Fixed #19326 -- Added first() and last() methods to QuerySet

2 files changed, 26 insertions, 0 deletions

diff --git a/django/db/models/manager.py b/django/db/models/manager.py
index 43a8264f11..a1aa79f809 100644
--- a/django/db/models/manager.py
+++ b/django/db/models/manager.py
@@ -186,6 +186,12 @@ class Manager(six.with_metaclass(RenameManagerMethods)):
     def latest(self, *args, **kwargs):
         return self.get_queryset().latest(*args, **kwargs)
 
+    def first(self):
+        return self.get_queryset().first()
+
+    def last(self):
+        return self.get_queryset().last()
+
     def order_by(self, *args, **kwargs):
         return self.get_queryset().order_by(*args, **kwargs)
 
diff --git a/django/db/models/query.py b/django/db/models/query.py
index 4313d044ee..f2015f57a8 100644
--- a/django/db/models/query.py
+++ b/django/db/models/query.py
@@ -498,6 +498,26 @@ class QuerySet(object):
     def latest(self, field_name=None):
         return self._earliest_or_latest(field_name=field_name, direction="-")
 
+    def first(self):
+        """
+        Returns the first object of a query, returns None if no match is found.
+        """
+        qs = self if self.ordered else self.order_by('pk')
+        try:
+            return qs[0]
+        except IndexError:
+            return None
+
+    def last(self):
+        """
+        Returns the last object of a query, returns None if no match is found.
+        """
+        qs = self.reverse() if self.ordered else self.order_by('-pk')
+        try:
+            return qs[0]
+        except IndexError:
+            return None
+
     def in_bulk(self, id_list):
         """
         Returns a dictionary mapping each of the given IDs to the object with