Module: Lab42::DataClass::Proxy::Constraints

Included in:
Lab42::DataClass::Proxy
Defined in:
lib/lab42/data_class/proxy/constraints.rb,
lib/lab42/data_class/proxy/constraints/maker.rb

Defined Under Namespace

Modules: Maker

Instance Method Summary collapse

Instance Method Details

#check_constraints_against_defaults(constraints) ⇒ Object

Raises:



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# File 'lib/lab42/data_class/proxy/constraints.rb', line 8

def check_constraints_against_defaults(constraints)
  errors = constraints
           .map(&_check_constraint_against_default)
           .compact
  raise ConstraintError, errors.join("\n\n") unless errors.empty?
end

#define_constraint ⇒ Object 



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# File 'lib/lab42/data_class/proxy/constraints.rb', line 15

def define_constraint
  ->((attr, constraint)) do
    if members!.member?(attr)
      constraints[attr] << Maker.make_constraint(constraint)
      nil
    else
      attr
    end
  end
end

#define_constraints(constraints) ⇒ Object 



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# File 'lib/lab42/data_class/proxy/constraints.rb', line 26

def define_constraints(constraints)
  errors = constraints.map(&define_constraint).compact
  unless errors.empty?
    raise UndefinedAttributeError,
          "constraints cannot be defined for undefined attributes #{errors.inspect}"
  end

  check_constraints_against_defaults(constraints)
end