Grails - Getting Started

Scaffolding

Create e.g. bookapp:
```
grails create-app
cd bookapp
```
Note: Database settings can be found here, Grails - Database.
Run
```
grails run-app
```
Test

Browse to http://localhost:8080/bookapp
Create a domain object e.g. Book (a domain class is a persistent artifact and all properties are by default persisted to the database):
```
grails create-domain-class
```

Edit the domain object:

grails-app/domain/Book.groovy

class Book {
    String title
    String author
}

Test Data

You can create some test data, by editing BootStrap.groovy:

grails-app\conf\BootStrap.groovy

class BootStrap {

     def init = { servletContext ->
        // Create some test data
        new Book(author:"Stephen King",title:"The Shining").save()
        new Book(author:"James Patterson",title:"Along Came a Spider").save()
     }
     def destroy = {
     }
}

Create a controller e.g. Book.
```
grails create-controller
```
Controllers are central to Grails applications they handle web requests and URLs of the request map to a controller class and a closure within the class.
Edit the controller:
```
grails-app\controllers\BookController.groovy
```
```
class BookController {
    def scaffold = Book
}

Note:
```
- Make sure that you typed Book with a capital B.
- You will need to remove or comment out the def index = { } from the generated file for the scaffolding to work.
- Alternatively, you could also have run grails generate-all, which creates all the scaffolding for you, and left the generated controller alone, instead of replacing it with the default scaffolding (http://www.grails.org/Quick+Start).
Run
```
grails run-app
```
Note:

To run with the production database environment (see grails-app/conf/DataSource.groovy):
```
grails prod run-app
```
Test

Browse to http://localhost:8080/bookapp/book/list