Module: ActiveForm::Mixins::Casting

Defined in:
lib/active_form/mixins/casting.rb

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/active_form/mixins/casting.rb', line 5

def self.included(base)    
  base.send(:extend, ClassMethods)
  base.send(:attr_reader, :type_cast)
end

Instance Method Details

#cast_value(value) ⇒ Object 



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# File 'lib/active_form/mixins/casting.rb', line 10

def cast_value(value)
  if self.respond_to?(:casting_filter)
    self.casting_filter(value)
  elsif self.class.respond_to?(:casting_filter)
    self.class.casting_filter(value)
  else
    value
  end
end

#casting_for_array ⇒ Object 



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# File 'lib/active_form/mixins/casting.rb', line 46

def casting_for_array
  [lambda { |value| value.is_a?(Array) ? value : [*value] }, lambda { |value| [*value].join(', ') }]
end

#casting_for_boolean ⇒ Object 



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# File 'lib/active_form/mixins/casting.rb', line 63

def casting_for_boolean
  [self.class.method_to_proc(:value_to_boolean), self.class.method_to_proc(:boolean_to_value)]
end

#casting_for_date ⇒ Object 



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# File 'lib/active_form/mixins/casting.rb', line 59

def casting_for_date
  [self.class.method_to_proc(:string_to_date), self.class.method_to_proc(:date_to_string)]
end

#casting_for_datetime ⇒ Object Also known as: casting_for_timestamp 



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# File 'lib/active_form/mixins/casting.rb', line 50

def casting_for_datetime
  [self.class.method_to_proc(:string_to_time), self.class.method_to_proc(:time_to_string)]
end

#casting_for_float ⇒ Object 



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# File 'lib/active_form/mixins/casting.rb', line 42

def casting_for_float
  [lambda { |value| value.is_a?(Float) ? value : value.to_f rescue 0 }, nil]
end

#casting_for_integer ⇒ Object 



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# File 'lib/active_form/mixins/casting.rb', line 34

def casting_for_integer
  [lambda { |value| value.is_a?(Integer) ? value : value.to_i rescue value ? 1 : 0 }, nil]
end

#casting_for_string ⇒ Object Also known as: casting_for_text 



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# File 'lib/active_form/mixins/casting.rb', line 29

def casting_for_string
  [lambda { |value| value.is_a?(String) ? value : value.to_s }, nil]
end

#casting_for_time ⇒ Object 



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# File 'lib/active_form/mixins/casting.rb', line 55

def casting_for_time
  [self.class.method_to_proc(:string_to_dummy_time), self.class.method_to_proc(:time_to_string)]
end

#casting_for_yaml ⇒ Object 



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# File 'lib/active_form/mixins/casting.rb', line 38

def casting_for_yaml
  [self.class.method_to_proc(:yaml_to_data), self.class.method_to_proc(:data_to_yaml)]
end

#define_casting_filter(prc = nil, &block) ⇒ Object Also known as: casting_filter= 



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# File 'lib/active_form/mixins/casting.rb', line 67

def define_casting_filter(prc = nil, &block)
  define_singleton_method(:casting_filter, &(block_given? ? block : prc))
end

#reset_casting_filter ⇒ Object 



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# File 'lib/active_form/mixins/casting.rb', line 72

def reset_casting_filter
  define_singleton_method(:casting_filter) rescue nil
end

#type_cast=(type = :string) ⇒ Object 



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# File 'lib/active_form/mixins/casting.rb', line 20

def type_cast=(type = :string) 
  if self.respond_to?("casting_for_#{type}")
    @type_cast = type.to_sym
    cast, intern = self.send("casting_for_#{type}")
    define_casting_filter(cast) if cast
    define_formatting_filter(intern) if intern
  end
end