WP_Customize_Manager::handle_changeset_trash_request()

Compatibility

Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.

Performance profile

How much work a call to WP_Customize_Manager::handle_changeset_trash_request() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.

Cost class

Heavy

Reaches the database via get_post().

Scaling

Constant

No loop in the body: the same number of instructions runs whatever you pass in.

Instructions

25–97

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 115.

Plugin surface

None

Nothing here hands control to plugin code.

Called by

0

Nothing in core calls this; the cost is only what you spend yourself.

What it touches

• hookthird-party callbacksdo_action()one call below WP_Customize_Manager::handle_changeset_trash_request()
• querycontent queryget_post()one call below WP_Customize_Manager::handle_changeset_trash_request()

Further down the call graph this can also reach option, cache, serialize and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.

What one call costs · 152 distinct outcomes

One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_Customize_Manager::handle_changeset_trash_request() can have, taken from its control-flow graph on PHP 8.5.

Uses · 14

• is_user_logged_in()Determines whether the current visitor is a logged in user.
• wp_send_json_error()Sends a JSON response back to an Ajax request, indicating failure.
• check_ajax_referer()Verifies the Ajax request to prevent processing requests external of the blog.
• __()Retrieves the translation of $text.
• current_user_can()Returns whether the current user has the specified capability.
• get_post_type_object()Retrieves a post type object by name.
• wp_check_post_lock()Determines whether the post is currently being edited by another user.
• get_current_user_id()Gets the current user's ID.
• get_post_status()Retrieves the post status based on the post ID.
• wp_send_json_success()Sends a JSON response back to an Ajax request, indicating success.
• WP_Customize_Manager::is_preview()Determines whether it is a theme preview or not.
• WP_Customize_Manager::changeset_post_id()Gets the changeset post ID for the loaded changeset.

Source code

View on Trac ↗View on GitHub ↗

3138	public function handle_changeset_trash_request() {3139		if ( ! is_user_logged_in() ) {3140			wp_send_json_error( 'unauthenticated' );3141		}3142 3143		if ( ! $this->is_preview() ) {3144			wp_send_json_error( 'not_preview' );3145		}3146 3147		if ( ! check_ajax_referer( 'trash_customize_changeset', 'nonce', false ) ) {3148			wp_send_json_error(3149				array(3150					'code'    => 'invalid_nonce',3151					'message' => __( 'There was an authentication problem. Please reload and try again.' ),3152				)3153			);3154		}3155 3156		$changeset_post_id = $this->changeset_post_id();3157 3158		if ( ! $changeset_post_id ) {3159			wp_send_json_error(3160				array(3161					'message' => __( 'No changes saved yet, so there is nothing to trash.' ),3162					'code'    => 'non_existent_changeset',3163				)3164			);3165			return;3166		}3167 3168		if ( $changeset_post_id ) {3169			if ( ! current_user_can( get_post_type_object( 'customize_changeset' )->cap->delete_post, $changeset_post_id ) ) {3170				wp_send_json_error(3171					array(3172						'code'    => 'changeset_trash_unauthorized',3173						'message' => __( 'Unable to trash changes.' ),3174					)3175				);3176			}3177 3178			$lock_user = (int) wp_check_post_lock( $changeset_post_id );3179 3180			if ( $lock_user && get_current_user_id() !== $lock_user ) {3181				wp_send_json_error(3182					array(3183						'code'     => 'changeset_locked',3184						'message'  => __( 'Changeset is being edited by other user.' ),3185						'lockUser' => $this->get_lock_user_data( $lock_user ),3186					)3187				);3188			}3189		}3190 3191		if ( 'trash' === get_post_status( $changeset_post_id ) ) {3192			wp_send_json_error(3193				array(3194					'message' => __( 'Changes have already been trashed.' ),3195					'code'    => 'changeset_already_trashed',3196				)3197			);3198			return;3199		}3200 3201		$r = $this->trash_changeset_post( $changeset_post_id );3202		if ( ! ( $r instanceof WP_Post ) ) {3203			wp_send_json_error(3204				array(3205					'code'    => 'changeset_trash_failure',3206					'message' => __( 'Unable to trash changes.' ),3207				)3208			);3209		}3210 3211		wp_send_json_success(3212			array(3213				'message' => __( 'Changes trashed successfully.' ),3214			)3215		);3216	}

Changelog

Introduced in 4.9.0. Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 6.8.8 tag, from src/wp-includes/class-wp-customize-manager.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

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