Class: JsonApi::CollectionSerializer

Inherits:
Object
  • Object
show all
Defined in:
lib/json_api_ruby/serializer.rb

Instance Method Summary collapse

Constructor Details

#initialize(objects, options = {}) ⇒ CollectionSerializer

Returns a new instance of CollectionSerializer.



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# File 'lib/json_api_ruby/serializer.rb', line 62

def initialize(objects, options = {})
  @meta           = options.fetch('meta', Hash.new).stringify_keys
  @objects        = objects
  @includes       = options.fetch('include', [])
  @resource_class = options.fetch('resource_class', nil)
end

Instance Method Details

#assemble_included_data(included_resources) ⇒ Object 



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# File 'lib/json_api_ruby/serializer.rb', line 95

def assemble_included_data(included_resources)
  included_resources.map(&:to_hash)
end

#to_hash ⇒ Object 



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# File 'lib/json_api_ruby/serializer.rb', line 69

def to_hash
  serialized = {}
  included_resources = []

  data_array = @objects.map do |object|
    resource_name  = "#{object.class.to_s.underscore}_resource".classify
    klass_name     = @resource_class || resource_name
    resource_klass = Resources::Discovery.resource_for_name(object, resource_class: klass_name)
    resource       = resource_klass.new(object, include: @includes)
    included_resources += resource.relationships.select {|rel| rel.included?}.flat_map {|rel| rel.resources }

    resource.to_hash
  end

  included_resources.uniq! do |rel|
    rel.id + rel.type
  end

  serialized['data'] = data_array

  serialized['meta'] = @meta if @meta.present?
  serialized['included'] = assemble_included_data(included_resources) if included_resources.present?

  serialized
end