Pink-Crab /
Perique-Ajax
| 1 | <?php |
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| 2 | |||
| 3 | declare(strict_types=1); |
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| 4 | |||
| 5 | /** |
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| 6 | * Ajax Dispatcher Middleware |
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| 7 | * |
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| 8 | * @since 0.1.0 |
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| 9 | * @author Glynn Quelch <[email protected]> |
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| 10 | * @license http://www.opensource.org/licenses/mit-license.html MIT License |
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| 11 | * @package PinkCrab\Ajax |
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| 12 | */ |
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| 13 | |||
| 14 | namespace PinkCrab\Ajax\Module; |
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| 15 | |||
| 16 | use PinkCrab\Ajax\Ajax; |
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| 17 | use PinkCrab\Ajax\Dispatcher\Ajax_Dispatcher; |
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| 18 | use PinkCrab\Perique\Interfaces\Registration_Middleware; |
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| 19 | |||
| 20 | |||
| 21 | class Ajax_Middleware implements Registration_Middleware { |
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| 22 | |||
| 23 | public Ajax_Dispatcher $dispatcher; |
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| 24 | |||
| 25 | public function __construct( Ajax_Dispatcher $dispatcher ) { |
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| 26 | $this->dispatcher = $dispatcher; |
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| 27 | } |
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| 28 | |||
| 29 | /** |
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| 30 | * Add all valid ajax calls to the dispatcher. |
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| 31 | * |
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| 32 | * @param object $class_instance |
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| 33 | * @return object |
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| 34 | */ |
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| 35 | public function process( object $class_instance ): object { |
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| 36 | if ( is_a( $class_instance, Ajax::class ) |
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| 37 | && is_admin() |
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| 38 | && wp_doing_ajax() |
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| 39 | ) { |
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| 40 | $this->dispatcher->add_ajax_call( $class_instance ); |
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| 41 | } |
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| 42 | return $class_instance; |
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| 43 | } |
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| 44 | |||
| 45 | public function setup(): void { |
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| 46 | /*noOp*/ |
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| 47 | } |
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| 48 | |||
| 49 | /** |
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| 50 | * Register all ajax calls. |
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| 51 | * |
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| 52 | * @return void |
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| 53 | */ |
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| 54 | public function tear_down(): void { |
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| 55 | $this->dispatcher->execute(); |
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| 56 | } |
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| 57 | } |
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| 58 |
Let?s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let?s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: