| 1 |
<?php |
| 2 |
/** |
| 3 |
* Class LP_Cart |
| 4 |
* |
| 5 |
* Simple Cart object for now. Maybe need to expand later |
| 6 |
* |
| 7 |
* @author ThimPress |
| 8 |
* @package LearnPress/Classes |
| 9 |
* @version 1.0 |
| 10 |
*/ |
| 11 |
|
| 12 |
defined( 'ABSPATH' ) || exit(); |
| 13 |
|
| 14 |
class LP_Cart { |
| 15 |
|
| 16 |
/** |
| 17 |
* Unique instance of LP_Cart |
| 18 |
* |
| 19 |
* @var LP_Cart object |
| 20 |
*/ |
| 21 |
private static $instance = null; |
| 22 |
|
| 23 |
/** |
| 24 |
* Hold the content of the cart |
| 25 |
* |
| 26 |
* @var array |
| 27 |
*/ |
| 28 |
protected $_cart_content = []; |
| 29 |
|
| 30 |
/** |
| 31 |
* Key of cart content stored in session |
| 32 |
* |
| 33 |
* @var string |
| 34 |
*/ |
| 35 |
protected $_cart_session_key = 'cart'; |
| 36 |
|
| 37 |
/** |
| 38 |
* Cart total |
| 39 |
* |
| 40 |
* @var int |
| 41 |
*/ |
| 42 |
public $total = 0; |
| 43 |
|
| 44 |
/** |
| 45 |
* Cart subtotal |
| 46 |
* |
| 47 |
* @var int |
| 48 |
*/ |
| 49 |
public $subtotal = 0; |
| 50 |
|
| 51 |
/** |
| 52 |
* Constructor |
| 53 |
* |
| 54 |
* @param string $key . Added since 3.3.0 |
| 55 |
*/ |
| 56 |
public function __construct( $key = '' ) { |
| 57 |
if ( $key ) { |
| 58 |
$this->_cart_session_key = $key; |
| 59 |
} |
| 60 |
|
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LP_Request::register( 'add-course-to-cart', array( $this, 'add_to_cart' ), 20 ); |
| 62 |
LP_Request::register( 'remove-cart-item', array( $this, 'remove_item' ), 20 ); |
| 63 |
|
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//add_action( 'learn-press/add-to-cart', array( $this, 'calculate_totals' ), 10 ); |
| 65 |
//add_action( 'wp', array( $this, 'maybe_set_cart_cookies' ), 99 ); |
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//add_action( 'shutdown', array( $this, 'maybe_set_cart_cookies' ), 0 ); |
| 67 |
//add_action( 'wp_loaded', array( $this, 'init' ) ); |
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} |
| 69 |
|
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/** |
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* Init cart. |
| 72 |
* Get data from session and put to cart content. |
| 73 |
*/ |
| 74 |
function init() { |
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// Only load on checkout page |
| 76 |
$page_checkout_option = untrailingslashit( get_the_permalink( learn_press_get_page_id( 'checkout' ) ) ); |
| 77 |
$page_checkout_option = str_replace( '/', '\/', $page_checkout_option ); |
| 78 |
$pattern = '/' . $page_checkout_option . '/'; |
| 79 |
if ( ! preg_match( $pattern, LP_Helper::getUrlCurrent() ) ) { |
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return; |
| 81 |
} |
| 82 |
|
| 83 |
//$this->get_cart_from_session(); |
| 84 |
} |
| 85 |
|
| 86 |
/** |
| 87 |
* @deprecated 4.1.7.2 |
| 88 |
*/ |
| 89 |
public function maybe_set_cart_cookies() { |
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|
| 91 |
if ( ! headers_sent()/* && did_action( 'wp_loaded' )*/ ) { |
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// $this->set_cart_cookies( ! $this->is_empty() ); |
| 93 |
} |
| 94 |
} |
| 95 |
|
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/** |
| 97 |
* @deprecated 4.2.1 |
| 98 |
*/ |
| 99 |
private function set_cart_cookies( $set = true ) { |
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_deprecated_function( __METHOD__, '4.2.1' ); |
| 101 |
/*if ( $set ) { |
| 102 |
learn_press_setcookie( 'wordpress_lp_cart', 1 ); |
| 103 |
} elseif ( isset( $_COOKIE['wordpress_lp_cart'] ) ) { |
| 104 |
learn_press_setcookie( 'wordpress_lp_cart', 0, time() - HOUR_IN_SECONDS ); |
| 105 |
} |
| 106 |
|
| 107 |
do_action( 'learn_press_set_cart_cookies', $set );*/ |
| 108 |
} |
| 109 |
|
| 110 |
/** |
| 111 |
* Get data from session |
| 112 |
* |
| 113 |
* @return array |
| 114 |
* @deprecated 4.1.7.3 |
| 115 |
*/ |
| 116 |
public function get_cart_for_session() { |
| 117 |
_deprecated_function( __FUNCTION__, '4.1.7.3', 'get_cart' ); |
| 118 |
$cart_session = array(); |
| 119 |
|
| 120 |
if ( $this->get_cart() ) { |
| 121 |
foreach ( $this->get_cart() as $key => $values ) { |
| 122 |
$cart_session[ $key ] = $values; |
| 123 |
unset( $cart_session[ $key ]['data'] ); |
| 124 |
} |
| 125 |
} |
| 126 |
|
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return $cart_session; |
| 128 |
} |
| 129 |
|
| 130 |
/** |
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* Get cart content. |
| 132 |
* |
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* @return array |
| 134 |
*/ |
| 135 |
public function get_cart(): array { |
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/*if ( ! did_action( 'wp_loaded' ) ) { |
| 137 |
_doing_it_wrong( __FUNCTION__, __( 'Get cart should not be called before the wp_loaded action.', 'learnpress' ), '2.3' ); |
| 138 |
}*/ |
| 139 |
|
| 140 |
/*if ( ! did_action( 'learn_press_cart_loaded_from_session' ) ) { |
| 141 |
return $this->get_cart_from_session(); |
| 142 |
}*/ |
| 143 |
|
| 144 |
return array_filter( (array) $this->_cart_content ); |
| 145 |
} |
| 146 |
|
| 147 |
/** |
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* Add course to cart. |
| 149 |
* |
| 150 |
* @param int $item_id |
| 151 |
* @param int $quantity |
| 152 |
* @param array $item_data |
| 153 |
* |
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* @return string|false |
| 155 |
*/ |
| 156 |
public function add_to_cart( int $item_id = 0, int $quantity = 1, array $item_data = array() ) { |
| 157 |
try { |
| 158 |
$item_type = get_post_type( $item_id ); |
| 159 |
|
| 160 |
if ( ! in_array( $item_type, learn_press_get_item_types_can_purchase() ) ) { |
| 161 |
throw new Exception( 'Item type is invalid!', 'learnpress' ); |
| 162 |
} |
| 163 |
|
| 164 |
switch ( $item_type ) { |
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case LP_COURSE_CPT: |
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$course = learn_press_get_course( $item_id ); |
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|
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if ( ! $course->is_purchasable() ) { |
| 169 |
throw new Exception( __( 'Sorry! This course is not purchasable.', 'learnpress' ) ); |
| 170 |
} |
| 171 |
|
| 172 |
if ( ! $course->is_in_stock() ) { |
| 173 |
throw new Exception( __( 'Sorry! The number of enrolled students has reached its limit', 'learnpress' ) ); |
| 174 |
} |
| 175 |
|
| 176 |
//$item_data['data'] = $course; |
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break; |
| 178 |
default: |
| 179 |
$item_data = apply_filters( 'learnpress/cart/add-item/item_type_' . $item_type, $item_data, $item_id, $quantity ); |
| 180 |
break; |
| 181 |
} |
| 182 |
|
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// $item_data = apply_filters( 'learnpress/cart/item-data', $item_data, $item_id ); |
| 184 |
|
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$cart_id = $this->generate_cart_id( $item_id, $item_data ); |
| 186 |
|
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$this->_cart_content[ $cart_id ] = apply_filters( |
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'learn_press_add_cart_item', |
| 189 |
array_merge( |
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array( |
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'item_id' => $item_id, |
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'quantity' => $quantity, |
| 193 |
//'data' => array(), |
| 194 |
), |
| 195 |
$item_data |
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) |
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); |
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|
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// Update cart to session DB. |
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$this->update_session(); |
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|
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//$this->set_cart_cookies( true ); |
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|
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do_action( 'learn-press/add-to-cart', $item_id, $quantity, $item_data, $cart_id ); |
| 205 |
return $cart_id; |
| 206 |
} catch ( Exception $e ) { |
| 207 |
if ( $e->getMessage() ) { |
| 208 |
learn_press_add_message( $e->getMessage(), 'error' ); |
| 209 |
} |
| 210 |
|
| 211 |
return false; |
| 212 |
} |
| 213 |
} |
| 214 |
|
| 215 |
/** |
| 216 |
* Remove an item from cart |
| 217 |
* |
| 218 |
* @param $item_id |
| 219 |
* |
| 220 |
* @return bool |
| 221 |
*/ |
| 222 |
public function remove_item( $item_id ) { |
| 223 |
if ( isset( $this->_cart_content['items'][ $item_id ] ) ) { |
| 224 |
|
| 225 |
do_action( 'learn_press_remove_cart_item', $item_id, $this ); |
| 226 |
|
| 227 |
unset( $this->_cart_content['items'][ $item_id ] ); |
| 228 |
|
| 229 |
do_action( 'learn_press_cart_item_removed', $item_id, $this ); |
| 230 |
|
| 231 |
$this->update_session(); |
| 232 |
|
| 233 |
return true; |
| 234 |
} |
| 235 |
|
| 236 |
return false; |
| 237 |
} |
| 238 |
|
| 239 |
/** |
| 240 |
* Re-calculate cart totals and update data to session |
| 241 |
* |
| 242 |
* @since 3.0.0 |
| 243 |
* @version 4.0.1 |
| 244 |
*/ |
| 245 |
public function calculate_totals() { |
| 246 |
$data = new stdClass(); |
| 247 |
$total = 0; |
| 248 |
$data->subtotal = $total; |
| 249 |
$data->total = $total; |
| 250 |
$subtotal = $total; |
| 251 |
$this->total = $total; |
| 252 |
$this->subtotal = $total; |
| 253 |
$items = $this->get_cart(); |
| 254 |
|
| 255 |
if ( $items ) { |
| 256 |
foreach ( $items as $cart_id => $item ) { |
| 257 |
$item_type = get_post_type( $item['item_id'] ); |
| 258 |
if ( ! in_array( $item_type, learn_press_get_item_types_can_purchase() ) ) { |
| 259 |
continue; |
| 260 |
} |
| 261 |
|
| 262 |
switch ( $item_type ) { |
| 263 |
case LP_COURSE_CPT: |
| 264 |
$course = learn_press_get_course( $item['item_id'] ); |
| 265 |
$subtotal = $course->get_price() * absint( $item['quantity'] ); |
| 266 |
break; |
| 267 |
default: |
| 268 |
$subtotal = apply_filters( 'learnpress/cart/calculate_sub_total/item_type_' . $item_type, $subtotal, $item ); |
| 269 |
break; |
| 270 |
} |
| 271 |
|
| 272 |
$total = $subtotal; |
| 273 |
|
| 274 |
$data->subtotal += $subtotal; |
| 275 |
$data->total += $total; |
| 276 |
|
| 277 |
// For template old use. |
| 278 |
LearnPress::instance()->cart->subtotal += $subtotal; |
| 279 |
LearnPress::instance()->cart->total += $total; |
| 280 |
} |
| 281 |
} |
| 282 |
|
| 283 |
return apply_filters( 'lp/cart/calculate_total', $data ); |
| 284 |
|
| 285 |
//$this->update_session(); |
| 286 |
} |
| 287 |
|
| 288 |
/** |
| 289 |
* Update cart content to session |
| 290 |
* |
| 291 |
* @since 3.0.0 |
| 292 |
* @version 1.0.1 |
| 293 |
*/ |
| 294 |
public function update_session() { |
| 295 |
//learn_press_session_set( $this->_cart_session_key, $this->get_cart_for_session() ); |
| 296 |
$cart = $this->get_cart(); |
| 297 |
|
| 298 |
// Only save data item_id and quantity. |
| 299 |
/** |
| 300 |
* Current certificate is not compatible with type $data_cart_save, |
| 301 |
* because certificate override hook 'learn-press/review-order/cart-item-product' to set course. |
| 302 |
* Need rewrite certificate to compatible with new cart. |
| 303 |
*/ |
| 304 |
$data_cart_save = array_map( |
| 305 |
function ( $item ) { |
| 306 |
return array( |
| 307 |
'item_id' => $item['item_id'], |
| 308 |
'quantity' => $item['quantity'], |
| 309 |
); |
| 310 |
}, |
| 311 |
$cart |
| 312 |
); |
| 313 |
|
| 314 |
LearnPress::instance()->session->set( $this->_cart_session_key, $cart, true ); |
| 315 |
} |
| 316 |
|
| 317 |
/** |
| 318 |
* Get cart id |
| 319 |
* |
| 320 |
* @return mixed |
| 321 |
* @deprecated 4.2.0 |
| 322 |
*/ |
| 323 |
public function get_cart_id() { |
| 324 |
_deprecated_function( __METHOD__, '4.2.0' ); |
| 325 |
return ! empty( $_SESSION['learn_press_cart']['cart_id'] ) ? $_SESSION['learn_press_cart']['cart_id'] : 0; |
| 326 |
} |
| 327 |
|
| 328 |
/** |
| 329 |
* Get all items from cart. |
| 330 |
* |
| 331 |
* @return array |
| 332 |
*/ |
| 333 |
public function get_items(): array { |
| 334 |
return $this->get_cart(); |
| 335 |
} |
| 336 |
|
| 337 |
/** |
| 338 |
* Load cart content data from session |
| 339 |
* |
| 340 |
* @since 3.0.0 |
| 341 |
* @version 3.0.2 |
| 342 |
* @modify 4.2.0 - tungnx |
| 343 |
*/ |
| 344 |
public function get_cart_from_session() { |
| 345 |
$session_data = LearnPress::instance()->session->get_session_data(); |
| 346 |
$cart = maybe_unserialize( $session_data['cart'] ?? '' ); |
| 347 |
$this->_cart_content = $cart; |
| 348 |
return $this->_cart_content; |
| 349 |
} |
| 350 |
|
| 351 |
/** |
| 352 |
* Get cart sub-total |
| 353 |
* |
| 354 |
* @return mixed |
| 355 |
*/ |
| 356 |
public function get_subtotal() { |
| 357 |
$subtotal = apply_filters( 'learn_press_get_cart_subtotal', learn_press_format_price( $this->subtotal, true ) ); |
| 358 |
|
| 359 |
return apply_filters( 'learn-press/cart-subtotal', $subtotal ); |
| 360 |
} |
| 361 |
|
| 362 |
/** |
| 363 |
* Get cart total |
| 364 |
* |
| 365 |
* @return mixed |
| 366 |
*/ |
| 367 |
public function get_total() { |
| 368 |
$total = apply_filters( 'learn_press_get_cart_total', learn_press_format_price( $this->total, true ) ); |
| 369 |
|
| 370 |
return apply_filters( 'learn-press/cart-total', $total ); |
| 371 |
} |
| 372 |
|
| 373 |
/** |
| 374 |
* Generate unique cart id from course id and data. |
| 375 |
* |
| 376 |
* @param int $course_id |
| 377 |
* @param mixed $data |
| 378 |
* |
| 379 |
* @return string |
| 380 |
*/ |
| 381 |
public function generate_cart_id( $course_id, $data = '' ) { |
| 382 |
$cart_id = array( $course_id ); |
| 383 |
|
| 384 |
if ( is_array( $data ) ) { |
| 385 |
foreach ( $data as $key => $value ) { |
| 386 |
$cart_id[1] = ''; |
| 387 |
|
| 388 |
if ( is_array( $value ) || is_object( $value ) ) { |
| 389 |
$value = http_build_query( $value ); |
| 390 |
} |
| 391 |
|
| 392 |
$cart_id[1] .= trim( $key ) . trim( $value ); |
| 393 |
} |
| 394 |
} |
| 395 |
|
| 396 |
return apply_filters( 'learn-press/cart-id', md5( join( '_', $cart_id ) ), $cart_id, $data ); |
| 397 |
} |
| 398 |
|
| 399 |
/** |
| 400 |
* Return subtotal of cart content |
| 401 |
* |
| 402 |
* @param LP_Course|LP_Certificate $item |
| 403 |
* @param int $quantity |
| 404 |
* |
| 405 |
* @return mixed |
| 406 |
*/ |
| 407 |
public function get_item_subtotal( $item, int $quantity = 1 ) { |
| 408 |
$price = $item->get_price(); |
| 409 |
$row_price = $price * $quantity; |
| 410 |
$course_subtotal = learn_press_format_price( $row_price, true ); |
| 411 |
|
| 412 |
return apply_filters( 'learn-press/cart/item-subtotal', $course_subtotal, $item, $quantity, $this ); |
| 413 |
} |
| 414 |
|
| 415 |
/** |
| 416 |
* Clean all items from cart |
| 417 |
* |
| 418 |
* @return $this |
| 419 |
*/ |
| 420 |
public function empty_cart(): LP_Cart { |
| 421 |
|
| 422 |
do_action( 'learn-press/cart/before-empty' ); |
| 423 |
|
| 424 |
$this->_cart_content = array(); |
| 425 |
$lp_session = LearnPress::instance()->session; |
| 426 |
$lp_session->remove( 'order_awaiting_payment' ); |
| 427 |
$lp_session->remove( 'cart', true ); |
| 428 |
//unset( LearnPress::instance()->session->order_awaiting_payment ); |
| 429 |
//unset( LearnPress::instance()->session->cart ); |
| 430 |
|
| 431 |
do_action( 'learn-press/cart/emptied' ); |
| 432 |
|
| 433 |
return $this; |
| 434 |
} |
| 435 |
|
| 436 |
/** |
| 437 |
* Check if cart is empty or not |
| 438 |
* |
| 439 |
* @return bool |
| 440 |
*/ |
| 441 |
public function is_empty(): bool { |
| 442 |
$this->get_cart_from_session(); |
| 443 |
return sizeof( $this->get_cart() ) === 0; |
| 444 |
} |
| 445 |
|
| 446 |
/** |
| 447 |
* Get checkout url for checkout page |
| 448 |
* Return default url of checkout page |
| 449 |
* |
| 450 |
* @return mixed |
| 451 |
*/ |
| 452 |
public function get_checkout_url() { |
| 453 |
$checkout_url = learn_press_get_page_link( 'checkout' ); |
| 454 |
|
| 455 |
return apply_filters( 'learn_press_get_checkout_url', $checkout_url ); |
| 456 |
} |
| 457 |
|
| 458 |
/** |
| 459 |
* Checks if need to payment |
| 460 |
* Return true if cart total greater than 0 |
| 461 |
* |
| 462 |
* @return mixed |
| 463 |
*/ |
| 464 |
public function needs_payment() { |
| 465 |
$cart_data = $this->calculate_totals(); |
| 466 |
return apply_filters( 'learn_press_cart_needs_payment', $cart_data->total > 0, $this ); |
| 467 |
} |
| 468 |
|
| 469 |
/** |
| 470 |
* Destroy cart instance |
| 471 |
*/ |
| 472 |
public function destroy() { |
| 473 |
|
| 474 |
} |
| 475 |
|
| 476 |
|
| 477 |
/** |
| 478 |
* Get unique instance of LP_Cart object |
| 479 |
* |
| 480 |
* @return LP_Cart |
| 481 |
*/ |
| 482 |
public static function instance() { |
| 483 |
if ( is_null( self::$instance ) ) { |
| 484 |
self::$instance = new self(); |
| 485 |
} |
| 486 |
|
| 487 |
return self::$instance; |
| 488 |
} |
| 489 |
} |
| 490 |
|
