Railsドキュメント(v6.0.2.1)

$ rake -T

$ rake -T
rake about                              # List versions of all Rails frameworks and the environment
rake assets:clean[keep]                 # Remove old compiled assets
rake assets:clobber                     # Remove compiled assets
rake assets:environment                 # Load asset compile environment
rake assets:precompile                  # Compile all the assets named in config.assets.precompile
rake cache_digests:dependencies         # Lookup first-level dependencies for TEMPLATE (like messages/show or comments/_comment.html)
rake cache_digests:nested_dependencies  # Lookup nested dependencies for TEMPLATE (like messages/show or comments/_comment.html)
rake db:create                          # Creates the database from DATABASE_URL or config/database.yml for the current RAILS_ENV (use db:create:all to create all databases in the config)
rake db:drop                            # Drops the database from DATABASE_URL or config/database.yml for the current RAILS_ENV (use db:drop:all to drop all databases in the config)
rake db:fixtures:load                   # Load fixtures into the current environment's database
rake db:migrate                         # Migrate the database (options: VERSION=x, VERBOSE=false, SCOPE=blog)
rake db:migrate:status                  # Display status of migrations
rake db:rollback                        # Rolls the schema back to the previous version (specify steps w/ STEP=n)
rake db:schema:cache:clear              # Clear a db/schema_cache.dump file
rake db:schema:cache:dump               # Create a db/schema_cache.dump file
rake db:schema:dump                     # Create a db/schema.rb file that is portable against any DB supported by AR
rake db:schema:load                     # Load a schema.rb file into the database
rake db:seed                            # Load the seed data from db/seeds.rb
rake db:setup                           # Create the database, load the schema, and initialize with the seed data (use db:reset to also drop the database first)
rake db:structure:dump                  # Dump the database structure to db/structure.sql
rake db:structure:load                  # Recreate the databases from the structure.sql file
rake db:version                         # Retrieves the current schema version number
rake doc:app                            # Generate docs for the app -- also available doc:rails, doc:guides (options: TEMPLATE=/rdoc-template.rb, TITLE="Custom Title")
rake log:clear                          # Truncates all *.log files in log/ to zero bytes (specify which logs with LOGS=test,development)
rake middleware                         # Prints out your Rack middleware stack
rake notes                              # Enumerate all annotations (use notes:optimize, :fixme, :todo for focus)
rake notes:custom                       # Enumerate a custom annotation, specify with ANNOTATION=CUSTOM
rake rails:template                     # Applies the template supplied by LOCATION=(/path/to/template) or URL
rake rails:update                       # Update configs and some other initially generated files (or use just update:configs or update:bin)
rake routes                             # Print out all defined routes in match order, with names
rake secret                             # Generate a cryptographically secure secret key (this is typically used to generate a secret for cookie sessions)
rake stats                              # Report code statistics (KLOCs, etc) from the application or engine
rake test                               # Runs all tests in test folder
rake test:all                           # Run tests quickly by merging all types and not resetting db
rake test:all:db                        # Run tests quickly, but also reset db
rake test:db                            # Run tests quickly, but also reset db
rake time:zones:all                     # Displays all time zones, also available: time:zones:us, time:zones:local -- filter with OFFSET parameter, e.g., OFFSET=-6
rake tmp:clear                          # Clear session, cache, and socket files from tmp/ (narrow w/ tmp:sessions:clear, tmp:cache:clear, tmp:sockets:clear)
rake tmp:create                         # Creates tmp directories for sessions, cache, sockets, and pids

$ rake about

$ rake doc.rails

$ rake doc.rails

$ rake doc:app

$ rake doc:app
rm -r doc/app
Parsing sources...
100% [ 3/ 3]  app/helpers/application_helper.rb

Generating Darkfish format into /xxx/rails/xxx/doc/app...

Files:      3

Classes:    1 (1 undocumented)
Modules:    1 (1 undocumented)
Constants:  0 (0 undocumented)
Attributes: 0 (0 undocumented)
Methods:    0 (0 undocumented)

Total:      2 (2 undocumented)
  0.00% documented

Elapsed: 0.3s

$ rake notes

def test
# TODO: やり残し
end

$ rake notes
  * [  3] [TODO] やり残し

$ rake db:drop [RAILS_ENV=環境(development, text, production)]

$ rake db:drop:all

$ rake db:drop

$ rake db:drop RAILS_ENV=production

$ rake db:migrate [VERSION=バージョン番号 オプション]

$ rake db:migrate

$ rake db:migrate RAILS_ENV=production

$ rake db:migrate RAILS_ENV=test

$ rake db:migrate VERSION=201010190000

$ rake db:migrate:reset

$ rake db:migrate:redo STEP=1

$ rake db:migrate:up VERSION=201010190000

$ rake db:version

$ rake db:version [RAILS_ENV=環境(development, text, production)]

$ rake db:version
Current version: 20110716180121

$ rake db:migrate:status [RAILS_ENV=環境(development, text, production)]

$ rake db:migrate:status

 Status   Migration ID    Migration Name
--
   up     20110521181506  Create pages
   up     20110521182915  Create categories
   up     20110703120321  Add position to pages
   up     20110716180121  Add position to categories
  down  20110724110158  Add english name to category

$ rake db:schema:load [RAILS_ENV=環境(development, text, production)]

$ rake db:schema:load

$ rake db:schema:dump [RAILS_ENV=環境(development, text, production)]

$ rake db:schema:dump

$ rake db:seed

# db/seeds.rb
Category.create(name: "Railsの基礎知識", position: 1)
Category.create(name: "Rubyの基礎知識", position: 2)

# db/seeds.rb
5.times do |i|
     Page.create(name: "テスト #{i}", category_id: 1)
end

$ rake db:fixtures:load [FIXTURES=フィクスチャファイル名 RAILS_ENV=環境]

$ rake db:fixtures:load

$ rake db:create [RAILS_ENV=環境(development, text, production)]

$ rake db:create:all

$ rake db:create

$ rake log:clear

$ rake log:clear

$ rake rails:update

$ rake rails:update

$ rake rails:templates:copy

$ rake rails:templates:copy

$ rake db:rollback

$ rake db:rollback

$ rake db:rollback STEP=3