Merge pull request #503 from carltongibson/develop

0.15.1 Release

.bumpversion.cfg

@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.15.0
+current_version = 0.15.1
 commit = False
 tag = False
 parse = (?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)(\-(?P<release>[a-z]+))?

CHANGES.rst

@@ -1,3 +1,14 @@
+Version 0.15.1 (2016-09-28)
+---------------------------
+
+A couple of quick bug fixes:
+
+* #496 OrderingFilter not working with Select widget
+
+* #498 DRF Backend Templates not loading
+
+
+
 Version 0.15.0 (2016-09-20)
 ---------------------------
 

django_filters/__init__.py

@@ -3,7 +3,7 @@
 from .filterset import FilterSet
 from .filters import *
 
-__version__ = '0.15.0'
+__version__ = '0.15.1'
 
 
 def parse_version(version):

django_filters/fields.py

@@ -11,7 +11,7 @@
 from django.utils.translation import ugettext_lazy as _
 
 from .utils import handle_timezone
-from .widgets import RangeWidget, LookupTypeWidget, CSVWidget
+from .widgets import RangeWidget, LookupTypeWidget, CSVWidget, BaseCSVWidget
 
 
 class RangeField(forms.MultiValueField):
@@ -129,7 +129,28 @@ class IntegerCSVField(BaseCSVField, filters.IntegerField):
             pass
 
     """
-    widget = CSVWidget
+    base_widget_class = BaseCSVWidget
+
+    def __init__(self, *args, **kwargs):
+        widget = kwargs.get('widget') or self.widget
+        kwargs['widget'] = self._get_widget_class(widget)
+
+        super(BaseCSVField, self).__init__(*args, **kwargs)
+
+    def _get_widget_class(self, widget):
+        # passthrough, allows for override
+        if isinstance(widget, BaseCSVWidget) or (
+                isinstance(widget, type) and
+                issubclass(widget, BaseCSVWidget)):
+            return widget
+
+        # complain since we are unable to reconstruct widget instances
+        assert isinstance(widget, type), \
+            "'%s.widget' must be a widget class, not %s." \
+            % (self.__class__.__name__, repr(widget))
+
+        bases = (self.base_widget_class, widget, )
+        return type(str('CSV%s' % widget.__name__), bases, {})
 
     def clean(self, value):
         if value is None:
@@ -138,6 +159,10 @@ def clean(self, value):
 
 
 class BaseRangeField(BaseCSVField):
+    # Force use of text input, as range must always have two inputs. A date
+    # input would only allow a user to input one value and would always fail.
+    widget = CSVWidget
+
     default_error_messages = {
         'invalid_values': _('Range query expects two values.')
     }

django_filters/rest_framework/backends.py

@@ -1,22 +1,45 @@
 
 from __future__ import absolute_import
 
-from django.template import loader
+from django.template import Template, TemplateDoesNotExist, loader
+from rest_framework.compat import template_render
 from rest_framework.filters import BaseFilterBackend
 
 from .. import compat
 from . import filterset
 
 
+CRISPY_TEMPLATE = """
+{% load crispy_forms_tags %}
+{% load i18n %}
+
+<h2>{% trans "Field filters" %}</h2>
+{% crispy filter.form %}
+"""
+
+
+FILTER_TEMPLATE = """
+{% load i18n %}
+<h2>{% trans "Field filters" %}</h2>
+<form class="form" action="" method="get">
+    {{ filter.form.as_p }}
+    <button type="submit" class="btn btn-primary">{% trans "Submit" %}</button>
+</form>
+"""
+
+
 if compat.is_crispy:
-    filter_template = 'django_filters/rest_framework/crispy_form.html'
+    template_path = 'django_filters/rest_framework/crispy_form.html'
+    template_default = Template(CRISPY_TEMPLATE)
+
 else:
-    filter_template = 'django_filters/rest_framework/form.html'
+    template_path = 'django_filters/rest_framework/form.html'
+    template_default = Template(FILTER_TEMPLATE)
 
 
 class DjangoFilterBackend(BaseFilterBackend):
     default_filter_set = filterset.FilterSet
-    template = filter_template
+    template = template_path
 
     def get_filter_class(self, view, queryset=None):
         """
@@ -57,8 +80,12 @@ def to_html(self, request, queryset, view):
         if not filter_class:
             return None
         filter_instance = filter_class(request.query_params, queryset=queryset)
-        context = {
+
+        try:
+            template = loader.get_template(self.template)
+        except TemplateDoesNotExist:
+            template = template_default
+
+        return template_render(template, context={
             'filter': filter_instance
-        }
-        template = loader.get_template(self.template)
-        return compat.template_render(template, context)
+        })

django_filters/widgets.py

@@ -138,12 +138,12 @@ def value_from_datadict(self, data, files, name):
         }.get(value, None)
 
 
-class CSVWidget(forms.TextInput):
+class BaseCSVWidget(forms.Widget):
     def _isiterable(self, value):
         return isinstance(value, Iterable) and not isinstance(value, string_types)
 
     def value_from_datadict(self, data, files, name):
-        value = super(CSVWidget, self).value_from_datadict(data, files, name)
+        value = super(BaseCSVWidget, self).value_from_datadict(data, files, name)
 
         if value is not None:
             if value == '':  # empty value should parse as an empty list
@@ -152,8 +152,22 @@ def value_from_datadict(self, data, files, name):
         return None
 
     def render(self, name, value, attrs=None):
-        if self._isiterable(value):
-            value = [force_text(format_value(self, v)) for v in value]
-            value = ','.join(list(value))
+        if not self._isiterable(value):
+            value = [value]
 
-        return super(CSVWidget, self).render(name, value, attrs)
+        if len(value) <= 1:
+            # delegate to main widget (Select, etc...) if not multiple values
+            value = value[0] if value else value
+            return super(BaseCSVWidget, self).render(name, value, attrs)
+
+        # if we have multiple values, we need to force render as a text input
+        # (otherwise, the additional values are lost)
+        surrogate = forms.TextInput()
+        value = [force_text(format_value(surrogate, v)) for v in value]
+        value = ','.join(list(value))
+
+        return surrogate.render(name, value, attrs)
+
+
+class CSVWidget(BaseCSVWidget, forms.TextInput):
+    pass

docs/conf.py

@@ -48,9 +48,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '0.15.0'
+version = '0.15.1'
 # The full version, including alpha/beta/rc tags.
-release = '0.15.0'
+release = '0.15.1'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.

docs/ref/filters.txt

@@ -674,7 +674,7 @@ two additional arguments that are used to build the ordering choices.
                 ('username', 'account'),
                 ('first_name', 'first_name'),
                 ('last_name', 'last_name'),
-            },
+            ),
 
             # labels do not need to retain order
             field_labels={
@@ -686,7 +686,7 @@ two additional arguments that are used to build the ordering choices.
             model = User
             fields = ['first_name', 'last_name']
 
-    >>> UserFilter().filter['o'].field.choices
+    >>> UserFilter().filters['o'].field.choices
     [
         ('account', 'User account'),
         ('-account', 'User account (descending)'),

setup.py

@@ -6,7 +6,7 @@
 readme = f.read()
 f.close()
 
-version = '0.15.0'
+version = '0.15.1'
 
 if sys.argv[-1] == 'publish':
     if os.system("pip freeze | grep wheel"):

tests/rest_framework/__init__.py

@@ -0,0 +1 @@
+default_app_config = 'tests.rest_framework.apps.RestFrameworkTestConfig'

tests/rest_framework/apps.py

@@ -0,0 +1,8 @@
+
+from django.apps import AppConfig
+
+
+class RestFrameworkTestConfig(AppConfig):
+    name = 'tests.rest_framework'
+    label = 'drf_test_app'
+    verbose_name = "Rest Framework Test App"

tests/rest_framework/templates/filter_template.html

@@ -0,0 +1 @@
+Test

tests/rest_framework/test_backends.py

@@ -280,6 +280,53 @@ def test_unknown_filter(self):
         response = view(request).render()
         self.assertEqual(response.status_code, status.HTTP_200_OK)
 
+    def test_html_rendering(self):
+        """
+        Make sure response renders w/ backend
+        """
+        view = FilterFieldsRootView.as_view()
+        request = factory.get('/')
+        request.META['HTTP_ACCEPT'] = 'text/html'
+        response = view(request).render()
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+
+    def test_backend_output(self):
+        """
+        Ensure backend renders default if template path does not exist
+        """
+        view = FilterFieldsRootView()
+        backend = view.filter_backends[0]
+        request = view.initialize_request(factory.get('/'))
+        html = backend().to_html(request, view.get_queryset(), view)
+
+        self.assertHTMLEqual(html, """
+        <h2>Field filters</h2>
+        <form class="form" action="" method="get">
+            <p>
+                <label for="id_decimal">Decimal:</label>
+                <input id="id_decimal" name="decimal" step="any" type="number" />
+                <span class="helptext">Filter</span>
+            </p>
+            <p>
+                <label for="id_date">Date:</label>
+                <input id="id_date" name="date" type="text" />
+                <span class="helptext">Filter</span>
+            </p>
+            <button type="submit" class="btn btn-primary">Submit</button>
+        </form>
+        """)
+
+    def test_template_path(self):
+        view = FilterFieldsRootView()
+
+        class Backend(view.filter_backends[0]):
+            template = 'filter_template.html'
+
+        request = view.initialize_request(factory.get('/'))
+        html = Backend().to_html(request, view.get_queryset(), view)
+
+        self.assertHTMLEqual(html, "Test")
+
 
 @override_settings(ROOT_URLCONF='tests.rest_framework.test_backends')
 class IntegrationTestDetailFiltering(CommonFilteringTestCase):

tests/settings.py

@@ -7,12 +7,15 @@
 
 INSTALLED_APPS = (
     'django.contrib.contenttypes',
+    'django.contrib.staticfiles',
     'django.contrib.auth',
-    'django_filters',
-    'tests',
+    'rest_framework',
     'tests.rest_framework',
+    'tests',
 )
 
+MIDDLEWARE = []
+
 ROOT_URLCONF = 'tests.urls'
 
 USE_TZ = True
@@ -25,7 +28,7 @@
 }]
 
 
-MIDDLEWARE = []
+STATIC_URL = '/static/'
 
 
 # help verify that DEFAULTS is importable from conf.

tests/test_fields.py

@@ -3,14 +3,12 @@
 
 from datetime import datetime, time, timedelta, tzinfo
 import decimal
-import unittest
 
-import django
 from django import forms
 from django.test import TestCase, override_settings
 from django.utils.timezone import make_aware, get_default_timezone
 
-from django_filters.widgets import RangeWidget
+from django_filters.widgets import BaseCSVWidget, CSVWidget, RangeWidget
 from django_filters.fields import (
     Lookup, LookupTypeField, BaseCSVField, BaseRangeField, RangeField,
     DateRangeField, DateTimeRangeField, TimeRangeField, IsoDateTimeField
@@ -196,6 +194,25 @@ def test_validation_error(self):
         with self.assertRaises(forms.ValidationError):
             self.field.clean(['a', 'b', 'c'])
 
+    def test_derived_widget(self):
+        with self.assertRaises(AssertionError) as excinfo:
+            BaseCSVField(widget=RangeWidget())
+
+        msg = str(excinfo.exception)
+        self.assertIn("'BaseCSVField.widget' must be a widget class", msg)
+        self.assertIn("RangeWidget", msg)
+
+        widget = CSVWidget()
+        field = BaseCSVField(widget=widget)
+        self.assertIs(field.widget, widget)
+
+        field = BaseCSVField(widget=CSVWidget)
+        self.assertIsInstance(field.widget, CSVWidget)
+
+        field = BaseCSVField(widget=forms.Select)
+        self.assertIsInstance(field.widget, forms.Select)
+        self.assertIsInstance(field.widget, BaseCSVWidget)
+
 
 class BaseRangeFieldTests(TestCase):
     def setUp(self):