Categorise DRF Serializer concepts

Based on the Serializers API documentation:
http://www.django-rest-framework.org/api-guide/serializers/

concept-mapping.md

@@ -28,6 +28,38 @@
 
 * `formset_factory` function
 
+## Serializers
+
+* `field = Field()`
+* `nested = Serializer()`
+* `Serializer(partial=True)`
+* `Serializer(many=True)`
+* `Serializer(context=context)`
+* `ModelSerializer`
+ * `Meta.model`
+ * `Meta.fields`
+ * `Meta.exclude`
+ * `Meta.depth` - automatic serializer nesting
+ * `Meta.read_only_fields`
+ * `Meta.extra_kwargs`
+ * `repr(serializer)`
+ * `Meta` inheritance
+ * `serializer_field_mapping` attribute
+ * `serializer_related_field` attribute
+ * `serializer_url_field` attribute
+ * `serializer_choice_field` attribute
+ * `build_standard_field` method
+ * `build_relational_field` method
+ * `build_nested_field` method
+ * `build_property_field` method
+ * `build_url_field` method
+ * `build_unknown_field` method
+* `HyperlinkedModelSerializer`
+* `ListSerializer` - autogenerated by `many=True`
+ * `Serializer.Meta.list_serializer_class`
+ * `Serializer.many_init` classmethod
+* `__init__` for dynamic serializer modification
+
 # Existing data input
 ## Forms
 ### Unbound form
@@ -48,6 +80,13 @@
 * `queryset` parameter to `ModelChoiceField`
 * `queryset` parameter to `ModelMultipleChoiceField`
 
+## Serializers
+
+* `Serializer(instance)`
+ * `serializer.instance`
+* `CurrentUserDefault`
+* `to_representation` method
+
 # New data input
 ## Forms
 ### Bound form
@@ -65,6 +104,13 @@
 * `MultiWidget.decompress` method
 * `Widget.value_from_datadict` method
 
+## Serializers
+
+* `rest_framework.parsers`
+ * `JSONParser().parse(stream)`
+* `Serializer(data=data)`
+ * `serializer.initial_data`
+
 # Validation / data processing
 ## Forms
 ### Bound form
@@ -143,6 +189,21 @@
 * `validators` parameter to `Field`
 * `form.add_error`
 
+## Serializers
+
+* `serializer.is_valid()`
+ * `serializer.is_valid(raise_exception=True)` raises `ValidationError` if validation fails
+* `serializer.validated_data`
+* `serializer.errors`
+* `validate_<fieldname>` methods on `Serializer` subclasses
+* `Serializer.validate` method
+* `SerializerField(validators=validators)`
+ * These are not expected to return a value, so cannot be used for data processing
+* `Serializer.Meta.validators`
+ * `UniqueTogetherValidator(queryset=queryset, fields=fields)`
+* `required` parameter to `Field` and `Serializer`
+* `to_internal_value` method
+
 # Rendering
 ## Forms
 
@@ -232,6 +293,11 @@
 
 * `formset_factory` function
 
+## Serializers
+
+* `rest_framework.renderers`
+ * `JSONRenderer().render(serializer.data)`
+
 # Data output
 ## Forms
 ### Bound form
@@ -246,3 +312,13 @@
 * `path` parameter to `FilePathField`
 * `recursive` parameter to `FilePathField`
 * `match` parameter to `FilePathField`
+
+## Serializers
+
+* `Serializer.create` method
+* `Serializer.update` method
+* `Serializer.save` method
+ * default `save` accepts `**kwargs`: `serializer.save(owner=request.user)`
+* `ListSerializer`
+ * `create` method
+ * `update` method