I have two attributes, file,url. I want to refer to the file path uploaded by file when the url submission is empty. What should I do? Thank you.
class xxx(models.Model):
file = models.FileField(upload_to=files_path, blank=True, null=True, verbose_name="")
url = models.URLField(default=base_url + , blank=True, null=True, verbose_name="")No, because the ORM mapping has been created when the user submits it, and you can't assign it dynamically. You can only construct it yourself when the user submits it.
`def __init__(self, file_path):` -sharp ?
,.,.you can consider trying the post_save signal and copying the file path if url is empty.
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