Improve search

	Search now look for keywords in both the title and the content
	of the article. It is now case-insensitive.

apps/rp/views/articles.py

@@ -5,6 +5,7 @@ from django.views.generic.edit import UpdateView
 from django.utils.translation import ugettext_lazy as _
 from django.urls import reverse, reverse_lazy
 from django.db.models import Count
+from django.db.models import Q
 from django import forms
 
 from django.contrib.auth.mixins import LoginRequiredMixin, PermissionRequiredMixin
@@ -34,8 +35,10 @@ class ArticleList(ListView):
         else:
             qs = Article.objects.filter()
 
-        if self.request.GET.get('q', '') != '':
-            qs = qs.filter(title__contains=self.request.GET.get('q', ''))
+        search_keywords = self.request.GET.get('q', '')
+        if search_keywords != '':
+            qs = qs.filter(Q(title__icontains=search_keywords)
+                           | Q(extracts__icontains=search_keywords))
 
         filter_tag = self.kwargs.get("filter_tag", self.filter_tag)
         if filter_tag is not None:
@@ -49,7 +52,6 @@ class ArticleList(ListView):
         qs = Tag.objects.annotate(num_times=Count('taggit_taggeditem_items')).all()
         qs = qs.order_by('-num_times')
         context["tags"] = qs
-        context["search"] = self.request.GET.get("q", '')
 
         return context