Module: ActiveRecord::TestFixtures::ClassMethods

Defined in:
activerecord/lib/active_record/fixtures.rb

Instance Method Summary collapse

Instance Method Details

#fixtures(*fixture_names) ⇒ Object

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# File 'activerecord/lib/active_record/fixtures.rb', line 753

def fixtures(*fixture_names)
  if fixture_names.first == :all
    fixture_names = Dir["#{fixture_path}/**/*.{yml}"]
    fixture_names.map! { |f| f[(fixture_path.size + 1)..-5] }
  else
    fixture_names = fixture_names.flatten.map { |n| n.to_s }
  end

  self.fixture_table_names |= fixture_names
  require_fixture_classes(fixture_names)
  setup_fixture_accessors(fixture_names)
end

#require_fixture_classes(fixture_names = nil) ⇒ Object

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# File 'activerecord/lib/active_record/fixtures.rb', line 778

def require_fixture_classes(fixture_names = nil)
  (fixture_names || fixture_table_names).each do |fixture_name|
    file_name = fixture_name.to_s
    file_name = file_name.singularize if ActiveRecord::Base.pluralize_table_names
    try_to_load_dependency(file_name)
  end
end

#set_fixture_class(class_names = {}) ⇒ Object

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# File 'activerecord/lib/active_record/fixtures.rb', line 749

def set_fixture_class(class_names = {})
  self.fixture_class_names = self.fixture_class_names.merge(class_names)
end

#setup_fixture_accessors(fixture_names = nil) ⇒ Object

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# File 'activerecord/lib/active_record/fixtures.rb', line 786

def setup_fixture_accessors(fixture_names = nil)
  fixture_names = Array.wrap(fixture_names || fixture_table_names)
  methods = Module.new do
    fixture_names.each do |fixture_name|
      fixture_name = fixture_name.to_s.tr('./', '_')

      define_method(fixture_name) do |*fixtures|
        force_reload = fixtures.pop if fixtures.last == true || fixtures.last == :reload

        @fixture_cache[fixture_name] ||= {}

        instances = fixtures.map do |fixture|
          @fixture_cache[fixture_name].delete(fixture) if force_reload

          if @loaded_fixtures[fixture_name][fixture.to_s]
            ActiveRecord::IdentityMap.without do
              @fixture_cache[fixture_name][fixture] ||= @loaded_fixtures[fixture_name][fixture.to_s].find
            end
          else
            raise StandardError, "No fixture with name '#{fixture}' found for table '#{fixture_name}'"
          end
        end

        instances.size == 1 ? instances.first : instances
      end
      private fixture_name
    end
  end
  include methods
end

#try_to_load_dependency(file_name) ⇒ Object

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# File 'activerecord/lib/active_record/fixtures.rb', line 766

def try_to_load_dependency(file_name)
  require_dependency file_name
rescue LoadError => e
  # Let's hope the developer has included it himself

  # Let's warn in case this is a subdependency, otherwise
  # subdependency error messages are totally cryptic
  if ActiveRecord::Base.logger
    ActiveRecord::Base.logger.warn("Unable to load #{file_name}, underlying cause #{e.message} \n\n #{e.backtrace.join("\n")}")
  end
end

#uses_transaction(*methods) ⇒ Object

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# File 'activerecord/lib/active_record/fixtures.rb', line 817

def uses_transaction(*methods)
  @uses_transaction = [] unless defined?(@uses_transaction)
  @uses_transaction.concat methods.map { |m| m.to_s }
end

#uses_transaction?(method) ⇒ Boolean

Returns:

  • (Boolean)
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# File 'activerecord/lib/active_record/fixtures.rb', line 822

def uses_transaction?(method)
  @uses_transaction = [] unless defined?(@uses_transaction)
  @uses_transaction.include?(method.to_s)
end