Django上传多张图片

我一直试图让这两天现在。我创建的网站能够上传一个图像文件，但我希望能够上传更多的图像文件，这些图像文件都连接到相同的主要模型。这是我有一个图片上传： forms.py：从Django的进口形式Django上传多张图片

from .models import Exam 

class ExamForm(forms.ModelForm): 
    class Meta: 
     model = Exam 
     fields = ['exam_number', 'exam_file'] 
     widgets = { 
     'exam_number': forms.NumberInput(
      attrs={'id': 'exam_number', 'required': True,}) 
     }

Models.py：

from django.db import models 
from django.contrib.auth.models import User 
from django.template.defaultfilters import slugify 
from datetime import datetime 
from django.core.validators import MaxValueValidator, MinValueValidator 

class Exam(models.Model): 
    exam_number = models.PositiveIntegerField(validators=[MaxValueValidator(6),MinValueValidator(1)]) 
    exam_path = models.CharField(max_length=255) 
    exam_file = models.ImageField() #i want to be able to upload more of these 
    exam_date = models.DateTimeField(auto_now_add=True) 
    exam_user = models.ForeignKey(User, null=True) 

    def __str__(self): 
     return self.exam_path 

    def __int__(self): 
     return self.exam_number

views.py：

def create_exam(request, letnik_id, classes_id, subject_id): 
    response_data = {} 
    if subject_id in SUBJECTS: 
     path = letnik_id + '/' + classes_id + '/' + subject_id 
     form = ExamForm(request.POST or None, request.FILES or None) 
     if form.is_valid(): 
      exam = form.save(commit=False) 
      exam.exam_user = request.user 
      exam.exam_path = path 
      exam.exam_file = request.FILES['exam_file'] 
      file_type = exam.exam_file.url.split('.')[-1] 
      file_type = file_type.lower() 
      if file_type not in IMAGE_FILE_TYPES: 
       context = { 
       'error_message': 'error', 
       } 
       return Http404("Napaka") 
      if Exam.objects.filter(exam_path=path, exam_number=exam.exam_number): 
       context = { 
       'form': form, 
       'error_message': 'error', 
       } 
       return render(request, 'tests.html', context) 
      exam.save() 
      return redirect('subject_id', letnik_id=letnik_id, classes_id=classes_id, subject_id=subject_id) 
     context = { 
     "form": form 
     } 
     raise Http404("error") 
    raise Http404("error")

我听说最好为文件制作分离的模型，但我不知道如何制作可以连接到父级（考试）模型的视图。帮助表示赞赏！

来源

2017-04-13 zzbil

你需要创建一个单独的模型，将是这个样子

class ExamFile(models.Model): 
     file = models.ImageField() 
     exam = models.ForeignKey(Exam, null=False)

然后在您的视图，而不是添加到exam_file考试，你会用它代替创建这种新模式。这将是这个样子

from .models import Exam, ExamFile 
... 
exam_file = ExamFile.objects.create(
        file = request.FILES['exam_file'], 
        exam=exam 
      )

欲了解更多有关固定起来的表格，你可以检查出的文档中发现here

来源

2017-04-13 20:11:11 Written

Django上传多张图片

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