1. 類繼承GenericAPIView,定義queryset
印象深入的事:
因爲原來對於繼承關係不太清楚,寫接口 APIView/泛指GenericAPIView不太關注queryset
沒有設置渲染器:默認 [JSONRenderer,BrowsableAPIRenderer]
BrowsableAPIRenderer,內部檢查當前視圖函數是否有 get_queryset,若有則會調用。未設置,則斷言異常。vue
2. 全部視圖都有功能:添加到配置文件
好比統一渲染器,解析器等ios
3. URL統一規則
url後加不加/等,都要統一ajax
4. 序列化
- 簡單:fk/o2o/choice -> source
- 複雜:m2m/gfk -> SerializerMethodFieldnpm
在序列化類中定義字段時,對於一些簡單的外鍵、一對一字段或choice字段能夠使用source方法獲取想要的值json
而複雜一些的多對多字段等能夠使用自定義方法axios
class CourseSerializer(ModelSerializer): category = serializers.CharField(source='sub_category.name') xx = serializers.CharField(source='get_course_type_display') price_policy = serializers.SerializerMethodField() class Meta: model = models.Course fields = ['id', 'name','category','xx','price_policy'] def get_price_policy(self, obj): price_policy_list = obj.degreecourse_price_policy.all() return [{'id': row.id, 'price': row.price, 'period': row.get_valid_period_display()} for row in price_policy_list]
5. cors
跨域請求能夠經過中間件添加相應的響應頭,一些參數還能夠寫到settings中api
class Cors(MiddlewareMixin): def process_response(self, request, response): response['Access-Control-Allow-Origin'] = ','.join(settings.CORS_ORIGIN_LIST) if request.method == 'OPTIONS': response['Access-Control-Allow-Methods'] = ','.join(settings.CORS_METHOD_LIST) response['Access-Control-Allow-Headers'] = ','.join(settings.CORS_HEADER_LIST) response['Access-Control-Allow-Credentials'] = 'true' return response
使用axios發送ajax請求
首先要下載axios跨域
npm install axios --save
而後在main.js中導入,並使用Vue.prototype.axios=axios方法,讓我們可以在後面使用this.axios=axios方法,讓咱們能夠在後面使用this.axios使用它app
import Vue from 'vue' import App from './App' import router from './router' import store from './store/store' import axios from 'axios' Vue.prototype.$store = store Vue.prototype.$axios = axios axios.defaults.headers['Content-Type'] = "application/json" Vue.config.productionTip = false
這裏axios.defaults.headers['Content-Type'] = "application/json"的意思是後續的axios發送請求時請求頭中都會帶有Content-Type='application/json',ajax中也能作相應的設置,以下cors
$.ajaxSetup({ beforeSend: function(xhr, settings) { xhr.setRequestHeader("Content-Type", "application/json"); } });
使用
init(){ // 發送Ajax var that = this this.$axios.request({ url: this.$store.state.apiList.course, method:'GET', params:{ course_type:1 } }).then(function (arg) { console.log('then',arg) that.courseList =arg.data.data }).catch(function (arg) { console.log('catch',arg.response) }) }
經過axios.request方法發起ajax請求,參數url是發送的地址,method是發送方法,params是url中的參數,若是要發送請求體中的參數則使用data
then至關於ajax中的success,catch至關於error