[error-report-web,1/5] purge.py: Create script that will purge database

diff --git a/Post/migrations/0006_buildfailure_referer.py b/Post/migrations/0006_buildfailure_referer.py
new file mode 100644
index 0000000..5fad048
--- /dev/null
+++ b/Post/migrations/0006_buildfailure_referer.py
@@ -0,0 +1,19 @@ 
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('Post', '0005_build_error_type'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='buildfailure',
+            name='REFERER',
+            field=models.CharField(default=b'NOT_VISITED', max_length=14, choices=[(b'NO_REFERER', b'no_referer'), (b'OTHER', b'other'), (b'NOT_VISITED', b'not_visited')]),
+        ),
+    ]
diff --git a/Post/models.py b/Post/models.py
index cf8c1c2..3fa66f2 100644
--- a/Post/models.py
+++ b/Post/models.py
@@ -61,6 +61,16 @@  class BuildFailure(models.Model):
     ERROR_DETAILS = models.TextField(max_length=int(settings.MAX_UPLOAD_SIZE))
     BUILD = models.ForeignKey(Build)
     LEV_DISTANCE = models.IntegerField(blank=True, null=True)
+    REFERER_CHOICES = (
+            ('NO_REFERER', 'no_referer'),
+            ('OTHER', 'other'),
+            ('NOT_VISITED', 'not_visited')
+    )
+    REFERER = models.CharField(
+            max_length = 14,
+            choices = REFERER_CHOICES,
+            default = 'NOT_VISITED'
+    )
 
     def get_similar_fails(self):
         if self.LEV_DISTANCE is None:
diff --git a/Post/purge.py b/Post/purge.py
new file mode 100644
index 0000000..829fada
--- /dev/null
+++ b/Post/purge.py
@@ -0,0 +1,29 @@ 
+from datetime import datetime
+from django.utils import timezone
+import os
+import sys
+
+def setup_django():
+    import django
+    # Get access to our Django model
+    newpath = os.path.abspath(os.path.dirname(__file__)) + '/..'
+    sys.path.append(newpath)
+    os.environ['DJANGO_SETTINGS_MODULE'] = 'project.settings'
+    django.setup()
+
+def main():
+    setup_django()
+    from Post.models import BuildFailure
+    items = BuildFailure.objects.all()
+    now = timezone.now()
+    for item in items:
+        if item.REFERER == 'OTHER' or item.REFERER == 'NO_REFERER':
+            continue
+        difference = now - item.BUILD.DATE
+        if difference.days > 30:
+            item.delete()
+
+if __name__ == "__main__":
+    main()
+
+
diff --git a/Post/views.py b/Post/views.py
index fe7100e..5737076 100644
--- a/Post/views.py
+++ b/Post/views.py
@@ -24,6 +24,7 @@  from django.http import JsonResponse
 from django.db.models import Q
 import json
 import urllib
+from urlparse import urlparse
 
 class results_mode(object):
     LATEST = 0
@@ -258,9 +259,20 @@  def search(request, mode=results_mode.LATEST, **kwargs):
 
 def details(request, fail_id):
     try:
-      build_failure = BuildFailure.objects.get(id=fail_id)
+        build_failure = BuildFailure.objects.get(id=fail_id)
     except ObjectDoesNotExist:
-      build_failure = None
+        build_failure = None
+    try:
+        referer = urlparse(request.META['HTTP_REFERER'])
+        referer_hostname = referer.hostname
+        if referer.port:
+            referer_hostname += ":" + str(referer.port)
+        if referer_hostname != request.get_host():
+            build_failure.REFERER = 'OTHER'
+    except KeyError:
+        # There is no referer
+        build_failure.REFERER = 'NO_REFERER'
+    build_failure.save()
 
     context = {'detail' : build_failure, 'error_types' : ErrorType }