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.
NoMethodError is current_user is nil, so nil.admin?
NameError is a superclass of NoMethodError (which Rails 4.0 won't allow)
and means current_user might not be defined
- Setup dummy app files in `test/dummy`
- Setup dummy test server `bin/serve_dummy
- Note: Serializer caching can be completely disabled by passing in
`CACHE_ON=off bin/serve_dummy start` since Serializer#_cache is only
set at boot.
- run with
- ./bin/bench
- `bin/bench` etc adapted from ruby-bench-suite
- target files are `test/dummy/bm_*.rb`. Just add another to run it.
- benchmark cache/no cache
- remove rake dependency that loads unnecessary files
- remove git gem dependency
- Running over revisions to be added in subsequent PR
Adding a benchmak test structure to help contributors to keep track
of how their PR will impact overall performance.
It enables developers to create test inside of tests/benchmark.
This implementation adds a rake task: ```rake benchmark``` that checkout
one commit before, run the test of tests/benchmark, then mover back to
the last commit and run it again. By comparing the benchmark results between
both commits the contributor will notice if and how much his contribution
will impact overall performance.
- The removed classes and modules were added back with deprecation
warning and deprecation test were added for them.
- One test was renamed because it contained `__`.
- Some tests were refactored.
- The ActiveModelSerializers::Deserialization module is now called
Adapter instead of ActiveModelSerializers::Adapter.
- The changelog was added for #1535
Idea per remear (Ben Mills) in the slack:
https://amserializers.slack.com/archives/general/p1455140474000171
remear:
just so i understand, the adapter in `render json: resource, status: 422, adapter: 'json_api/error',
serializer: ActiveModel::Serializer::ErrorSerializer` is a different one than, say what i’ve
specified in a base serializer with `ActiveModel::Serializer.config.adapter = :json_api`. correct?
and a followup question of, why not same adapter but different serializer?
me:
With the way the code is written now, it might be possible to not require a special jsonapi adapter.
However, the behavior is pretty different from the jsonapi adapter.
this first draft of the PR had it automatically set the adapter if there were errors. since that
requires more discussion, I took a step back and made it explicit for this PR
If I were to re-use the json api adapter and remove the error one, it think the serializable hash
method would look like
```
def serializable_hash(options = nil)
return { errors: JsonApi::Error.collection_errors } if serializer.is_a?(ErrorsSerializer)
return { errors: JsonApi::Error.resource_errors(serializer) } if serializer.is_a?(ErrorSerializer)
options ||= {}
```
I suppose it could be something more duckish like
```
def serializable_hash(options = nil)
if serializer.errors? # object.errors.any? || object.any? {|o| o.errors.any? }
JsonApi::Error.new(serializer).serializable_hash
else
# etc
```
