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ENHANCEMENT: check for empty clause which will break the sql query

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This commit is contained in:
Mateusz Uzdowski 2010-08-31 22:19:58 +00:00
parent bef5b0ed05
commit 2aff1a9196
1 changed files with 5 additions and 0 deletions
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5
code/MSSQLDatabase.php
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@ -1251,6 +1251,7 @@ class MSSQLDatabase extends SS_Database {
// Create one query per each table, columns not used.
foreach($tables as $tableName=>$columns){
$join = $this->fullTextSearchMSSQL($tableName, $keywords);
if (!$join) return new DataObjectSet(); // avoid "Null or empty full-text predicate"
// Check if we need to add ShowInSearch
$where = null;
@ -1322,6 +1323,8 @@ class MSSQLDatabase extends SS_Database {
* @param $tableName specific - table name
* @param $keywords string The search query
* @param $fields array The list of field names to search on, or null to include all
*
* @returns null if keyword set is empty or the string with JOIN clause to be added to SQL query
*/
function fullTextSearchMSSQL($tableName, $keywords, $fields = null) {
// Make sure we are getting an array of fields
@ -1340,6 +1343,8 @@ class MSSQLDatabase extends SS_Database {
$keywords = self::removeStopwords($keywords);
$keywords = implode(' AND ', $keywords);
if (!$keywords || trim($keywords)=='') return null;
if ($fields) $fieldNames = '"' . implode('", "', $fields) . '"';
else $fieldNames = "*";