Merge pull request #1564 from alumni/master

Fixes #1535 (HTML widget missing `id` attribute)

rest_framework/fields.py

@@ -154,7 +154,12 @@ class Field(object):
     def widget_html(self):
         if not self.widget:
             return ''
-        return self.widget.render(self._name, self._value)
+
+        attrs = {}
+        if 'id' not in self.widget.attrs:
+            attrs['id'] = self._name
+
+        return self.widget.render(self._name, self._value, attrs=attrs)
 
     def label_tag(self):
         return '<label for="%s">%s:</label>' % (self._name, self.label)

rest_framework/tests/test_fields.py

@@ -4,6 +4,7 @@ General serializer field tests.
 from __future__ import unicode_literals
 
 import datetime
+import re
 from decimal import Decimal
 from uuid import uuid4
 from django.core import validators
@@ -103,6 +104,16 @@ class BasicFieldTests(TestCase):
         keys = list(field.to_native(ret).keys())
         self.assertEqual(keys, ['c', 'b', 'a', 'z'])
 
+    def test_widget_html_attributes(self):
+        """
+        Make sure widget_html() renders the correct attributes
+        """
+        r = re.compile('(\S+)=["\']?((?:.(?!["\']?\s+(?:\S+)=|[>"\']))+.)["\']?')
+        form = TimeFieldModelSerializer().data
+        attributes = r.findall(form.fields['clock'].widget_html())
+        self.assertIn(('name', 'clock'), attributes)
+        self.assertIn(('id', 'clock'), attributes)
+
 
 class DateFieldTest(TestCase):
     """