Module: ActiveResourceExtensions::ResourceWithSchema::InstanceMethods

Defined in:
lib/active_resource_extensions/resource_with_schema.rb

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args, &block) ⇒ Object

TODO:

Declare method instead of always relying on method_missing.



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# File 'lib/active_resource_extensions/resource_with_schema.rb', line 66

def method_missing name, *args, &block
  if self.class.is_attribute? name
    value = attributes[name.to_s]
    return if value.nil?
    case self.class.attribute_type name
    when 'Time'
      Time.parse value
    when 'Date'
      Date.parse value
    when 'Integer'
      value.to_i
    when 'Float'
      value.to_f
    when 'Boolean'
      [true, 1, '1'].include? value
    when 'ObjectId'
      value.to_s
    when ''
      value
    else
      begin
        self.class.attribute_type( name ).constantize.new value
      rescue ArgumentError, NameError
        raise ArgumentError, "Can't cast #{value.inspect} into #{self.class.attribute_type( name )}"
      end
    end
  else
    super name, *args, &block
  end
end

Instance Method Details

#load(attributes) ⇒ Object

Automatically add attributes that are referenced in the schema but are not passed as parameters.

Parameters:

  • attributes (Hash) —

    Hash of record’s attributes.

Returns:

  • (Object) —

    self.



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# File 'lib/active_resource_extensions/resource_with_schema.rb', line 57

def load attributes
  super attributes
  for attribute_name in self.class.schema.keys
    @attributes[attribute_name.to_s] = nil unless @attributes.has_key?(attribute_name.to_s)
  end
  self
end

#update_attributes(attributes) ⇒ Boolean

Update attributes of record before saving the record

Parameters:

  • attributes (Hash) —

    Hash of record’s attributes.

Returns:

  • (Boolean) —

    Result of save.



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# File 'lib/active_resource_extensions/resource_with_schema.rb', line 43

def update_attributes( attributes )
  attributes.each_pair do |attribute_name, value|
    raise ArgumentError, "#{attribute_name.inspect} is not declared in schema." unless self.class.is_attribute?( attribute_name )
    @attributes[attribute_name.to_s] = value
  end
  save
end