WP_REST_Global_Styles_Controller::prepare_item_for_database( WP_REST_Request $request ): stdClass|WP_Error
- Since
- 5.9.0, 6.2.0, 6.6.0
- Source
wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php:239
Compatibility
- WordPress
- since 6.6.0
- PHP
- 7.4–8.6-dev
- 6.7.7
- 6.8.8
- 6.9.7
- 7.0.4
- 7.1.0
Present in every tracked release (6.7.7 to 7.1.0), and compiles on PHP 7.4 through 8.6-dev.
Parameters
$requestWP_REST_Request- Request object.
Return value
stdClass|WP_Error- Prepared item on success. WP_Error on when the custom CSS is not valid.
Performance profile
How much work a call to WP_REST_Global_Styles_Controller::prepare_item_for_database() does, and what it touches: the algorithmic scaling, the Zend instruction count per call across PHP versions, the hooks it hands control to, and the core code that calls it. Measured from the compiled opcodes, not a stopwatch, so every number is identical on any machine running the same PHP version, and every function in core is ranked by cost.
- Cost class
- Heavy
- Scaling
- Constant
- Instructions
- 22–92
- Plugin surface
- None
- Called by
- 0
Reaches the database via get_post().
No loop in the body: the same number of instructions runs whatever you pass in.
Executed per call on PHP 8.5, depending on the branch taken. The body compiles to 106.
Nothing here hands control to plugin code.
Nothing in core calls this; the cost is only what you spend yourself.
What it touches
- querycontent query
get_post()called directly - serializeserialisation
json_decode()called directly - hookthird-party callbacks
do_action()one call below WP_REST_Global_Styles_Controller::prepare_item_for_database()
Further down the call graph this can also reach option, cache and transient. Those are the worst case, several calls deep and usually down an error path, not what a normal call pays.
What one call costs · 8 distinct outcomes
One number would be a lie: the work depends on which branch runs. These are every distinct cost WP_REST_Global_Styles_Controller::prepare_item_for_database() can have, taken from its control-flow graph on PHP 8.5.
| When | Instructions | Calls it makes |
|---|---|---|
!isset($request) | 22–32 | get_post() |
!isset($request) | 33–47 | get_post(), json_decode(), json_last_error() |
isset($request) && isset($value) && is_wp_error() | 35–37 | get_post(), ->validate_custom_css(), is_wp_error() |
isset($request) | 46–66 | get_post(), ::WP_Theme_JSON_Resolver(), wp_register_block_style_variations_from_theme_json_partials(), wp_json_encode() |
isset($request) && isset($value) && is_wp_error() | 46–52 | get_post(), json_decode(), json_last_error(), ->validate_custom_css(), is_wp_error() |
isset($request) | 57–81 | get_post(), json_decode(), json_last_error(), ::WP_Theme_JSON_Resolver(), wp_register_block_style_variations_from_theme_json_partials(), wp_json_encode() |
isset($request) && isset($value) && !is_wp_error() | 62–77 | get_post(), ->validate_custom_css(), is_wp_error(), ::WP_Theme_JSON_Resolver(), wp_register_block_style_variations_from_theme_json_partials(), wp_json_encode() |
isset($request) && isset($value) && !is_wp_error() | 73–92 | get_post(), json_decode(), json_last_error(), ->validate_custom_css(), is_wp_error(), ::WP_Theme_JSON_Resolver(), wp_register_block_style_variations_from_theme_json_partials(), wp_json_encode() |
Across PHP versions
Compiles the same on PHP 7.4, 8.1, 8.2, 8.3, 8.4, 8.5 and 8.6-dev: 106 instructions, 22–92 executed per call, 15 branches. The work does not change between versions.
An instruction is not a fixed amount of time, so a matching count is not necessarily the same speed; what it rules out is a difference in the work itself.
Uses · 7
- get_post()Retrieves post data given a post ID or post object.
- is_wp_error()Checks whether the given variable is a WordPress Error.
- wp_register_block_style_variations_from_theme_json_partials()Registers block style variations read in from theme.json partials.
- wp_json_encode()Encodes a variable into JSON, with some confidence checks.
- stdClass::__construct()
- WP_REST_Global_Styles_Controller::validate_custom_css()Validate style.css as valid CSS.
- WP_Theme_JSON_Resolver::get_style_variations()Returns the style variations defined by the theme.
Source code
protected function prepare_item_for_database( $request ) { $changes = new stdClass(); $changes->ID = $request['id']; $post = get_post( $request['id'] ); $existing_config = array(); if ( $post ) { $existing_config = json_decode( $post->post_content, true ); $json_decoding_error = json_last_error(); if ( JSON_ERROR_NONE !== $json_decoding_error || ! isset( $existing_config['isGlobalStylesUserThemeJSON'] ) || ! $existing_config['isGlobalStylesUserThemeJSON'] ) { $existing_config = array(); } } if ( isset( $request['styles'] ) || isset( $request['settings'] ) ) { $config = array(); if ( isset( $request['styles'] ) ) { if ( isset( $request['styles']['css'] ) ) { $css_validation_result = $this->validate_custom_css( $request['styles']['css'] ); if ( is_wp_error( $css_validation_result ) ) { return $css_validation_result; } } $config['styles'] = $request['styles']; } elseif ( isset( $existing_config['styles'] ) ) { $config['styles'] = $existing_config['styles']; } // Register theme-defined variations e.g. from block style variation partials under `/styles`. $variations = WP_Theme_JSON_Resolver::get_style_variations( 'block' ); wp_register_block_style_variations_from_theme_json_partials( $variations ); if ( isset( $request['settings'] ) ) { $config['settings'] = $request['settings']; } elseif ( isset( $existing_config['settings'] ) ) { $config['settings'] = $existing_config['settings']; } $config['isGlobalStylesUserThemeJSON'] = true; $config['version'] = WP_Theme_JSON::LATEST_SCHEMA; $changes->post_content = wp_json_encode( $config ); } // Post title. if ( isset( $request['title'] ) ) { if ( is_string( $request['title'] ) ) { $changes->post_title = $request['title']; } elseif ( ! empty( $request['title']['raw'] ) ) { $changes->post_title = $request['title']['raw']; } } return $changes; }Changelog
Introduced in 5.9.0. Unchanged from 6.7.7 through 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/rest-api/endpoints/class-wp-rest-global-styles-controller.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it. - Corrections
- Something wrong on this page? Report it and it gets fixed in the next regeneration.