Module: Donatello

Extended by:
Forwardable
Defined in:
lib/donatello.rb,
lib/donatello/railtie.rb,
lib/donatello/version.rb,
lib/donatello/serializer.rb

Overview

rubocop:disable Style/Documentation

Defined Under Namespace

Classes: Config, Railtie

Constant Summary collapse

VERSION = 
"0.1.0"
MAX_LEVELS =

TODO: make this configurable

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Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.config ⇒ Object 



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# File 'lib/donatello.rb', line 34

def config
  @config ||= Config.new
end

.reset! ⇒ Object 



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# File 'lib/donatello.rb', line 30

def reset!
  @config = nil
end

.setup {|config| ... } ⇒ Object

Yields:



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# File 'lib/donatello.rb', line 26

def setup
  yield config if block_given?
end

Instance Method Details

#apply_schema(object, schema_name, current_level = 0) ⇒ Object

rubocop:disable Metrics/MethodLength,Metrics/AbcSize,Metrics/CyclomaticComplexity,Metrics/PerceivedComplexity



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# File 'lib/donatello/serializer.rb', line 12

def apply_schema(object, schema_name, current_level = 0) # rubocop:disable Metrics/MethodLength,Metrics/AbcSize,Metrics/CyclomaticComplexity,Metrics/PerceivedComplexity
  # Stack level is too deep, return
  return { schema_name => nil } if current_level > MAX_LEVELS || object.nil?

  schema = Donatello.schema[schema_name.to_s]

  # Handle empty schemas
  # ex. schema: `empty:`
  return nil if schema.nil?

  # Handle collections of objects
  if non_hash_enumerable?(object)
    result = object.map do |o|
      apply_schema(o, schema_name, current_level + 1)[schema_name]
    end
    return { schema_name => result }
  end

  # We can process this schema
  result = schema.inject({}) do |acc, item|
    # TODO: detect cycles
    # TODO: add a test for cycles
    # TODO: add a pretty print to show the stack when stack level too deep
    # TODO: add a pretty print to show the stack when there's a cycle
    if item.is_a?(Hash)
      if item["with"]
        acc.merge(
          handle_with(object, item, current_level)
        )
      else
        acc.merge(
          handle_attribute_config(object, item, current_level)
        )
      end
    elsif object.respond_to?(item)
      acc.merge(
        handle_attribute(object, item)
      )
    else
      handle_exception(object, item)
    end
  end

  { schema_name => result }
end

#serialize(object, schema_name) ⇒ Object 



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# File 'lib/donatello/serializer.rb', line 6

def serialize(object, schema_name)
  applied = apply_schema(object, schema_name, 0)
  # Don't include the root
  applied ? Oj.dump(applied[schema_name]) : Oj.dump(nil)
end