django之CreateView

模型

from .BaseModel import BaseModel
from django.db import models
from django.urls import reverse

class AdvPosition(BaseModel):
    name = models.CharField(max_length=255, help_text = "广告位名称")

    def get_absolute_url(self):
        return reverse('backend:adv-position-index')

    class Meta(BaseModel.Meta):
        db_table =  'adv_position'

模型中需要设定跳转地址，在保存成功后会根据这个地址跳转。

url

path('adv-position/create', AdvPositionCreateView.as_view(), name = 'adv-position-create'),

由于model使用了app_name

所以需要再urls.py中添加

app_name = 'backend'

create.html

<form class="form-horizontal" action="{{ request.get_full_path }}" method="post">
    {% csrf_token %}
   
  <div class="card-body">
    {{ form.as_ul }}
  </div>
  <div class="card-footer">
    <input type="submit" class="btn btn-info" value="submit" />
  </div>
</form>

view

为什么把view放最后呢，因为view有很多中方式

可以用面向过程的方式，在view.py中直接写，主要说下面向对象方式

diango提供了一个CreateView，使用这个可以很方便的做form的添加

方式1：

class AdvPositionCreateView(CreateView):
    model = AdvPosition # 指定模型
    template_name = 'adv-position/create.html'
    fields = ['name']

fields指定表单字段。

方式2：

需要ModelForm，

from django import forms 
from common.models import AdvPosition

class AdvPositionForm(forms.ModelForm):
    class Meta:
        model = AdvPosition
        fields = ['name']

ModelForm需要指定fields，用于指定表单字段。

class AdvPositionCreateView(CreateView):
    model = AdvPosition # 指定模型
    template_name = 'adv-position/create.html'
    form_class = AdvPositionForm

方式3：

使用get，post

class AdvPositionCreateView(CreateView):
    model = AdvPosition # 指定模型
    template_name = 'adv-position/create.html'
    form_class = AdvPositionForm

    def get(self, request, *args, **kwargs):
        form = self.form_class()
        return render(request, 'adv-position/create.html', {'form': form})

    def post(self, request, *args, **kwargs):
        form = self.form_class(request.POST)
        if form.is_valid():
            form.save()
            return redirect('/backend/adv-position/index')
        return render(request, 'adv-position/create.html', {'form': form})

方式4：

使用get，post

class AdvPositionCreateView(CreateView):
    model = AdvPosition # 指定模型
    template_name = 'adv-position/create.html'

    def get(self, request, *args, **kwargs):
        form = AdvPositionForm()
        return render(request, 'adv-position/create.html', {'form': form})

    def post(self, request, *args, **kwargs):
        form = AdvPositionForm(request.POST)
        if form.is_valid():
            form.save()
            return redirect('/backend/adv-position/index')
        return render(request, 'adv-position/create.html', {'form': form})

django之CreateView

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