fixed multiple file upload

akarpov/common/forms.py

@@ -0,0 +1,18 @@
+from django import forms
+
+class MultipleFileInput(forms.ClearableFileInput):
+    allow_multiple_selected = True
+
+
+class MultipleFileField(forms.FileField):
+    def __init__(self, *args, **kwargs):
+        kwargs.setdefault("widget", MultipleFileInput())
+        super().__init__(*args, **kwargs)
+
+    def clean(self, data, initial=None):
+        single_file_clean = super().clean
+        if isinstance(data, (list, tuple)):
+            result = [single_file_clean(d, initial) for d in data]
+        else:
+            result = single_file_clean(data, initial)
+        return result

akarpov/music/forms.py

@@ -1,9 +1,12 @@
 from django import forms
 
+from akarpov.common.forms import MultipleFileField
+
 
 class TracksLoadForm(forms.Form):
     address = forms.CharField(max_length=500)
 
 
+
 class FileUploadForm(forms.Form):
-    file = forms.FileField(widget=forms.ClearableFileInput(attrs={"multiple": True}))
+    file = MultipleFileField()