87 lines
2.4 KiB
PHP
87 lines
2.4 KiB
PHP
<?php
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/**
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* WordPress Coding Standard.
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*
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* @package WPCS\WordPressCodingStandards
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* @link https://github.com/WordPress/WordPress-Coding-Standards
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* @license https://opensource.org/licenses/MIT MIT
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*/
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namespace WordPressCS\WordPress\Sniffs\DB;
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use WordPressCS\WordPress\AbstractArrayAssignmentRestrictionsSniff;
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/**
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* Flag potentially slow queries.
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*
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* @link https://vip.wordpress.com/documentation/vip-go/code-review-blockers-warnings-notices/#uncached-pageload
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*
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* @package WPCS\WordPressCodingStandards
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*
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* @since 0.3.0
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* @since 0.12.0 Introduced new and more intuitively named 'slow query' whitelist
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* comment, replacing the 'tax_query' whitelist comment which is now
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* deprecated.
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* @since 0.13.0 Class name changed: this class is now namespaced.
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* @since 1.0.0 This sniff has been moved from the `VIP` category to the `DB` category.
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*/
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class SlowDBQuerySniff extends AbstractArrayAssignmentRestrictionsSniff {
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/**
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* Groups of variables to restrict.
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*
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* @return array
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*/
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public function getGroups() {
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return array(
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'slow_db_query' => array(
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'type' => 'warning',
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'message' => 'Detected usage of %s, possible slow query.',
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'keys' => array(
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'tax_query',
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'meta_query',
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'meta_key',
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'meta_value',
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),
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),
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);
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}
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/**
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* Processes this test, when one of its tokens is encountered.
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*
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* @since 0.10.0
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*
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* @param int $stackPtr The position of the current token in the stack.
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*
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* @return int|void Integer stack pointer to skip forward or void to continue
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* normal file processing.
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*/
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public function process_token( $stackPtr ) {
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if ( $this->has_whitelist_comment( 'slow query', $stackPtr ) ) {
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return;
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} elseif ( $this->has_whitelist_comment( 'tax_query', $stackPtr ) ) {
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return;
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}
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return parent::process_token( $stackPtr );
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}
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/**
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* Callback to process each confirmed key, to check value.
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* This must be extended to add the logic to check assignment value.
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*
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* @param string $key Array index / key.
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* @param mixed $val Assigned value.
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* @param int $line Token line.
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* @param array $group Group definition.
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* @return mixed FALSE if no match, TRUE if matches, STRING if matches
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* with custom error message passed to ->process().
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*/
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public function callback( $key, $val, $line, $group ) {
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return true;
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}
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}
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