update

app/Http/Controllers/Admin/CompanyController.php

@@ -17,6 +17,7 @@ use App\Models\CustomForm;
 use App\Models\CustomFormField;
 use App\Models\EmailTemplate;
 use App\Models\SupplyDemand;
+use App\Models\Teacher;
 use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Validator;
 use Maatwebsite\Excel\Facades\Excel;
@@ -58,7 +59,31 @@ class CompanyController extends BaseController
         });
         $companiesTags = array_values($companiesTags);
 
-        return $this->success(compact('companiesTags'));
+        // 课程方向（从teachers表的direction字段获取并去重）
+        $teacherDirections = Teacher::whereNotNull('direction')
+            ->where('direction', '!=', '')
+            ->pluck('direction')
+            ->toArray();
+
+        $allDirections = [];
+        foreach ($teacherDirections as $direction) {
+            if (!empty($direction)) {
+                // 将逗号分隔的字符串拆分成数组
+                $directions = explode(',', $direction);
+                foreach ($directions as $dir) {
+                    $dir = trim($dir);
+                    if (!empty($dir)) {
+                        $allDirections[] = $dir;
+                    }
+                }
+            }
+        }
+        // 去重并重新索引
+        $directions = array_values(array_unique($allDirections));
+        // 排序
+        sort($directions);
+
+        return $this->success(compact('companiesTags', 'directions'));
     }