tjcsl/ion

import logging

from django import forms
from django.conf import settings

logger = logging.getLogger(__name__)


class UploadFileForm(forms.Form):
    def validate_size(self):
        filesize = self.file.__sizeof__()
        if filesize > settings.FILES_MAX_UPLOAD_SIZE:
            raise forms.ValidationError(
                "The file uploaded is above the maximum upload size ({}MB). "
                "Use a desktop client to upload this file.".format(settings.FILES_MAX_UPLOAD_SIZE / 1024 / 1024)
            )

    file = forms.FileField(validators=[validate_size])