G* on GAE/J 挑戦編
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This document provides instructions for creating a Grails application to manage event data using a Google App Engine backend datastore. It demonstrates creating Event domain classes and controllers, installing plugins for calendar integration and CSS styling, configuring the App Engine plugin and datastore indexes, deploying the application to App Engine, and performing basic CRUD operations on Event data in the datastore.
![class Event implements Serializable {
static mapping = {
id generator:'uuid.hex',
params:[type:'string']
}
String id
...
static constraints = {
eventName nullable:false,blank:false
eventDate nullable:false,blank:false
eventDesc nullable:false,blank:false
place nullable:false,blank:false
groupName nullable:false,blank:false
content nullable:false,
blank:false,maxSize:4000
dateCreated display:false
lastUpdated display:false
}](https://image.slidesharecdn.com/grongaej-090822090043-phpapp02/85/G-on-GAE-J-16-320.jpg)
![def save = {
def eventInstance = new Event(params)
Event.withTransaction{
if(eventInstance.save(flush:true)) {
flash.message = "Event ${eventInstance.id} created"
redirect action:"show", id:eventInstance.id
}
else {
render view:'create', model:[eventInstance:eventInstance]
}
}
}](https://image.slidesharecdn.com/grongaej-090822090043-phpapp02/85/G-on-GAE-J-46-320.jpg)
![View
request.setAttribute 'list', [1, 2, 3, 4]
request.setAttribute 'date', new Date()
forward 'display.gtpl'](https://image.slidesharecdn.com/grongaej-090822090043-phpapp02/85/G-on-GAE-J-70-320.jpg)
![import com.google.appengine.api.datastore.Entity
def person = new Entity("person")
person['name'] = " "
println person['name']
person.age = 31
println person.age
//
person.save()
//
person.delete()
//
def q = new Query('person')
def list = datastoreService.prepare(q).asList(
Builder.withLimit(20).offset(0) )](https://image.slidesharecdn.com/grongaej-090822090043-phpapp02/85/G-on-GAE-J-75-320.jpg)
G* on GAE/J 挑戦編
- 1. 2009/08/22 @Tokyo def speaker = new Cast(name:”T.Yamamoto”,version:”G*S-2009-08-22”)
- 2. ( ) DTP Web 90%Grails JGGUG( ) Grails 9-11 Grails Acegi Plugin http://d.hatena.ne.jp/mottsnite/
- 11. $ grails create-app eventer $ cd eventer grails.project.plugins.dir="work_tmp/plugins" grails.project.work.dir="work_tmp/work" development { dataSource { dbCreate = "update" url = "jdbc:hsqldb:file:work_tmp/devDB;shutdown=true"
- 12. $ grails run-app
- 13. $ grails create-domain-class org.jggug.Event $ grails create-controller org.jggug.Event
- 14. package org.jggug class Event { /** */ String eventName /** */ Date eventDate /** */ String eventDesc /** */ String place /** */ String groupName /** */ package org.jggug String content class EventController { def scaffold = true Date dateCreated } Date lastUpdated static constraints = { } }
- 15. $ grails run-app
- 16. class Event implements Serializable { static mapping = { id generator:'uuid.hex', params:[type:'string'] } String id ... static constraints = { eventName nullable:false,blank:false eventDate nullable:false,blank:false eventDesc nullable:false,blank:false place nullable:false,blank:false groupName nullable:false,blank:false content nullable:false, blank:false,maxSize:4000 dateCreated display:false lastUpdated display:false }
- 17. event.label = event.eventName.label = /** */ String eventName /**(.*)*/n(.*) (.*) /** */ event.$3.label = $1 Date eventDate /** */ String eventDesc event.eventName.label = event.eventDate.label = event.eventDesc.label =
- 20. $ grails generate-all org.jggug.Event $ grails run-app
- 22. $ grails install-plugin calendar <head> <calendar:resources lang="en" theme="tiger"/> <calendar:datePicker name="eventDate" defaultValue="${eventInstance?.eventDate}" dateFormat="%Y/%m/%d" />
- 25. yui-css ( ) grails install-plugin http://grails.jp/sample/grails-yui-css-2.7.0-M2.zip grails yui-css <head> content=”main” “yui-t1” <meta name="layout" content="main" /> <meta name="layout" content="yui-t1" />
- 40. $ grails install-plugin app-engine Do you want to use JPA or JDO for persistence? (jpa, jdo) jpa grails-app/conf/ datastore-indexes.xml persistence.xml grails-app/conf/Config.groovy GAE google.appengine.application="jggugv4" Grails
- 43. $ grails install-plugin gorm-jpa resources.groovy entityManagerFactory transactionManager entityManagerFactory(org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean) { beanClassLoader = ref("classLoader") } transactionManager(org.springframework.orm.jpa.JpaTransactionManager) { entityManagerFactory = entityManagerFactory } datanucleus-enhancer*.jar cp $APPENGINE_HOME/lib/tools/orm/datanucleus-enhancer-1.1.4.jar lib
- 45. import org.datanucleus.jpa.annotations.Extension import javax.persistence.*; @Entity class Event implements Serializable { @Id @GeneratedValue (strategy = GenerationType.IDENTITY) @Extension (vendorName = "datanucleus", key = "gae.encoded-pk", value = "true") String id /** */ @Column // String eventName
- 46. def save = { def eventInstance = new Event(params) Event.withTransaction{ if(eventInstance.save(flush:true)) { flash.message = "Event ${eventInstance.id} created" redirect action:"show", id:eventInstance.id } else { render view:'create', model:[eventInstance:eventInstance] } } }
- 47. $ grails set-version 1 $ grails app-engine run
- 54. $ grails app-engine package $ rm target/war/WEB-INF/lib/jul-to-slf4j-1.5.6.jar $ appcfg.sh update ./target/war
- 59. export APPENGINE_HOME=/opt/appengine-java-sdk-1.2.2 export PATH=$PATH:$APPENGINE_HOME/bin $ dev_appserver.sh -h $ appcfg.sh -h ※Windows .sh→.cmd
- 66. $ dev_appserver.sh ./war ※Windows .sh→.cmd
- 70. View request.setAttribute 'list', [1, 2, 3, 4] request.setAttribute 'date', new Date() forward 'display.gtpl'
- 75. import com.google.appengine.api.datastore.Entity def person = new Entity("person") person['name'] = " " println person['name'] person.age = 31 println person.age // person.save() // person.delete() // def q = new Query('person') def list = datastoreService.prepare(q).asList( Builder.withLimit(20).offset(0) )
- 77. <system-properties> <property name="file.encoding" value="UTF-8"/> <property name="groovy.source.encoding" value="UTF-8"/> </system-properties>