随机获取节点，改为用is_path判断，含子节点

application/controllers/information.php

@@ -1111,10 +1111,13 @@ class Information extends CI_Controller
                 $data = $this->Information_model->search_by_words($url, $keywords, $exclude_ids);
                 break;
             case 'rule_same_node_random'://同节点随机
-                $data = $this->Information_model->random(1, $root_information->is_id, $exclude_ids);
+                $data = $this->Information_model->random(1, $root_information->is_path, $exclude_ids);
                 break;
             case 'rule_this_node_random'://指定节点下随机
-                $data = $this->Information_model->random(1, $recommand->ir_pointer_is_id, $exclude_ids);
+                $ir_pointer=$this->Information_model->Detail($recommand->ir_pointer_is_id);
+                if(!empty($ir_pointer)){
+                    $data = $this->Information_model->random(1, $ir_pointer->is_path, $exclude_ids);
+                }
                 break;
             case 'rule_range_random'://范围内随机，同读取备用节点
                 break;
@@ -1185,7 +1188,7 @@ class Information extends CI_Controller
         switch (strtolower($data['type_detail']->ic_url_title)) {
             case 'inspiration':
                 //随机获取两个同级节点内容
-                $random_array = $this->Information_model->random(2, $data['detail']->is_parent_id, array($data['detail']->is_id));
+                $random_array = $this->Information_model->random(2, $data['root_detail']->is_path, array($data['detail']->is_id));
                 if (!empty($random_array[0])) {
                     $data['info_howtoplan'] = $random_array[0];
                     $data['info_howtoplan_root'] = $data['root_detail'];