use django filters + search filter; still need adapts sub-page list views

aircox/models/page.py

@@ -53,6 +53,11 @@ class PageQuerySet(InheritanceQuerySet):
         return self.filter(parent=parent) if id is None else \
                self.filter(parent__id=id)
 
+    def search(self, q, search_content=True):
+        if search_content:
+            return self.filter(models.Q(title__icontains=q) | models.Q(content__icontains=q))
+        return self.filter(title__icontains=q)
+
 
 class BasePage(models.Model):
     """ Base class for publishable content """