allow tags to contain chars, not only English alphabet (#801)

* allow tags to contain chars, not only English alphabet

files/views.py

@@ -9,7 +9,6 @@ from django.core.mail import EmailMessage
 from django.db.models import Q
 from django.http import HttpResponseRedirect
 from django.shortcuts import get_object_or_404, render
-from django.template.defaultfilters import slugify
 from drf_yasg import openapi as openapi
 from drf_yasg.utils import swagger_auto_schema
 from rest_framework import permissions, status
@@ -30,7 +29,7 @@ from cms.permissions import IsAuthorizedToAdd, IsUserOrEditor, user_allowed_to_u
 from users.models import User
 
 from .forms import ContactForm, MediaForm, SubtitleForm
-from .helpers import clean_query, produce_ffmpeg_commands
+from .helpers import clean_query, get_alphanumeric_only, produce_ffmpeg_commands
 from .methods import (
     check_comment_for_mention,
     get_user_or_session,
@@ -182,7 +181,8 @@ def edit_media(request):
                 media.tags.remove(tag)
             if form.cleaned_data.get("new_tags"):
                 for tag in form.cleaned_data.get("new_tags").split(","):
-                    tag = slugify(tag)
+                    tag = get_alphanumeric_only(tag)
+                    tag = tag[:99]
                     if tag:
                         try:
                             tag = Tag.objects.get(title=tag)