tier-pricing-table / src / Core / Cache.php

Cache.php in Tiered Pricing Table for WooCommerce trunk, at src/Core/Cache.php

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1	<?php namespace TierPricingTable\Core;
2
3	/*
4	* Class Cache
5	*
6	* @package TierPricingTable\Core
7	*/
8
9	use TierPricingTable\TierPricingTablePlugin;
10	use WC_Product;
11	use WC_Product_Variable;
12
13	class Cache {
14
15	use ServiceContainerTrait;
16
17	protected $variableProductsHashes = array();
18
19	const PURGE_CACHE_ACTION = 'tpt_purge_cache';
20	const PRODUCT_DATA_TRANSIENT_KEY = 'tpt_product_data';
21
22	protected $isEnabled = true;
23
24	public function __construct() {
25
26	$this->isEnabled = $this->getContainer()->getSettings()->get( 'cache_enabled', 'yes' ) === 'yes';
27
28	if ( ! $this->isEnabled ) {
29	return;
30	}
31
32	// Store variable products price hashes
33	add_filter( 'woocommerce_get_variation_prices_hash', function ( $hash, WC_Product_Variable $product ) {
34	$pricesDisplayType = ServiceContainer::getInstance()->getSettings()->get( 'tiered_price_at_catalog_type',
35	'range' );
36
37	$hash[] = $product->get_date_modified();
38	$hash[] = $product->get_id();
39
40	if ( ! array_key_exists( $product->get_id(), $this->variableProductsHashes ) ) {
41	$this->variableProductsHashes[ $product->get_id() ] = md5( wp_json_encode( $hash ) . $pricesDisplayType );
42	}
43
44	return $hash;
45	}, 999999, 2 );
46
47	add_action( 'admin_post_' . self::PURGE_CACHE_ACTION, function () {
48
49	$nonce = isset( $_REQUEST['nonce'] ) ? sanitize_text_field( $_REQUEST['nonce'] ) : false;
50
51	if ( current_user_can( 'manage_options' ) && wp_verify_nonce( $nonce, self::PURGE_CACHE_ACTION ) ) {
52
53	ServiceContainer::getInstance()->getAdminNotifier()->flash( __( 'Cache has been purged successfully',
54	'tier-pricing-table' ) );
55
56	$this->purge();
57	}
58
59	return wp_safe_redirect( wp_get_referer() );
60	} );
61	}
62
63	public function isEnabled(): bool {
64	return $this->getContainer()->getSettings()->get( 'cache_enabled', 'yes' ) === 'yes';
65	}
66
67	public function getProductCacheKey( WC_Product $product ) {
68
69	if ( TierPricingTablePlugin::isVariableProductSupported( $product ) ) {
70
71	if ( ! empty( $this->variableProductsHashes[ $product->get_id() ] ) ) {
72	return $this->variableProductsHashes[ $product->get_id() ];
73	}
74	}
75
76	return md5( $product->get_date_modified() . implode( ',', TierPricingTablePlugin::getCurrentUserRoles() ) );
77	}
78
79	public function getProductData( WC_Product $product, $key = null ) {
80	if ( ! $this->isEnabled ) {
81	return false;
82	}
83
84	$productCacheKey = $this->getProductCacheKey( $product );
85
86	$data = (array) get_transient( self::PRODUCT_DATA_TRANSIENT_KEY );
87
88	if ( empty( $data[ $productCacheKey ] ) ) {
89	return false;
90	}
91
92	if ( $key ) {
93	return $data[ $productCacheKey ][ $key ] ?? false;
94	}
95
96	return $data;
97	}
98
99	public function setProductData( WC_Product $product, $key, $value ) {
100
101	if ( ! $this->isEnabled ) {
102	return;
103	}
104
105	$productCacheKey = $this->getProductCacheKey( $product );
106
107	$data = (array) get_transient( self::PRODUCT_DATA_TRANSIENT_KEY );
108
109	if ( $key ) {
110	$data[ $productCacheKey ][ $key ] = $value;
111	} else {
112	$data[ $productCacheKey ] = $value;
113	}
114
115	set_transient( self::PRODUCT_DATA_TRANSIENT_KEY, $data, DAY_IN_SECONDS * 10 + rand( 10, DAY_IN_SECONDS ) );
116	}
117
118	public function purge( $product = null ) {
119
120	if ( $product ) {
121	$this->setProductData( $product, null, null );
122	} else {
123	delete_transient( self::PRODUCT_DATA_TRANSIENT_KEY );
124	}
125	}
126
127	public function getPurgeURL(): string {
128	return add_query_arg( array(
129	'action' => self::PURGE_CACHE_ACTION,
130	'nonce' => wp_create_nonce( self::PURGE_CACHE_ACTION ),
131	), admin_url( 'admin-post.php' ) );
132	}
133	}
134