Class: ActiveModelSerializers::Adapter::JsonApi

Inherits:
Base
  • Object
show all
Extended by:
ActiveSupport::Autoload
Defined in:
lib/active_model_serializers/adapter/json_api.rb,
lib/active_model_serializers/adapter/json_api/link.rb,
lib/active_model_serializers/adapter/json_api/meta.rb,
lib/active_model_serializers/adapter/json_api/error.rb,
lib/active_model_serializers/adapter/json_api/jsonapi.rb,
lib/active_model_serializers/adapter/json_api/relationship.rb,
lib/active_model_serializers/adapter/json_api/deserialization.rb,
lib/active_model_serializers/adapter/json_api/pagination_links.rb,
lib/active_model_serializers/adapter/json_api/resource_identifier.rb

Defined Under Namespace

Modules: Deserialization, Error, Jsonapi Classes: Link, Meta, PaginationLinks, Relationship, ResourceIdentifier

Instance Attribute Summary

Attributes inherited from Base

#instance_options, #serializer

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

#as_json, #cache_key, cache_key, inherited, transform, transform_key_casing!

Constructor Details

#initialize(serializer, options = {}) ⇒ JsonApi

Returns a new instance of JsonApi.



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# File 'lib/active_model_serializers/adapter/json_api.rb', line 53

def initialize(serializer, options = {})
  super
  @include_directive = JSONAPI::IncludeDirective.new(options[:include], allow_wildcard: true)
  @fieldset = options[:fieldset] || ActiveModel::Serializer::Fieldset.new(options.delete(:fields))
end

Class Method Details

.default_key_transform ⇒ Object 



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# File 'lib/active_model_serializers/adapter/json_api.rb', line 38

def self.default_key_transform
  :dash
end

.fragment_cache(cached_hash, non_cached_hash, root = true) ⇒ Object 



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# File 'lib/active_model_serializers/adapter/json_api.rb', line 42

def self.fragment_cache(cached_hash, non_cached_hash, root = true)
  core_cached       = cached_hash.first
  core_non_cached   = non_cached_hash.first
  no_root_cache     = cached_hash.delete_if { |key, _value| key == core_cached[0] }
  no_root_non_cache = non_cached_hash.delete_if { |key, _value| key == core_non_cached[0] }
  cached_resource   = (core_cached[1]) ? core_cached[1].deep_merge(core_non_cached[1]) : core_non_cached[1]
  hash = root ? { root => cached_resource } : cached_resource

  hash.deep_merge no_root_non_cache.deep_merge no_root_cache
end

Instance Method Details

#failure_document ⇒ Object

JSON API Errors TODO: look into caching definition:

☑ toplevel_errors array (required)
☐ toplevel_meta
☐ toplevel_jsonapi

structure:

{
  errors: toplevel_errors,
  meta: toplevel_meta,
  jsonapi: toplevel_jsonapi
}.reject! {|_,v| v.nil? }

prs:

https://github.com/rails-api/active_model_serializers/pull/1004



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# File 'lib/active_model_serializers/adapter/json_api.rb', line 174

def failure_document
  hash = {}
  # PR Please :)
  # Jsonapi.add!(hash)

  # toplevel_errors
  # definition:
  #   array of unique items of type 'error'
  # structure:
  #   [
  #     error,
  #     error
  #   ]
  if serializer.respond_to?(:each)
    hash[:errors] = serializer.flat_map do |error_serializer|
      Error.resource_errors(error_serializer, instance_options)
    end
  else
    hash[:errors] = Error.resource_errors(serializer, instance_options)
  end
  hash
end

#fragment_cache(cached_hash, non_cached_hash) ⇒ Object 



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# File 'lib/active_model_serializers/adapter/json_api.rb', line 70

def fragment_cache(cached_hash, non_cached_hash)
  root = !instance_options.include?(:include)
  self.class.fragment_cache(cached_hash, non_cached_hash, root)
end

#serializable_hash ⇒ Object

Requests are transactional, i.e. success or failure data and errors MUST NOT coexist in the same document.



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# File 'lib/active_model_serializers/adapter/json_api.rb', line 61

def serializable_hash(*)
  document = if serializer.success?
               success_document
             else
               failure_document
             end
  self.class.transform_key_casing!(document, instance_options)
end

#success_document ⇒ Object

Primary data definition:

☐ toplevel_data (required)
☐ toplevel_included
☑ toplevel_meta
☑ toplevel_links
☑ toplevel_jsonapi

structure:

{
  data: toplevel_data,
  included: toplevel_included,
  meta: toplevel_meta,
  links: toplevel_links,
  jsonapi: toplevel_jsonapi
}.reject! {|_,v| v.nil? }

rubocop:disable Metrics/CyclomaticComplexity



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# File 'lib/active_model_serializers/adapter/json_api.rb', line 91

def success_document
  is_collection = serializer.respond_to?(:each)
  serializers = is_collection ? serializer : [serializer]
  primary_data, included = resource_objects_for(serializers)

  hash = {}
  # toplevel_data
  # definition:
  #   oneOf
  #     resource
  #     array of unique items of type 'resource'
  #     null
  #
  # description:
  #   The document's "primary data" is a representation of the resource or collection of resources
  #   targeted by a request.
  #
  #   Singular: the resource object.
  #
  #   Collection: one of an array of resource objects, an array of resource identifier objects, or
  #   an empty array ([]), for requests that target resource collections.
  #
  #   None: null if the request is one that might correspond to a single resource, but doesn't currently.
  # structure:
  #  if serializable_resource.resource?
  #    resource
  #  elsif serializable_resource.collection?
  #    [
  #      resource,
  #      resource
  #    ]
  #  else
  #    nil
  #  end
  hash[:data] = is_collection ? primary_data : primary_data[0]
  # toplevel_included
  #   alias included
  # definition:
  #   array of unique items of type 'resource'
  #
  # description:
  #   To reduce the number of HTTP requests, servers **MAY** allow
  #   responses that include related resources along with the requested primary
  #   resources. Such responses are called "compound documents".
  # structure:
  #     [
  #       resource,
  #       resource
  #     ]
  hash[:included] = included if included.any?

  Jsonapi.add!(hash)

  if instance_options[:links]
    hash[:links] ||= {}
    hash[:links].update(instance_options[:links])
  end

  if is_collection && serializer.paginated?
    hash[:links] ||= {}
    hash[:links].update(pagination_links_for(serializer))
  end

  hash[:meta] = instance_options[:meta] unless instance_options[:meta].blank?

  hash
end