Merge branch 'master' of git://github.com/tomchristie/django-rest-framework into issue-192-expose-fields-for-options

14 files changed, 608 insertions, 178 deletions

diff --git a/docs/api-guide/relations.md b/docs/api-guide/relations.md
index 155c89de..99fe1083 100644
--- a/docs/api-guide/relations.md
+++ b/docs/api-guide/relations.md
@@ -381,6 +381,15 @@ Note that reverse generic keys, expressed using the `GenericRelation` field, can
 
 For more information see [the Django documentation on generic relations][generic-relations].
 
+## ManyToManyFields with a Through Model
+
+By default, relational fields that target a ``ManyToManyField`` with a
+``through`` model specified are set to read-only.
+
+If you exlicitly specify a relational field pointing to a
+``ManyToManyField`` with a through model, be sure to set ``read_only``
+to ``True``.
+
 ## Advanced Hyperlinked fields
 
 If you have very specific requirements for the style of your hyperlinked relationships you can override `HyperlinkedRelatedField`. 
diff --git a/docs/api-guide/renderers.md b/docs/api-guide/renderers.md
index ed733c65..b9a9fd7a 100644
--- a/docs/api-guide/renderers.md
+++ b/docs/api-guide/renderers.md
@@ -274,6 +274,8 @@ Exceptions raised and handled by an HTML renderer will attempt to render using o
 
 Templates will render with a `RequestContext` which includes the `status_code` and `details` keys.
 
+**Note**: If `DEBUG=True`, Django's standard traceback error page will be displayed instead of rendering the HTTP status code and text.
+
 ---
 
 # Third party packages
diff --git a/docs/topics/browsable-api.md b/docs/topics/browsable-api.md
index 8ee01824..65f76abc 100644
--- a/docs/topics/browsable-api.md
+++ b/docs/topics/browsable-api.md
@@ -35,6 +35,17 @@ A suitable replacement theme can be generated using Bootstrap's [Customize Tool]
 
 You can also change the navbar variant, which by default is `navbar-inverse`, using the `bootstrap_navbar_variant` block. The empty `{% block bootstrap_navbar_variant %}{% endblock %}` will use the original Bootstrap navbar style.
 
+Full Example
+
+    {% extends "rest_framework/base.html" %}
+
+    {% block bootstrap_theme %}
+        <link rel="stylesheet" href="/path/to/yourtheme/bootstrap.min.css' type="text/css">
+    {% endblock %}
+
+    {% block bootstrap_navbar_variant %}{% endblock %}
+
+
 For more specific CSS tweaks, use the `style` block instead.
 
 
diff --git a/docs/topics/credits.md b/docs/topics/credits.md
index 5998b4ca..d805c0c1 100644
--- a/docs/topics/credits.md
+++ b/docs/topics/credits.md
@@ -127,6 +127,9 @@ The following people have helped make REST framework great.
 * Craig de Stigter - [craigds]
 * Pablo Recio - [pyriku]
 * Brian Zambrano - [brianz]
+* Òscar Vilaplana - [grimborg]
+* Ryan Kaskel - [ryankask]
+* Andy McKay - [andymckay]
 
 Many thanks to everyone who's contributed to the project.
 
@@ -290,3 +293,6 @@ You can also contact [@_tomchristie][twitter] directly on twitter.
 [craigds]: https://github.com/craigds
 [pyriku]: https://github.com/pyriku
 [brianz]: https://github.com/brianz
+[grimborg]: https://github.com/grimborg
+[ryankask]: https://github.com/ryankask
+[andymckay]: https://github.com/andymckay
diff --git a/rest_framework/fields.py b/rest_framework/fields.py
index 491aa7ed..fc14184c 100644
--- a/rest_framework/fields.py
+++ b/rest_framework/fields.py
@@ -383,7 +383,6 @@ class URLField(CharField):
     type_name = 'URLField'
 
     def __init__(self, **kwargs):
-        kwargs['max_length'] = kwargs.get('max_length', 200)
         kwargs['validators'] = [validators.URLValidator()]
         super(URLField, self).__init__(**kwargs)
 
@@ -392,7 +391,6 @@ class SlugField(CharField):
     type_name = 'SlugField'
 
     def __init__(self, *args, **kwargs):
-        kwargs['max_length'] = kwargs.get('max_length', 50)
         super(SlugField, self).__init__(*args, **kwargs)
 
 
diff --git a/rest_framework/relations.py b/rest_framework/relations.py
index 884b954c..c4271e33 100644
--- a/rest_framework/relations.py
+++ b/rest_framework/relations.py
@@ -8,6 +8,7 @@ from __future__ import unicode_literals
 from django.core.exceptions import ObjectDoesNotExist, ValidationError
 from django.core.urlresolvers import resolve, get_script_prefix, NoReverseMatch
 from django import forms
+from django.db.models.fields import BLANK_CHOICE_DASH
 from django.forms import widgets
 from django.forms.models import ModelChoiceIterator
 from django.utils.translation import ugettext_lazy as _
@@ -47,7 +48,7 @@ class RelatedField(WritableField):
                           DeprecationWarning, stacklevel=2)
             kwargs['required'] = not kwargs.pop('null')
 
-        self.queryset = kwargs.pop('queryset', None)
+        queryset = kwargs.pop('queryset', None)
         self.many = kwargs.pop('many', self.many)
         if self.many:
             self.widget = self.many_widget
@@ -56,6 +57,11 @@ class RelatedField(WritableField):
         kwargs['read_only'] = kwargs.pop('read_only', self.read_only)
         super(RelatedField, self).__init__(*args, **kwargs)
 
+        if not self.required:
+            self.empty_label = BLANK_CHOICE_DASH[0][1]
+
+        self.queryset = queryset
+
     def initialize(self, parent, field_name):
         super(RelatedField, self).initialize(parent, field_name)
         if self.queryset is None and not self.read_only:
@@ -442,7 +448,7 @@ class HyperlinkedRelatedField(RelatedField):
             raise Exception('Writable related fields must include a `queryset` argument')
 
         try:
-            http_prefix = value.startswith('http:') or value.startswith('https:')
+            http_prefix = value.startswith(('http:', 'https:'))
         except AttributeError:
             msg = self.error_messages['incorrect_type']
             raise ValidationError(msg % type(value).__name__)
diff --git a/rest_framework/serializers.py b/rest_framework/serializers.py
index 500bb306..ff5eb873 100644
--- a/rest_framework/serializers.py
+++ b/rest_framework/serializers.py
@@ -378,23 +378,27 @@ class BaseSerializer(WritableField):
         # Set the serializer object if it exists
         obj = getattr(self.parent.object, field_name) if self.parent.object else None
 
-        if value in (None, ''):
-            into[(self.source or field_name)] = None
+        if self.source == '*':
+            if value:
+                into.update(value)
         else:
-            kwargs = {
-                'instance': obj,
-                'data': value,
-                'context': self.context,
-                'partial': self.partial,
-                'many': self.many
-            }
-            serializer = self.__class__(**kwargs)
-
-            if serializer.is_valid():
-                into[self.source or field_name] = serializer.object
+            if value in (None, ''):
+                into[(self.source or field_name)] = None
             else:
-                # Propagate errors up to our parent
-                raise NestedValidationError(serializer.errors)
+                kwargs = {
+                    'instance': obj,
+                    'data': value,
+                    'context': self.context,
+                    'partial': self.partial,
+                    'many': self.many
+                }
+                serializer = self.__class__(**kwargs)
+
+                if serializer.is_valid():
+                    into[self.source or field_name] = serializer.object
+                else:
+                    # Propagate errors up to our parent
+                    raise NestedValidationError(serializer.errors)
 
     def get_identity(self, data):
         """
@@ -587,11 +591,16 @@ class ModelSerializer(Serializer):
         forward_rels += [field for field in opts.many_to_many if field.serialize]
 
         for model_field in forward_rels:
+            has_through_model = False
+
             if model_field.rel:
                 to_many = isinstance(model_field,
                                      models.fields.related.ManyToManyField)
                 related_model = model_field.rel.to
 
+                if to_many and not model_field.rel.through._meta.auto_created:
+                    has_through_model = True
+
             if model_field.rel and nested:
                 if len(inspect.getargspec(self.get_nested_field).args) == 2:
                     warnings.warn(
@@ -620,6 +629,9 @@ class ModelSerializer(Serializer):
                 field = self.get_field(model_field)
 
             if field:
+                if has_through_model:
+                    field.read_only = True
+
                 ret[model_field.name] = field
 
         # Deal with reverse relationships
@@ -637,6 +649,12 @@ class ModelSerializer(Serializer):
                 continue
             related_model = relation.model
             to_many = relation.field.rel.multiple
+            has_through_model = False
+            is_m2m = isinstance(relation.field,
+                                models.fields.related.ManyToManyField)
+
+            if is_m2m and not relation.field.rel.through._meta.auto_created:
+                has_through_model = True
 
             if nested:
                 field = self.get_nested_field(None, related_model, to_many)
@@ -644,6 +662,9 @@ class ModelSerializer(Serializer):
                 field = self.get_related_field(None, related_model, to_many)
 
             if field:
+                if has_through_model:
+                    field.read_only = True
+
                 ret[accessor_name] = field
 
         # Add the `read_only` flag to any fields that have bee specified
@@ -723,6 +744,22 @@ class ModelSerializer(Serializer):
             kwargs['choices'] = model_field.flatchoices
             return ChoiceField(**kwargs)
 
+        attribute_dict = {
+            models.CharField: ['max_length'],
+            models.CommaSeparatedIntegerField: ['max_length'],
+            models.DecimalField: ['max_digits', 'decimal_places'],
+            models.EmailField: ['max_length'],
+            models.FileField: ['max_length'],
+            models.ImageField: ['max_length'],
+            models.SlugField: ['max_length'],
+            models.URLField: ['max_length'],
+        }
+
+        if model_field.__class__ in attribute_dict:
+            attributes = attribute_dict[model_field.__class__]
+            for attribute in attributes:
+                kwargs.update({attribute: getattr(model_field, attribute)})
+
         try:
             return self.field_mapping[model_field.__class__](**kwargs)
         except KeyError:
diff --git a/rest_framework/static/rest_framework/css/bootstrap-tweaks.css b/rest_framework/static/rest_framework/css/bootstrap-tweaks.css
index c650ef2e..9b520156 100644
--- a/rest_framework/static/rest_framework/css/bootstrap-tweaks.css
+++ b/rest_framework/static/rest_framework/css/bootstrap-tweaks.css
@@ -19,4 +19,163 @@ a single block in the template.
 .navbar-inverse .brand:hover a {
     color: white;
     text-decoration: none;
-}
\ No newline at end of file
+}
+
+/* custom navigation styles */
+.wrapper .navbar{
+  width: 100%;
+  position: absolute;
+  left: 0;
+  top: 0;
+}
+
+.navbar .navbar-inner{
+  background: #2C2C2C;
+  color: white;
+  border: none;
+  border-top: 5px solid #A30000;
+  border-radius: 0px;
+}
+
+.navbar .navbar-inner .nav li, .navbar .navbar-inner .nav li a, .navbar .navbar-inner .brand:hover{
+  color: white;
+}
+
+.nav-list > .active > a, .nav-list > .active > a:hover {
+  background: #2c2c2c;
+}
+
+.navbar .navbar-inner .dropdown-menu li a, .navbar .navbar-inner .dropdown-menu li{
+ color: #A30000;
+}
+.navbar .navbar-inner .dropdown-menu li a:hover{
+  background: #eeeeee;
+  color: #c20000;
+}
+
+/*=== dabapps bootstrap styles ====*/
+
+html{
+  width:100%;
+  background: none;
+}
+
+body, .navbar .navbar-inner .container-fluid {
+  max-width: 1150px;
+  margin: 0 auto;
+}
+
+body{
+  background: url("../img/grid.png") repeat-x;
+  background-attachment: fixed;
+}
+
+#content{
+    margin: 0;
+}
+
+/* sticky footer and footer */
+html, body {
+  height: 100%;
+}
+.wrapper {
+  min-height: 100%;
+  height: auto !important;
+  height: 100%;
+  margin: 0 auto -60px;
+}
+
+.form-switcher {
+    margin-bottom: 0;
+}
+
+.well {
+    -webkit-box-shadow: none;
+       -moz-box-shadow: none;
+            box-shadow: none;
+}
+
+.well .form-actions {
+    padding-bottom: 0;
+    margin-bottom: 0;
+}
+
+.well form {
+    margin-bottom: 0;
+}
+
+.nav-tabs {
+    border: 0;
+}
+
+.nav-tabs > li {
+    float: right;
+}
+
+.nav-tabs li a {
+    margin-right: 0;
+}
+
+.nav-tabs > .active > a {
+    background: #f5f5f5;
+}
+
+.nav-tabs > .active > a:hover {
+    background: #f5f5f5;
+}
+
+.tabbable.first-tab-active .tab-content
+{
+    border-top-right-radius: 0;
+}
+
+#footer, #push {
+  height: 60px; /* .push must be the same height as .footer */
+}
+
+#footer{
+    text-align: right;
+}
+
+#footer p {
+  text-align: center;
+  color: gray;
+  border-top: 1px solid #DDD;
+  padding-top: 10px;
+}
+
+#footer a {
+  color: gray;
+  font-weight: bold;
+}
+
+#footer a:hover {
+  color: gray;
+}
+
+.page-header {
+    border-bottom: none;
+    padding-bottom: 0px;
+    margin-bottom: 20px;
+}
+
+/* custom general page styles */
+.hero-unit h2, .hero-unit h1{
+  color: #A30000;
+}
+
+body a, body a{
+  color: #A30000;
+}
+
+body a:hover{
+  color: #c20000;
+}
+
+#content a span{
+    text-decoration: underline;
+ }
+
+.request-info {
+    clear:both;
+}
diff --git a/rest_framework/static/rest_framework/css/default.css b/rest_framework/static/rest_framework/css/default.css
index d806267b..0261a303 100644
--- a/rest_framework/static/rest_framework/css/default.css
+++ b/rest_framework/static/rest_framework/css/default.css
@@ -69,152 +69,3 @@ pre {
     margin-bottom: 20px;
 }
 
-
-/*=== dabapps bootstrap styles ====*/
-
-html{
-  width:100%;
-  background: none;
-}
-
-body, .navbar .navbar-inner .container-fluid {
-  max-width: 1150px;
-  margin: 0 auto;
-}
-
-body{
-  background: url("../img/grid.png") repeat-x;
-  background-attachment: fixed;
-}
-
-#content{
-    margin: 0;
-}
-/* custom navigation styles */
-.wrapper .navbar{
-  width: 100%;
-  position: absolute;
-  left: 0;
-  top: 0;
-}
-
-.navbar .navbar-inner{
-  background: #2C2C2C;
-  color: white;
-  border: none;
-  border-top: 5px solid #A30000;
-  border-radius: 0px;
-}
-
-.navbar .navbar-inner .nav li, .navbar .navbar-inner .nav li a, .navbar .navbar-inner .brand{
-  color: white; 
-}
-
-.nav-list > .active > a, .nav-list > .active > a:hover {
-  background: #2c2c2c;
-}
-
-.navbar .navbar-inner .dropdown-menu li a, .navbar .navbar-inner .dropdown-menu li{
- color: #A30000; 
-}
-.navbar .navbar-inner .dropdown-menu li a:hover{
-  background: #eeeeee;
-  color: #c20000;
-}
-
-/* custom general page styles */
-.hero-unit h2, .hero-unit h1{
-  color: #A30000;
-}
-
-body a, body a{
-  color: #A30000;
-}
-
-body a:hover{
-  color: #c20000;
-}
-
-#content a span{
-    text-decoration: underline;
- }
-
-/* sticky footer and footer */
-html, body {
-  height: 100%;
-}
-.wrapper {
-  min-height: 100%;
-  height: auto !important;
-  height: 100%;
-  margin: 0 auto -60px;
-}
-
-.form-switcher {
-    margin-bottom: 0;
-}
-
-.well {
-    -webkit-box-shadow: none;
-       -moz-box-shadow: none;
-            box-shadow: none;
-}
-
-.well .form-actions {
-    padding-bottom: 0;
-    margin-bottom: 0;
-}
-
-.well form {
-    margin-bottom: 0;
-}
-
-.nav-tabs {
-    border: 0;
-}
-
-.nav-tabs > li {
-    float: right;
-}
-
-.nav-tabs li a {
-    margin-right: 0;
-}
-
-.nav-tabs > .active > a {
-    background: #f5f5f5;
-}
-
-.nav-tabs > .active > a:hover {
-    background: #f5f5f5;
-}
-
-.tabbable.first-tab-active .tab-content
-{
-    border-top-right-radius: 0;
-}
-
-#footer, #push {
-  height: 60px; /* .push must be the same height as .footer */
-}
-
-#footer{
-    text-align: right;
-}
-
-#footer p {
-  text-align: center;
-  color: gray;
-  border-top: 1px solid #DDD;
-  padding-top: 10px;
-}
-
-#footer a {
-  color: gray;
-  font-weight: bold;
-}
-
-#footer a:hover {
-  color: gray;
-}
-
diff --git a/rest_framework/templates/rest_framework/base.html b/rest_framework/templates/rest_framework/base.html
index 4410f285..9d939e73 100644
--- a/rest_framework/templates/rest_framework/base.html
+++ b/rest_framework/templates/rest_framework/base.html
@@ -13,8 +13,10 @@
         <title>{% block title %}Django REST framework{% endblock %}</title>
 
         {% block style %}
-        {% block bootstrap_theme %}<link rel="stylesheet" type="text/css" href="{% static "rest_framework/css/bootstrap.min.css" %}"/>{% endblock %}
-        <link rel="stylesheet" type="text/css" href="{% static "rest_framework/css/bootstrap-tweaks.css" %}"/>
+        {% block bootstrap_theme %}
+            <link rel="stylesheet" type="text/css" href="{% static "rest_framework/css/bootstrap.min.css" %}"/>
+            <link rel="stylesheet" type="text/css" href="{% static "rest_framework/css/bootstrap-tweaks.css" %}"/>
+        {% endblock %}
         <link rel="stylesheet" type="text/css" href="{% static "rest_framework/css/prettify.css" %}"/>
         <link rel="stylesheet" type="text/css" href="{% static "rest_framework/css/default.css" %}"/>
         {% endblock %}
@@ -30,8 +32,8 @@
     <div class="navbar {% block bootstrap_navbar_variant %}navbar-inverse{% endblock %}">
         <div class="navbar-inner">
             <div class="container-fluid">
-                <span class="brand" href="/">
-                    {% block branding %}<a href='http://django-rest-framework.org'>Django REST framework <span class="version">{{ version }}</span></a>{% endblock %}
+                <span href="/">
+                    {% block branding %}<a class='brand' href='http://django-rest-framework.org'>Django REST framework <span class="version">{{ version }}</span></a>{% endblock %}
                 </span>
                 <ul class="nav pull-right">
                     {% block userlinks %}
@@ -109,8 +111,7 @@
         <div class="content-main">
             <div class="page-header"><h1>{{ name }}</h1></div>
             {{ description }}
-
-            <div class="request-info">
+            <div class="request-info" style="clear: both" >
                 <pre class="prettyprint"><b>{{ request.method }}</b> {{ request.get_full_path }}</pre>
             </div>
             <div class="response-info">
diff --git a/rest_framework/templates/rest_framework/login_base.html b/rest_framework/templates/rest_framework/login_base.html
index a3e73b6b..be9a0072 100644
--- a/rest_framework/templates/rest_framework/login_base.html
+++ b/rest_framework/templates/rest_framework/login_base.html
@@ -4,8 +4,10 @@
 
     <head>
         {% block style %}
-        {% block bootstrap_theme %}<link rel="stylesheet" type="text/css" href="{% static "rest_framework/css/bootstrap.min.css" %}"/>{% endblock %}
-        <link rel="stylesheet" type="text/css" href="{% static "rest_framework/css/bootstrap-tweaks.css" %}"/>
+        {% block bootstrap_theme %}
+            <link rel="stylesheet" type="text/css" href="{% static "rest_framework/css/bootstrap.min.css" %}"/>
+            <link rel="stylesheet" type="text/css" href="{% static "rest_framework/css/bootstrap-tweaks.css" %}"/>
+        {% endblock %}
         <link rel="stylesheet" type="text/css" href="{% static "rest_framework/css/default.css" %}"/>
         {% endblock %}
     </head>
diff --git a/rest_framework/tests/fields.py b/rest_framework/tests/fields.py
index 6b1cdfc7..dad69975 100644
--- a/rest_framework/tests/fields.py
+++ b/rest_framework/tests/fields.py
@@ -10,6 +10,7 @@ from django.test import TestCase
 from django.core import validators
 from rest_framework import serializers
 from rest_framework.serializers import Serializer
+from rest_framework.tests.models import RESTFrameworkModel
 
 
 class TimestampedModel(models.Model):
@@ -685,3 +686,126 @@ class ChoiceFieldTests(TestCase):
         """
         f = serializers.ChoiceField(required=False, choices=self.SAMPLE_CHOICES)
         self.assertEqual(f.choices, models.fields.BLANK_CHOICE_DASH + self.SAMPLE_CHOICES)
+
+
+class EmailFieldTests(TestCase):
+    """
+    Tests for EmailField attribute values
+    """
+
+    class EmailFieldModel(RESTFrameworkModel):
+        email_field = models.EmailField(blank=True)
+
+    class EmailFieldWithGivenMaxLengthModel(RESTFrameworkModel):
+        email_field = models.EmailField(max_length=150, blank=True)
+
+    def test_default_model_value(self):
+        class EmailFieldSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = self.EmailFieldModel
+
+        serializer = EmailFieldSerializer(data={})
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(getattr(serializer.fields['email_field'], 'max_length'), 75)
+
+    def test_given_model_value(self):
+        class EmailFieldSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = self.EmailFieldWithGivenMaxLengthModel
+
+        serializer = EmailFieldSerializer(data={})
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(getattr(serializer.fields['email_field'], 'max_length'), 150)
+
+    def test_given_serializer_value(self):
+        class EmailFieldSerializer(serializers.ModelSerializer):
+            email_field = serializers.EmailField(source='email_field', max_length=20, required=False)
+
+            class Meta:
+                model = self.EmailFieldModel
+
+        serializer = EmailFieldSerializer(data={})
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(getattr(serializer.fields['email_field'], 'max_length'), 20)
+
+
+class SlugFieldTests(TestCase):
+    """
+    Tests for SlugField attribute values
+    """
+
+    class SlugFieldModel(RESTFrameworkModel):
+        slug_field = models.SlugField(blank=True)
+
+    class SlugFieldWithGivenMaxLengthModel(RESTFrameworkModel):
+        slug_field = models.SlugField(max_length=84, blank=True)
+
+    def test_default_model_value(self):
+        class SlugFieldSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = self.SlugFieldModel
+
+        serializer = SlugFieldSerializer(data={})
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(getattr(serializer.fields['slug_field'], 'max_length'), 50)
+
+    def test_given_model_value(self):
+        class SlugFieldSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = self.SlugFieldWithGivenMaxLengthModel
+
+        serializer = SlugFieldSerializer(data={})
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(getattr(serializer.fields['slug_field'], 'max_length'), 84)
+
+    def test_given_serializer_value(self):
+        class SlugFieldSerializer(serializers.ModelSerializer):
+            slug_field = serializers.SlugField(source='slug_field', max_length=20, required=False)
+
+            class Meta:
+                model = self.SlugFieldModel
+
+        serializer = SlugFieldSerializer(data={})
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(getattr(serializer.fields['slug_field'], 'max_length'), 20)
+
+
+class URLFieldTests(TestCase):
+    """
+    Tests for URLField attribute values
+    """
+
+    class URLFieldModel(RESTFrameworkModel):
+        url_field = models.URLField(blank=True)
+
+    class URLFieldWithGivenMaxLengthModel(RESTFrameworkModel):
+        url_field = models.URLField(max_length=128, blank=True)
+
+    def test_default_model_value(self):
+        class URLFieldSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = self.URLFieldModel
+
+        serializer = URLFieldSerializer(data={})
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(getattr(serializer.fields['url_field'], 'max_length'), 200)
+
+    def test_given_model_value(self):
+        class URLFieldSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = self.URLFieldWithGivenMaxLengthModel
+
+        serializer = URLFieldSerializer(data={})
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(getattr(serializer.fields['url_field'], 'max_length'), 128)
+
+    def test_given_serializer_value(self):
+        class URLFieldSerializer(serializers.ModelSerializer):
+            url_field = serializers.URLField(source='url_field', max_length=20, required=False)
+
+            class Meta:
+                model = self.URLFieldWithGivenMaxLengthModel
+
+        serializer = URLFieldSerializer(data={})
+        self.assertEqual(serializer.is_valid(), True)
+        self.assertEqual(getattr(serializer.fields['url_field'], 'max_length'), 20)
diff --git a/rest_framework/tests/relations_pk.py b/rest_framework/tests/relations_pk.py
index 0f8c5247..e2a1b815 100644
--- a/rest_framework/tests/relations_pk.py
+++ b/rest_framework/tests/relations_pk.py
@@ -1,4 +1,5 @@
 from __future__ import unicode_literals
+from django.db import models
 from django.test import TestCase
 from rest_framework import serializers
 from rest_framework.tests.models import (
@@ -127,6 +128,7 @@ class PKManyToManyTests(TestCase):
         # Ensure source 4 is added, and everything else is as expected
         queryset = ManyToManySource.objects.all()
         serializer = ManyToManySourceSerializer(queryset, many=True)
+        self.assertFalse(serializer.fields['targets'].read_only)
         expected = [
             {'id': 1, 'name': 'source-1', 'targets': [1]},
             {'id': 2, 'name': 'source-2', 'targets': [1, 2]},
@@ -138,6 +140,7 @@ class PKManyToManyTests(TestCase):
     def test_reverse_many_to_many_create(self):
         data = {'id': 4, 'name': 'target-4', 'sources': [1, 3]}
         serializer = ManyToManyTargetSerializer(data=data)
+        self.assertFalse(serializer.fields['sources'].read_only)
         self.assertTrue(serializer.is_valid())
         obj = serializer.save()
         self.assertEqual(serializer.data, data)
@@ -426,8 +429,69 @@ class PKNullableOneToOneTests(TestCase):
         self.assertEqual(serializer.data, expected)
 
 
+# The below models and tests ensure that serializer fields corresponding
+# to a ManyToManyField field with a user-specified ``through`` model are
+# set to read only
+
+
+class ManyToManyThroughTarget(models.Model):
+    name = models.CharField(max_length=100)
+
+
+class ManyToManyThrough(models.Model):
+    source = models.ForeignKey('ManyToManyThroughSource')
+    target = models.ForeignKey(ManyToManyThroughTarget)
+
+
+class ManyToManyThroughSource(models.Model):
+    name = models.CharField(max_length=100)
+    targets = models.ManyToManyField(ManyToManyThroughTarget,
+                                     related_name='sources',
+                                     through='ManyToManyThrough')
+
+
+class ManyToManyThroughTargetSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = ManyToManyThroughTarget
+        fields = ('id', 'name', 'sources')
+
+
+class ManyToManyThroughSourceSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = ManyToManyThroughSource
+        fields = ('id', 'name', 'targets')
+
+
+class PKManyToManyThroughTests(TestCase):
+    def setUp(self):
+        self.source = ManyToManyThroughSource.objects.create(
+            name='through-source-1')
+        self.target = ManyToManyThroughTarget.objects.create(
+            name='through-target-1')
+
+    def test_many_to_many_create(self):
+        data = {'id': 2, 'name': 'source-2', 'targets': [self.target.pk]}
+        serializer = ManyToManyThroughSourceSerializer(data=data)
+        self.assertTrue(serializer.fields['targets'].read_only)
+        self.assertTrue(serializer.is_valid())
+        obj = serializer.save()
+        self.assertEqual(obj.name, 'source-2')
+        self.assertEqual(obj.targets.count(), 0)
+
+    def test_many_to_many_reverse_create(self):
+        data = {'id': 2, 'name': 'target-2', 'sources': [self.source.pk]}
+        serializer = ManyToManyThroughTargetSerializer(data=data)
+        self.assertTrue(serializer.fields['sources'].read_only)
+        self.assertTrue(serializer.is_valid())
+        serializer.save()
+        obj = serializer.save()
+        self.assertEqual(obj.name, 'target-2')
+        self.assertEqual(obj.sources.count(), 0)
+
+
 # Regression tests for #694 (`source` attribute on related fields)
 
+
 class PrimaryKeyRelatedFieldSourceTests(TestCase):
     def test_related_manager_source(self):
         """
diff --git a/rest_framework/tests/serializer.py b/rest_framework/tests/serializer.py
index d0a8570c..4f188c3e 100644
--- a/rest_framework/tests/serializer.py
+++ b/rest_framework/tests/serializer.py
@@ -6,7 +6,7 @@ from django.test import TestCase
 from rest_framework import serializers
 from rest_framework.tests.models import (HasPositiveIntegerAsChoice, Album, ActionItem, Anchor, BasicModel,
     BlankFieldModel, BlogPost, BlogPostComment, Book, CallableDefaultValueModel, DefaultValueModel,
-    ManyToManyModel, Person, ReadOnlyManyToManyModel, Photo)
+    ManyToManyModel, Person, ReadOnlyManyToManyModel, Photo, RESTFrameworkModel)
 import datetime
 import pickle
 
@@ -91,6 +91,17 @@ class PersonSerializer(serializers.ModelSerializer):
         read_only_fields = ('age',)
 
 
+class NestedSerializer(serializers.Serializer):
+    info = serializers.Field()
+
+
+class ModelSerializerWithNestedSerializer(serializers.ModelSerializer):
+    nested = NestedSerializer(source='*')
+
+    class Meta:
+        model = Person
+
+
 class PersonSerializerInvalidReadOnly(serializers.ModelSerializer):
     """
     Testing for #652.
@@ -418,6 +429,17 @@ class ValidationTests(TestCase):
         except:
             self.fail('Wrong exception type thrown.')
 
+    def test_writable_star_source_on_nested_serializer(self):
+        """
+        Assert that a nested serializer instantiated with source='*' correctly
+        expands the data into the outer serializer.
+        """
+        serializer = ModelSerializerWithNestedSerializer(data={
+            'name': 'marko',
+            'nested': {'info': 'hi'}},
+        )
+        self.assertEqual(serializer.is_valid(), True)
+
 
 class CustomValidationTests(TestCase):
     class CommentSerializerWithFieldValidator(CommentSerializer):
@@ -1117,6 +1139,63 @@ class SerializerChoiceFields(TestCase):
         )
 
 
+# Regression tests for #675
+class Ticket(models.Model):
+    assigned = models.ForeignKey(
+        Person, related_name='assigned_tickets')
+    reviewer = models.ForeignKey(
+        Person, blank=True, null=True, related_name='reviewed_tickets')
+
+
+class SerializerRelatedChoicesTest(TestCase):
+
+    def setUp(self):
+        super(SerializerRelatedChoicesTest, self).setUp()
+
+        class RelatedChoicesSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = Ticket
+                fields = ('assigned', 'reviewer')
+
+        self.related_fields_serializer = RelatedChoicesSerializer
+
+    def test_empty_queryset_required(self):
+        serializer = self.related_fields_serializer()
+        self.assertEqual(serializer.fields['assigned'].queryset.count(), 0)
+        self.assertEqual(
+            [x for x in serializer.fields['assigned'].widget.choices],
+            []
+        )
+
+    def test_empty_queryset_not_required(self):
+        serializer = self.related_fields_serializer()
+        self.assertEqual(serializer.fields['reviewer'].queryset.count(), 0)
+        self.assertEqual(
+            [x for x in serializer.fields['reviewer'].widget.choices],
+            [('', '---------')]
+        )
+
+    def test_with_some_persons_required(self):
+        Person.objects.create(name="Lionel Messi")
+        Person.objects.create(name="Xavi Hernandez")
+        serializer = self.related_fields_serializer()
+        self.assertEqual(serializer.fields['assigned'].queryset.count(), 2)
+        self.assertEqual(
+            [x for x in serializer.fields['assigned'].widget.choices],
+            [(1, 'Person object - 1'), (2, 'Person object - 2')]
+        )
+
+    def test_with_some_persons_not_required(self):
+        Person.objects.create(name="Lionel Messi")
+        Person.objects.create(name="Xavi Hernandez")
+        serializer = self.related_fields_serializer()
+        self.assertEqual(serializer.fields['reviewer'].queryset.count(), 2)
+        self.assertEqual(
+            [x for x in serializer.fields['reviewer'].widget.choices],
+            [('', '---------'), (1, 'Person object - 1'), (2, 'Person object - 2')]
+        )
+
+
 class DepthTest(TestCase):
     def test_implicit_nesting(self):
 
@@ -1242,3 +1321,84 @@ class DeserializeListTestCase(TestCase):
         self.assertFalse(serializer.is_valid())
         expected = [{}, {'email': ['This field is required.']}, {}]
         self.assertEqual(serializer.errors, expected)
+
+
+class AttributeMappingOnAutogeneratedFieldsTests(TestCase):
+
+    def setUp(self):
+        class AMOAFModel(RESTFrameworkModel):
+            char_field = models.CharField(max_length=1024, blank=True)
+            comma_separated_integer_field = models.CommaSeparatedIntegerField(max_length=1024, blank=True)
+            decimal_field = models.DecimalField(max_digits=64, decimal_places=32, blank=True)
+            email_field = models.EmailField(max_length=1024, blank=True)
+            file_field = models.FileField(max_length=1024, blank=True)
+            image_field = models.ImageField(max_length=1024, blank=True)
+            slug_field = models.SlugField(max_length=1024, blank=True)
+            url_field = models.URLField(max_length=1024, blank=True)
+
+        class AMOAFSerializer(serializers.ModelSerializer):
+            class Meta:
+                model = AMOAFModel
+
+        self.serializer_class = AMOAFSerializer
+        self.fields_attributes = {
+            'char_field': [
+                ('max_length', 1024),
+            ],
+            'comma_separated_integer_field': [
+                ('max_length', 1024),
+            ],
+            'decimal_field': [
+                ('max_digits', 64),
+                ('decimal_places', 32),
+            ],
+            'email_field': [
+                ('max_length', 1024),
+            ],
+            'file_field': [
+                ('max_length', 1024),
+            ],
+            'image_field': [
+                ('max_length', 1024),
+            ],
+            'slug_field': [
+                ('max_length', 1024),
+            ],
+            'url_field': [
+                ('max_length', 1024),
+            ],
+        }
+
+    def field_test(self, field):
+        serializer = self.serializer_class(data={})
+        self.assertEqual(serializer.is_valid(), True)
+
+        for attribute in self.fields_attributes[field]:
+            self.assertEqual(
+                getattr(serializer.fields[field], attribute[0]),
+                attribute[1]
+            )
+
+    def test_char_field(self):
+        self.field_test('char_field')
+
+    def test_comma_separated_integer_field(self):
+        self.field_test('comma_separated_integer_field')
+
+    def test_decimal_field(self):
+        self.field_test('decimal_field')
+
+    def test_email_field(self):
+        self.field_test('email_field')
+
+    def test_file_field(self):
+        self.field_test('file_field')
+
+    def test_image_field(self):
+        self.field_test('image_field')
+
+    def test_slug_field(self):
+        self.field_test('slug_field')
+
+    def test_url_field(self):
+        self.field_test('url_field')