91 lines
2.5 KiB
PHP
91 lines
2.5 KiB
PHP
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<?php
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/**
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* Created by PhpStorm.
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* User: lucas
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* Date: 30/08/16
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* Time: 17:26
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*/
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namespace database\core\PDOWrapper;
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class PDOWrapper extends \PDO
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{
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private $statements = [];
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private $stacking = false;
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public function __construct(String $dsn, String $username, String $passwd, array $options = [])
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{
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parent::__construct($dsn, $username, $passwd, $options);
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}
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public function prepare($statement, $options = [])
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{
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if($this->stacking){
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return new PDOStatementWrapper($statement, $this);
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}else{
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parent::setAttribute(\PDO::ATTR_EMULATE_PREPARES, true);
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return parent::prepare($statement, $options);
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}
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}
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public function enableStacking(){
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$this->stacking = true;
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}
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public function stackStatement(PDOStatementWrapper $st){
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array_push($this->statements,$st);
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}
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public function executeStack(){
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//init the statements and the generator of number
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$finalStatement = '';
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$finalExecute = [];
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$i = 0;
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//for each request stacked
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foreach ($this->statements as $request){
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$statement = $request->getStatement();
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// we have to modify the parameters index at the same time that we modify the request, so we use static class attribute
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$tempParametes = $request->getParameters();
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//find the given pattern in the request, then call our function and replace the matched string by the return value of our function
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$finalStatement .= rtrim(preg_replace_callback("/(:[a-z_\-0-9]*)/is",function($matches) use (&$i,&$tempParametes){
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//get next number
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$i++;
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//delete the ':' at the beginning of the string
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$tempKey = ltrim($matches[0],':');
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//copy the parameter with the modified index
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$tempParametes[$tempKey.$i] = $tempParametes[$tempKey];
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//delete the old index
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unset($tempParametes[$tempKey]);
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//return the modified string for replacement
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return $matches[0].$i;
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},$statement),';').';';
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$finalExecute = array_merge($finalExecute,$tempParametes);
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}
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//disable stacking
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$this->stacking = false;
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$this->beginTransaction();
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$req = $this->prepare($finalStatement);
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$success = $req->execute($finalExecute);
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//as we execute multiple query that we don't fetch, we have to close the cursor if we want to do other requests later
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$req->closeCursor();
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$this->commit();
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//using beginTransaction/commit disable the autocommit, we re-activate it
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$this->setAttribute(\PDO::ATTR_AUTOCOMMIT,1);
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parent::setAttribute(\PDO::ATTR_EMULATE_PREPARES, false);
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return $success;
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}
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}
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