
| 261 | if ( $this->_is_network_storage ) { |
| 262 | delete_site_option( $option_name ); |
| 263 | } else if ( $this->_blog_id > 0 ) { |
| 264 | delete_blog_option( $this->_blog_id, $option_name ); |
| 265 | } else { |
| 266 | delete_option( $option_name ); |
| 267 | } |
| 268 | } |
| 269 | |
| 270 | /** |
| 271 | * @author Vova Feldman (@svovaf) |
| 272 | * @since 1.0.6 |
| 273 | * |
| 274 | * @param string $option |
| 275 | * |
| 276 | * @return bool |
| 277 | */ |
| 278 | function has_option( $option ) { |
| 279 | return array_key_exists( $option, $this->_options ); |
| 280 | } |
| 281 | |
| 282 | /** |
| 283 | * @author Vova Feldman (@svovaf) |
| 284 | * @since 1.0.3 |
| 285 | * |
| 286 | * @param string $option |
| 287 | * @param mixed $default |
| 288 | * |
| 289 | * @return mixed |
| 290 | */ |
| 291 | function get_option( $option, $default = null ) { |
| 292 | $this->_logger->entrance( 'option = ' . $option ); |
| 293 | |
| 294 | if ( ! $this->is_loaded() ) { |
| 295 | $this->load(); |
| 296 | } |
| 297 | |
| 298 | if ( is_array( $this->_options ) ) { |
| 299 | $value = isset( $this->_options[ $option ] ) ? |
| 300 | $this->_options[ $option ] : |
| 301 | $default; |
| 302 | } else if ( is_object( $this->_options ) ) { |
| 303 | $value = isset( $this->_options->{$option} ) ? |
| 304 | $this->_options->{$option} : |
| 305 | $default; |
| 306 | } else { |
| 307 | $value = $default; |
| 308 | } |
| 309 | |
| 310 | /** |
| 311 | * If it's an object, return a clone of the object, otherwise, |
| 312 | * external changes of the object will actually change the value |
| 313 | * of the object in the options manager which may lead to an unexpected |
| 314 | * behaviour and data integrity when a store() call is triggered. |
| 315 | * |
| 316 | * Example: |
| 317 | * $object1 = $options->get_option( 'object1' ); |
| 318 | * $object1->x = 123; |
| 319 | * |
| 320 | * $object2 = $options->get_option( 'object2' ); |
| 321 | * $object2->y = 'dummy'; |
| 322 | * |
| 323 | * $options->set_option( 'object2', $object2, true ); |
| 324 | * |
| 325 | * If we don't return a clone of option 'object1', setting 'object2' |
| 326 | * will also store the updated value of 'object1' which is quite not |
| 327 | * an expected behaviour. |
| 328 | * |
| 329 | * @author Vova Feldman |
| 330 | */ |
| 331 | return is_object( $value ) ? clone $value : $value; |
| 332 | } |
| 333 | |
| 334 | /** |
| 335 | * @author Vova Feldman (@svovaf) |
| 336 | * @since 1.0.3 |
| 337 | * |
| 338 | * @param string $option |
| 339 | * @param mixed $value |
| 340 | * @param bool $flush |
| 341 | */ |
| 342 | function set_option( $option, $value, $flush = false ) { |
| 343 | $this->_logger->entrance( 'option = ' . $option ); |
| 344 | |
| 345 | if ( ! $this->is_loaded() ) { |
| 346 | $this->clear(); |
| 347 | } |
| 348 | |
| 349 | /** |
| 350 | * If it's an object, store a clone of the object, otherwise, |
| 351 | * external changes of the object will actually change the value |
| 352 | * of the object in the options manager which may lead to an unexpected |
| 353 | * behaviour and data integrity when a store() call is triggered. |
| 354 | * |
| 355 | * Example: |
| 356 | * $object1 = new stdClass(); |
| 357 | * $object1->x = 123; |
| 358 | * |
| 359 | * $options->set_option( 'object1', $object1 ); |
| 360 | * |
| 361 | * $object1->x = 456; |
| 362 | * |
| 363 | * $options->set_option( 'object2', $object2, true ); |
| 364 | * |
| 365 | * If we don't set the option as a clone of option 'object1', setting 'object2' |
| 366 | * will also store the updated value of 'object1' ($object1->x = 456 instead of |
| 367 | * $object1->x = 123) which is quite not an expected behaviour. |
| 368 | * |
| 369 | * @author Vova Feldman |
| 370 | */ |
| 371 | $copy = is_object( $value ) ? clone $value : $value; |
| 372 | |
| 373 | if ( is_array( $this->_options ) ) { |
| 374 | $this->_options[ $option ] = $copy; |
| 375 | } else if ( is_object( $this->_options ) ) { |
| 376 | $this->_options->{$option} = $copy; |
| 377 | } |
| 378 | |
| 379 | if ( $flush ) { |
| 380 | $this->store(); |
| 381 | } |
| 382 | } |
| 383 | |
| 384 | /** |
| 385 | * Unset option. |
| 386 | * |
| 387 | * @author Vova Feldman (@svovaf) |
| 388 | * @since 1.0.3 |
| 389 | * |
| 390 | * @param string $option |
| 391 | * @param bool $flush |
| 392 | */ |
| 393 | function unset_option( $option, $flush = false ) { |
| 394 | $this->_logger->entrance( 'option = ' . $option ); |
| 395 | |
| 396 | if ( is_array( $this->_options ) ) { |
| 397 | if ( ! isset( $this->_options[ $option ] ) ) { |
| 398 | return; |
| 399 | } |
| 400 | |
| 401 | unset( $this->_options[ $option ] ); |
| 402 | |
| 403 | } else if ( is_object( $this->_options ) ) { |
| 404 | if ( ! isset( $this->_options->{$option} ) ) { |
| 405 | return; |
| 406 | } |
| 407 | |
| 408 | unset( $this->_options->{$option} ); |
| 409 | } |
| 410 | |
| 411 | if ( $flush ) { |
| 412 | $this->store(); |
| 413 | } |
| 414 | } |
| 415 | |
| 416 | /** |
| 417 | * Dump options to database. |
| 418 | * |
| 419 | * @author Vova Feldman (@svovaf) |
| 420 | * @since 1.0.3 |
| 421 | */ |
| 422 | function store() { |
| 423 | $this->_logger->entrance(); |
| 424 | |
| 425 | $option_name = $this->get_option_manager_name(); |
| 426 | |
| 427 | if ( $this->_logger->is_on() ) { |
| 428 | $this->_logger->info( $option_name . ' = ' . var_export( $this->_options, true ) ); |
| 429 | } |
| 430 | |
| 431 | // Update DB. |
| 432 | if ( $this->_is_network_storage ) { |
| 433 | update_site_option( $option_name, $this->_options ); |
| 434 | } else if ( $this->_blog_id > 0 ) { |
| 435 | update_blog_option( $this->_blog_id, $option_name, $this->_options ); |
| 436 | } else { |
| 437 | update_option( $option_name, $this->_options, $this->_autoload ); |
| 438 | } |
| 439 | |
| 440 | if ( ! WP_FS__DEBUG_SDK ) { |
| 441 | wp_cache_set( $option_name, $this->_options, $this->get_cache_group() ); |
| 442 | } |
| 443 | } |
| 444 | |
| 445 | /** |
| 446 | * Get options keys. |
| 447 | * |
| 448 | * @author Vova Feldman (@svovaf) |
| 449 | * @since 1.0.3 |
| 450 | * |
| 451 | * @return string[] |
| 452 | */ |
| 453 | function get_options_keys() { |
| 454 | if ( is_array( $this->_options ) ) { |
| 455 | return array_keys( $this->_options ); |
| 456 | } else if ( is_object( $this->_options ) ) { |
| 457 | return array_keys( get_object_vars( $this->_options ) ); |
| 458 | } |
| 459 | |
| 460 | return array(); |
| 461 | } |
| 462 | |
| 463 | #-------------------------------------------------------------------------------- |
| 464 | #region Migration |
| 465 | #-------------------------------------------------------------------------------- |
| 466 | |
| 467 | /** |
| 468 | * Migrate options from site level. |
| 469 | * |
| 470 | * @author Vova Feldman (@svovaf) |
| 471 | * @since 2.0.0 |
| 472 | */ |
| 473 | function migrate_to_network() { |
| 474 | $site_options = FS_Option_Manager::get_manager($this->_id, true, false); |
| 475 | |
| 476 | $options = is_object( $site_options->_options ) ? |
| 477 | get_object_vars( $site_options->_options ) : |
| 478 | $site_options->_options; |
| 479 | |
| 480 | if ( ! empty( $options ) ) { |
| 481 | foreach ( $options as $key => $val ) { |
| 482 | $this->set_option( $key, $val, false ); |
| 483 | } |
| 484 | |
| 485 | $this->store(); |
| 486 | } |
| 487 | } |
| 488 | |
| 489 | #endregion |
| 490 | |
| 491 | #-------------------------------------------------------------------------------- |
| 492 | #region Helper Methods |
| 493 | #-------------------------------------------------------------------------------- |
| 494 | |
| 495 | /** |
| 496 | * @return string |
| 497 | */ |
| 498 | private function get_option_manager_name() { |
| 499 | return $this->_id; |
| 500 | } |
| 501 | |
| 502 | /** |
| 503 | * @author Vova Feldman (@svovaf) |
| 504 | * @since 2.0.0 |
| 505 | * |
| 506 | * @return string |
| 507 | */ |
| 508 | private function get_cache_group() { |
| 509 | $group = WP_FS__SLUG; |
| 510 | |
| 511 | if ( $this->_is_network_storage ) { |
| 512 | $group .= '_ms'; |
| 513 | } else if ( $this->_blog_id > 0 ) { |
| 514 | $group .= "_s{$this->_blog_id}"; |
| 515 | } |
| 516 | |
| 517 | return $group; |
| 518 | } |
| 519 | |
| 520 | #endregion |
| 521 | } |
| 522 |