Generate

Last updated 9 months ago
The generators in amber are a great way to get an application up and running quickly. In addition, they help keep code consistent and following convention.
Example Usage
You can always see the available generators by running amber generate as below:
$ amber generate
Parsing Error: The TYPE argument is required.
​
amber generate [OPTIONS] TYPE NAME [FIELDS1 FIELDS2...]
​
Arguments:
  FIELDS (multiple)  user:reference name:string body:text age:integer published:bool
  NAME               name of resource
  TYPE               scaffold, model, controller, migration, mailer, socket, channel, auth
​
Options:
  --no-color  Disable colored output
Generators can be used multi-word names, the class names will be CamelCase and file names will be snake_case, the command line input can be either:
$ amber generate [TYPE] MultiWordName [FIELD1 FIELD2 ...]
# OR
$ amber generate [TYPE] multi_word_name [FIELD1 FIELD2 ...]
See Scaffolding below for full example.
Examples of Usage
​Scaffolding​
​Auth​
​Model​
​Controller​
Scaffolding
Scaffolding will create the model (and specs), views, controller (and specs) and migrations for a resource. Additionally, it will add the new resource to the nav bar and
$ amber generate scaffold Post title body:text
Rendering Scaffold post
new       db/migrations/20171114103058417_create_post.sql
new       spec/models/spec_helper.cr
new       spec/models/post_spec.cr
new       src/models/post.cr
new       spec/controllers/spec_helper.cr
new       spec/controllers/post_controller_spec.cr
new       src/controllers/post_controller.cr
rewritten src/views/layouts/_nav.slang
new       src/views/post/_form.slang
new       src/views/post/edit.slang
new       src/views/post/index.slang
new       src/views/post/new.slang
new       src/views/post/show.slang
If you scaffold a multi-word resource, the class names will be CamelCase and file names will be snake_case, the command line input can be either:
$ amber generate scaffold PostComment post:reference body:text
# OR
$ amber generate scaffold post_comment post:reference body:text
Rendering Scaffold post_comment
new       db/migrations/20171114103306763_create_post_comment.sql
skipped   spec/models/spec_helper.cr
new       spec/models/post_comment_spec.cr
new       src/models/post_comment.cr
skipped   spec/controllers/spec_helper.cr
new       spec/controllers/post_comment_controller_spec.cr
new       src/controllers/post_comment_controller.cr
rewritten src/views/layouts/_nav.slang
new       src/views/post_comment/_form.slang
new       src/views/post_comment/edit.slang
new       src/views/post_comment/index.slang
new       src/views/post_comment/new.slang
new       src/views/post_comment/show.slang
Auth
$ amber g auth User
Rendering Auth user
new       db/migrations/20171019214851_create_user.sql
new       db/seeds.cr
new       spec/controllers/spec_helper.cr
new       spec/models/spec_helper.cr
new       spec/models/user_spec.cr
new       src/controllers/registration_controller.cr
new       src/controllers/session_controller.cr
new       src/handlers/authenticate.cr
new       src/models/user.cr
rewritten src/views/layouts/_nav.slang
new       src/views/registration/new.slang
new       src/views/session/new.slang
Model
$ amber g model Person name:string age:integer
Rendering Model person
new       db/migrations/20171019214940_create_person.sql
skipped   spec/models/spec_helper.cr
new       spec/models/person_spec.cr
new       src/models/person.cr
Controller
$ amber g controller Person index:get show:get create:post update:patch
Rendering Controller person
skipped   spec/controllers/spec_helper.cr
new       spec/controllers/person_controller_spec.cr
new       src/controllers/person_controller.cr
Recipes
Recipes are available to generate Scaffolding, Controller and Model artifacts in ways that vary from the standard built in generator. See the Recipes option of the Command Line Tool for more information about using recipes to generate applications.
Recipes
Database