Fix UI break

Recent model changes break the UI as now the PackageRelatedVulnerability
contains a ``fix`` flag to mark the relationship as a fix.
This is leveraged to eliminate multiple columns like patched_package or
vulnerable_package.

Known defects (in current PR):
-[x] UI break
-[ ] might crash in multiple imports / improves
-[ ] No improver than default improver is implemented yet
-[ ] normalized function of ``AdvisoryData`` has no body
-[ ] nginx importer still has remains of set_api etc
-[x] Inference -> AdvisoryData encapsulation
-[ ] Duplicated data in database
-[ ] ???

Knows defects (to be solved in different PR):
-[ ] inconsistent naming - will be resolved in a different PR
-[ ] unordered imports

Signed-off-by: Hritik Vijay <hritikxx8@gmail.com>

Author: Hritik14

vulnerabilities/models.py

@@ -89,15 +89,15 @@ def vulnerable_to(self):
         """
         Returns packages which are vulnerable to this vulnerability.
         """
-        return self.vulnerable_packages.all()
+        return self.packages.filter(vulnerabilities__packagerelatedvulnerability__fix=False)
 
     @property
     def resolved_to(self):
         """
         Returns packages, which first received patch against this vulnerability
         in their particular version history.
         """
-        return self.patched_packages.all().distinct()
+        return self.packages.filter(vulnerabilities__packagerelatedvulnerability__fix=True)
 
     def __str__(self):
         return self.vulnerability_id or self.summary
@@ -149,14 +149,14 @@ def vulnerable_to(self):
         """
         Returns vulnerabilities which are affecting this package.
         """
-        return self.vulnerabilities.all()
+        return self.vulnerabilities.filter(packagerelatedvulnerability__fix=False)
 
     @property
     def resolved_to(self):
         """
         Returns the vulnerabilities which this package is patched against.
         """
-        return self.resolved_vulnerabilities.all().distinct()
+        return self.vulnerabilities.filter(packagerelatedvulnerability__fix=True)
 
     class Meta:
         unique_together = ("name", "namespace", "type", "version", "qualifiers", "subpath")

vulnerabilities/views.py

@@ -24,6 +24,7 @@
 
 from django.core.paginator import Paginator
 from django.db.models import Count
+from django.db.models import Q
 from django.http import HttpResponse
 from django.shortcuts import render, redirect
 from django.urls import reverse
@@ -73,8 +74,8 @@ def request_to_queryset(request):
             models.Package.objects.all()
             .filter(name__icontains=package_name, type__icontains=package_type)
             .annotate(
-                vulnerability_count=Count("vulnerabilities"),
-                patched_vulnerability_count=Count("resolved_vulnerabilities"),
+                vulnerability_count=Count("vulnerabilities", filter=Q(vulnerabilities__packagerelatedvulnerability__fix=False)),
+                patched_vulnerability_count=Count("vulnerabilities",filter=Q(vulnerabilities__packagerelatedvulnerability__fix=True)),
             )
             .prefetch_related()
         )
@@ -101,8 +102,8 @@ def request_to_vulnerabilities(request):
         vuln_id = request.GET["vuln_id"]
         return list(
             models.Vulnerability.objects.filter(vulnerability_id__icontains=vuln_id).annotate(
-                vulnerable_package_count=Count("vulnerable_packages"),
-                patched_package_count=Count("patched_packages"),
+                vulnerable_package_count=Count("packages", filter=Q(packagerelatedvulnerability__fix=False)),
+                patched_package_count=Count("packages", filter=Q(packagerelatedvulnerability__fix=True)),
             )
         )