Class: Sirens::ValueModel

Inherits:
Object
  • Object
show all
Includes:
Observable
Defined in:
lib/models/value_model.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(value = nil) ⇒ ValueModel

Initializing



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# File 'lib/models/value_model.rb', line 15

def initialize(value = nil)
    super()

    @value = value
end

Class Method Details

.on(value) ⇒ Object 



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# File 'lib/models/value_model.rb', line 8

def on(value)
    self.new(value)
end

Instance Method Details

#announce_value_changed(new_value:, old_value:) ⇒ Object 



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# File 'lib/models/value_model.rb', line 37

def announce_value_changed(new_value:, old_value:)
    changed

    notify_observers(
        ValueChanged.new(new_value: new_value, old_value: old_value)
    )
end

#set_value(new_value) ⇒ Object 



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# File 'lib/models/value_model.rb', line 27

def set_value(new_value)
    return if value == new_value

    old_value = value

    @value = new_value

    announce_value_changed(new_value: new_value, old_value: old_value)
end

#value ⇒ Object

Accessing



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# File 'lib/models/value_model.rb', line 23

def value()
    @value
end