95 lines
2.4 KiB
PHP
95 lines
2.4 KiB
PHP
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<?php
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/**
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* DELETE query builder
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*
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* @method DeleteQuery leftJoin(string $statement) add LEFT JOIN to query
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* ($statement can be 'table' name only or 'table:' means back reference)
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* @method DeleteQuery innerJoin(string $statement) add INNER JOIN to query
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* ($statement can be 'table' name only or 'table:' means back reference)
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* @method DeleteQuery from(string $table) add LIMIT to query
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* @method DeleteQuery orderBy(string $column) add ORDER BY to query
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* @method DeleteQuery limit(int $limit) add LIMIT to query
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*/
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class DeleteQuery extends CommonQuery
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{
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private $ignore = false;
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/**
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* DeleteQuery constructor.
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*
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* @param FluentPDO $fpdo
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* @param string $table
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*/
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public function __construct(FluentPDO $fpdo, $table) {
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$clauses = array(
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'DELETE FROM' => array($this, 'getClauseDeleteFrom'),
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'DELETE' => array($this, 'getClauseDelete'),
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'FROM' => null,
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'JOIN' => array($this, 'getClauseJoin'),
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'WHERE' => ' AND ',
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'ORDER BY' => ', ',
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'LIMIT' => null,
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);
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parent::__construct($fpdo, $clauses);
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$this->statements['DELETE FROM'] = $table;
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$this->statements['DELETE'] = $table;
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}
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/**
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* Forces delete operation to fail silently
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*
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* @return \DeleteQuery
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*/
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public function ignore() {
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$this->ignore = true;
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return $this;
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}
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/**
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* @return string
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*/
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protected function buildQuery() {
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if ($this->statements['FROM']) {
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unset($this->clauses['DELETE FROM']);
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} else {
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unset($this->clauses['DELETE']);
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}
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return parent::buildQuery();
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}
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/**
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* Execute DELETE query
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*
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* @return bool
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*/
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public function execute() {
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$result = parent::execute();
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if ($result) {
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return $result->rowCount();
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}
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return false;
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}
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/**
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* @return string
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*/
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protected function getClauseDelete() {
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return 'DELETE' . ($this->ignore ? " IGNORE" : '') . ' ' . $this->statements['DELETE'];
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}
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/**
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* @return string
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*/
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protected function getClauseDeleteFrom() {
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return 'DELETE' . ($this->ignore ? " IGNORE" : '') . ' FROM ' . $this->statements['DELETE FROM'];
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}
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}
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