log

application/core/MY_Model.php

@@ -13,9 +13,11 @@
 
 
 class MY_Model extends CI_Model{
-	
+
 			function __construct(){
 					parent::__construct();
+					// Disable ONLY_FULL_GROUP_BY for legacy queries
+					$this->db->query("SET sql_mode=(SELECT REPLACE(@@sql_mode,'ONLY_FULL_GROUP_BY',''))");
 		}
 	
 	function get_record_by_id($id, $fieldname=FALSE, $row=TRUE){
@@ -74,7 +76,22 @@ class MY_Model extends CI_Model{
 
 	function get_query_result(){
 		$query = $this->db->query($this->sql);
-		if($query->num_rows()==0){
+		if($query === FALSE){
+			$error = $this->db->error();
+			log_message('error', 'Database query failed: ' . $error['message'] . ' | SQL: ' . $this->sql);
+			// Tijdelijk ook direct tonen voor debugging
+			if(ENVIRONMENT !== 'production'){
+				echo "SQL Error: " . $error['message'] . "\n";
+				echo "SQL: " . $this->sql . "\n";
+			}
+			return FALSE;
+		}
+		$num_rows = $query->num_rows();
+		// Tijdelijk loggen voor debugging
+		if(ENVIRONMENT !== 'production'){
+			log_message('debug', 'Query returned ' . $num_rows . ' rows | SQL: ' . substr($this->sql, 0, 100));
+		}
+		if($num_rows == 0){
 			return FALSE;
 		}else{
 			return $query->result();

application/models/monpas/Groepen_model.php

@@ -117,9 +117,19 @@ class Groepen_model extends MY_Model{
                       AND     GR.schooljaarnr   = {$schooljaarnr}
                       AND     GR.schooltype     = 'R'
                       AND     GR.module         = {$module}
-                    GROUP BY  GR.id
+                    GROUP BY  GR.id, GR.naam, GR.niveau, GR.totaantal, GR.ondersteuning
                     ORDER BY  niveau, naam, GR.id ";
-        return $this->get_query_result();
+
+        // Tijdelijk debug: ook op productie loggen
+        error_log("=== GETGROEPEN DEBUG ===");
+        error_log("orgid: $orgid, schooljaarnr: $schooljaarnr, module: $module");
+        error_log("SQL: " . $this->sql);
+
+        $result = $this->get_query_result();
+
+        error_log("Result: " . ($result === FALSE ? 'FALSE' : count($result) . ' rows'));
+
+        return $result;
     }
     function getgekopieerdegroepen($orgid, $schooljaarnr, $module){
         $this->sql = "SELECT  GR.id,
@@ -146,7 +156,7 @@ class Groepen_model extends MY_Model{
                       AND     GR.schooljaarnr   = {$schooljaarnr}
                       AND     GR.schooltype     = 'R'
                       AND     GR.module         = {$module}
-                    GROUP BY  GR.id
+                    GROUP BY  GR.id, GR.naam, GR.niveau, GR.totaantal
                     ORDER BY  niveau, naam, GR.id ";
         return $this->get_query_result();
     }