Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
namespace DDDBL;
/**
*
* create an exception with relevant information, if a query fails
*
**/
class QueryException extends \Exception {
/**
*
* @param $objPDO - the PDO object which caused the error when executed
* @param $arrQueryDefinition - the complete query definition
*
* create an error message which contains all relevant informations
* and print them as exception
*
**/
public function __construct(\PDOStatement $objPDO, array $arrQueryDefinition) {
$strMessage = self::createErrorMessage($objPDO, $arrQueryDefinition);
parent::__construct($strMessage);
}
/**
*
* @param $objPDO - the PDO object related with the error
* @param $arrQueryDefinition - the complete query definition
*
* @return (string) the complete exception message
*
* build and return the exception message out of the given error info
* and query definition
*
**/
private function createErrorMessage(\PDOStatement $objPDO, array $arrQueryDefinition) {
$strMessage = self::flattenQueryErrorInfo($objPDO);
$strMessage .= self::flattenQueryDefiniton($arrQueryDefinition);
return $strMessage;
}
/**
*
* @param $objPDO - PDO object to get error information from
*
* @return (string) a flatten error info from the query object
*
* build and return a flatten error-info
* from the driver specific error message
*
**/
private function flattenQueryErrorInfo(\PDOStatement $objPDO) {
$arrErrorInfo = $objPDO->errorInfo();
$strMessage = '';
if(!empty($arrErrorInfo) && !empty($arrErrorInfo[0]) && '00000' !== $arrErrorInfo[0])
$strMessage = "\nError-Code: {$arrErrorInfo[0]}\nError-Message: {$arrErrorInfo[2]}\n";
return $strMessage;
}
/**
*
* @param $arrQueryDefinition - the complete query definition
*
* @return (string) a text version of the query definition
*
* create an text, which contains all *scalar* information
* of the query definition. if there are non-scalar information
* added, the will be excluded from output
*
**/
private function flattenQueryDefiniton(array $arrQueryDefinition) {
$strMessage = "\nQuery-Definiton:\n";
foreach($arrQueryDefinition AS $strKeyword => $strContent)
if(is_scalar($strContent))
$strMessage .= "$strKeyword: $strContent\n";
return $strMessage . "\n";
}
}