Class: ROM::Schema::Inferrer Private

Inherits:
Object
  • Object
show all
Extended by:
Dry::Core::ClassAttributes, Initializer
Defined in:
lib/rom/schema/inferrer.rb

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Constant Summary collapse

MissingAttributesError =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

Class.new(StandardError) do
  def initialize(name, attributes)
    super(
      "Following attributes in #{Relation::Name[name].relation.inspect} schema cannot "\
      "be inferred and have to be defined explicitly: #{attributes.map(&:inspect).join(', ')}"
    )
  end
end
DEFAULT_ATTRIBUTES =

This constant is part of a private API. You should avoid using this constant if possible, as it may be removed or be changed in the future. 

[EMPTY_ARRAY, EMPTY_ARRAY].freeze

Instance Method Summary collapse

Methods included from Initializer

extended

Instance Method Details

#call(schema, gateway) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/rom/schema/inferrer.rb', line 38

def call(schema, gateway)
  if enabled?
    inferred, missing = attributes_inferrer.(schema, gateway, options)
  else
    inferred, missing = DEFAULT_ATTRIBUTES
  end

  attributes = merge_attributes(schema.attributes, inferred)

  check_all_attributes_defined(schema, attributes, missing)

  { attributes: attributes }
end

#check_all_attributes_defined(schema, all_known, not_inferred) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/rom/schema/inferrer.rb', line 53

def check_all_attributes_defined(schema, all_known, not_inferred)
  not_defined = not_inferred - all_known.map(&:name)

  if not_defined.size > 0
    raise MissingAttributesError.new(schema.name, not_defined)
  end
end

#merge_attributes(defined, inferred) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/rom/schema/inferrer.rb', line 62

def merge_attributes(defined, inferred)
  defined_names = defined.map(&:name)

  defined + inferred.reject { |attr| defined_names.include?(attr.name) }
end