Module: MemoryModel::Base::Attributable

Extended by:
ActiveSupport::Concern
Includes:
ActiveModel::AttributeMethods, ActiveModel::Dirty
Included in:
MemoryModel::Base
Defined in:
lib/memory_model/base/attributable.rb

Instance Method Summary collapse

Instance Method Details

#has_attribute?(key) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/memory_model/base/attributable.rb', line 13

def has_attribute?(key)
  case value = @attributes[key]
  when NilClass, String
    !value.nil?
  else
    value.present?
  end
end

#inspect ⇒ Object 



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# File 'lib/memory_model/base/attributable.rb', line 22

def inspect
  inspection = if @attributes
                 fields.reduce([]) { |array, name|
                   array << "#{name}: #{attribute_for_inspect(name)}" if has_attribute?(name)
                   array
                 }.join(", ")
               else
                 "not initialized"
               end
  "#<#{[self.class, inspection].join(' ')}>"
end

#read_attribute(name) ⇒ Object Also known as: [] 



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# File 'lib/memory_model/base/attributable.rb', line 34

def read_attribute(name)
  @attributes[name]
end

#write_attribute(name, value) ⇒ Object Also known as: []=

Raises:



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# File 'lib/memory_model/base/attributable.rb', line 40

def write_attribute(name, value)
  raise MemoryModel::InvalidFieldError,
        "#{name} is not a valid field" unless fields.include? name
  raise MemoryModel::FieldReadOnlyError,
        "#{name} is read only" if fields[name].options[:readonly]

  send "#{name}_will_change!" unless value == read_attribute(name) || new_record?
  @attributes[name] = value
end