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Issue 1778: DB Classes: Add prepared statements support - MSSQL

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git-svn-id: http://xe-core.googlecode.com/svn/branches/1.5.0@10492 201d5d3c-b55e-5fd7-737f-ddc643e51545
This commit is contained in:
ucorina 2012-03-28 16:29:17 +00:00
parent f1a80e7bbd
commit 0665b24aee
1 changed files with 79 additions and 40 deletions
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67
classes/db/DBMssql.class.php
View file

@ -153,17 +153,56 @@
// Run the query statement
$result = false;
if(count($_param)){
$result = @sqlsrv_query($connection, $query, $_param);
$args = $this->_getParametersByReference($_param);
$stmt = sqlsrv_prepare($connection, $query, $args);
}else{
$result = @sqlsrv_query($connection, $query);
$stmt = sqlsrv_prepare($connection, $query);
}
// Error Check
if(!$result) $this->setError(print_r(sqlsrv_errors(),true));
if(!$stmt)
{
$result = false;
}
else
{
$result = sqlsrv_execute($stmt);
}
// Error Check
if(!$result)
$this->setError(print_r(sqlsrv_errors(),true));
$this->param = array();
return $result;
return $stmt;
}
/**
* Parameters to sqlsrv_prepare need to be references, and not literals
* Parameters are sent as an array, where each parameter can be:
* - a PHP variable (by reference)
* - a PHP array (containng param value, type and direction) -> also needs to be sent by reference
*/
function _getParametersByReference($_param)
{
$copy = array(); $args = array(); $i = 0;
foreach($_param as $key => $value) {
if(is_array($value))
{
$value_copy = $value;
$value_arg = array();
$value_arg[] = &$value_copy[0];
$value_arg[] = $value_copy[1];
$value_arg[] = $value_copy[2];
}
else
{
$value_arg = $value;
}
$copy[$key] = $value_arg;
$args[$i++] = &$copy[$key];
}
return $args;
}
/**
@ -439,7 +478,7 @@
}
function getSelectSql($query){
$with_value = false;
$with_values = false;
//$limitOffset = $query->getLimit()->getOffset();
//if($limitOffset)
@ -531,15 +570,19 @@
$total_count = (int) $count_output->count;
$list_count = $limit->list_count->getValue();
if (!$list_count) $list_count = 20;
if (!$list_count)
$list_count = 20;
$page_count = $limit->page_count->getValue();
if (!$page_count) $page_count = 10;
if (!$page_count)
$page_count = 10;
$page = $limit->page->getValue();
if (!$page) $page = 1;
if (!$page)
$page = 1;
// Total pages
if ($total_count) {
$total_page = (int) (($total_count - 1) / $list_count) + 1;
} else $total_page = 1;
} else
$total_page = 1;
// check the page variables
if ($page > $total_page) {
@ -557,10 +600,6 @@
$query .= (__DEBUG_QUERY__ & 1 && $queryObject->query_id) ? sprintf(' ' . $this->comment_syntax, $this->query_id) : '';
$this->param = $queryObject->getArguments();
$result = $this->_query ($query, $connection);
if ($this->isError ())
return $this->queryError($queryObject);
$virtual_no = $total_count - ($page - 1) * $list_count;
$data = $this->_fetch($result, $virtual_no);