Class: ChartMogul::Object

Inherits:
Object
  • Object
show all
Defined in:
lib/chartmogul/object.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(attributes = {}) ⇒ Object

Returns a new instance of Object.



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# File 'lib/chartmogul/object.rb', line 63

def initialize(attributes = {})
  assign_writeable_attributes(attributes)
end

Class Method Details

.attributes ⇒ Object 



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# File 'lib/chartmogul/object.rb', line 6

def attributes
  @attributes ||= Set.new
end

.define_private_writer(attribute, type) ⇒ Object 



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# File 'lib/chartmogul/object.rb', line 39

def define_private_writer(attribute, type)
  if type == :time
    define_method("set_#{attribute}") do |value|
      instance_variable_set("@#{attribute}", value && Time.parse(value))
    end
  elsif type == :date
    define_method("set_#{attribute}") do |value|
      instance_variable_set("@#{attribute}", value && Date.strptime(value, '%Y-%m-%d'))
    end
  else
    define_method("set_#{attribute}") do |value|
      instance_variable_set("@#{attribute}", value)
    end
  end
  private "set_#{attribute}"
end

.define_reader(attribute, default) ⇒ Object 



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# File 'lib/chartmogul/object.rb', line 29

def define_reader(attribute, default)
  define_method(attribute) do
    if instance_variable_defined?("@#{attribute}")
      instance_variable_get("@#{attribute}")
    else
      instance_variable_set("@#{attribute}", default)
    end
  end
end

.define_writer(attribute) ⇒ Object 



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# File 'lib/chartmogul/object.rb', line 56

def define_writer(attribute)
  define_method("#{attribute}=") do |value|
    instance_variable_set("@#{attribute}", value)
  end
end

.new_from_json(attributes = {}) ⇒ Object 



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# File 'lib/chartmogul/object.rb', line 67

def self.new_from_json(attributes={})
  self.new.tap do |resource|
    resource.assign_all_attributes(attributes)
  end
end

.readonly_attr(attribute, options = {}) ⇒ Object 



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# File 'lib/chartmogul/object.rb', line 14

def readonly_attr(attribute, options = {})
  attributes << attribute.to_sym
  define_reader(attribute, options[:default])
  define_private_writer(attribute, options[:type])
end

.writeable_attr(attribute, options = {}) ⇒ Object 



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# File 'lib/chartmogul/object.rb', line 20

def writeable_attr(attribute, options = {})
  attributes << attribute.to_sym
  writeable_attributes << attribute.to_sym

  define_reader(attribute, options[:default])
  define_writer(attribute)
  define_private_writer(attribute, options[:type])
end

.writeable_attributes ⇒ Object 



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# File 'lib/chartmogul/object.rb', line 10

def writeable_attributes
  @writeable_attributes ||= Set.new
end

Instance Method Details

#allowed_for_write?(serialized_value) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chartmogul/object.rb', line 102

def allowed_for_write?(serialized_value)
  return false if serialized_value.is_a?(Array) && serialized_value.empty?
  return false if serialized_value.nil?

  true
end

#assign_all_attributes(new_values) ⇒ Object 



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# File 'lib/chartmogul/object.rb', line 87

def assign_all_attributes(new_values)
  self.class.attributes.each do |attr|
    self.send("set_#{attr}", new_values[attr]) if new_values.key?(attr)
  end

  self
end

#assign_writeable_attributes(new_values) ⇒ Object 



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# File 'lib/chartmogul/object.rb', line 79

def assign_writeable_attributes(new_values)
  self.class.writeable_attributes.each do |attr, value|
    self.send("#{attr}=", new_values[attr]) if new_values.key?(attr)
  end

  self
end

#instance_attributes ⇒ Object 



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# File 'lib/chartmogul/object.rb', line 73

def instance_attributes
  self.class.attributes.each_with_object({}) do |attribute, hash|
    hash[attribute] = send(attribute)
  end
end

#serialize_for_write ⇒ Object 



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# File 'lib/chartmogul/object.rb', line 95

def serialize_for_write
  self.class.writeable_attributes.each_with_object({}) do |attr, attrs|
    serialized_value = serialized_value_for_attr(attr)
    attrs[attr] = serialized_value if allowed_for_write?(serialized_value)
  end
end

#serialized_value_for_attr(attr) ⇒ Object 



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# File 'lib/chartmogul/object.rb', line 109

def serialized_value_for_attr(attr)
  serialize_method_name = "serialize_#{attr}"

  if respond_to?(serialize_method_name)
    send(serialize_method_name)
  else
    send(attr)
  end
end