Class: ClassKit::Helper

Inherits:
Object
  • Object
show all
Defined in:
lib/class_kit/helper.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Helper

Returns a new instance of Helper.



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# File 'lib/class_kit/helper.rb', line 4

def initialize
  @hash_helper = HashKit::Helper.new
  @json_helper = JsonKit::Helper.new
  @attribute_helper = ClassKit::AttributeHelper.new
  @value_helper = ClassKit::ValueHelper.new
end

Instance Method Details

#from_hash(hash:, klass:) ⇒ Object 



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# File 'lib/class_kit/helper.rb', line 35

def from_hash(hash:, klass:)
  validate_class_kit(klass)
  hash = @hash_helper.symbolize(hash)
  entity = klass.new
  attributes = @attribute_helper.get_attributes(klass)
  attributes.each do |a|
    key = a[:name]
    type = a[:type]

    #if the hash value is nil skip it
    if hash[key] == nil
      next
    end

    if is_class_kit?(type)
      value = from_hash(hash: hash[key], klass: type)
    elsif type == Array
      value = hash[key].map do |i|
        if a[:collection_type] != nil
          if is_class_kit?(a[:collection_type])
            from_hash(hash: i, klass: a[:collection_type])
          else
            @value_helper.parse(type: a[:collection_type], value: i)
          end
        else
          i
        end
      end
    else
      value = hash[key]
    end
    eval("entity.#{key}=value")
  end
  return entity
end

#from_json(json:, klass:) ⇒ Object 



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# File 'lib/class_kit/helper.rb', line 75

def from_json(json:, klass:)
  hash = JSON.load(json)
  return from_hash(hash: hash, klass: klass)
end

#is_class_kit?(klass) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/class_kit/helper.rb', line 11

def is_class_kit?(klass)
  begin
    if !klass.class_variable_defined?(:@@is_class_kit_class)
      return false
    end
  rescue
    return false
  end

  return true
end

#to_hash(object) ⇒ Object 



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# File 'lib/class_kit/helper.rb', line 30

def to_hash(object)
  validate_class_kit(object.class)
  return @hash_helper.to_hash(object)
end

#to_json(object) ⇒ Object 



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# File 'lib/class_kit/helper.rb', line 71

def to_json(object)
  @json_helper.to_json(object)
end

#validate_class_kit(klass) ⇒ Object 



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# File 'lib/class_kit/helper.rb', line 23

def validate_class_kit(klass)
  if !is_class_kit?(klass)
    raise ClassKit::Exceptions::InvalidClassError.new("Class: #{klass} does not implement ClassKit.")
  end
  return true
end