Class: AbcJsonapi::IncludedResource

Inherits:
Object
  • Object
show all
Defined in:
lib/abc_jsonapi/included_resource.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(resource:, includes:, serializer_namespace:) ⇒ IncludedResource

Returns a new instance of IncludedResource.



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# File 'lib/abc_jsonapi/included_resource.rb', line 5

def initialize(resource:, includes:, serializer_namespace:)
  @includes_result = []
  @resource = resource
  @includes = includes
  @serializer_namespace = serializer_namespace
end

Instance Attribute Details

#includes ⇒ Object (readonly)

Returns the value of attribute includes.



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# File 'lib/abc_jsonapi/included_resource.rb', line 3

def includes
  @includes
end

#includes_result ⇒ Object (readonly)

Returns the value of attribute includes_result.



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# File 'lib/abc_jsonapi/included_resource.rb', line 3

def includes_result
  @includes_result
end

#resource ⇒ Object (readonly)

Returns the value of attribute resource.



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# File 'lib/abc_jsonapi/included_resource.rb', line 3

def resource
  @resource
end

#serializer_namespace ⇒ Object (readonly)

Returns the value of attribute serializer_namespace.



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# File 'lib/abc_jsonapi/included_resource.rb', line 3

def serializer_namespace
  @serializer_namespace
end

Instance Method Details

#get_included_records(resource, include_chain) ⇒ Object 



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# File 'lib/abc_jsonapi/included_resource.rb', line 26

def get_included_records(resource, include_chain)
  return if resource.nil? || include_chain.empty?

  # Get first include name of include_chain and delete it from include_chain
  inc_resource_name = include_chain.shift

  # Check if include name is exist in relationships array. Take it or return nil
  resource_class_name = resource.is_a?(Enumerable) ? resource[0].class.name : resource.class.name
  relationship = serializer(resource_class_name).relationships.find { |h| h[:name] == inc_resource_name.to_sym }
  return if relationship.nil?

  # Get included resource
  if resource.is_a?(Enumerable)
    resource = included_items_from_collection(resource, inc_resource_name)
  else
    resource = resource.public_send(inc_resource_name)
  end
  return if resource.nil?
  
  @includes_result << serializer(inc_resource_name).new(resource).serializable_hash[:data]
  
  # If resource is a collection call get_included_records for each. Otherwise send whole resource
  if resource.is_a?(Enumerable)
    resource.each do |single_res|
      get_included_records(single_res, include_chain.dup)
    end
  else
    get_included_records(resource, include_chain)
  end
end

#included_items_from_collection(collection, include_name) ⇒ Object 



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# File 'lib/abc_jsonapi/included_resource.rb', line 57

def included_items_from_collection(collection, include_name)
  # Run custom include strategy if block given. Otherwise run default method
  if (block = relationship.dig(:block)).present?
    block.call(resource)
  else
    collection.map(&:include_name).flatten.uniq
  end
end

#serializable_hash ⇒ Object 



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# File 'lib/abc_jsonapi/included_resource.rb', line 12

def serializable_hash
  includes.each do |include_path|
    include_chain = include_path.split('.')
    if resource.is_a?(Enumerable)
      resource.each do |single_res|
        get_included_records(single_res, include_chain.dup)
      end
    else
      get_included_records(resource, include_chain)
    end
  end
  includes_result.flatten
end

#serializer(included_resource_name) ⇒ Object 



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# File 'lib/abc_jsonapi/included_resource.rb', line 66

def serializer(included_resource_name)
  (serializer_namespace + included_resource_name.to_s.classify + 'Serializer').constantize
end