问题
I have a ImageField that stores in AWS S3 (similar to FileField). In the form, it has this "Currently" label that shows the image file path. I would like to trim and just show the filename.
referring to the latest answer in Django : customizing FileField value while editing a model, I still cant get it to work.
It shows "Currently" with the file path name like this: https://imgur.com/a/xkUZi
form.py
class CustomClearableFileInput(ClearableFileInput):
def get_template_substitution_values(self, value):
"""
Return value-related substitutions.
"""
logging.debug("CustomClearableFileInput %s",value) <-- it never came here
return {
'initial': conditional_escape(path.basename(value.name)),
'initial_url': conditional_escape(value.url),
}
class CompanySettingEdit(forms.ModelForm):
display_companyname = forms.CharField(max_length=50, required=True)
company_logo = forms.ImageField(widget=CustomClearableFileInput)
class Meta:
model = Company
fields = ("display_companyname","company_logo")
model.py
class Company(models.Model):
display_companyname = models.CharField(max_length=50)
company_logo = models.ImageField(upload_to=upload_to('company_logo/'), blank=True, null=True, storage=MediaStorage())
How can I have something like this: Currently: filename.jpg
FYI - ImageField / FileField, I tried both it doesnt make a difference. Im using Django==1.11.7
回答1:
In Django 1.11.x get_template_substitution_values is deprecated. New implementation of CustomClearableFileInput could be as follow:
class CustomClearableFileInput(ClearableFileInput):
def get_context(self, name, value, attrs):
value.name = path.basename(value.name)
context = super().get_context(name, value, attrs)
return context
来源：https://stackoverflow.com/questions/47887158/imagefield-filefield-django-form-currently-unable-to-trim-the-path-to-filename