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<?php |
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|
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if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly |
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|
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global $wpbc_global_cache; // FixIn: 9.7.3.14. |
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$wpbc_global_cache = array(); |
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|
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// GET Saved request --------------------------------------------------------------------------------------------------- |
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|
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/** |
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* GET saved cache request result, if exists otherwise return null |
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* |
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* @param string $function_name 'wpbc__sql__get_booking_dates' - name of function, where saved DB request |
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* @param string|array $params [ array with parameters in this function, that saved ] |
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* |
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* @return array|mixed|object|null if not saved previously then returned null |
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*/ |
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function wpbc_cache__get( $function_name, $params ){ |
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|
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// return null; // Stop caching hack |
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|
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global $wpbc_global_cache; |
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|
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if ( ! is_serialized( $params ) ) { |
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$params_cache = maybe_serialize( $params ); |
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} else { |
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$params_cache = $params; |
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} |
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|
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if ( |
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( isset( $wpbc_global_cache[ $function_name ] ) ) |
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&& ( isset( $wpbc_global_cache[ $function_name ][ $params_cache ] ) ) |
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){ |
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|
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//return $wpbc_global_cache[ $function_name ][ $params_cache ]; |
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|
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// CLONING array of objects |
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$clone_array_of_objects = wpbc_clone_array_of_objects( $wpbc_global_cache[ $function_name ][ $params_cache ] ); |
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|
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return $clone_array_of_objects; |
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} |
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|
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return null; |
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} |
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|
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|
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// SAVE ---------------------------------------------------------------------------------------------------------------- |
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|
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|
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/** |
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* SAVE request result to CACHE var |
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* |
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* @param string $function_name 'wpbc__sql__get_booking_dates' - name of function, where saved DB request |
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* @param string|array $params [ array with parameters in this function, that saved ] |
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* @param mixed $value_to_save value to save -- usually it's result from DB |
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* |
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* @return mixed return CLONED $value_to_save |
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*/ |
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function wpbc_cache__save( $function_name, $params, $value_to_save ){ |
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|
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global $wpbc_global_cache; |
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|
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|
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if ( ! is_serialized( $params ) ) { |
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$params_cache = maybe_serialize( $params ); |
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} else { |
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$params_cache = $params; |
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} |
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|
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|
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if ( ! isset( $wpbc_global_cache[ $function_name ] ) ) { |
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$wpbc_global_cache[ $function_name ] = array(); |
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} |
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|
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//$wpbc_global_cache[ $function_name ][ $params_cache ] = $value_to_save; |
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|
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// CLONING array of objects |
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$wpbc_global_cache[ $function_name ][ $params_cache ] = wpbc_clone_array_of_objects( $value_to_save ); |
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|
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return $wpbc_global_cache[ $function_name ][ $params_cache ]; |
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} |
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|
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|
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/** |
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* Clear all request-local cached results for one function namespace. |
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* |
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* Availability validation uses this immediately before and after a protected |
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* booking save so a result loaded earlier in the request cannot outlive the |
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* database state that was serialized by the booking availability guard. |
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* |
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* @param string $function_name Function cache namespace to clear. |
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* |
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* @return void |
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*/ |
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function wpbc_cache__clear( $function_name ) { |
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|
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global $wpbc_global_cache; |
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|
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if ( ! is_array( $wpbc_global_cache ) || ! isset( $wpbc_global_cache[ $function_name ] ) ) { |
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return; |
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} |
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|
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unset( $wpbc_global_cache[ $function_name ] ); |
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} |
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|
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|
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|
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/** |
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* Clone array of Objects |
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* Return independent array instances, instead of reference to previous objects. |
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* Useful, if we do not need to apply changes in original array |
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* |
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* @param array|object|mixed $object_arr |
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* |
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* @return array|object|mixed |
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* |
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* |
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* CLONING tips... |
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* |
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We clone array of booking Objects, because later we make manipulations with some properties, e.g. unset() |
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for example on this line: |
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unset( $this_date_bookings[ $booked_times__key ]->form ); // Hide booking details |
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|
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and for having (not changed Cache object from DB $wpbc_global_cache['wpbc__sql__get_booking_dates'][ $params_cache ] ) |
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During loading bookings in wpbc_get__booked_dates__per_resources__arr(...) |
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|
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we need to clone each such object, otherwise if we change something in this variable, it will be changed |
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in cache $wpbc_global_cache['wpbc__sql__get_booking_dates'][ $params_cache ] ), as well |
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|
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Otherwise, if we will not clone and use this, then we do not need to unset some properties: |
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|
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$this_date_bookings = $booked_dates__per_resources__arr[ $my_day_tag ][ $resource_id ]; |
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v.s. |
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$this_date_bookings = array_map( |
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function ( $object ) { return clone $object; } |
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, $booked_dates__per_resources__arr[ $my_day_tag ][ $resource_id ] |
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); |
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|
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*/ |
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function wpbc_clone_array_of_objects( $object_arr ){ |
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|
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$cloned_result = false; |
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|
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if ( is_array( $object_arr ) ) { |
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|
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$cloned_result = array_map( |
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function ( $object ) { |
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return ( ( is_object( $object ) ) ? ( clone $object ) : $object ); |
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} |
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, $object_arr |
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); |
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|
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} else if ( is_object( $object_arr ) ) { |
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|
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$cloned_result = ( clone $object_arr ); |
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} else { |
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$cloned_result = $object_arr; |
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} |
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|
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return $cloned_result; |
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} |
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