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REST API: Introduce rest_{$this->post_type}_item_schema filter to enable manipulation of schema values.

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register_rest_field can be used to add properties to a schema, but no mechanism existed to alter existing properties like "content".
Running the schema through this filter lets plugins append additional sub-properties to existing schema definitions.

Props luisherranz, TimothyBlynJacobs, swissspidy, westonruter, kadamwhite.
Fixes #47779.



git-svn-id: https://develop.svn.wordpress.org/trunk@47265 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
K. Adam White
2020-02-11 16:26:56 +00:00
parent 72e7742446
commit b6dcb779ed
2 changed files with 74 additions and 0 deletions
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53
tests/phpunit/tests/rest-api/rest-posts-controller.php
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@@ -4841,6 +4841,41 @@ class WP_Test_REST_Posts_Controller extends WP_Test_REST_Post_Type_Controller_Te
$this->assertNull( get_post_type_object( 'test' )->get_rest_controller() );
}
/**
* @ticket 47779
*/
public function test_rest_post_type_item_schema_filter_change_property() {
add_filter( 'rest_post_item_schema', array( $this, 'filter_post_item_schema' ) );
// Re-initialize the controller to cache-bust schemas from prior test runs.
$GLOBALS['wp_rest_server']->override_by_default = true;
$controller = new WP_REST_Posts_Controller( 'post' );
$controller->register_routes();
$GLOBALS['wp_rest_server']->override_by_default = false;
$request = new WP_REST_Request( 'OPTIONS', '/wp/v2/posts' );
$response = rest_get_server()->dispatch( $request );
$data = $response->get_data();
$properties = $data['schema']['properties']['content']['properties'];
$this->assertArrayHasKey( 'new_prop', $properties );
$this->assertEquals( array( 'new_context' ), $properties['new_prop']['context'] );
}
/**
* @ticket 47779
*/
public function test_rest_post_type_item_schema_filter_add_property_triggers_doing_it_wrong() {
add_filter( 'rest_post_item_schema', array( $this, 'filter_post_item_schema_add_property' ) );
$this->setExpectedIncorrectUsage( 'WP_REST_Posts_Controller::get_item_schema' );
// Re-initialize the controller to cache-bust schemas from prior test runs.
$GLOBALS['wp_rest_server']->override_by_default = true;
$controller = new WP_REST_Posts_Controller( 'post' );
$controller->register_routes();
$GLOBALS['wp_rest_server']->override_by_default = false;
}
public function tearDown() {
_unregister_post_type( 'private-post' );
_unregister_post_type( 'youseeme' );
@@ -4868,4 +4903,22 @@ class WP_Test_REST_Posts_Controller extends WP_Test_REST_Post_Type_Controller_Te
'post-my-test-template.php' => 'My Test Template',
);
}
public function filter_post_item_schema( $schema ) {
$schema['properties']['content']['properties']['new_prop'] = array(
'description' => __( 'A new prop added with a the rest_post_item_schema filter.' ),
'type' => 'string',
'context' => array( 'new_context' ),
);
return $schema;
}
public function filter_post_item_schema_add_property( $schema ) {
$schema['properties']['something_entirely_new'] = array(
'description' => __( 'A new prop added with a the rest_post_item_schema filter.' ),
'type' => 'string',
'context' => array( 'new_context' ),
);
return $schema;
}
}