在Django中上传文件 [英] Uploading files in Django

问题描述

在Django（1.6版）中上传文件时，我有问题。

当我尝试在我的 new_file_data.save（） views.py我得到这个错误：

/ quiz / patient / 22 / medical_record / 2 /考试/ 的AttributeError

'list'对象没有属性'startswith'

这是我的代码：

models.py

  class ComplementaryExam（models.Model）：
诊断= models.ForeignKey（Diagnosis，null = False，blank = False）
 date = models.DateField（null = False，blank = False）
 description = models.CharField（max_length = 50，null = False，blank = False 
 
 class ExamFile（models.Model）：
 exam = models.ForeignKey（ComplementaryExam，null = False）
 content = models.FileField（upload_to = documents /％Y /％m /％d）
  

forms.py

  class ExamFileForm（ModelForm）：
类Meta：
 model = ExamFile 
 fields = ['content'] 
  

settings.py

  MEDIA_ROOT = [os.path.join（BASE_DIR，'media'）] 
 MEDIA_ROOT_URL ='/ media /'
  

views.py

  def exam_create（request，patient_id，record_id，template_name =quiz / exams.html）：
 
 form = ComplementaryExamForm（request.POST或None）
 
d = Diagnosis.objects.get（pk = record_id）
p = Patient.objects.get（number_record = patient_id）
 
如果request.method ==POST：
 file_form = ExamFileForm（request.POST，request.FILES）
 
如果form.is_valid（）：
 new_complementary_exam = form.save（commit = False）
 new_complementary_exam.diagnosis = d 
 new_complementary_exam.save（）
 
如果file_form.is_valid（）：
 new_ file_data = file_form.save（commit = False）
 new_file_data.exam = new_complementary_exam 
 new_file_data.save（）
 
 messages.success（请求，'Exame salvo com sucesso。 
 redirect_url = reverse（medical_record_new，args =（p.number_record，））
 return HttpResponseRedirect（redirect_url +？currentTab = 3）
 else：
 messages.error （请求，'Nãofoipossívelcriar exame。'）
 else：
 file_form = ExamFileForm（request.POST）
 
 return render（request，template_name，{'complementary_exam_form'表单
'patient_id'：patient_id，'name_patient'：p.name_txt，
'record_id'：record_id，'file_form'：file_form}）
  pre> 
 
 
  exams.html  
  < div class =row> 
< div class =col-xs-6 col-sm-4> 
< div class =form-group> 
< label> Anexos< / label> 
< div class =input-group input-group-sm> 
 {{file_form.content}} 
< / div> 
< / div> 
< / div> 
< / div> 
  
有谁知道如何解决这个问题？ 
 
 
 
 编辑： 
这是我从网页上获得的追溯。
 环境：
 
请求方法：POST 
请求URL：http：// localhost：8000 / quiz / patient / 22 / medical_record / 1 / exams / 
 
 Django版本：1.6.5 
 Python版本：2.7.5 
安装的应用程序：
（'django.contrib.admin'，
'django.contrib.auth'，
'django.contrib.contenttypes'，
'django.contrib.sessions'，
'django.contrib.messages'，
'django.contrib.staticfiles'，
'quiz'）
安装的中间件：
（'django.contrib.sessions.middleware.SessionMiddleware'，
'django.middleware。 common.CommonMiddleware'，
'django.middleware.csrf.CsrfViewMiddleware'，
'django.contrib.auth.middleware.AuthenticationMiddleware'，
'django.middleware.locale.LocaleMiddleware'，
'django.contrib.messages.middleware.MessageMiddleware'，
'django.middlewa re.clickjacking.XFrameOptionsMiddleware'）
 
 
追溯：
文件/Library/Python/2.7/site-packages/django/core/handlers/base.pyin get_response 
 112. response = wrapped_callback（request，* callback_args，** callback_kwargs）
文件/Network/Servers/macserver.numec.prp.usp.br/Users/larissamoraes/Documents/Neuromat/patientregistrationsystem/在test_create 
中的qdc / quiz / views.py616. new_file_data.save（）
保存文件/Library/Python/2.7/site-packages/django/db/models/base.py 
 545. force_update = force_update，update_fields = update_fields）
 save_base 
中的文件/Library/Python/2.7/site-packages/django/db/models/base.py573.已更新= self._save_table（raw，cls，force_insert，force_update，using，update_fields）
 _save_table中的文件/Library/Python/2.7/site-packages/django/db/models/base.py
 result = self._do_insert（cls._base_manager，using，fel ds，update_pk，raw）
 _do_insert 
中的文件/Library/Python/2.7/site-packages/django/db/models/base.py687. using = using，raw = raw）
文件/Library/Python/2.7/site-packages/django/db/models/manager.pyin _insert 
 232. return insert_query（self.model，objs，fields，** kwargs）
文件/Library/Python/2.7/site-packages/django/db/models/query.pyin insert_query 
 1514. return query.get_compiler（using = using）.execute_sql（return_id）
文件/Library/Python/2.7/site-packages/django/db/models/sql/compiler.py在execute_sql 
 902.对于sql，params in self.as_sql（）：
文件/Library/Python/2.7/site-packages/django/db/models/sql/compiler.pyin as_sql 
 860.对于obj in self.query.objs 
文件/ Library / pre_save 
中的Python / 2.7 / site-packages / django / db / models / fields / files.py252. file.save（file.name，file，save = False）
文件/ Library /Python/2.7/site-packages/django/db/m odels / fields / files.py保存
 86. self.name = self.storage.save（name，content）
文件/Library/Python/2.7/site-packages/django/core /files/storage.py保存
 49. name = self._save（name，content）
文件/Library/Python/2.7/site-packages/django/core/files/storage。 pyin _save 
 209. locks.unlock（fd）
文件/Library/Python/2.7/site-packages/django/core/files/locks.pyin unlock 
 59 。fcntl.lockf（fd（file），fcntl.LOCK_UN）
 
异常类型：/ errors / patient / 22 / medical_record / 1 / exams / 
中的IOError异常值：[Errno 45 ]不支持操作
  
 
 
解决方案
   MEDIA_ROOT  应该是一个字符串，不是一个列表。
  MEDIA_ROOT = os.path.join（BASE_DIR，'media'）
  
 
I have problems when uploading files in Django (1.6 version).

When I try to do new_file_data.save() in my views.py I get this error:

AttributeError at /quiz/patient/22/medical_record/2/exams/

'list' object has no attribute 'startswith'

Here is my code:

models.py
class ComplementaryExam(models.Model):
    diagnosis = models.ForeignKey(Diagnosis, null=False, blank=False)
    date = models.DateField(null=False, blank=False)
    description = models.CharField(max_length=50, null=False, blank=False)

class ExamFile (models.Model):
    exam = models.ForeignKey(ComplementaryExam, null=False)
    content = models.FileField(upload_to="documents/%Y/%m/%d")
forms.py
class ExamFileForm(ModelForm):
    class Meta:
        model = ExamFile
        fields = ['content']
settings.py
MEDIA_ROOT = [os.path.join(BASE_DIR, 'media')]
MEDIA_ROOT_URL = '/media/'
views.py
def exam_create(request, patient_id, record_id, template_name="quiz/exams.html"):

    form = ComplementaryExamForm(request.POST or None)

    d = Diagnosis.objects.get(pk=record_id)
    p = Patient.objects.get(number_record=patient_id)

    if request.method == "POST":
        file_form = ExamFileForm(request.POST, request.FILES)

        if form.is_valid():
            new_complementary_exam = form.save(commit=False)
            new_complementary_exam.diagnosis = d
            new_complementary_exam.save()

            if file_form.is_valid():
                new_file_data = file_form.save(commit=False)
                new_file_data.exam = new_complementary_exam
                new_file_data.save()

            messages.success(request, 'Exame salvo com sucesso.')
            redirect_url = reverse("medical_record_new", args=(p.number_record,))
            return HttpResponseRedirect(redirect_url + "?currentTab=3")
        else:
            messages.error(request, 'Não foi possível criar exame.')
    else:
        file_form = ExamFileForm(request.POST)

    return render(request, template_name, {'complementary_exam_form': form,
               'patient_id': patient_id, 'name_patient': p.name_txt,
               'record_id': record_id, 'file_form': file_form})
exams.html
<div class="row">
    <div class="col-xs-6 col-sm-4">
        <div class="form-group">
            <label>Anexos</label>
            <div class="input-group  input-group-sm">
                {{ file_form.content }}
            </div>
        </div>
    </div>
</div>
Does anyone know how to fix this? 

EDIT:
This is the traceback that I got now from the webpage.
Environment:

Request Method: POST
Request URL: http://localhost:8000/quiz/patient/22/medical_record/1/exams/

Django Version: 1.6.5
Python Version: 2.7.5
Installed Applications:
('django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'quiz')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.middleware.locale.LocaleMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware')


Traceback:
File "/Library/Python/2.7/site-packages/django/core/handlers/base.py" in get_response
  112.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/Network/Servers/macserver.numec.prp.usp.br/Users/larissamoraes/Documents/Neuromat/patientregistrationsystem/qdc/quiz/views.py" in exam_create
  616.                 new_file_data.save()
File "/Library/Python/2.7/site-packages/django/db/models/base.py" in save
  545.                        force_update=force_update, update_fields=update_fields)
File "/Library/Python/2.7/site-packages/django/db/models/base.py" in save_base
  573.             updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields)
File "/Library/Python/2.7/site-packages/django/db/models/base.py" in _save_table
  654.             result = self._do_insert(cls._base_manager, using, fields, update_pk, raw)
File "/Library/Python/2.7/site-packages/django/db/models/base.py" in _do_insert
  687.                                using=using, raw=raw)
File "/Library/Python/2.7/site-packages/django/db/models/manager.py" in _insert
  232.         return insert_query(self.model, objs, fields, **kwargs)
File "/Library/Python/2.7/site-packages/django/db/models/query.py" in insert_query
  1514.     return query.get_compiler(using=using).execute_sql(return_id)
File "/Library/Python/2.7/site-packages/django/db/models/sql/compiler.py" in execute_sql
  902.         for sql, params in self.as_sql():
File "/Library/Python/2.7/site-packages/django/db/models/sql/compiler.py" in as_sql
  860.                 for obj in self.query.objs
File "/Library/Python/2.7/site-packages/django/db/models/fields/files.py" in pre_save
  252.             file.save(file.name, file, save=False)
File "/Library/Python/2.7/site-packages/django/db/models/fields/files.py" in save
  86.         self.name = self.storage.save(name, content)
File "/Library/Python/2.7/site-packages/django/core/files/storage.py" in save
  49.         name = self._save(name, content)
File "/Library/Python/2.7/site-packages/django/core/files/storage.py" in _save
  209.                         locks.unlock(fd)
File "/Library/Python/2.7/site-packages/django/core/files/locks.py" in unlock
  59.         fcntl.lockf(fd(file), fcntl.LOCK_UN)

Exception Type: IOError at /quiz/patient/22/medical_record/1/exams/
Exception Value: [Errno 45] Operation not supported

解决方案
MEDIA_ROOT should be a string, not a list.
MEDIA_ROOT = os.path.join(BASE_DIR, 'media')


                        
这篇关于在Django中上传文件的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！