Class: Convection::Model::Template::Resource::PropertyInstance

Inherits:
Object
  • Object
show all
Defined in:
lib/convection/model/template/resource.rb

Overview

An instance of a poperty in a resoruce

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(resource, property = nil) ⇒ PropertyInstance

Returns a new instance of PropertyInstance



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# File 'lib/convection/model/template/resource.rb', line 96

def initialize(resource, property = nil)
  @resource = resource
  @property = property
end

Instance Attribute Details

#current_value ⇒ Object

Returns the value of attribute current_value



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# File 'lib/convection/model/template/resource.rb', line 94

def current_value
  @current_value
end

#property ⇒ Object (readonly)

Returns the value of attribute property



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# File 'lib/convection/model/template/resource.rb', line 92

def property
  @property
end

#resource ⇒ Object (readonly)

Returns the value of attribute resource



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# File 'lib/convection/model/template/resource.rb', line 91

def resource
  @resource
end

#value ⇒ Object (readonly)

Returns the value of attribute value



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# File 'lib/convection/model/template/resource.rb', line 93

def value
  @value
end

Instance Method Details

#current(val) ⇒ Object 



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# File 'lib/convection/model/template/resource.rb', line 142

def current(val)
  @current_value = @value = val
end

#default ⇒ Object 



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# File 'lib/convection/model/template/resource.rb', line 137

def default
  return if property.nil?
  property.default
end

#transform(value) ⇒ Object 



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# File 'lib/convection/model/template/resource.rb', line 101

def transform(value)
  return value if property.nil?
  property.transform.inject(value) { |a, e| resource.instance_exec(a, &e) }
end

#validate!(value) ⇒ Object 



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# File 'lib/convection/model/template/resource.rb', line 106

def validate!(value)
  return value if property.nil?

  if resource.exist? && property.immutable && current_value != value
    fail ArgumentError,
         "Property #{ property.name } is immutable!"
  end

  if property.required && value.nil?
    fail ArgumentError,
         "Property #{ property.name } is required!"
  end

  unless property.equal_to.empty? || property.equal_to.include?(value)
    fail ArgumentError,
         "Property #{ property.name } must be one of #{ property.equal_to.join(', ') }!"
  end

  unless property.kind_of.empty? || property.kind_of.any? { |t| value.is_a?(t) }
    fail ArgumentError,
         "Property #{ property.name } must be one of #{ property.kind_of.join(', ') }!"
  end

  unless !property.regex || property.regex.match(value.to_s)
    fail ArgumentError,
         "Property #{ property.name } must match #{ property.regex.inspect }!"
  end

  value
end