Class: Pgai::Resources::Attributes::Attribute

Inherits:
Object
  • Object
show all
Defined in:
lib/pgai/resources/attributes.rb

Constant Summary collapse

FALSE_VALUES = 
[
  "0", "f", "F", "false", "FALSE",
  "off", "OFF", "NO", "no"
].to_set.freeze
TYPES = 
{
  string: ->(value) { value.to_s },
  integer: ->(value) { value.to_i },
  decimal: ->(value) { value.to_f },
  boolean: ->(value) { !FALSE_VALUES.include?(value.to_s) },
  datetime: ->(value) { ::Time.at(::Time.new(value.to_s, in: "UTC")) }
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, type, default) {|_self| ... } ⇒ Attribute

Returns a new instance of Attribute.

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/pgai/resources/attributes.rb', line 29

def initialize(name, type, default)
  @name = name
  @type = type
  @default = default

  yield self if block_given?
end

Instance Attribute Details

#default ⇒ Object (readonly)

Returns the value of attribute default.



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# File 'lib/pgai/resources/attributes.rb', line 27

def default
  @default
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/pgai/resources/attributes.rb', line 25

def name
  @name
end

#type ⇒ Object (readonly)

Returns the value of attribute type.



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# File 'lib/pgai/resources/attributes.rb', line 26

def type
  @type
end

Instance Method Details

#cast(value) ⇒ Object 



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# File 'lib/pgai/resources/attributes.rb', line 37

def cast(value)
  TYPES.fetch(type).call(value)
end

#cast_or_default(user_value) ⇒ Object 



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# File 'lib/pgai/resources/attributes.rb', line 41

def cast_or_default(user_value)
  value = default
  value = cast(user_value) unless user_value.nil?
  value = value.call if value.respond_to?(:call)
  value
end