Module: MemoryModel::Base::Attributes

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

Instance Method Summary collapse

Instance Method Details

#attributes ⇒ Object 



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# File 'lib/memory_model/base/attributes.rb', line 18

def attributes
  @attributes ||= HashWithIndifferentAccess.new
end

#attributes=(hash) ⇒ Object 



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

def attributes=(hash)
  hash.reduce({}) do |hash, (attr, value)|
    hash.merge attr => write_attribute(attr, value)
  end
end

#has_attribute?(key) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/memory_model/base/attributes.rb', line 28

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/attributes.rb', line 37

def inspect
  inspection = fields.reduce([]) { |array, field|
    name = field.name
    array << "#{name}: #{attribute_for_inspect(name)}" if has_attribute?(name)
    array
  }.join(", ")
  inspection = ' ' + inspection if inspection.present?
  super.sub /^(#<[a-z:0-9]+).*>/i, "\\1#{inspection}>"
end

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



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# File 'lib/memory_model/base/attributes.rb', line 47

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/attributes.rb', line 53

def write_attribute(name, value)
  raise InvalidFieldError, name unless fields.include? name
  raise ReadOnlyFieldError, name if fields[name].options[:readonly] && persisted?

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