the definitive guide to grails second edition

... Trang 2The Definitive Guide Trang 3The Definitive Guide to Grails, Second EditionCopyright © 2009 by Graeme Rocher, Jeff Brown All rights ... which to entrust to the safer hands of static typing Grails was born from the realization that there is never only just one tool for the job Grails is about providing an entry point for the trivial ... on the contrary, they’re designed to work with Java To embrace it To have Java at their very core Grails is Java through and through, and it allows you to pick and choose which fea-tures to implement

Ngày tải lên: 13/08/2014, 08:21

... Connector/J To configure the driver, drop the driver’s JAR file into the lib directory of the gTunes application, as shown in Figure 2-12 Trang 4Figure 2-12. Adding the driver’s JAR file to the ... name of the test to run The name of the test to run should be the test-case name without the “Tests” suffix For example, execute grails test-app Artist to run the ArtistTests test case The test-app ... other platforms) and essentially requires the following information: • The driver class name • The URL of the database • The username to log in with • The password for the username Currently the

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 ... Here the validator again uses the getUser() method of the LoginCommand to compare the password of the actual User instance with the value of the password property held by the LoginCommand If the ... you’ll notice that the code attempts to persist the User by calling the save() method If the attempt is successful, the User is redirected back to the StoreController: Testing the Registration

Ngày tải lên: 13/08/2014, 08:21

... files in the grails-app/i18n/ directory. Figure 7-1 shows the contents of the grails-app/i18n/ directory. 160 CHAPTER 7 ■ INTERNATIONALIZATION Figure 7-1. The grails-app/i18n/ directory The messages.properties ... CHAPTER... time to introduce the usage of First simply rename the tag references to , and then add the update attribute (mentioned in the previous section about the tag) to the tag ... (with the text “Show the time!”) to the page, which when clicked will execute an asynchronous request to the showTime action of the StoreController The update attribute of the

Ngày tải lên: 13/08/2014, 08:21

... triggered, the transition action will halt the transition to the loadRecommendations state, returning the user to the enterShipping state. The view will then render any errors that occurred so the ... the enterCardDetails view state, you need to implement the back event that allows the user to return to the previous screen Using a static event name to transition back to the ... leverage the storeLayout once again to make sure the user interface remains consistent. Each <g:link> tag uses the event attribute to specify the event to trigger. Figure 9-3 shows what the

Ngày tải lên: 13/08/2014, 08:21

... Trang 24The StoreController can now take advantage of the purchaseAlbums method in the StoreService To do this, the StoreController needs to define the storeService property and then invoke the purchaseAlbums ... 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 exists Remember, the SessionFactory ... for example, use the merge method to merge the changes back into the database Alternatively, you could return the error to the user and ask him to perform a manual merge of the changes It really

Ngày tải lên: 13/08/2014, 08:21

... always try to publish to the Grails central repository. To tell the release-plugin command to publish to one of the repositories config- ured as in Listing 13-32, you need to add the name of the repository ... specify the plugin that this template belongs to; otherwise, Grails will attempt to resolve the template within the application it is installed into. Second, take note of the usage of the grailsApplication ... minutes to implement in Grails, so it shouldn’t be too complicated. The first step is to run the create-plugin command to create the blog plugin: $ grails create-plugin blog This will create the

Ngày tải lên: 13/08/2014, 08:21

... Additional MIME Types To tell 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 ... errors to the user In the case of XML, the logic is a little different If there are no errors, then you can simply send the Album back to the caller of the REST API with the changes However, if there ... into the Poster plugin’s “Content to Send” field Then simply modify the data to reflect the changes you want to make For example, if you want to change the genre from Alternative & Punk to

Ngày tải lên: 13/08/2014, 08:21

... “notsubscribed” will be written to the mock out variable. OK, with the tests out of the way, the next thing to do is to modify the grails-app/views/artist/_artist.gsp template to include the new _subscribe.gsp ... possible in any other dynamic lan- guage on the JVM. The remainder of the code simply obtains a FileChannel instance and then calls the transferTo method to transfer the file to the response OutputStream. ... able to subscribe to their favorite artists, it is time to consider the onNewAlbum method of the StoreService class again. Whenever a JMS message is received, you’re going to need to find all the

Ngày tải lên: 13/08/2014, 08:21

... (excuse the pun) built-in, including but not ited to the following: lim-• The MarkupBuilder for constructing, typically XML, markup • The DOMBuilder for constructing W3C DOM trees • The AntBuilder to ... application Grails utilizes builders all over the place, from constructing Hibernate criteria to rendering markup to the HTTP response Builders are a key element in the conciseness and power that Grails ... possibility of assigning this closure to a variable and then passing as an argument the same closure to different builders, one that renders XML and another that outputs the same data as a PDF document

Ngày tải lên: 13/08/2014, 08:21

... Shipped to the customer in WA Therefore, the seller charges sales tax Shipped to the customer in WA Therefore, the seller has seller’s use tax obligation Shipped to the customer in WA Therefore, the ... that the state received the appropriate revenue With few exceptions, the purchaser is not released from the ultimate liability of the tax if the seller fails to collect and remit the tax due to the ... from the liability of collecting the sales or seller’s use tax, even though the purchaser may have self-assessed the tax on the purchase The burden of proof falls on the seller and they have the

Ngày tải lên: 05/11/2014, 22:50

... 368 The Behaviors of Attribute-Based Validation 369 Using the Built-In Validators 370 Object Validators 370 Composite Validators 375 Basic Validators 376 Creating a Custom Validator ... ways to crank out code faster so we can get to the next biggest thing From the beginning days of computing with punch cards all the way to the modern-day managed appli-cations created with the ... first need to understand the type of business theapplication is for or in some cases who the audience of the application is if it is not specific to a business Understanding the needs of the stakeholders

Ngày tải lên: 04/12/2015, 15:25

... back to the browser, which will then request thenew URL The address appearing in the address bar of the user’s browser will change tothe new URL This approach requires a second round-trip to the ... phone numbers You enter the regular expression into the top box, and the string that you want it to match in the String to Match Against box, and then run it Figure 2-1.The Rebug Regular Expression ... considered The amazing thing is that, in most of these cases, there’s a way to twist mod_rewrite to do what is desired It’s hard to categorize these weird examples, but I’ll try to illustrate some of them

Ngày tải lên: 07/04/2017, 16:35

... class. The validator closure should return false if validation fails; otherwise it should return true. The first argument passed to the closure is the value of the property to be validated. The second ... gTunes Upon completion, the command will have created the gTunes Grails application and the necessary directory structure. The next step is to navigate to the newly created application in the command window ... in the example with the save() method, except that the validate() method doesn’t attempt to save the instance to the database. If validation fails, the application might want to make changes to...

Ngày tải lên: 18/02/2014, 05:20

... Next button. 6. In the Customize Environment and Service Settings page, ensure the No radio button is selected and click the Next button. 7. Set the domain name to osb30_book and click the Create ... 2-4. Naming the new library Next, click the Add JARs button. You need to navigate into your C:\Oracle\osb30\wlserver_ 10.0\server\lib directory to find the JAR files you need. Select the following ... contains the client stubs necessary for the client applications to call the EJB application. If you make a change to any of the APIs of the EJB application, you need to recompile and deploy the EJB...

Ngày tải lên: 22/03/2014, 10:20

... when the user presses the Tab key. The effect of the tabindex values in the listing is that, as the Tab key is pressed, the focus shifts from the first input element to the third and then to the ... case, the word apples). Together, the tags and the content form the code element, as shown in Figure 3-1. Figure 3-1. The anatomy of an HTML element Elements are the way you tell the browser ... added the attribute name to the element. The input element provides a means for the user to enter data into an HTML form (which I describe in Chapter 12). Adding the disabled attribute stops the...

Ngày tải lên: 17/02/2014, 23:20

... Generally, though, the larger publishers and the technology providers that can hand on the royalty payments to their customers are able to support MP4 H.264/AAC. The others can offer only Ogg Theora or ... or the <audio> is set to start playback automatically, for which it requires an @autoplay attribute. @autoplay To make the audio autostart, you need to add an attribute called @autoplay. ... Listings together on a single web page, added controls (that’s the transport bar at the bottom; we’ll get to this later) and fixed the width to 300px to make a straight comparison between all the...

Ngày tải lên: 17/02/2014, 23:20

... notice the sharing buttons or be compelled to use them. Here is an example of traditional, passive social sharing: You see the social shares up top, but that is the only place they appear to the ... to drive traffic to their website. They also created content such as whitepapers and webinars to convert traffic into leads. The best marketers realized that their leads were often sent too ... build our editorial calendar around monthly themes and then put together the content pieces to support that theme, including, but not limited to, SlideShare decks, white papers, blog posts,...

Ngày tải lên: 18/02/2014, 07:20

... feel equipped to cope, they should refer the individual to a relevant specialist. If a coach does want to work in one of the above areas, then I would encourage them to go and get the relevant ... on the thoughts of the coach – this reduces the ability of the coachee to deepen their own learning in the conversation. ➡ The coach can experience significant pressure within the conversation to ... contribution to the process of helping people to experience life the way they want to experience it. For some people coaching can literally change their lives for the better. With the support...

Ngày tải lên: 21/02/2014, 16:20