The definitive guide to grails second edition - phần 2 pdf

... relates to associations. The easiest case to understand is many -to- one and one -to- one associations. For example, consider the artist property of the Album class, which is a many -to- one association, ... relative URI to redirect to url An absolute URL to redirect to 38 CHAPTER 2 ■ GETTING STARTED WITH GRAILS Figure 2- 1 2. Adding the driver’s JAR file to...

Ngày tải lên: 13/08/2014, 08:21

... Grails to handle other types beyond the preconfigured ones, you need to add a new entry into the grails. mime.types map where the key is the file extension of the format typically used and the ... command: $ grails install-plugin feeds Creating RSS and Atom Feeds What the Feeds plugin does is add functionality to the render method to facilitate the render- in...

Ngày tải lên: 13/08/2014, 08:21

... . 20 6 The Definitive Guide to Grails Second Edition ■■■ Graeme Rocher and Jeff Brown CHAPTER 1 ■ THE ESSENCE OF GRAILS 3 Figure 1-1 . The Grails stack Grails, the Platform When approaching Grails, ... (see Listing 1-1 1). Listing 1-1 1. Running an Application with run-app 20 0 8-0 6-1 9 23 :15:46. 523 :/gTunes:INFO: Initializing Spring FrameworkServle...

Ngày tải lên: 13/08/2014, 08:21

... based on the supplied attributes, which include the following: • controller: The controller name to link to • action: The action name to link to • id: The identifier to append to the end of the URI • ... user. To do so, you can use the create-domain-class command: grails create-domain-class com.g2one.gtunes.User This will create a new domain class at the lo...

Ngày tải lên: 13/08/2014, 08:21

... amazon-a3s-*-java-library.jar file into your project lib directory. 4. Copy the required dependencies commons-codec- 1-3 .jar and commons-httpclient- 3.0.1.jar from the third-party/jakarta-commons directory to your project’s ... INTERNATIONALIZATION Figure 7-1 . The grails- app/i18n/ directory The messages.properties file in the grails- app/i18n/ directory contains default...

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... how the name of the view to transition to is the return value of the closure passed to the to method. In other words, the following three examples are equivalent, with each tran- sitioning to the ... "enterShipping" } The example in Listing 9-5 2 sets the currentState to requireHardCopy. The next trick is to use the signalEvent(String) meth...

Ngày tải lên: 13/08/2014, 08:21

... the first-level cache. Although the first-level cache stores actual persistent instances for the scope of the Session, the second- level cache exists for the whole time that the SessionFac- tory ... Listing 1 3 -2 4 shows how to use dependency injection to get hold of a refer- ence to the CacheService in the CacheTagLib. The cacheOrReturn method is then used to c...

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... jsecurity-0 .2. 1 installed Plug-in provides the following new scripts: grails create-auth-controller grails create-db-realm grails create-ldap-realm grails quick-start As you can see from the output ... plugin, you need to install the simple-cache plu- gin that the album-art plugin is dependent on into the gTunes application: $ grails install-plugin /simple-cache /grai...

Ngày tải lên: 13/08/2014, 08:21

... many -to- many association. A many -to- many association is mapped using a join table in a similar way to a unidirectional one -to- many associ- ation. Figure 1 7-3 shows an example of how a many -to- many ... Conversely, the column argument is used to specify the name of the column to store the identifier of the many side. Crucially, the mapping in Listing 1 7-5 works...

Ngày tải lên: 13/08/2014, 08:21

... mapping, changing, 521 – 524 associations data binding and, 81– 82 GORM, overview of, 25 2 25 3 one -to- many, 24 , 54–56, 521 , 522 – 523 one -to- one, 53–54 many -to- many, 523 – 524 many -to- one, 81, 521 performance ... validation, 21 8 22 2 dynamic transitions, 23 5 23 6 prices for albums, providing, 20 9 purchase, 20 8 querying about CD purchase, 21 6 21 8 recommendations, g...

Ngày tải lên: 13/08/2014, 08:21