關於Django 的上傳功能

雷洛

最近為了新的case ,學了python的web framework - django ,
可是，在Upload 檔案上 server的時候出了問題， 檔案過去了， 可是 居然沒存到database裡面
form 似乎沒有form.save()的功能，

讓我很困惑， 到底是我的form 語法錯誤， 還是說下面的這段code 本身就不是寫來存到database的。

希望有大大可以解答 Q_Q



form 也加了 <form method="POST" action="/xxx/bom/save/" enctype="multipart/form-data" > {% csrf_token %}
MEDIA_ROOT 也設成了/tmp



Models.py

1. from django.db import models
   
2. from django.contrib.auth.models import User
   
3. from django.forms import ModelForm
   
4. from django import forms
   
5. from django.core.files.uploadedfile import SimpleUploadedFile
   
6. 
   
7. class Documents(models.Model):
   
8.     code = models.CharField(max_length=200)
   
9.     name = models.CharField(max_length=200)
   
10.     description = models.TextField()
    
11.     mimetype = models.CharField(max_length=200)
    
12.     owner = models.ForeignKey(User, related_name="note_created_by_user")
    
13.     created_at = models.DateTimeField()
    
14.     archive_reason = models.CharField(max_length=200)   
    
15.     archive_by = models.ForeignKey(User, related_name="note_created_by_archive")
    
16.    
    
17.     def __unicode__(self):
    
18.         return self.name
    
19.    
    
20. 
    
21. class DocumentsForm(ModelForm):
    
22.     class Meta:
    
23.         model = Documents
    
24.         exclude = ('owner', 'archive_by',)
    
25. 
    
26. class DocumentHistory(models.Model):
    
27.     document = models.ForeignKey(Documents)
    
28.     created_at = models.DateTimeField(max_length=200)
    
29.     version = models.CharField(max_length=200)
    
30.     status = models.CharField(max_length=200)
    
31.    
    
32.     def __unicode__(self):
    
33.         return self.document
    
34.         
    
35. class VersionControl(models.Model):
    
36.     document = models.ForeignKey(Documents)
    
37.     file_size = models.IntegerField()
    
38.     created_at = models.DateTimeField()
    
39.     version = models.CharField(max_length=200)
    
40.     path = models.FileField(upload_to='upload/',blank=True,null=True)
    
41.     description = models.TextField()
    
42.     user = models.ForeignKey(User)
    
43.    
    
44.     def __unicode__(self):
    
45.         return self.description
    
46. 
    
47. 
    
48. class VersionControlForm(forms.Form):
    
49.     document = models.CharField()
    
50.     file_size = forms.CharField(max_length=200)
    
51.     created_at = forms.DateTimeField()
    
52.     version = forms.CharField(max_length=200)
    
53.     path = forms.FileField()
    
54.     description = forms.CharField()
    
55.     user_id = models.CharField()

复制代码

Views.py

1. from django import forms
   
2. from django.contrib.auth.models import User
   
3. from dms.documents.models import Documents,DocumentsForm,VersionControlForm
   
4. from dms.documents.models import VersionControlForm
   
5. from django.forms.formsets import formset_factory
   
6. from django.forms.models import modelformset_factory
   
7. from django.shortcuts import render_to_response
   
8. from django.http import HttpResponse
   
9. from django.http import HttpResponseRedirect
   
10. from django.shortcuts import render_to_response
    
11. from datetime import date
    
12. from django.core.context_processors import csrf
    
13. 
    
14. 
    
15. def say(request):
    
16.     return HttpResponse("Test Say.")
    
17. 
    
18. 
    
19. 
    
20.                
    
21. def document_manage(request):
    
22.     DocumentsFormSet = formset_factory(DocumentsForm)
    
23.     data = {
    
24.         'form-TOTAL_FORMS': u'2',
    
25.         'form-INITIAL_FORMS': u'0',
    
26.         'form-MAX_NUM_FORMS': u'',
    
27. 
    
28.     }
    
29.    
    
30.     if request.method == 'GET':
    
31. 
    
32.         form = DocumentsForm(request.GET)
    
33. 
    
34.         if form.is_valid():
    
35.             form.save()
    
36.     else:
    
37.         form=DocumentsForm()
    
38.     return render_to_response('bom.html',{
    
39.         'form':form,
    
40.     })       
    
41. 
    
42.    
    
43. def version_control(request):
    
44.     if request.method == 'POST':
    
45.         form = VersionControlForm(request.POST, request.FILES)
    
46.         form.user_id = User.objects.get(pk=request.session.get('_auth_user_id'))
    
47.         form.document = User.objects.get(pk=request.session.get('_auth_user_id'))
    
48.         if form.is_valid():
    
49.             
    
50.             handle_uploaded_file(request.FILES['path'])
    
51.             return HttpResponseRedirect('/DMS/bom/')
    
52.         else:
    
53.             form = VersionControlForm()
    
54.         return render_to_response('document.html',{'form':form})
    
55. 
    
56. def handle_uploaded_file(f):
    
57.     destination = open('tmp/upload/%s'%f.name, 'wb+')
    
58.     for chunk in f.chunks():
    
59.         destination.write(chunk)
    
60.     destination.close()   

复制代码

雷洛

啊 ， 成功了= =
用ModelForm 來做， 不要用Forms.Form 來做就可以了。



不過， 有人知道不用ModelForms  ,  直接用Forms 做得出來的方法嗎@@？