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added concat function to abstract different concat operators or functions

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This commit is contained in:
Ralf Becker 2004-05-23 23:34:32 +00:00
parent 01d480cad1
commit 7d5faa667a
1 changed files with 25 additions and 1 deletions
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26
phpgwapi/inc/class.db.inc.php
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@ -275,7 +275,6 @@
{
return False;
}
if (is_array($str)) $this->halt('db::db_addslashes('.print_r($str,True).",'$type') 1. arguments is an array!!!");
// the substring is needed as the string is already in quotes
return substr($this->Link_ID->quote($str),1,-1);
}
@ -859,6 +858,31 @@ if (is_array($str)) $this->halt('db::db_addslashes('.print_r($str,True).",'$type
$this->connect();
}
/**
* concat a variable number of strings together, to be used in a query
*
* Example: $db->concat($db->quote('Hallo '),'username') would return
* for mysql "concat('Hallo ',username)" or "'Hallo ' || username" for postgres
* @param $str1 string already quoted stringliteral or column-name, variable number of arguments
* @return string to be used in a query
*/
function concat($str1)
{
$args = func_get_args();
// REMOVE-IF-ONLY-ADODB
if (isset($GLOBALS['phpgw_info']['server']['use_adodb']) &&
!@$GLOBALS['phpgw_info']['server']['use_adodb'])
{
return $this->Type == 'mysql' ? 'concat('.implode(',',$args).')' : implode('||',$args);
}
if (!$this->Link_ID && !$this->connect())
{
return False;
}
return call_user_func_array(array(&$this->Link_ID,'concat'),$args);
}
/**
* Correctly Quote Identifiers like table- or colmnnames for use in SQL-statements
*