开始学习DRF

apps/goods/serializers.py

@@ -0,0 +1,35 @@
+from rest_framework import serializers
+from apps.goods.models import *
+
+
+class GoodsCateSerializer(serializers.Serializer):
+    id = serializers.IntegerField(read_only=True)
+    name = serializers.CharField()
+
+
+class GoodsSerializers(serializers.Serializer):
+    name = serializers.CharField(required=True, max_length=100)
+    # category = serializers.CharField(required=False)
+    category = GoodsCateSerializer(required=False, read_only=True)
+    market_price = serializers.DecimalField(max_digits=8, decimal_places=2)
+    price = serializers.DecimalField(max_digits=8, decimal_places=2)
+
+    def create(self, validated_data):
+        print(type(validated_data), validated_data)
+        return Goods.objects.create(**validated_data)
+
+    def update(self, instance, validated_data):
+        print(type(validated_data), validated_data)
+        instance.name = validated_data.get('name')
+        instance.market_price = validated_data.get('market_price')
+        instance.price = validated_data.get('price')
+        instance.save()
+        return instance
+
+
+class GoodsModelSerializer(serializers.ModelSerializer):
+    category = GoodsCateSerializer(required=False, read_only=True)
+
+    class Meta:
+        model = Goods
+        fields = '__all__'

apps/goods/urls.py

@@ -17,10 +17,15 @@ Including another URLconf
 from django.contrib import admin
 from django.urls import path
 from apps.goods import views
+from apps.goods import views_api
 
 urlpatterns = [
-    path('cate_index/', views.GoodCateView.as_view(), name='cate_index'),
-    path('cate_add/', views.GoodCateAddView.as_view(), name='cate_add'),
-    path('index/', views.GoodView.as_view(), name='good_index'),
-    path('add/', views.GoodsAddView.as_view(), name='good_add')
+    # path('cate_index/', views.GoodCateView.as_view(), name='cate_index'),
+    # path('cate_add/', views.GoodCateAddView.as_view(), name='cate_add'),
+    # path('index/', views.GoodView.as_view(), name='good_index'),
+    # path('add/', views.GoodsAddView.as_view(), name='good_add'),
+    # path('index/goods/ajax_goods/', views.ajax_goods, name='ajax_goods')
+    path('goods_api/', views.GoodsView.as_view()),
+    path('goods_model_api/', views.GoodsModelView.as_view()),
+    path('goods_api_d/', views_api.goods_list),
 ]

apps/goods/views.py

@@ -1,152 +1,22 @@
-from django.shortcuts import render, redirect, reverse
-from django.http.response import JsonResponse
-from django.views.generic.base import View
+from rest_framework.views import APIView
+from rest_framework.response import Response
 
 from apps.goods.models import *
-from apps.goods.forms import *
-
-
-# Create your views here.
-class GoodCateView(View):
-    def get(self, request):
-        cates = GoodsCategory.objects.all()
-        return render(request, 'goods/cate_index.html', {'cates': cates})
-
-    def post(self, request):
-        pass
-
-
-class GoodCateAddView(View):
-    def __init__(self):
-        self.alist = []
-
-    def bind_data(self, data, _id, n):
-        if id == 0:
-            data = data.filter(parent__isnull=True)
-        else:
-            data = data.filter(parent=_id)
-        for d in data:
-            print(d)
-            self.alist[d.id] = self.space_length(n) + d.name
-            self.bind_data(d, d.id, n + 2)
-        return self.alist
-
-    def space_length(self, i):
-        space = ''
-        for j in range(1, i):
-            space += "  "
-        return space + "|--"
-
-    def get(self, request):
-        form_obj = GoodsCateForm()
-        return render(request, 'goods/cate_add.html', {'form_obj': form_obj})
-
-    def post(self, request):
-        form_obj = GoodsCateForm(request.POST, request.FILES)
-        if form_obj.is_valid():
-            name = request.POST.get('name', '')
-            cates = GoodsCategory.objects.filter(name=name)
-            if cates:
-                info = '分类已经存在'
-            else:
-                cate = GoodsCategory.objects.create(**form_obj.cleaned_data)
-                return redirect('cate_index')
-            return render(request, 'goods/cate_add.html', {'form_obj': form_obj, 'info': info})
-        else:
-            errors = form_obj.errors
-            print(errors)
-            return render(request, 'goods/cate_add.html', {'form_obj': form_obj, 'info': errors})
-
-
-class GoodView(View):
-    def __init__(self):
-        self.alist = {}
-
-    def bind_data(self, data, _id, n):
-        data = GoodsCategory.objects.filter(parent_id=_id)
-        for d in data:
-            self.alist[data.id] = self.spacelength(n) + d.name
-            self.bind_data(data, d.id, n + 2)
-        return self.alist
-
-    def spacelength(self, i):
-        space = ''
-        for j in range(1, i):
-            space += "  "
-        return space + "|--"
-
-    def get(self, request):
-        cates_all = GoodsCategory.objects.all()
-        cates = self.bind_data(cates_all, 0, 1)
-        return render(request, 'goods/goods_index.html', {'cates': cates})
-
-    def post(self, request):
-        pass
-
-
-class GoodsAddView(View):
-    def __init__(self):
-        self.alist = {}
-
-    def binddata(self, datas, id, n):
-        if id == 0:
-            datas = GoodsCategory.objects.filter(parent__isnull=True)
-        else:
-            datas = GoodsCategory.objects.filter(parent_id=id)
-        for data in datas:
-            self.alist[data.id] = self.spacelength(n) + data.name
-            self.binddata(datas, data.id, n + 2)
-        return self.alist
-
-    def spacelength(self, i):
-        space = ''
-        for j in range(1, i):
-            space += "  "
-        return space + "|--"
-
-    def get(self, request):
-        cates_all = GoodsCategory.objects.all()
-        cates = self.binddata(cates_all, 0, 1)
-        return render(request, 'goods/goods_add.html', {'cates': cates})
-
-    def post(self, request):
-        name = request.POST.get('name', '')
-        parent_id = request.POST.get('parent_id', '')
-        market_price = request.POST.get('market_price', '0')
-        price = request.POST.get('price', '0')
-        goods_desc = request.POST.get('goods_desc', '')
-        main_img = request.POST.get('main_img', '')
-        message = '字段需要填写'
-        if not name:
-            message = '请输入姓名'
-        return redirect(reverse('index'))
-
-
-def ajax_goods(request):
-    cate_id = request.POST.get('cate_id', '')
-    goodname = request.POST.get('goodname', '')
-    status = request.POST.get('status')
-    search_dict = dict()
-    if cate_id:
-        search_dict['category'] = cate_id
-    if goodname:
-        search_dict['name__contains'] = goodname
-    if status:
-        search_dict['status'] = status
-    page_size = 2
-    page = int(request.GET['page'])
-    total = Goods.objects.filter(**search_dict).count()
-    goods = Goods.objects.filter(**search_dict).order_by('-id')[(page - 1) * page_size: page * page_size]
-    rows = []
-    datas = {'total': total, 'row': rows}
-    for good in goods:
-        rows.append({
-            'id': good.id,
-            'name': good.name,
-            'market_price': good.market_price,
-            'price': good.price,
-            'category_id': good.category.name,
-            'click_num': good.click_num,
-            'amount': good.amount,
-        })
-    return JsonResponse(datas, safe=False, json_dumps_params={'ensure_ascii': False, 'indent': 4})
+from apps.goods.serializers import *
+
+class GoodsView(APIView):
+    def get(self, request, *args, **kwargs):
+        goods = Goods.objects.all()[:10]
+        goods_json = GoodsSerializers(goods, many=True)
+        print(goods_json)
+        print(goods_json.data)
+        return Response(goods_json.data)
+
+
+class GoodsModelView(APIView):
+    def get(self, request, *args, **kwargs):
+        goods = Goods.objects.all()[:10]
+        goods_json = GoodsModelSerializer(goods, many=True)
+        print(goods_json)
+        print(goods_json.data)
+        return Response(goods_json.data)

apps/goods/views2.py

@@ -0,0 +1,163 @@
+from django.shortcuts import render, redirect, reverse
+from django.http.response import JsonResponse
+from django.views.generic.base import View
+
+from apps.goods.models import *
+from apps.goods.forms import *
+
+
+# Create your views here.
+class GoodCateView(View):
+    def get(self, request):
+        cates = GoodsCategory.objects.all()
+        print(cates)
+        return render(request, 'goods/cate_index.html', {'cates': cates})
+
+    def post(self, request):
+        pass
+
+
+class GoodCateAddView(View):
+    def __init__(self):
+        self.alist = []
+
+    def bind_data(self, data, _id, n):
+        if id == 0:
+            data = data.filter(parent__isnull=True)
+        else:
+            data = data.filter(parent=_id)
+        for d in data:
+            print(d)
+            self.alist[d.id] = self.space_length(n) + d.name
+            self.bind_data(d, d.id, n + 2)
+        return self.alist
+
+    def space_length(self, i):
+        space = ''
+        for j in range(1, i):
+            space += "  "
+        return space + "|--"
+
+    def get(self, request):
+        form_obj = GoodsCateForm()
+        return render(request, 'goods/cate_add.html', {'form_obj': form_obj})
+
+    def post(self, request):
+        form_obj = GoodsCateForm(request.POST, request.FILES)
+        if form_obj.is_valid():
+            name = request.POST.get('name', '')
+            cates = GoodsCategory.objects.filter(name=name)
+            if cates:
+                info = '分类已经存在'
+            else:
+                cate = GoodsCategory.objects.create(**form_obj.cleaned_data)
+                return redirect('cate_index')
+            return render(request, 'goods/cate_add.html', {'form_obj': form_obj, 'info': info})
+        else:
+            errors = form_obj.errors
+            print(errors)
+            return render(request, 'goods/cate_add.html', {'form_obj': form_obj, 'info': errors})
+
+
+class GoodView(View):
+    def __init__(self):
+        self.alist = {}
+
+    def binddata(self, datas, id, n):
+        if id == 0:
+            datas = GoodsCategory.objects.filter(parent__isnull=True)
+        else:
+            datas = GoodsCategory.objects.filter(parent_id=id)
+        for data in datas:
+            self.alist[data.id] = self.spacelength(n) + data.name
+            self.binddata(datas, data.id, n + 2)
+        return self.alist
+
+    def spacelength(self, i):
+        space = ''
+        for j in range(1, i):
+            space += "  "
+        return space + "|--"
+
+    def get(self, request):
+        cates_all = GoodsCategory.objects.all()
+        cates = self.binddata(cates_all, 0, 1)
+        print(cates)
+        return render(request, 'goods/goods_index.html', {'cates': cates})
+
+    def post(self, request):
+        pass
+
+
+class GoodsAddView(View):
+    def __init__(self):
+        self.alist = {}
+
+    def binddata(self, datas, id, n):
+        if id == 0:
+            datas = GoodsCategory.objects.filter(parent__isnull=True)
+        else:
+            datas = GoodsCategory.objects.filter(parent_id=id)
+        for data in datas:
+            self.alist[data.id] = self.spacelength(n) + data.name
+            self.binddata(datas, data.id, n + 2)
+        return self.alist
+
+    def spacelength(self, i):
+        space = ''
+        for j in range(1, i):
+            space += "  "
+        return space + "|--"
+
+    def get(self, request):
+        cates_all = GoodsCategory.objects.all()
+        cates = self.binddata(cates_all, 0, 1)
+        return render(request, 'goods/goods_add.html', {'cates': cates})
+
+    def post(self, request):
+        good_dict = dict()
+        good_dict['name'] = request.POST.get('name', '')
+        cate_id = request.POST.get('parent_id', '')
+        if cate_id:
+            good_dict['category'] = GoodsCategory.objects.filter(id=cate_id)
+        good_dict['market_price'] = request.POST.get('market_price', '0')
+        good_dict['price'] = request.POST.get('price', '0')
+        good_dict['goods_desc'] = request.POST.get('goods_desc', '')
+        good_dict['main_img'] = request.POST.get('main_img', '')
+        message = '字段需要填写'
+        if not good_dict['name']:
+            message = '请输入姓名'
+        r = Goods.objects.create(**good_dict)
+        print(r)
+        return redirect(reverse('good_index'))
+
+
+def ajax_goods(request):
+    cate_id = request.POST.get('cate_id', '')
+    goodname = request.POST.get('goodname', '')
+    status = request.POST.get('status')
+    search_dict = dict()
+    if cate_id:
+        search_dict['category'] = cate_id
+    if goodname:
+        search_dict['name__contains'] = goodname
+    if status:
+        search_dict['status'] = status
+    page_size = 2
+    page = int(request.GET['page'])
+    total = Goods.objects.filter(**search_dict).count()
+    goods = Goods.objects.filter(**search_dict).order_by('-id')[(page - 1) * page_size: page * page_size]
+    rows = []
+    datas = {'total': total, 'row': rows}
+    for good in goods:
+        print(good.category.name)
+        rows.append({
+            'id': good.id,
+            'name': good.name,
+            'market_price': good.market_price,
+            'price': good.price,
+            'category_id': good.category.name,
+            'click_num': good.click_num,
+            'amount': good.amount,
+        })
+    return JsonResponse(datas, safe=False, json_dumps_params={'ensure_ascii': False, 'indent': 4})

apps/goods/views_api.py

@@ -0,0 +1,32 @@
+from rest_framework.decorators import api_view
+from rest_framework.response import Response
+from rest_framework import status
+
+from apps.goods.models import *
+from apps.goods.serializers import *
+
+
+@api_view(['GET', 'POST', 'PUT', 'DELETE'])
+def goods_list(request, *args, **kwargs):
+    if request.method == 'GET':
+        # 获取数据
+        print(args)
+        print(kwargs)
+        print(request.query_params)
+        if _id := request.query_params.get('id'):
+            goods = Goods.objects.filter(id=_id)
+        else:
+            goods = Goods.objects.all()[:10]
+        # 序列化
+        goods_json = GoodsSerializers(goods, many=True)
+        print(goods_json.data)
+        return Response(goods_json.data)
+    elif request.method == 'POST':
+        data = request.data
+        print(data)
+        serializer_data = GoodsSerializers(data=data, many=False)
+        if serializer_data.is_valid():
+            goods = serializer_data.save()
+            return Response(serializer_data.data, status=status.HTTP_201_CREATED)
+        else:
+            return Response(serializer_data.errors, status=status.HTTP_400_BAD_REQUEST)

templates/goods/goods_add.html

@@ -34,7 +34,7 @@
                         <div class="card-body">
                             <div class="form-group">
                                 <label for="id_name">商品名称</label>
-                                <input type="text" class="form-control" placeholder="请输入商品名称" minlength="2"
+                                <input type="text" class="form-control" name="name" placeholder="请输入商品名称" minlength="2"
                                        required id="id_name">
                             </div>
                             <div class="form-group">
@@ -56,7 +56,7 @@
                                 <input type="text" name="price" class="form-control" placeholder="请输入销售价" required
                                        onkeyup="value=value.replace(/[^\d.]/g, '')">
                             </div>
-                            <div class="form-control">
+                            <div class="form-group">
                                 <label for="id_pic_main">商品主图片</label>
                                 <div class="custom-file">
                                     {{ form_obj.logo }}

templates/goods/goods_index.html

@@ -29,7 +29,7 @@
                                 <ul>
                                     <li>
                                         <label>分类：</label>
-                                        <select id="cate_id">
+                                        <label for="cate_id"></label><select id="cate_id">
                                             <option selected value="">请选择...</option>
                                             {% for key,value in cates.items %}
                                                 <option value="{{ key }}">{{ value|safe }}</option>
@@ -89,8 +89,8 @@
                     var temp = {
                         page: (params.offset / params.limit) + 1,
                         cate_id: $('#cate_id').val(),
-                        goodname: $(#goodname).val(),
-                        status: $('status').val()
+                        goodname: $('#goodname').val(),
+                        status: $('#status').val()
                     };
                     return temp;
                 },