Question

我的观点： ''' 从django.shortcuts导入渲染从django.http导入HttpResponse 来自.models import Post 从.forms导入createPostForm

def showPosts(request):
    if request.method == "POST":
        crf = createPostForm(request.POST)

        crf.author = request.user
        crf.save()


    else:
        crf = createPostForm()
    context = {
        'post' : Post.objects.all(),
        'crf' : crf

    }
    return render(request, 'Content/FeedsPage.html', context)

'''

我的模特： '''

from django.db import models
from django.contrib.auth.models import User
class Post(models.Model):
    # image = models.ImageField(blank=True, null=True, upload_to='post_images/')
    # video = models.FileField(blank=True, null=True, upload_to='post_videos/')
    title = models.CharField(max_length=100)
    description = models.CharField(blank=True, max_length=1000)
    date_posted = models.DateTimeField(auto_now_add=True)
    author = models.ForeignKey(User, on_delete=models.CASCADE)

    def __str__(self):
        return self.title

'''

我的模板：

'''

<form enctype="multipart/form-data" novalidate method="post">
                    {%csrf_token%}
                    <div class="fieldWrapper">
                        {{crf.title.errors}}
                        {{crf.title}}
                    </div>
                    <div class="fieldWrapper">
                        {{crf.description.errors}}
                        {{crf.description}}
                    </div>
                    <button class="primaryButton" type="submit">submit</button>
                </form>

''' 我的表格：

'''

from django import forms
from .models import Post
class createPostForm(forms.ModelForm):

    title = forms.CharField(
        widget = forms.TextInput(attrs={
        'placeholder': 'Give a sweet title',
        'autocomplete' :'off'
        })
    )
    description = forms.CharField(widget=forms.TextInput(attrs={
        'placeholder': 'Please elaborate a little',
        'autocomplete' :'off'
        }))

    class Meta:
        model = Post
        fields = '__all__'

'''

我删除了is_valid（）函数以查看发生了什么并相应地显示了它 “无法创建帖子，因为数据未通过验证”

请有人帮助

Answer 1

此save（）方法接受可选的commit关键字参数，该参数接受True或False。如果使用commit = False调用save（），它将返回一个尚未保存到数据库的对象。在实际保存之前，对于某些后期处理而言，这很不错！因此，您的方法应如下所示。

def showPosts(request):
if request.method == "POST":
    crf = createPostForm(request.POST)

    if crf.is_valid():

    form = crf.save(commit=False)
    form.author = request.user
    form.save()


else:
    crf = createPostForm()
context = {
    'post' : Post.objects.all(),
    'crf' : crf

}
return render(request, 'Content/FeedsPage.html', context)

即使一切似乎没事，Django表单也无法保存

1 个答案: