forms.py
from django import forms
from .models import Posts
class PostForm(forms.ModelForm):
class Meta:
model = Posts
fields = ['topic','post','thumbnail','author']
models.py
class Posts(models.Model):
topic = models.ForeignKey(Topic,on_delete=models.CASCADE)
post = models.TextField()
date = models.DateTimeField(auto_now_add=True)
author = models.ForeignKey(Author,on_delete=models.CASCADE)
thumbnail = models.ImageField()
def __str__(self):
return f"{self.post[:20]}..."
class Meta:
verbose_name_plural = 'posts'
views.py
def add_post(request):
if request.method == 'POST':
form = PostForm(data=request.POST)
if form.is_valid():
form.save()
return redirect("/")
else:
form=PostForm()
context = {'form':form}
return render(request,'blog/add_post.html',context)
add_post.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<form action="{% url 'blog:add_post' %}" method='post'>
{% csrf_token %}
{{form.as_p}}
<input type='submit'>
</form>
</body>
</html>
当我尝试提交表单时，即使我选择了文件，缩略图字段也会自动显示“未选择文件”。所以请帮我解决这个问题! when i try to submit it shows "No file chosen" even when i chose
最佳答案
您必须添加 upload_to:
item_image = models.ImageField(
blank = True,
null = True,
upload_to = 'item/image/',
db_column = 'ITEM_IMAGE',
verbose_name = 'IMAGE',
)
记住分配媒体文件的路径:(在settings.py上)
MEDIA_URL = '/media/'
MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
在 forms.py 中:
item_image = forms.ImageField(
required = False,
label = 'Image',
widget = forms.ClearableFileInput(
attrs = {'class': 'form-control mb-2', 'placeholder':
'IMAGE',}
),
)
这是我的 github，其中有一个 django 项目可以指导您:
关于python - 我想使用 django 中的默认形式将图像上传到数据库，但图像未上传。它显示 "No file chosen"，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/59841869/