apps/system/serializers.py

@@ -320,7 +320,7 @@ def phone_exist(phone):
 
 
 def user_exist(username):
-    if User.objects.get_queryset(all=True).filter(username=username).exists():
+    if User.objects.filter(username=username).exists():
         raise serializers.ValidationError(**USERNAME_EXIST)
     return username
 

apps/utils/mixins.py

@@ -251,7 +251,6 @@ class ComplexQueryMixin:
         queryset = self.get_queryset()
         querys = vdata.get('querys', [])
         annotate_field_list = vdata.get('annotate_field_list', [])
-        distinct = vdata.get('distinct', True)
 
         if not querys:
             new_qs = queryset
@@ -275,11 +274,6 @@ class ComplexQueryMixin:
             except Exception as e:
                 raise ParseError(str(e))
         
-        # 反向关联(右到左)查询容易因 JOIN 膨胀产生重复行，这里按主键回查去重
-        if distinct:
-            pk_name = queryset.model._meta.pk.attname
-            new_qs = queryset.filter(**{f"{pk_name}__in": new_qs.values(pk_name)})
-        
         if annotate_field_list:
             annotate_dict = getattr(self, "annotate_dict", {})
             if annotate_dict:

apps/utils/serializers.py

@@ -83,7 +83,6 @@ class ComplexSerializer(serializers.Serializer):
     page = serializers.IntegerField(min_value=0, required=False)
     page_size = serializers.IntegerField(min_value=1, required=False)
     ordering = serializers.CharField(required=False)
-    distinct = serializers.BooleanField(required=False, default=True, label="是否按主键去重")
     querys = serializers.ListField(child=QuerySerializer(
         many=True), label="查询列表", required=False)
     annotate_field_list = serializers.ListField(child=serializers.CharField(), label="RawSQL字段列表", required=False)