method

find_by_namespace

rails latest stable - Class: Rails::Generators

find_by_namespace(name, base = nil, context = nil)

public

Rails finds namespaces similar to Thor, it only adds one rule:

Generators names must end with “_generator.rb”. This is required because Rails looks in load paths and loads the generator just before it’s going to be used.

find_by_namespace :webrat, :rails, :integration

Will search for the following generators:

"rails:webrat", "webrat:integration", "webrat"

Notice that “rails:generators:webrat” could be loaded as well, what Rails looks for is the first and last parts of the namespace.

# File railties/lib/rails/generators.rb, line 230
      def find_by_namespace(name, base = nil, context = nil) # :nodoc:
        lookups = []
        lookups << "#{base}:#{name}"    if base
        lookups << "#{name}:#{context}" if context

        unless base || context
          unless name.to_s.include?(::)
            lookups << "#{name}:#{name}"
            lookups << "rails:#{name}"
          end
          lookups << "#{name}"
        end

        lookup(lookups)

        namespaces = subclasses.index_by(&:namespace)
        lookups.each do |namespace|
          klass = namespaces[namespace]
          return klass if klass
        end

        invoke_fallbacks_for(name, base) || invoke_fallbacks_for(context, name)
      end

find_by_namespace

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