diff options
Diffstat (limited to 'railties')
| -rwxr-xr-x | railties/Rakefile | 9 | ||||
| -rw-r--r-- | railties/guides/source/active_record_querying.textile | 75 | ||||
| -rw-r--r-- | railties/lib/rails/application/route_inspector.rb | 42 | ||||
| -rw-r--r-- | railties/lib/rails/tasks/routes.rake | 34 | ||||
| -rw-r--r-- | railties/test/application/rake_test.rb | 97 | ||||
| -rw-r--r-- | railties/test/application/route_inspect_test.rb | 97 | ||||
| -rw-r--r-- | railties/test/railties/mounted_engine_test.rb | 5 |
7 files changed, 219 insertions, 140 deletions
diff --git a/railties/Rakefile b/railties/Rakefile index be9a77d4e4..25e515e016 100755 --- a/railties/Rakefile +++ b/railties/Rakefile @@ -17,8 +17,13 @@ namespace :test do dir = ENV["TEST_DIR"] || "**" Dir["test/#{dir}/*_test.rb"].each do |file| next true if file.include?("fixtures") - ruby = File.join(*RbConfig::CONFIG.values_at('bindir', 'RUBY_INSTALL_NAME')) - sh(ruby, '-Itest', "-I#{File.dirname(__FILE__)}/../activesupport/lib", file) + dash_i = [ + 'test', + 'lib', + "#{File.dirname(__FILE__)}/../activesupport/lib", + "#{File.dirname(__FILE__)}/../actionpack/lib" + ] + ruby "-I#{dash_i.join ':'}", file end end end diff --git a/railties/guides/source/active_record_querying.textile b/railties/guides/source/active_record_querying.textile index 95a7bfebc3..7a853db813 100644 --- a/railties/guides/source/active_record_querying.textile +++ b/railties/guides/source/active_record_querying.textile @@ -1018,23 +1018,84 @@ If you want to find both by name and locked, you can chain these finders togethe WARNING: Up to and including Rails 3.1, when the number of arguments passed to a dynamic finder method is lesser than the number of fields, say <tt>Client.find_by_name_and_locked("Ryan")</tt>, the behavior is to pass +nil+ as the missing argument. This is *unintentional* and this behavior will be changed in Rails 3.2 to throw an +ArgumentError+. -There's another set of dynamic finders that let you find or create/initialize objects if they aren't found. These work in a similar fashion to the other finders and can be used like +find_or_create_by_first_name(params[:first_name])+. Using this will first perform a find and then create if the find returns +nil+. The SQL looks like this for +Client.find_or_create_by_first_name("Ryan")+: +h3. Find or build a new object + +It's common that you need to find a record or create it if it doesn't exist. You can do that with the +first_or_create+ and +first_or_create!+ methods. + +h4. +first_or_create+ + +The +first_or_create+ method checks whether +first+ returns +nil+ or not. If it does return +nil+, then +create+ is called. This is very powerful when coupled with the +where+ method. Let's see an example. + +Suppose you want to find a client named 'Andy', and if there's none, create one and additionally set his +locked+ attribute to false. You can do so by running: + +<ruby> +Client.where(:first_name => 'Andy').first_or_create(:locked => false) +# => <Client id: 1, first_name: "Andy", orders_count: 0, locked: false, created_at: "2011-08-30 06:09:27", updated_at: "2011-08-30 06:09:27"> +</ruby> + +The SQL generated by this method looks like this: <sql> -SELECT * FROM clients WHERE (clients.first_name = 'Ryan') LIMIT 1 +SELECT * FROM clients WHERE (clients.first_name = 'Andy') LIMIT 1 BEGIN -INSERT INTO clients (first_name, updated_at, created_at, orders_count, locked) - VALUES('Ryan', '2008-09-28 15:39:12', '2008-09-28 15:39:12', 0, '0') +INSERT INTO clients (created_at, first_name, locked, orders_count, updated_at) VALUES ('2011-08-30 05:22:57', 'Andy', 0, NULL, '2011-08-30 05:22:57') COMMIT </sql> -+find_or_create+'s sibling, +find_or_initialize+, will find an object and if it does not exist will act similarly to calling +new+ with the arguments you passed in. For example: ++first_or_create+ returns either the record that already existed or the new record. In our case, we didn't already have a client named Andy so the record was created an returned. + +The new record might not be saved to the database; that depends on whether validations passed or not (just like +create+). + +It's also worth noting that +first_or_create+ takes into account the arguments of the +where+ method. In the example above we didn't explicitly pass a +:first_name => 'Andy'+ argument to +first_or_create+. However, that was used when creating the new record because it was already passed before to the +where+ method. + +NOTE: On previous versions of Rails you could do a similar thing with the +find_or_create_by+ method. Following our example, you could also run something like +Client.find_or_create_by_first_name(:first_name => "Andy", :locked => false)+. This method still works, but it's encouraged to use +first_or_create+ because it's more explicit on what arguments are used to _find_ the record and what arguments are used to _create_ it, resulting in less confusion overall. + +h4. +first_or_create!+ + +You can also use +first_or_create!+ to raise an exception if the new record is invalid. Validations are not covered on this guide, but let's assume for a moment that you temporarily add + +<ruby> + validates :orders_count, :presence => true +</ruby> + +to your +Client+ model. If you try to create a new +Client+ without passing an +orders_count+, the record will be invalid and an exception will be raised: + +<ruby> +Client.where(:first_name => 'Andy').first_or_create!(:locked => false) +# => ActiveRecord::RecordInvalid: Validation failed: Orders count can't be blank +</ruby> + +NOTE: Be sure to check the extensive *Active Record Validations and Callbacks Guide* for more information about validations. + +h4. +first_or_new+ + +The +first_or_new+ method will work just like +first_or_create+ but it will not call +create+ but +new+. This means that a new model instance will be created in memory but won't be saved to the database. Continuing with the +first_or_create+ example, we now want the client named 'Nick': + +<ruby> +nick = Client.where(:first_name => 'Nick').first_or_new(:locked => false) +# => <Client id: nil, first_name: "Nick", orders_count: 0, locked: false, created_at: "2011-08-30 06:09:27", updated_at: "2011-08-30 06:09:27"> + +nick.persisted? +# => false + +nick.new_record? +# => true +</ruby> + +Because the object is not yet stored in the database, the SQL generated looks like this: + +<sql> +SELECT * FROM clients WHERE (clients.first_name = 'Nick') LIMIT 1 +</sql> + +When you want to save it to the database, just call +save+: <ruby> -client = Client.find_or_initialize_by_first_name('Ryan') +nick.save +# => true </ruby> -will either assign an existing client object with the name "Ryan" to the client local variable, or initialize a new object similar to calling +Client.new(:first_name => 'Ryan')+. From here, you can modify other fields in client by calling the attribute setters on it: +client.locked = true+ and when you want to write it to the database just call +save+ on it. +Just like you can use *+build+* instead of *+new+*, you can use *+first_or_build+* instead of *+first_or_new+*. h3. Finding by SQL diff --git a/railties/lib/rails/application/route_inspector.rb b/railties/lib/rails/application/route_inspector.rb new file mode 100644 index 0000000000..15c6d035e5 --- /dev/null +++ b/railties/lib/rails/application/route_inspector.rb @@ -0,0 +1,42 @@ +module Rails + class Application + ## + # This class is just used for displaying route information when someone + # executes `rake routes`. People should not use this class. + class RouteInspector # :nodoc: + def format all_routes, filter = nil + if filter + all_routes = all_routes.select{ |route| route.defaults[:controller] == filter } + end + + routes = all_routes.collect do |route| + + reqs = route.requirements.dup + rack_app = route.app unless route.app.class.name.to_s =~ /^ActionDispatch::Routing/ + + endpoint = rack_app ? rack_app.inspect : "#{reqs[:controller]}##{reqs[:action]}" + constraints = reqs.except(:controller, :action) + + reqs = endpoint == '#' ? '' : endpoint + + unless constraints.empty? + reqs = reqs.empty? ? constraints.inspect : "#{reqs} #{constraints.inspect}" + end + + {:name => route.name.to_s, :verb => route.verb.to_s, :path => route.path, :reqs => reqs} + end + + # Skip the route if it's internal info route + routes.reject! { |r| r[:path] =~ %r{/rails/info/properties|^/assets} } + + name_width = routes.map{ |r| r[:name].length }.max + verb_width = routes.map{ |r| r[:verb].length }.max + path_width = routes.map{ |r| r[:path].length }.max + + routes.map do |r| + "#{r[:name].rjust(name_width)} #{r[:verb].ljust(verb_width)} #{r[:path].ljust(path_width)} #{r[:reqs]}" + end + end + end + end +end diff --git a/railties/lib/rails/tasks/routes.rake b/railties/lib/rails/tasks/routes.rake index 0c26bcf790..7dc54144da 100644 --- a/railties/lib/rails/tasks/routes.rake +++ b/railties/lib/rails/tasks/routes.rake @@ -3,35 +3,7 @@ task :routes => :environment do Rails.application.reload_routes! all_routes = Rails.application.routes.routes - if ENV['CONTROLLER'] - all_routes = all_routes.select{ |route| route.defaults[:controller] == ENV['CONTROLLER'] } - end - - routes = all_routes.collect do |route| - - reqs = route.requirements.dup - rack_app = route.app unless route.app.class.name.to_s =~ /^ActionDispatch::Routing/ - - endpoint = rack_app ? rack_app.inspect : "#{reqs[:controller]}##{reqs[:action]}" - constraints = reqs.except(:controller, :action) - - reqs = endpoint == '#' ? '' : endpoint - - unless constraints.empty? - reqs = reqs.empty? ? constraints.inspect : "#{reqs} #{constraints.inspect}" - end - - {:name => route.name.to_s, :verb => route.verb.to_s, :path => route.path, :reqs => reqs} - end - - # Skip the route if it's internal info route - routes.reject! { |r| r[:path] =~ %r{/rails/info/properties|^/assets} } - - name_width = routes.map{ |r| r[:name].length }.max - verb_width = routes.map{ |r| r[:verb].length }.max - path_width = routes.map{ |r| r[:path].length }.max - - routes.each do |r| - puts "#{r[:name].rjust(name_width)} #{r[:verb].ljust(verb_width)} #{r[:path].ljust(path_width)} #{r[:reqs]}" - end + require 'rails/application/route_inspector' + inspector = Rails::Application::RouteInspector.new + puts inspector.format(all_routes, ENV['CONTROLLER']).join "\n" end diff --git a/railties/test/application/rake_test.rb b/railties/test/application/rake_test.rb index 0e03c3dc2d..3e0e3713aa 100644 --- a/railties/test/application/rake_test.rb +++ b/railties/test/application/rake_test.rb @@ -85,7 +85,7 @@ module ApplicationTests end end - def test_rake_routes_output_strips_anchors_from_http_verbs + def test_rake_routes_calls_the_route_inspector app_file "config/routes.rb", <<-RUBY AppTemplate::Application.routes.draw do get '/cart', :to => 'cart#show' @@ -94,99 +94,6 @@ module ApplicationTests assert_equal "cart GET /cart(.:format) cart#show\n", Dir.chdir(app_path){ `rake routes` } end - def test_rake_routes_shows_custom_assets - app_file "config/routes.rb", <<-RUBY - AppTemplate::Application.routes.draw do - get '/custom/assets', :to => 'custom_assets#show' - end - RUBY - assert_equal "custom_assets GET /custom/assets(.:format) custom_assets#show\n", - Dir.chdir(app_path){ `rake routes` } - end - - def test_rake_routes_shows_resources_route - app_file "config/routes.rb", <<-RUBY - AppTemplate::Application.routes.draw do - resources :articles - end - RUBY - expected = - " articles GET /articles(.:format) articles#index\n" << - " POST /articles(.:format) articles#create\n" << - " new_article GET /articles/new(.:format) articles#new\n" << - "edit_article GET /articles/:id/edit(.:format) articles#edit\n" << - " article GET /articles/:id(.:format) articles#show\n" << - " PUT /articles/:id(.:format) articles#update\n" << - " DELETE /articles/:id(.:format) articles#destroy\n" - assert_equal expected, Dir.chdir(app_path){ `rake routes` } - end - - def test_rake_routes_shows_root_route - app_file "config/routes.rb", <<-RUBY - AppTemplate::Application.routes.draw do - root :to => 'pages#main' - end - RUBY - assert_equal "root / pages#main\n", Dir.chdir(app_path){ `rake routes` } - end - - def test_rake_routes_shows_controller_and_action_only_route - app_file "config/routes.rb", <<-RUBY - AppTemplate::Application.routes.draw do - match ':controller/:action' - end - RUBY - assert_equal " /:controller/:action(.:format) \n", Dir.chdir(app_path){ `rake routes` } - end - - def test_rake_routes_shows_controller_and_action_route_with_constraints - app_file "config/routes.rb", <<-RUBY - AppTemplate::Application.routes.draw do - match ':controller(/:action(/:id))', :id => /\\d+/ - end - RUBY - assert_equal " /:controller(/:action(/:id))(.:format) {:id=>/\\d+/}\n", Dir.chdir(app_path){ `rake routes` } - end - - def test_rake_routes_shows_route_with_defaults - app_file "config/routes.rb", <<-RUBY - AppTemplate::Application.routes.draw do - match 'photos/:id' => 'photos#show', :defaults => {:format => 'jpg'} - end - RUBY - assert_equal %Q[ /photos/:id(.:format) photos#show {:format=>"jpg"}\n], Dir.chdir(app_path){ `rake routes` } - end - - def test_rake_routes_shows_route_with_constraints - app_file "config/routes.rb", <<-RUBY - AppTemplate::Application.routes.draw do - match 'photos/:id' => 'photos#show', :id => /[A-Z]\\d{5}/ - end - RUBY - assert_equal " /photos/:id(.:format) photos#show {:id=>/[A-Z]\\d{5}/}\n", Dir.chdir(app_path){ `rake routes` } - end - - def test_rake_routes_shows_route_with_rack_app - app_file "lib/rack_app.rb", <<-RUBY - class RackApp - class << self - def call(env) - end - end - end - RUBY - - app_file "config/routes.rb", <<-RUBY - require 'rack_app' - - AppTemplate::Application.routes.draw do - match 'foo/:id' => RackApp, :id => /[A-Z]\\d{5}/ - end - RUBY - - assert_equal " /foo/:id(.:format) RackApp {:id=>/[A-Z]\\d{5}/}\n", Dir.chdir(app_path){ `rake routes` } - end - def test_logger_is_flushed_when_exiting_production_rake_tasks add_to_config <<-RUBY rake_tasks do @@ -245,4 +152,4 @@ module ApplicationTests assert_match(/7 tests, 10 assertions, 0 failures, 0 errors/, content) end end -end
\ No newline at end of file +end diff --git a/railties/test/application/route_inspect_test.rb b/railties/test/application/route_inspect_test.rb new file mode 100644 index 0000000000..add8256b5d --- /dev/null +++ b/railties/test/application/route_inspect_test.rb @@ -0,0 +1,97 @@ +require 'test/unit' +require 'rails/application/route_inspector' +require 'action_controller' + +module ApplicationTests + class RouteInspectTest < Test::Unit::TestCase + def setup + @set = ActionDispatch::Routing::RouteSet.new + @inspector = Rails::Application::RouteInspector.new + end + + def test_cart_inspect + @set.draw do + get '/cart', :to => 'cart#show' + end + output = @inspector.format @set.routes + assert_equal ["cart GET /cart(.:format) cart#show"], output + end + + def test_inspect_shows_custom_assets + @set.draw do + get '/custom/assets', :to => 'custom_assets#show' + end + output = @inspector.format @set.routes + assert_equal ["custom_assets GET /custom/assets(.:format) custom_assets#show"], output + end + + def test_inspect_routes_shows_resources_route + @set.draw do + resources :articles + end + output = @inspector.format @set.routes + expected = [ + " articles GET /articles(.:format) articles#index", + " POST /articles(.:format) articles#create", + " new_article GET /articles/new(.:format) articles#new", + "edit_article GET /articles/:id/edit(.:format) articles#edit", + " article GET /articles/:id(.:format) articles#show", + " PUT /articles/:id(.:format) articles#update", + " DELETE /articles/:id(.:format) articles#destroy" ] + assert_equal expected, output + end + + def test_inspect_routes_shows_root_route + @set.draw do + root :to => 'pages#main' + end + output = @inspector.format @set.routes + assert_equal ["root / pages#main"], output + end + + def test_inspect_routes_shows_controller_and_action_only_route + @set.draw do + match ':controller/:action' + end + output = @inspector.format @set.routes + assert_equal [" /:controller/:action(.:format) "], output + end + + def test_inspect_routes_shows_controller_and_action_route_with_constraints + @set.draw do + match ':controller(/:action(/:id))', :id => /\d+/ + end + output = @inspector.format @set.routes + assert_equal [" /:controller(/:action(/:id))(.:format) {:id=>/\\d+/}"], output + end + + def test_rake_routes_shows_route_with_defaults + @set.draw do + match 'photos/:id' => 'photos#show', :defaults => {:format => 'jpg'} + end + output = @inspector.format @set.routes + assert_equal [%Q[ /photos/:id(.:format) photos#show {:format=>"jpg"}]], output + end + + def test_rake_routes_shows_route_with_constraints + @set.draw do + match 'photos/:id' => 'photos#show', :id => /[A-Z]\d{5}/ + end + output = @inspector.format @set.routes + assert_equal [" /photos/:id(.:format) photos#show {:id=>/[A-Z]\\d{5}/}"], output + end + + class RackApp + def self.call(env) + end + end + + def test_rake_routes_shows_route_with_rack_app + @set.draw do + match 'foo/:id' => RackApp, :id => /[A-Z]\d{5}/ + end + output = @inspector.format @set.routes + assert_equal [" /foo/:id(.:format) #{RackApp.name} {:id=>/[A-Z]\\d{5}/}"], output + end + end +end diff --git a/railties/test/railties/mounted_engine_test.rb b/railties/test/railties/mounted_engine_test.rb index 253e61259b..0491fc2174 100644 --- a/railties/test/railties/mounted_engine_test.rb +++ b/railties/test/railties/mounted_engine_test.rb @@ -235,10 +235,5 @@ module ApplicationTests get "/weblog_engine_route_in_view" assert_equal "/weblog", last_response.body end - - test "request url for controller action when engine is mounted at root" do - get "/weblog" - assert_equal "http://example.org/weblog", last_response.body - end end end |