In Django how do I check if a user is in a certain group

Question

I created a custom group in Django s admin site   In my code  I want to check if a user is in this group  How do I do that

User · Answer

I did it like this  For group named Editor     views py def index request       current user groups   request user groups values list  name   flat True      context              is editor    Editor  in current user groups            return render request   index html   context    template    index html    if is editor       lt h1 gt Editor tools lt  h1 gt     endif

User · Answer

In one line    Groupname  in user groups values list  name   flat True    This evaluates to either True or False

User · Answer

If you don t need the user instance on site  as I did   you can do it with  User objects filter pk userId  groups  name  Editor   exists     This will produce only one request to the database and return a boolean

User · Answer

You can access the groups simply through the groups attribute on User   from django contrib auth models import User  Group  group   Group name    Editor   group save                        save this new group for this example user   User objects get pk   1    assuming  there is one initial user  user groups add group             user is now in the  Editor  group   then user groups all   returns   lt Group  Editor gt     Alternatively  and more directly  you can check if a a user is in a group by   if django user groups filter name   groupname  exists               Note that groupname can also be the actual Django Group object

User · Answer

You just need one line   from django contrib auth decorators import user passes test     user passes test lambda u  u groups filter name  companyGroup   exists    def you view        return HttpResponse  Since you re logged in  you can see this text

User · Answer

If you need the list of users that are in a group  you can do this instead   from django contrib auth models import Group users in group   Group objects get name  group name   user set all     and then check   if user in users in group         do something   to check if the user is in the group

User · Answer

User objects filter username  tom   groups  name  admin   exists    That query will inform you user    tom  whether belong to group  admin   or not

User · Answer

Your User object is linked to the Group object through a ManyToMany relationship   You can thereby apply the filter method to user groups   So  to check if a given User is in a certain group   Member  for the example   just do this    def is member user       return user groups filter name  Member   exists     If you want to check if a given user belongs to more than one given groups  use the   in operator like so    def is in multiple groups user       return user groups filter name  in   group1    group2    exists     Note that those functions can be used with the  user passes test decorator to manage access to your views    from django contrib auth decorators import login required  user passes test  login required  user passes test is member    or  user passes test is in multiple groups  def myview request         Do your processing   Hope this help

User · Answer

I have done it the following way  Seems inefficient but I had no other way in my mind     login required def list track request    usergroup   request user groups values list  name   flat True  first   if usergroup in  appAdmin       tracks   QuestionTrack objects order by  pk       return render request   cmit appadmin list track html     tracks   tracks    else      return HttpResponseRedirect   cmit loggedin

User · Answer

I have similar situation  I wanted to test if the user is in a certain group  So  I ve created new file utils py where I put all my small utilities that help me through entire application  There  I ve have this definition   utils py  def is company admin user       return user groups filter name  company admin   exists     so basically I am testing if the user is in the group company admin and for clarity I ve called this function is company admin    When I want to check if the user is in the company admin I just do this   views py  from  utils import    if is company admin request user           data   Company objects all   filter id request user company id    Now  if you wish to test same in your template  you can add is user admin in your context  something like this   views py  return render request   admin users html     data   data   is company admin   is company admin request user      Now you can evaluate you response in a template   users html     if is company admin             do something        endif       Simple and clean solution  based on answers that can be found earlier in this thread  but done differently  Hope it will help someone   Tested in Django 3 0 4

User · Answer

Just in case if you wanna check user s group belongs to a predefined group list   def is allowed user       allowed group   set   admin    lead    manager        usr   User objects get username user      groups     x name for x in usr groups all        if allowed group intersection set groups           return True     return False

User · Answer

If a user belongs to a certain group or not  can be checked in django templates using      if group in request user groups all      some action     endif

[python] In Django, how do I check if a user is in a certain group?

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