1. Grails Update
Peter Ledbrook
Monday, 30 May 2011 1

2. Past year
• Grails 1.3 line
– Plugins in dependency DSL
• More and more plugins
– Spring Security Core et al.
– RabbitMQ
– Gemfire
– Resources, etc.
• noSQL
– Redis, MongoDB, Riak, etc.
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3. New users
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4. Grails 1.4
• Groovy 1.8
• Spring 3.1
• Hibernate 3.6
• Tomcat 7
• Prototype => jQuery
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5. Grails 1.4
• Data storage
• Better testing
• User experience
• A better look
• A truly collaborative effort
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6. Grails 1.4
• Data storage
• Better testing
• User experience
• A better look
• A truly collaborative effort
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7. GORM API
• Plugins should not assume Hibernate!
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8. SQL database migration
Hibernate ‘update’
+
Production data
=
?
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9. SQL database migration
Liquibase
Database Migration
+
Plugin
Autobase
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10. SQL database migration
Pre-production, Hibernate ‘update’ or ‘create-drop’
dbm-generate-changelog
dbm-changelog-sync
Change domain model
dbm-gorm-diff
dbm-update
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11. SQL reverse engineering
install-plugin db-reverse-engineer
class Person {
String name
Integer age
...
}
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12. Other database stuff
• Abstract base domain classes
– These now result in a table
• findOrCreateWhere()
• findOrSaveWhere()
def user = User.findByLogin('admin')
if (!user) {
def user = User.findOrSaveWhere(login: 'admin')
user = new User(login: 'admin')
user.save(failOnError: true)
}
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13. Grails 1.4
• Data storage
• Better testing
• User experience
• A better look
• A truly collaborative effort
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14. Unit testing pre-1.4
• mockDomainClass() had only partial GORM support
– always lagged changes in GORM
• Inheritance-based
– hierarchy duplicated for Spock
– difficult to extend
• Weak support for web-related testing
– controllers
– tag libraries
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15. The mixin approach
class MyControllerUnitTests extends ControllerUnitTestCase {
void setUp() {
mockDomain(Person, [
new Person(...),
new Person(...) ])
}
void testIndex() {
def model = this.controller.index()
...
}
}
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16. The mixin approach
class MyControllerUnitTests {
void setUp() {
mockDomain(Person, [
new Person(...),
new Person(...) ])
}
void testIndex() {
def model = this.controller.index()
...
}
}
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17. The mixin approach
@TestFor(MyController)
@Mock(Person)
class MyControllerUnitTests {
void setUp() {
mockDomain(Person, [
new Person(...),
new Person(...) ])
}
void testIndex() {
def model = this.controller.index()
...
}
}
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18. The mixin approach
@TestFor(MyController)
@Mock(Person)
class MyControllerUnitTests {
void setUp() {
new Person(...).save()
new Person(...).save()
}
void testIndex() {
def model = this.controller.index()
...
}
}
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19. The mixin approach (optional)
@TestFor(MyController)
@Mock(Person)
class MyControllerUnitTests {
@Before
void before() {
new Person(...).save()
new Person(...).save()
}
@Test
void indexAction() {
def model = this.controller.index()
...
}
}
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20. Support for testing...
• Tag libraries
• Command objects
• XML & JSON responses
• File upload
• View and template rendering
• Filters
• URL mappings
• Criteria queries
• and more!
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21. Grails 1.4
• Data storage
• Better testing
• User experience
• A better look
• A truly collaborative effort
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22. New automatic reloading
• Reloading in run-app works with
– Typed service references
– Domain classes
– src/groovy, src/java
• Any command with -agent
• Interactive mode and integration tests?
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23. Plugin portal
+ Plugin usage tracking
+ Grails usage tracking
+ More info about plugins
How many We don’t know plugin?
people use each
Licence
Developers
Issue tracker
SCM
Dependencies (JAR & plugin)
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24. Other stuff
• Snapshot handling fixed
– No need to clear Ivy cache when new snapshot available
• Interactive mode
– Eliminate Permgen errors?
• H2 console
– Out of the box interrogation of database
• Binary plugins
– Plugins as JAR dependencies!
• AST transforms
– Use domain classes from Java!
– Real ‘errors’ and ‘log’ properties!
• Public methods on controllers == actions
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25. Grails 1.4
• Data storage
• Better testing
• User experience
• A better look
• A truly collaborative effort
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26. 26
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27. Grails 1.4
• Data storage
• Better testing
• User experience
• A better look
• A truly collaborative effort
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28. Contributors
Marc Palmer
Resources
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29. Contributors
Rob Fletcher
Scaffolding &
jQuery
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30. Contributors
Stéphane
Maldini
AST Magic
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31. Contributors
Luke Daley
Snapshot deps
& testing
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32. Contributors
Jonathan
Pearlin
Maven
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33. Contributors
Kim Betti
JUnit Test
Reports
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34. Contributors
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35. Other contributions
• 60+ pull requests on grails-core
• 35+ pull requests on grails-docs
• More and more plugins
• GitHub for the win!
– grails-core
– grails-docs
– grails-website
– grails-maven
– and many, many plugins
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36. Grails in the cloud
?
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37. For the future
• A continued focus on
– Reliability
– User experience
– Modularity
– More cloud
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38. Thank you!
Questions?
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