From 32acc4a72bf62d9790be832504746054d6ef5ce5 Mon Sep 17 00:00:00 2001
From: Ryan Allen <ryan.allen@us.mackevision.com>
Date: Tue, 21 Apr 2015 10:48:12 -0400
Subject: [PATCH] Set IntegerField class variable for compiled decimal regex,
 comment for purpose

---
 rest_framework/fields.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/rest_framework/fields.py b/rest_framework/fields.py
index ed0270a59..68835bded 100644
--- a/rest_framework/fields.py
+++ b/rest_framework/fields.py
@@ -665,6 +665,7 @@ class IntegerField(Field):
         'max_string_length': _('String value too large.')
     }
     MAX_STRING_LENGTH = 1000  # Guard against malicious string inputs.
+    re_decimal = re.compile(r'\.0*\s*$')  # allow e.g. '1.0' as an int, but not '1.2'
 
     def __init__(self, **kwargs):
         self.max_value = kwargs.pop('max_value', None)
@@ -682,7 +683,7 @@ class IntegerField(Field):
             self.fail('max_string_length')
 
         try:
-            data = int(re.compile(r'\.0*\s*$').sub('', str(data)))
+            data = int(self.re_decimal.sub('', str(data)))
         except (ValueError, TypeError):
             self.fail('invalid')
         return data