Module: ActiveEntity::Typecasting

Included in:
Coercion
Defined in:
lib/active_entity/typecasting.rb

Overview

Offers explicit type conversion. This depends ‘ActiveEntity::Accessor#defined_attributes`.

Instance Method Summary collapse

Instance Method Details

#cast ⇒ nil

Try to cast attribute values. When fails to cast, ignores error and left attribute value as original one.

Returns:

  • (nil) 


25
26
27
28
29
30
31
32
33
34
35
36
37
 
# File 'lib/active_entity/typecasting.rb', line 25

def cast
  defined_attributes.each do |name, attr|
    value = public_send(name)
    next if value.nil?

    begin
      casted = attr.cast!(value)
      public_send("#{name}=", casted)
    rescue ActiveEntity::CastError
    end
  end
  nil
end

#cast! ⇒ nil

Try to cast attribute values. When fails to cast, raises the error and rollbacks all values.

Returns:

  • (nil)

Raises:



10
11
12
13
14
15
16
17
18
19
 
# File 'lib/active_entity/typecasting.rb', line 10

def cast!
  casted_values = defined_attributes.map do |name, attr|
    value = public_send(name)
    next [name, nil] if value.nil?
    [name, attr.cast!(value)]
  end

  casted_values.each {|name, casted| public_send("#{name}=", casted) }
  nil
end