ImageField/FileField Django表单当前无法修剪文件名的路径 [英] ImageField / FileField Django form Currently unable to trim the path to filename

问题描述

我有一个存储在AWS S3中的ImageField(类似于FileField).在表单中，它具有显示图像文件路径的当前"标签.我想修剪一下，只显示文件名.

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.

请参考 Django中的最新答案:自定义FileField值在编辑模型时，我仍然无法使它正常工作.

referring to the latest answer in Django : customizing FileField value while editing a model, I still cant get it to work.

显示当前"，其文件路径名称如下: https://imgur.com/a/xkUZi

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())

我怎么有这样的东西:当前:filename.jpg

How can I have something like this: Currently: filename.jpg

仅供参考-ImageField/FileField，我尝试了两者都没有影响. 我正在使用Django == 1.11.7

FYI - ImageField / FileField, I tried both it doesnt make a difference. Im using Django==1.11.7

推荐答案

在Django 1.11.x中已弃用get_template_substitution_values. CustomClearableFileInput的新实现如下:

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

这篇关于ImageField/FileField Django表单当前无法修剪文件名的路径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！