Class: Rails::Paths::Root

Inherits:
Hash show all
Includes:
PathParent
Defined in:
railties/lib/rails/paths.rb

Overview

This object is an extended hash that behaves as root of the Rails::Paths system. It allows you to collect information about how you want to structure your application paths by a Hash like API. It requires you to give a physical path on initialization.

root = Root.new
root.add "app/controllers", :eager_load => true

The command above creates a new root object and add “app/controllers” as a path. This means we can get a Path object back like below:

path = root["app/controllers"]
path.eager_load?               # => true
path.is_a?(Rails::Paths::Path) # => true

The Path object is simply an array and allows you to easily add extra paths:

path.is_a?(Array) # => true
path.inspect      # => ["app/controllers"]

path << "lib/controllers"
path.inspect      # => ["app/controllers", "lib/controllers"]

Notice that when you add a path using #add, the path object created already contains the path with the same path value given to #add. In some situations, you may not want this behavior, so you can give :with as option.

root.add "config/routes", :with => "config/routes.rb"
root["config/routes"].inspect # => ["config/routes.rb"]

The #add method accepts the following options as arguments: eager_load, autoload, autoload_once and glob.

Finally, the Path object also provides a few helpers:

root = Root.new
root.path = "/rails"
root.add "app/controllers"

root["app/controllers"].expanded # => ["/rails/app/controllers"]
root["app/controllers"].existent # => ["/rails/app/controllers"]

Check the Path documentation for more information.

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from PathParent

#method_missing

Methods inherited from Hash

#as_json, #assert_valid_keys, #deep_dup, #deep_merge, #deep_merge!, #diff, #encode_json, #except, #except!, #extract!, #extractable_options?, from_xml, #reverse_merge, #reverse_merge!, #slice, #slice!, #stringify_keys, #stringify_keys!, #symbolize_keys, #symbolize_keys!, #to_param, #to_xml, #with_indifferent_access

Constructor Details

#initialize(path) ⇒ Root

Returns a new instance of Root.



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# File 'railties/lib/rails/paths.rb', line 69

def initialize(path)
  raise if path.is_a?(Array)
  @current = nil
  @path = path
  @root = self
  super()
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Rails::Paths::PathParent

Instance Attribute Details

#path ⇒ Object

Returns the value of attribute path



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# File 'railties/lib/rails/paths.rb', line 67

def path
  @path
end

Instance Method Details

#[]=(path, value) ⇒ Object 



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# File 'railties/lib/rails/paths.rb', line 77

def []=(path, value)
  value = Path.new(self, path, value) unless value.is_a?(Path)
  super(path, value)
end

#add(path, options = {}) ⇒ Object 



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# File 'railties/lib/rails/paths.rb', line 82

def add(path, options={})
  with = options[:with] || path
  self[path] = Path.new(self, path, with, options)
end

#all_paths ⇒ Object 



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# File 'railties/lib/rails/paths.rb', line 87

def all_paths
  values.tap { |v| v.uniq! }
end

#autoload_once ⇒ Object 



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# File 'railties/lib/rails/paths.rb', line 91

def autoload_once
  filter_by(:autoload_once?)
end

#autoload_paths ⇒ Object 



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# File 'railties/lib/rails/paths.rb', line 99

def autoload_paths
  filter_by(:autoload?)
end

#eager_load ⇒ Object 



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# File 'railties/lib/rails/paths.rb', line 95

def eager_load
  filter_by(:eager_load?)
end

#load_paths ⇒ Object 



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# File 'railties/lib/rails/paths.rb', line 103

def load_paths
  filter_by(:load_path?)
end