WP_Customize_Manager::establish_loaded_changeset()

Description

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::establish_loaded_changeset() 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

Trivial

Touches nothing outside its own arguments.

Scaling

Constant

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

Instructions

7–57

Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 57.

Plugin surface

None

Nothing here hands control to plugin code.

Called by

1

1 place in core call this, so the cost is paid more often than your own code shows.

What one call costs · 18 distinct outcomes

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

Uses · 9

• get_post_stati()Gets a list of post statuses.
• wp_is_uuid()Validates that a UUID is valid.
• wp_generate_uuid4()Generates a random UUID (version 4).
• is_admin()Determines whether the current request is for an administrative interface page.
• WP_Customize_Manager::branching()Whether the changeset branching is allowed.
• WP_Customize_Manager::is_theme_active()Checks if the current theme is active.
• WP_Customize_Manager::get_changeset_posts()Gets changeset posts.
• WP_Customize_Manager::set_changeset_lock()Marks the changeset post as being currently edited by the current user.
• WP_Customize_Manager::changeset_post_id()Gets the changeset post ID for the loaded changeset.

Used by · 1

• WP_Customize_Manager::changeset_uuid()Gets the changeset UUID.

Source code

View on Trac ↗View on GitHub ↗

624	public function establish_loaded_changeset() {625		global $pagenow;626 627		if ( empty( $this->_changeset_uuid ) ) {628			$changeset_uuid = null;629 630			if ( ! $this->branching() && $this->is_theme_active() ) {631				$unpublished_changeset_posts = $this->get_changeset_posts(632					array(633						'post_status'               => array_diff( get_post_stati(), array( 'auto-draft', 'publish', 'trash', 'inherit', 'private' ) ),634						'exclude_restore_dismissed' => false,635						'author'                    => 'any',636						'posts_per_page'            => 1,637						'order'                     => 'DESC',638						'orderby'                   => 'date',639					)640				);641				$unpublished_changeset_post  = array_shift( $unpublished_changeset_posts );642				if ( ! empty( $unpublished_changeset_post ) && wp_is_uuid( $unpublished_changeset_post->post_name ) ) {643					$changeset_uuid = $unpublished_changeset_post->post_name;644				}645			}646 647			// If no changeset UUID has been set yet, then generate a new one.648			if ( empty( $changeset_uuid ) ) {649				$changeset_uuid = wp_generate_uuid4();650			}651 652			$this->_changeset_uuid = $changeset_uuid;653		}654 655		if ( is_admin() && 'customize.php' === $pagenow ) {656			$this->set_changeset_lock( $this->changeset_post_id() );657		}658	}

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 6.9.7 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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