fix bug

apps/exams/Lib/Model/ExamsPaperModel.class.php

@@ -37,18 +37,16 @@ class ExamsPaperModel extends Model
             $str = rtrim($str, 'OR ');
             $map['_string'] .= $str.')';
         }
-        $order         = isset($this->order_field[$order]) ? $this->order_field[$order] : $order;
-        $model = $this->where($map)->order($order);
         if ((int)$isApi === 1) {
-            var_dump($map);
-            die;
-            $model->where('and EXISTS ( SELECT exams_paper_id from el_exams_paper_options WHERE el_exams_paper_options.exams_paper_id =  el_exams_paper.exams_paper_id)');
+            $map['_string'] .= ' AND EXISTS ( SELECT exams_paper_id from el_exams_paper_options WHERE el_exams_paper_options.exams_paper_id =  el_exams_paper.exams_paper_id)';
         }
 
         if ((int)$isApi === 2) {
-
+            $map['_string'] .= ' AND EXISTS ( SELECT exams_paper_id from el_exams_paper_options WHERE el_exams_paper_options.exams_paper_id =  el_exams_paper.exams_paper_id)';
         }
-        $list          = $model->findPage($limit);
+
+        $order         = isset($this->order_field[$order]) ? $this->order_field[$order] : $order;
+        $list          = $this->where($map)->order($order)->findPage($limit);
         if ($list['data']) {
             $list['data']   = $this->haddleData($list['data']);
         }