Module: ActiveModel::Datastore::PropertyValues

Extended by:
ActiveSupport::Concern
Included in:
ActiveModel::Datastore
Defined in:
lib/active_model/datastore/property_values.rb

Instance Method Summary collapse

Instance Method Details

#default_property_value(attr, value) ⇒ Object

Sets a default value for the property if not currently set.

Example:

default_property_value :state, 0

is equivalent to:

self.state = state.presence || 0

Example:

default_property_value :enabled, false

is equivalent to:

self.enabled = false if enabled.nil?



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# File 'lib/active_model/datastore/property_values.rb', line 22

def default_property_value(attr, value)
  if value.is_a?(TrueClass) || value.is_a?(FalseClass)
    send("#{attr.to_sym}=", value) if send(attr.to_sym).nil?
  else
    send("#{attr.to_sym}=", send(attr.to_sym).presence || value)
  end
end

#format_property_value(attr, type) ⇒ Object

Converts the type of the property.

Example:

format_property_value :weight, :float

is equivalent to:

self.weight = weight.to_f if weight.present?



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# File 'lib/active_model/datastore/property_values.rb', line 39

def format_property_value(attr, type)
  return unless send(attr.to_sym).present?

  case type.to_sym
  when :integer
    send("#{attr.to_sym}=", send(attr.to_sym).to_i)
  when :float
    send("#{attr.to_sym}=", send(attr.to_sym).to_f)
  when :boolean
    send("#{attr.to_sym}=", ActiveModel::Type::Boolean.new.cast(send(attr.to_sym)))
  else
    raise ArgumentError, 'Supported types are :boolean, :integer, :float'
  end
end