Route for accepting an application invitation.

- Domain method for enabling an application role.
- Updated ApplicationRole model `history` property so that it serializes
  the `status` correctly

atst/domain/application_roles.py

@@ -1,5 +1,5 @@
 from atst.database import db
-from atst.models.application_role import ApplicationRole
+from atst.models import ApplicationRole, ApplicationRoleStatus
 from atst.domain.permission_sets import PermissionSets
 
 
@@ -21,3 +21,10 @@ class ApplicationRoles(object):
         db.session.commit()
 
         return application_role
+
+    @classmethod
+    def enable(cls, role):
+        role.status = ApplicationRoleStatus.ACTIVE
+
+        db.session.add(role)
+        db.session.commit()

atst/models/application_role.py

@@ -62,7 +62,13 @@ class ApplicationRole(
 
     @property
     def history(self):
-        return self.get_changes()
+        previous_state = self.get_changes()
+        change_set = {}
+        if "status" in previous_state:
+            from_status = previous_state["status"][0].value
+            to_status = self.status.value
+            change_set["status"] = [from_status, to_status]
+        return change_set
 
     def has_permission_set(self, perm_set_name):
         return first_or_none(

atst/routes/applications/__init__.py

@@ -6,6 +6,7 @@ from . import index
 from . import new
 from . import settings
 from . import team
+from . import invitations
 from atst.domain.environment_roles import EnvironmentRoles
 from atst.domain.exceptions import UnauthorizedError
 from atst.domain.authz.decorator import user_can_access_decorator as user_can

atst/routes/applications/invitations.py

@@ -0,0 +1,15 @@
+from flask import redirect, url_for, g
+
+from . import applications_bp
+from atst.domain.invitations import ApplicationInvitations
+
+
+@applications_bp.route("/applications/invitations/<token>", methods=["GET"])
+def accept_invitation(token):
+    invite = ApplicationInvitations.accept(g.current_user, token)
+
+    return redirect(
+        url_for(
+            "portfolios.show_portfolio", portfolio_id=invite.application.portfolio_id
+        )
+    )