wp-data-access / WPDataProjects / Data_Dictionary / WPDP_List_Columns_Cache.php

WPDP_List_Columns_Cache.php in WP Data Access – App Builder for Tables, Forms, Charts, Maps & Dashboards 5.5.43, at WPDataProjects/Data_Dictionary/WPDP_List_Columns_Cache.php

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1	<?php
2
3	/**
4	* Suppress "error - 0 - No summary was found for this file" on phpdoc generation
5	*
6	* @package WPDataProjects\Data_Dictionary
7	*/
8
9	namespace WPDataProjects\Data_Dictionary {
10
11	/**
12	* Class WPDP_List_Columns_Cache
13	*
14	* Instances of object WPDP_List_Columns are cached in this class
15	*
16	* @author Peter Schulz
17	* @since 2.0.0
18	*/
19	class WPDP_List_Columns_Cache {
20
21	/**
22	* List of cached instances of WPDP_List_Columns
23	*
24	* @var array
25	*/
26	protected static $cached_list_columns = array();
27
28	/**
29	* Gets an instance of WPDP_List_Columns from cache or creates a new instance
30	*
31	* New instances are added to the cache
32	*
33	* @param string $schema_name Database schema name
34	* @param string $table_name Database table name
35	* @param string $label_type Label type
36	* @param string $setname Options set name
37	*
38	* @return object Handle to WPDP_List_Columns instance
39	*/
40	public static function get_list_columns( $schema_name, $table_name, $label_type, $setname = 'default' ) {
41	$index = "$schema_name.$table_name.$label_type.$setname";
42	if ( ! isset( self::$cached_list_columns[ $index ] ) ) {
43	self::$cached_list_columns[ $index ] = new WPDP_List_Columns( $schema_name, $table_name, $label_type, $setname );
44	}
45
46	return self::$cached_list_columns[ $index ];
47	}
48
49	}
50
51	}
52