Fix co-applicant permission for Partners, Reviewers, and Community Reviewers (#4583)

Fixes #4578 

These views are using custom permissions along with submission_view
permission, and those custom permissions are causing issues. Now, we
have checked if a user with the role of Partner, Reviewer, and Community
Reviewer isan applicant or a co-applicant will be redirected to
Applicant view.

Author: sandeepsajan0

hypha/apply/funds/views/submission_detail.py

@@ -115,7 +115,11 @@ def dispatch(self, request, *args, **kwargs):
         submission = self.get_object()
         # If the requesting user submitted the application, return the Applicant view.
         # Reviewers may sometimes be applicants as well.
-        if submission.user == request.user:
+        # or if requesting user is a co-applicant to application, return the Applicant view.
+        if (
+            submission.user == request.user
+            or submission.co_applicants.filter(user=request.user).exists()
+        ):
             return ApplicantSubmissionDetailView.as_view()(request, *args, **kwargs)
         if submission.status == DRAFT_STATE:
             raise Http404
@@ -149,7 +153,11 @@ def dispatch(self, request, *args, **kwargs):
         )
         # If the requesting user submitted the application, return the Applicant view.
         # Partners may sometimes be applicants as well.
-        if submission.user == request.user:
+        # or if requesting user is a co-applicant to application, return the Applicant view.
+        if (
+            submission.user == request.user
+            or submission.co_applicants.filter(user=request.user).exists()
+        ):
             return ApplicantSubmissionDetailView.as_view()(request, *args, **kwargs)
         # Only allow partners in the submission they are added as partners
         partner_has_access = submission.partners.filter(pk=request.user.pk).exists()
@@ -171,7 +179,11 @@ def dispatch(self, request, *args, **kwargs):
         )
         # If the requesting user submitted the application, return the Applicant view.
         # Reviewers may sometimes be applicants as well.
-        if submission.user == request.user:
+        # or if requesting user is a co-applicant to application, return the Applicant view.
+        if (
+            submission.user == request.user
+            or submission.co_applicants.filter(user=request.user).exists()
+        ):
             return ApplicantSubmissionDetailView.as_view()(request, *args, **kwargs)
         # Only allow community reviewers in submission with a community review state.
         if not submission.community_review: