新功能: 添加后端代码
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李强
276
backend/dvadmin/system/views/system_config.py
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276
backend/dvadmin/system/views/system_config.py
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# -*- coding: utf-8 -*-
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"""
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@author: 猿小天
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@contact: QQ:1638245306
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@Created on: 2022/1/21 003 0:30
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@Remark: 系统配置
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"""
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import django_filters
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from django.db.models import Q
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from django_filters.rest_framework import BooleanFilter
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from rest_framework import serializers
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from rest_framework.views import APIView
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from application import dispatch
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from dvadmin.system.models import SystemConfig
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from dvadmin.utils.json_response import DetailResponse, SuccessResponse, ErrorResponse
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from dvadmin.utils.models import get_all_models_objects
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from dvadmin.utils.serializers import CustomModelSerializer
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from dvadmin.utils.validator import CustomValidationError
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from dvadmin.utils.viewset import CustomModelViewSet
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class SystemConfigCreateSerializer(CustomModelSerializer):
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"""
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系统配置-新增时使用-序列化器
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"""
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form_item_type_label = serializers.CharField(source='get_form_item_type_display', read_only=True)
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class Meta:
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model = SystemConfig
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fields = "__all__"
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read_only_fields = ["id"]
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def validate_key(self, value):
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"""
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验证key是否允许重复
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parent为空时不允许重复,反之允许
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"""
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instance = SystemConfig.objects.filter(key=value, parent__isnull=True).exists()
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if instance:
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raise CustomValidationError('已存在相同变量名')
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return value
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class SystemConfigInitSerializer(CustomModelSerializer):
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"""
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初始化获取数信息(用于生成初始化json文件)
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"""
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children = serializers.SerializerMethodField()
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def get_children(self, obj: SystemConfig):
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data = []
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instance = SystemConfig.objects.filter(parent_id=obj.id)
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if instance:
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serializer = SystemConfigInitSerializer(instance=instance, many=True)
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data = serializer.data
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return data
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def save(self, **kwargs):
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instance = super().save(**kwargs)
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children = self.initial_data.get('children')
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# 菜单表
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if children:
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for data in children:
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data['parent'] = instance.id
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filter_data = {
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"key": data['key'],
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"parent": data['parent']
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}
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instance_obj = SystemConfig.objects.filter(**filter_data).first()
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if instance_obj and not self.initial_data.get('reset'):
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continue
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serializer = SystemConfigInitSerializer(instance_obj, data=data, request=self.request)
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serializer.is_valid(raise_exception=True)
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serializer.save()
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return instance
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class Meta:
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model = SystemConfig
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fields = ['parent', 'title', 'key', 'value', 'sort', 'status', 'data_options', 'form_item_type', 'rule',
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'placeholder', 'setting', 'creator', 'dept_belong_id', 'children']
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read_only_fields = ["id"]
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extra_kwargs = {
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'creator': {'write_only': True},
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'dept_belong_id': {'write_only': True}
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}
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class SystemConfigSerializer(CustomModelSerializer):
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"""
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系统配置-序列化器
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"""
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form_item_type_label = serializers.CharField(source='get_form_item_type_display', read_only=True)
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class Meta:
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model = SystemConfig
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fields = "__all__"
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read_only_fields = ["id"]
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class SystemConfigChinldernSerializer(CustomModelSerializer):
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"""
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系统配置子级-序列化器
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"""
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chinldern = serializers.SerializerMethodField()
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form_item_type_label = serializers.CharField(source='get_form_item_type_display', read_only=True)
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def get_chinldern(self, instance):
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queryset = SystemConfig.objects.filter(parent=instance)
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serializer = SystemConfigSerializer(queryset, many=True)
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return serializer.data
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class Meta:
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model = SystemConfig
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fields = "__all__"
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read_only_fields = ["id"]
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class SystemConfigListSerializer(CustomModelSerializer):
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"""
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系统配置下模块的保存-序列化器
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"""
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def update(self, instance, validated_data):
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instance_mapping = {obj.id: obj for obj in instance}
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data_mapping = {item['id']: item for item in validated_data}
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for obj_id, data in data_mapping.items():
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instance_obj = instance_mapping.get(obj_id, None)
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if instance_obj is None:
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return SystemConfig.objects.create(**data)
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else:
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return instance_obj.objects.update(**data)
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class Meta:
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model = SystemConfig
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fields = "__all__"
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read_only_fields = ["id"]
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class SystemConfigSaveSerializer(serializers.Serializer):
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class Meta:
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read_only_fields = ["id"]
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list_serializer_class = SystemConfigListSerializer
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class SystemConfigFilter(django_filters.rest_framework.FilterSet):
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"""
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过滤器
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"""
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parent__isnull = BooleanFilter(field_name='parent', lookup_expr="isnull")
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class Meta:
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model = SystemConfig
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fields = ['id', 'parent', 'status', 'parent__isnull']
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class SystemConfigViewSet(CustomModelViewSet):
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"""
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系统配置接口
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"""
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queryset = SystemConfig.objects.order_by('sort', 'create_datetime')
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serializer_class = SystemConfigChinldernSerializer
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create_serializer_class = SystemConfigCreateSerializer
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retrieve_serializer_class = SystemConfigChinldernSerializer
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# filter_fields = ['id','parent']
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filter_class = SystemConfigFilter
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def save_content(self, request):
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body = request.data
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data_mapping = {item['id']: item for item in body}
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for obj_id, data in data_mapping.items():
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instance_obj = SystemConfig.objects.filter(id=obj_id).first()
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if instance_obj is None:
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# return SystemConfig.objects.create(**data)
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serializer = SystemConfigCreateSerializer(data=data)
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else:
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serializer = SystemConfigCreateSerializer(instance_obj, data=data)
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if serializer.is_valid(raise_exception=True):
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serializer.save()
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return DetailResponse(msg="保存成功")
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def get_association_table(self, request):
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"""
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获取所有的model及字段信息
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"""
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res = [ele.get('table') for ele in get_all_models_objects().values()]
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return DetailResponse(msg="获取成功", data=res)
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def get_table_data(self, request, pk):
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"""
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动态获取关联表的数据
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"""
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instance = SystemConfig.objects.filter(id=pk).first()
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if instance is None:
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return ErrorResponse(msg="查询出错了~")
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setting = instance.setting
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if setting is None:
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return ErrorResponse(msg="查询出错了~")
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table = setting.get('table') # 获取model名
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model = get_all_models_objects(table).get("object", {})
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# 自己判断一下不存在
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queryset = model.objects.values()
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body = request.query_params
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search_value = body.get('search', None)
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if search_value:
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search_fields = setting.get('searchField')
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filters = Q()
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filters.connector = 'OR'
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for item in search_fields:
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filed = '{0}__icontains'.format(item.get('field'))
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filters.children.append((filed, search_value))
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queryset = model.objects.filter(filters).values()
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page = self.paginate_queryset(queryset)
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if page is not None:
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return self.get_paginated_response(queryset)
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return SuccessResponse(msg="获取成功", data=queryset, total=len(queryset))
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def get_relation_info(self, request):
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"""
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查询关联的模板信息
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"""
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body = request.query_params
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var_name = body.get('varName', None)
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table = body.get('table', None)
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instance = SystemConfig.objects.filter(key=var_name, setting__table=table).first()
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if instance is None:
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return ErrorResponse(msg="未获取到关联信息")
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relation_id = body.get('relationIds', None)
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relationIds = []
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if relation_id is None:
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return ErrorResponse(msg="未获取到关联信息")
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if instance.form_item_type in [13]:
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relationIds = [relation_id]
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elif instance.form_item_type in [14]:
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relationIds = relation_id.split(',')
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queryset = SystemConfig.objects.filter(value__in=relationIds).first()
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if queryset is None:
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return ErrorResponse(msg="未获取到关联信息")
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serializer = SystemConfigChinldernSerializer(queryset.parent)
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return DetailResponse(msg="查询成功", data=serializer.data)
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class InitSettingsViewSet(APIView):
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"""
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获取初始化配置
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"""
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authentication_classes = []
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permission_classes = []
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def filter_system_config_values(self, data: dict):
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"""
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过滤系统初始化配置
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:param data:
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:return:
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"""
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if not self.request.query_params.get('key', ''):
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return data
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new_data = {}
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for key in self.request.query_params.get('key', '').split('|'):
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if key:
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new_data.update(**dict(filter(lambda x: x[0].startswith(key), data.items())))
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return new_data
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def get(self, request):
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data = dispatch.get_system_config()
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if not data:
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dispatch.refresh_system_config()
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data = dispatch.get_system_config()
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# 不返回后端专用配置
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backend_config = [f"{ele.get('parent__key')}.{ele.get('key')}" for ele in
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SystemConfig.objects.filter(status=False, parent_id__isnull=False).values('parent__key',
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'key')]
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data = dict(filter(lambda x: x[0] not in backend_config, data.items()))
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data = self.filter_system_config_values(data=data)
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return DetailResponse(data=data)
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