The `:attributes` adapter is the default one, but it did not support
key transformation. This was very surprising behavior, since the
"Configuration Options" page in the guides didn't mention that this
behavior was not supported by the attributes adapter.
This commit adds key transform support to the attributes adapter, and
adds documentation about the default transform for the attributes
adapter (which is `:unaltered`).
This commit also handles arrays when transforming keys, which was needed
in the case where you're serializing a collection with the Attributes
adapter. With the JSON adapter, it was always guaranteed to pass a hash
to the KeyTransform functions because of the top-level key. Since there
is no top-level key for the Attributes adapter, the return value could
be an array.
* replace reflection collection type with hash to prevent duplicated associations in some cases
* include tests
* Fix robucup offenses
* Improve test
* Remove usless requirement
* improve tests
* remove custom_options option from Post and InheritedPost serializer
* Improve tests
* update changelog
* update changelog
Fix code-styling issues from .rubocop_todo.yml
* re: RuboCop: Bulk minor style corrections
* re: RuboCop - hash indention corrections
* re: RuboCop - replace rocket style hashes
* re: RuboCop - get rid of redundant curly braces around a hash parameter
* re: RuboCop - Align the elements of a hash literal if they span more than one line.
* re: RuboCop - Use nested module/class definition instead of compact style.
* re: RuboCop - Suppress of handling LoadError for optional dependencies
* re: RuboCop - use include_ prefix instead of has_
* re: RuboCop - Disable Style/PredicateName rule for public API methods
* re: RuboCop - Remove empty .rubocop_todo.yml
* re: RuboCop - replace rocket style hashes
* Fix#1759, Grape integration, adds serialization_context
- `serialization_context` is added in grape formatter so grape continues to render models without an explicit call to the `render` helper method
- Made it straightforward for subclasses to add other serializer options (such as `serialization_scope`).
* Updated Grape tests to include:
- paginated collections
- implicit Grape serializer (i.e. without explicit invocation of `render` helper method)
* Update Changelog with fixes.
- improves improves serialization_context to take options and not depend
on a `request` object.
- adds descriptive error on missing serialization_context.
- Document overriding `CollectionSerializer#paginated?`.
These errors are breaking the build, which seems to use RuboCop 0.40 [1]
despite the Gemfile.lock pinning rubocop to 0.38.
New lints that I am updating the code style to reflect:
- Style/EmptyCaseCondition: Do not use empty case condition, instead use
an if expression.
- Style/MultilineArrayBraceLayout: Closing array brace must be on the
same line as the last array element when opening brace is on the same
line as the first array element.
- Style/MultilineHashBraceLayout: Closing hash brace must be on the same
line as the last hash element when opening brace is on the same line
as the first hash element.
- Style/MultilineMethodCallBraceLayout: Closing method call brace must
be on the line after the last argument when opening brace is on a
separate line from the first argument.
[1] https://github.com/bbatsov/rubocop/releases/tag/v0.40.0
This is useful to set application-wide default behavior - e.g. in
previous versions of AMS the default behavior was to serialize the
full object graph by default - equivalent to the '**' include tree.
Currently just the global setting, but I think this could also work
on a per-serializer basis, with more attention.
failing test
use try for when the assoc_data is possibly nil
rubocop test/action_controller/json_api/deserialization_test.rb -a
attempt to work on rails-master
account for rails/master having instead of nil for assoc_data
added changelog
This will prevent objects PORO objects that don't have updated_at defined, from throwing an error.
Not as big a deal now that PORO objects can inherit ActiveModelSerializers::Model, but still necessary if it's not inherited for whatever reason.
Add the Adapter type to the cache key.
This prevents incorrect results when the same object is serialized with different adapters.
BF:
Cherry-pick of
040a97b9e9
which was a squash of
f89ed71058
from pr 1346
It seems that fecthing from memory_store returns a reference to the
object and not a copy. Since the Attributes adapter applies #merge! on
the Hash that is returned from the memory_store, the value in the cache
is also modified.
Status quo in test app:
In Rails
ActionController::Base.cache_store = :memory_store
and then AMS railtie does:
ActiveModelSerializers.config.cache_store = config.action_controller.cache_store
then, in the Railtie
1. ActiveSupport.on_load(:action_controller) fires
- ActiveModelSerializers.config.cache_store #=> nil
- ActionController::Base.cache_store #=> #<ActiveSupport::Cache::FileStore:0x007fe319256760...]
2. After set_configs fires
- ActiveModelSerializers.config.cache_store #+> #<ActiveSupport::Cache::FileStore:0x007fe319256760 ,
3. Tests pass, but notice that we're using the FileStore, not memory store
When we change the config to the test app:
ActionController::Base.cache_store = :memory_store
config = Rails.configuration
config.action_controller.cache_store = :memory_store
then, in the Railtie:
1. ActiveSupport.on_load(:action_controller) fires
- ActiveModelSerializers.config.cache_store #=> nil
- ActionController::Base.cache_store #=> #ActiveSupport::Cache::MemoryStore entries=0, size=0, options={}>]
2. After set_configs fires
- ActiveModelSerializers.config.cache_store #=> :memory_store
3. And we get a lot of failures:
NoMethodError: undefined method `fetch' for :memory_store:Symbol
So, we see that when we set the ActionController::Base.cache_store
directly in our test app, we could set
ActiveModelSerializers.config.cache_store in the :action_controller load
hook, but that would never use the Rails config.
To fix the Rails config, we change the config to the test app:
config = Rails.configuration
config.action_controller.cache_store = :memory_store
and then AMS railtie does:
ActiveModelSerializers.config.cache_store = ActiveSupport::Cache.lookup_store(config.action_controller.cache_store
ActiveSupport.on_load(:action_controller) do
::ActiveModelSerializers.config.cache_store = cache_store
end
then
1. After set_configs fires
- ActiveModelSerializers.config.cache_store #=> <#ActiveSupport::Cache::MemoryStore, object_id 70207113611740
2. ActiveSupport.on_load(:action_controller) fires
- ActionController::Base.cache_store #=> <#ActiveSupport::Cache::MemoryStore, object_id 70207106279660
- ActiveModelSerializers.config.cache_store #=> <#ActiveSupport::Cache::MemoryStore, object_id 70207106279660
(notice the object_id changed)
3. And we get a failure:
1) Failure:
ActiveModelSerializers::CacheTest#test_associations_cache_when_updated
[active_model_serializers/test/cache_test.rb:141]:
--- expected
+++ actual
@@ -1 +1 @@
-{:id=>"post", :title=>"New Post", :body=>"Body"}
+{:id=>"post", :title=>"New Post", :body=>"Body", :comments=>[{:id=>2, :body=>"ZOMG A NEW COMMENT"}], :blog=>{:id=>999, :name=>"Custom blog"}, :author=>{:id=>"author", :name=>"Joao M. D. Moura"}}
If we take out the on_load(:action_controller) hook, we get a ton of
failures. So clearly, our code expects the controller cache to be the
same as the serializer cache.
So, we make sure we use an on_load(:action_controller) hook that runs
after set_configs
And look at the test and see it is filled with direct calls to ActionController::Base.cache_store
assert_equal(new_comment_serializer.attributes, ActionController::Base.cache_store.fetch(new_comment.cache_key))
assert_equal(@post_serializer.attributes, ActionController::Base.cache_store.fetch(@post.cache_key))
But that's not a problem in this case, since they're the same object.
For now, let's remove the :memory_store setting and use the default FileStore
The JSON API adapater dasherizes every key, but the deserializer left the keys
unaltered. Thus, the client had to send underscored keys in the request body in
order for Rails to properly match sent values to model attributes.
This commit adds automatic key transformation on deserialization. Per default the
deserializer transforms the keys to underscore, but this behaviour can also be
changed by including `key_transform` in the deserializer options.
