booking / includes / _capacity / wpbc_cache.php

wpbc_cache.php in Booking Calendar 11.4, at includes/_capacity/wpbc_cache.php

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1	<?php
2
3	if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly
4
5
6	global $wpbc_global_cache; // FixIn: 9.7.3.14.
7	$wpbc_global_cache = array();
8
9	// GET Saved request ---------------------------------------------------------------------------------------------------
10
11	/**
12	* GET saved cache request result, if exists otherwise return null
13	*
14	* @param string $function_name 'wpbc__sql__get_booking_dates' - name of function, where saved DB request
15	* @param string\|array $params [ array with parameters in this function, that saved ]
16	*
17	* @return array\|mixed\|object\|null if not saved previously then returned null
18	*/
19	function wpbc_cache__get( $function_name, $params ){
20
21	// return null; // Stop caching hack
22
23	global $wpbc_global_cache;
24
25	if ( ! is_serialized( $params ) ) {
26	$params_cache = maybe_serialize( $params );
27	} else {
28	$params_cache = $params;
29	}
30
31	if (
32	( isset( $wpbc_global_cache[ $function_name ] ) )
33	&& ( isset( $wpbc_global_cache[ $function_name ][ $params_cache ] ) )
34	){
35
36	//return $wpbc_global_cache[ $function_name ][ $params_cache ];
37
38	// CLONING array of objects
39	$clone_array_of_objects = wpbc_clone_array_of_objects( $wpbc_global_cache[ $function_name ][ $params_cache ] );
40
41	return $clone_array_of_objects;
42	}
43
44	return null;
45	}
46
47
48	// SAVE ----------------------------------------------------------------------------------------------------------------
49
50
51	/**
52	* SAVE request result to CACHE var
53	*
54	* @param string $function_name 'wpbc__sql__get_booking_dates' - name of function, where saved DB request
55	* @param string\|array $params [ array with parameters in this function, that saved ]
56	* @param mixed $value_to_save value to save -- usually it's result from DB
57	*
58	* @return mixed return CLONED $value_to_save
59	*/
60	function wpbc_cache__save( $function_name, $params, $value_to_save ){
61
62	global $wpbc_global_cache;
63
64
65	if ( ! is_serialized( $params ) ) {
66	$params_cache = maybe_serialize( $params );
67	} else {
68	$params_cache = $params;
69	}
70
71
72	if ( ! isset( $wpbc_global_cache[ $function_name ] ) ) {
73	$wpbc_global_cache[ $function_name ] = array();
74	}
75
76	//$wpbc_global_cache[ $function_name ][ $params_cache ] = $value_to_save;
77
78	// CLONING array of objects
79	$wpbc_global_cache[ $function_name ][ $params_cache ] = wpbc_clone_array_of_objects( $value_to_save );
80
81	return $wpbc_global_cache[ $function_name ][ $params_cache ];
82	}
83
84
85
86
87
88	/**
89	* Clone array of Objects
90	* Return independent array instances, instead of reference to previous objects.
91	* Useful, if we do not need to apply changes in original array
92	*
93	* @param array\|object\|mixed $object_arr
94	*
95	* @return array\|object\|mixed
96	*
97	*
98	* CLONING tips...
99	*
100	We clone array of booking Objects, because later we make manipulations with some properties, e.g. unset()
101	for example on this line:
102	unset( $this_date_bookings[ $booked_times__key ]->form ); // Hide booking details
103
104	and for having (not changed Cache object from DB $wpbc_global_cache['wpbc__sql__get_booking_dates'][ $params_cache ] )
105	During loading bookings in wpbc_get__booked_dates__per_resources__arr(...)
106
107	we need to clone each such object, otherwise if we change something in this variable, it will be changed
108	in cache $wpbc_global_cache['wpbc__sql__get_booking_dates'][ $params_cache ] ), as well
109
110	Otherwise, if we will not clone and use this, then we do not need to unset some properties:
111
112	$this_date_bookings = $booked_dates__per_resources__arr[ $my_day_tag ][ $resource_id ];
113	v.s.
114	$this_date_bookings = array_map(
115	function ( $object ) { return clone $object; }
116	, $booked_dates__per_resources__arr[ $my_day_tag ][ $resource_id ]
117	);
118
119	*/
120	function wpbc_clone_array_of_objects( $object_arr ){
121
122	$cloned_result = false;
123
124	if ( is_array( $object_arr ) ) {
125
126	$cloned_result = array_map(
127	function ( $object ) {
128	return ( ( is_object( $object ) ) ? ( clone $object ) : $object );
129	}
130	, $object_arr
131	);
132
133	} else if ( is_object( $object_arr ) ) {
134
135	$cloned_result = ( clone $object_arr );
136
137	} else {
138	$cloned_result = $object_arr;
139	}
140
141	return $cloned_result;
142	}
143