Fixed #23914 -- Improved {% now %} to allow storing its result in the context.

Thanks to Tim for the review.

django/template/defaulttags.py

@@ -419,12 +419,19 @@ class LoadNode(Node):
 
 
 class NowNode(Node):
-    def __init__(self, format_string):
+    def __init__(self, format_string, asvar=None):
         self.format_string = format_string
+        self.asvar = asvar
 
     def render(self, context):
         tzinfo = timezone.get_current_timezone() if settings.USE_TZ else None
-        return date(datetime.now(tz=tzinfo), self.format_string)
+        formatted = date(datetime.now(tz=tzinfo), self.format_string)
+
+        if self.asvar:
+            context[self.asvar] = formatted
+            return ''
+        else:
+            return formatted
 
 
 class SpacelessNode(Node):
@@ -1200,10 +1207,14 @@ def now(parser, token):
         It is {% now "jS F Y H:i" %}
     """
     bits = token.split_contents()
+    asvar = None
+    if len(bits) == 4 and bits[-2] == 'as':
+        asvar = bits[-1]
+        bits = bits[:-2]
     if len(bits) != 2:
         raise TemplateSyntaxError("'now' statement takes one argument")
     format_string = bits[1][1:-1]
-    return NowNode(format_string)
+    return NowNode(format_string, asvar)
 
 
 @register.tag