def save_form(self, request, form, change):
        """
        Super class ordering is important here - user must get saved first.
        """
        #OwnableAdmin.save_form(self, request, form, change)
        if change==False:
            obj = form.save(commit=False)
            if obj.user_id is None:
                obj.user = request.user 
            DisplayableAdmin.save_form(self, request, form, change)
        else: 
            DisplayableAdmin.save_form(self, request, form, change)

        return DisplayableAdmin.save_form(self, request, form, change)

    def save_form(self, request, form, change):
        """
        Super class ordering is important here - user must get saved first.
        """
        if not request.user.groups.all().filter(name="StoreOwners").count() and not request.user.is_superuser:
            raise ValidationError(_("Unauthorized operation!!"))

        if not change and not request.user.is_superuser:
            blog_posts = BlogPost.objects.published(for_user=request.user).select_related().filter(user=request.user)
            if blog_posts and blog_posts[0]:
                raise ValidationError(_("'%s' has already registered a vendor page" % request.user))

        OwnableAdmin.save_form(self, request, form, change)
        return DisplayableAdmin.save_form(self, request, form, change)

 def save_form(self, request, form, change):
     """
     Super class ordering is important here - user must get saved first.
     """
     OwnableAdmin.save_form(self, request, form, change)
     return DisplayableAdmin.save_form(self, request, form, change)

 def save_form(self, request, form, change):
     OwnableAdmin.save_form(self, request, form, change)
     return DisplayableAdmin.save_form(self, request, form, change)

 def save_form(self, request, form, change):
     """
     Super class ordering is important here - user must get saved first.
     """
     #OwnableAdmin.save_form(self, request, form, change)
     send=False
     
     news_slug=''
     if change==True:
       if request.POST['slug'] != None:
         news_slug=request.POST['slug']
         n_obj=get_object_or_404(NewsPost,slug=request.POST['slug']) 
         if n_obj.status == 1 and request.POST['status']=='2':
            send=True
         
     if change==False:
         slug1=slugify(request.POST['title'])
         alreadynews = NewsPost.objects.filter(slug__icontains=slug1)
         if alreadynews.count()>0:
             print(alreadynews[0].slug)
             old2slug=alreadynews[0].slug
             intslug=old2slug.replace(slug1+"-","")
             intslug1=int(intslug)+1
             
             print(intslug1)
             news_slug=slug1+"-"+str(intslug1)
             # print(news_slug)
             #slug = alreadynews[0].slug 
         else:
             news_slug= slug1
        
         obj = form.save(commit=False)
        
         
         if obj.user_id is None:
             obj.user = request.user 
             obj.slug = news_slug 
         DisplayableAdmin.save_form(self, request, form, change)
     else: 
         DisplayableAdmin.save_form(self, request, form, change)
     
         
     if change==False and request.POST['status'] == '2'  :
         send=True
         
     #new news post send notifications to Secretariat
     if send==True  :
         emailto_all = []
         group=Group.objects.get(name="News Notification group")
         users = group.user_set.all()
         for u in users:
            user_obj=User.objects.get(username=u)
            user_email=user_obj.email
            emailto_all.append(str(user_email))
            #print(user_email)
         category=None
         try:
             category=get_object_or_404(NewsCategory, id=request.POST['categories']).title 
         except:
             print("###################error in category ")
             
                 
         
         if(category!=None and (category == 'Announcements' or category == 'IPPC news' )):
             pdate= request.POST['publish_date_0']
             d = datetime.strptime(pdate, '%Y-%m-%d')
             day_string = d.strftime('%d-%m-%Y')
             subject=''
             text=''
            #subject='IPPC News: a new '+category+' has been posted'      
       
             if  category == 'IPPC news':
                 subject='IPPC News has been posted'     
                 text='<html><body><p>Dear IPPC User,</p><p>a new IPPC News has been posted on the International Phytosanitary Portal (IPP):<br><br> <b>'+ request.POST['title']+'</b></p><p>You can view it from '+day_string+' at the following url: <a href="http://www.ippc.int/news/'+news_slug+'">https://www.ippc.int/news/'+news_slug+'</a></p><p><br>Kind regards,<br><br>The International Plant Protection Convention Secretariat</p></body></html>'
             elif  category == 'Announcements':
                 subject='IPPC announcement has been posted'   
                 text='<html><body><p>Dear IPPC User,</p><p>a new IPPC announcement has been posted on the International Phytosanitary Portal (IPP):<br><br> <b>'+ request.POST['title']+'</b></p><p>You can view it from '+day_string+' at the following url: <a href="http://www.ippc.int/news/'+news_slug+'">https://www.ippc.int/news/'+news_slug+'</a></p><p><br>Kind regards,<br><br>The International Plant Protection Convention Secretariat</p></body></html>'
             
          
             
             notifificationmessage = mail.EmailMessage(subject,text,'[email protected]',  emailto_all, ['[email protected]'])
             notifificationmessage.content_subtype = "html"  
             sent =notifificationmessage.send()
     
     return DisplayableAdmin.save_form(self, request, form, change)

 def changelist_view(self, request, **kwargs):
     kwargs.setdefault('extra_context', {})
     kwargs['extra_context']['page_models'] = \
         self.get_content_models()
     return DisplayableAdmin.changelist_view(self, request,
                                             **kwargs)