On Sun, May 3, 2009 at 9:15 AM, Sanket Agarwal <snktagar...@gmail.com>wrote:
>
> <snip>
> class Files(models.Model):
>
> """Uploads area, all files to be ready for user use are put here"""
>
>
> filepath = models.FilePathField(_('Choose File'),path="/home/sanket/
> Music")
> filedescription = models.CharField(_('File
> Description'),max_length=100)
> filetype = models.CharField(_('File
> Type'),max_length=1,choices=FILETYPE_CHOICE)
>
> fileuploadtime = models.DateTimeField(_('File Upload Time'))
>
> def __unicode__(self):
> return self.filepath
>
> class Admin:
> list_display =
> ('filepath','filesize','fileuploaddate','fileuploadtime')
> list_filter = ('fileuploaddate')
>
> def getSizeFromFilePath(filepath):
> return os.path.getsize(filepath)
>
> filesize = getSizeFromFilePath(filepath)
>
A few things. One if you want a method to be available outside a class, the
first argument is always 'self', which is the class instance itself. That is
why the filepath isn't working there. Second to add a property to a class
you need to declare it as a property, otherwise you are changing the class
itself, not the instance.
Take a look at the class documentation:
http://docs.python.org/tutorial/classes.html
and the property builtin:
http://docs.python.org/library/functions.html#property
Other than that, that appears to be the right idea to accomplish what you
are looking for.
I hope that helps,
Michael
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