python - “ImageField”对象没有属性“_committed”

Question

我正在尝试从 django 管理面板将数据添加到模型类。单击“保存”按钮后，我收到此错误：

AttributeError at /admin/filmapp/movies/add/
'ImageField' object has no attribute '_committed'

我尝试了这个解决方案，但不幸的是它对我不起作用： 覆盖保存方法 - 'ImageFile' 对象没有属性 '_committed'

这是我的代码：admin.py

from django.contrib import admin

from .models import Movies
admin.site.register(Movies)

模型.py

class Movies(models.Model):
    title = models.CharField(max_length=50, null=True, blank=False)
    year = models.PositiveIntegerField(null=True, blank=False)
    description = models.TextField(null=True, blank=False)
    rating = models.FloatField(null=True, blank=True)
    img = models.ImageField(upload_to='static/img')
    url = models.CharField(max_length=1000, null=True, blank=False)
    img_video = models.ImageField(upload_to='static/img/imgvideo', default=img)

这是完整的追溯：

Environment:


Request Method: POST
Request URL: http://127.0.0.1:8000/admin/filmapp/movies/add/

Django Version: 3.1.7
Python Version: 3.8.5
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'filmapp.apps.FilmappConfig']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware']



Traceback (most recent call last):
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/core/handlers/exception.py", line 47, in inner
    response = get_response(request)
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/core/handlers/base.py", line 181, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/contrib/admin/options.py", line 614, in wrapper
    return self.admin_site.admin_view(view)(*args, **kwargs)
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/utils/decorators.py", line 130, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/views/decorators/cache.py", line 44, in _wrapped_view_func
    response = view_func(request, *args, **kwargs)
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/contrib/admin/sites.py", line 233, in inner
    return view(request, *args, **kwargs)
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/contrib/admin/options.py", line 1653, in add_view
    return self.changeform_view(request, None, form_url, extra_context)
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/utils/decorators.py", line 43, in _wrapper
    return bound_method(*args, **kwargs)
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/utils/decorators.py", line 130, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/contrib/admin/options.py", line 1534, in changeform_view
    return self._changeform_view(request, object_id, form_url, extra_context)
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/contrib/admin/options.py", line 1580, in _changeform_view
    self.save_model(request, new_object, form, not add)
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/contrib/admin/options.py", line 1093, in save_model
    obj.save()
  File "/home/cristian/PycharmProjects/filmorix/filmproject/filmapp/models.py", line 18, in save
    super(Movies, self).save(*args, **kwargs)
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/db/models/base.py", line 753, in save
    self.save_base(using=using, force_insert=force_insert,
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/db/models/base.py", line 790, in save_base
    updated = self._save_table(
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/db/models/base.py", line 895, in _save_table
    results = self._do_insert(cls._base_manager, using, fields, returning_fields, raw)
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/db/models/base.py", line 933, in _do_insert
    return manager._insert(
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/db/models/manager.py", line 85, in manager_method
    return getattr(self.get_queryset(), name)(*args, **kwargs)
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/db/models/query.py", line 1254, in _insert
    return query.get_compiler(using=using).execute_sql(returning_fields)
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/db/models/sql/compiler.py", line 1396, in execute_sql
    for sql, params in self.as_sql():
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/db/models/sql/compiler.py", line 1339, in as_sql
    value_rows = [
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/db/models/sql/compiler.py", line 1340, in <listcomp>
    [self.prepare_value(field, self.pre_save_val(field, obj)) for field in fields]
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/db/models/sql/compiler.py", line 1340, in <listcomp>
    [self.prepare_value(field, self.pre_save_val(field, obj)) for field in fields]
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/db/models/sql/compiler.py", line 1291, in pre_save_val
    return field.pre_save(obj, add=True)
  File "/home/cristian/Anaconda3/lib/python3.8/site-packages/django/db/models/fields/files.py", line 305, in pre_save
    if file and not file._committed:

Exception Type: AttributeError at /admin/filmapp/movies/add/
Exception Value: 'ImageField' object has no attribute '_committed'

标签： pythondjango