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... Trang 2The Definitive Guide Trang 3The Definitive Guide to Grails, Second EditionCopyright © 2009 by Graeme Rocher, Jeff Brown All rights ... Unlike the first edition, coverage of Groovy is saved for the appendix If you have no experience using Groovy, then it is recom-mended that you read the appendix first as the chapters themselves ... relieves the developer of the responsibility of obtaining a reference to the data source But don’t get too wrapped up in these concepts for the moment, as their usage will become clear later in the

Ngày tải lên: 13/08/2014, 08:21

... 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 argument passed to the closure is the object being ... Album The value of the hasMany property needs to be a Map The keys in the map represent the names of collection properties that will be added to the domain class, and the values associ-ated with the ... 3-6. Constraining the Password Property in the User Domain Class The validator in Listing 3-6 will fail if the password is equal to the firstName property of the User class The validator closure

Ngày tải lên: 13/08/2014, 08:21

... 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 ... tags besides the fact that they are provided by these libraries Fundamentally, they can be used the same way as any other tag For example, you can use the <g:link> tag like the built-in ... 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

... If the currently logged in user has purchased any songs, then the value of the parameter will be the number of songs they have purchased; otherwise, the value of the ■ Note Note the use of the ... values from the messages files in the grails-app/ i18n/ directory For the simplest case, only the code attribute must be specified when calling the message tag The code attribute tells the message ... the previous code The Elvis operator is a shorthand version of Java ternary operator where the return value for the true condition is the same as the expression being evaluated For example, the

Ngày tải lên: 13/08/2014, 08:21

... using the name of an association as a method call within the criteria, the code first queries the user property of the AlbumPayment class Taking it even further, the code then queries the purchasedAlbums ... of them use the all-too-familiar names success and error, whereas the other is an Exception event handler The error and Exception handlers simply move the flow to the enterCardDetails state The ... 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 user

Ngày tải lên: 13/08/2014, 08:21

... access to the database for the same object However, Hibernate also has a number of other caches including the second-level cache and the query cache In the next section, we’ll explain what the second-level ... injected for the purpose of testing the controller The convention used for the name of the property is basically the property name represen-tation of the class name In other words, it is the class ... 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

Ngày tải lên: 13/08/2014, 08:21

... need to show only the first five posts; therefore, you can use the max parameter to the static list method of the Post class to specify that Listing 13-43 shows the full code for the PostController ... 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 variable to specify the blog ... the decision to allow customization via a parameter? The idea here is that the user of the plugin can very easily customize the layout of the blog through URL mappings For example, consider the

Ngày tải lên: 13/08/2014, 08:21

... 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 value is the ... errors, then you can simply send the Album back to the caller of the REST API with the changes However, if there are validation errors, you can send an error response using the errors property of the ... and go the URI /album, Grails will detect the HTTP GET request and map to the show action of the AlbumController If you then created an HTML form that used the HTTP POST method to submit, the update

Ngày tải lên: 13/08/2014, 08:21

... from the code in Listing 16-32, the subscribe action reuses the _subscribe.gsp template to render an Ajax response to the client The logic in the SubscriptionTagLib deals with the rest To add the ... 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 ... and the columns it uses to create the join To do so, you need to use the joinTable argument on the one side of the association Listing 17-5 shows an example of using the joinTable argument on the

Ngày tải lên: 13/08/2014, 08:21

... XML and another that outputs the same data as a PDF document or renders it in a GUI Unlike the XML produced in Listing A-24, the builder code in Listing A-23 is pure Groovy code and can therefore ... “anonymous” closure to the authors() method of the MarkupBuilder instance, but consider the possibility of assigning this closure to a variable and then passing as an argument the same closure to ... (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

Ngày tải lên: 13/08/2014, 08:21

... semantically, the program that produces the online version can determine which occurrences of the word "book" in the text are actually references to the Book element The Trang 9program can then ... another element, for example <xref linkend="idvalue">, provides the other half These attributes provide whatever application might process the SGML source with the data needed either ... up" within a document) the structure and semantic content of a document It does not mark up the way in which the document will appear to the reader, in print or otherwise In the days before word

Ngày tải lên: 21/01/2014, 06:20

... indicates that the root element, which is the first element in the hierarchical structure of the document, will be <book> and that the DTD used will be the one identified by the public identifier ... ]> These declarations form what is known as the internal subset The declarations stored in the file referenced by the public or system identifier in the DOCTYPE declaration is called the external ... declarations form what is known as the internal subset The declarations stored in the file referenced by the public or system identifier in the DOCTYPE declaration is called the external subset, which

Ngày tải lên: 21/01/2014, 06:20

... parses them as if they were one document 4.5 .2 Use the Catalogs The other way to fix this is with a little catalog... driver file, see plain.dsl in the docbook/ print directory in the ... to) the areas on the page(s) In most cases, it's sufficient to think of the make expressions as constructing the flow objects, but they really only specify the characteristics of the ... text, but other localization files are also provided At the time of this writing, the stylesheets support Dutch,... you can place content The content of the flow objects is then "poured

Ngày tải lên: 21/01/2014, 06:20

... the alternate version of this book that shows all of the element content models in terms of the parameter entities which define them, rather than the "flattened" versions shown here The ... DocBook, V3.0 and the V2 variants, used the owner identifier Davenport, rather than OASIS If you make any changes to the structure of the DTD, it is imperative that you alter the public identifier ... initiative by the United States Department of Defense to standardize the document types used across branches of the military The CALS table model, published in MIL-HDBK-28001, was for a long time the most

Ngày tải lên: 21/01/2014, 06:20

... of the above? Once you’ve decided on the targets, flesh out the defining characteristics of each group If you’ve already read Marketo's The Definitive Guide to Lead Nurturing, you know about the ... calendars There’s a degree of predictability in content that’s not only very helpful to the business or the publisher who’s publishing that content, but also to the audience The regularity of these ... Joe founded The Content Marketing Institute and their feed is invaluable and probably the leading publication For content strategy, there’s Kristina Halvorson who wrote the book on the topic I’m

Ngày tải lên: 18/02/2014, 07:20

... knowledge Instead, the coach adopts the principle that the person beingcoached probably knows more about their own situation thanthe coach does The coach believes in the ability of the indi-vidual ... acknowledges the following to betrue after a conversation they would probably accept that it was coaching: ➡ The focus of the conversation was primarily themselves and their circumstances ➡ Their thinking, ... tions, one person has with another The person who is thecoach intends to produce a conversation that will benefit theother person, the coachee, in a way that relates to thecoachee’s learning and

Ngày tải lên: 21/02/2014, 16:20

... Instagram), email marketing, etc They want to find the information they are looking for in the medium that is most convenient for them at the moment Whether they’re in front of their computers at work ... across channels — and then feed them the exact information they want at the moment you interact with them “Building on the vast increase in consumer power brought on by the digital age, marketing ... computing resources they need from the cloud The ability to tap into the cloud is no longer considered an advantage; rather, it’s a way of life Today, being the customer’s first choice is the only remaining

Ngày tải lên: 18/03/2014, 13:20

... adoptedthe concepts behind Kerberos 4 for their own authentication mechanisms The basics of what was to become the Kerberos 4 protocol are documented in the Athena TechnicalPlan Ultimately, the ... critical to the understanding of the whole After all of these terms have been introduced, we'll finish off by putting all of the pieces together and setthe stage for the detailed description of the Kerberos ... on authentication and authorization, and how they relate to each other 2.1.1 Authentication Simply put, authentication is the process of verifying the identity of a particular user To authenticate

Ngày tải lên: 25/03/2014, 10:47

... 3CouchDB: The Definitive GuideTrang 5CouchDB: The Definitive GuideJ Chris Anderson, Jan Lehnardt, and Noah Slater Beijing • Cambridge • Farnham • Köln • Sebastopol • Taipei • Tokyo Trang 6CouchDB: The ... processed, a second request changes the document Since the second request includes a completely new version of the document, CouchDB can simply append it to the database without having to wait for the ... already know everything involved—all you need to learn are the ways CouchDB puts them together Toward the end of the book, we ramp up the experience level to help you get as comfortable building

Ngày tải lên: 24/04/2014, 14:58

... Trang 3Mercurial: The Definitive GuideTrang 5Mercurial: The Definitive GuideBryan O’Sullivan Trang 6Mercurial: The Definitive Guideby Bryan O’Sullivan Copyright © 2009 ... against their expected results.The advantage of this approach is that the examples are always accurate; they describe exactly the behavior of the version of Mercurial that’s mentioned at the front ... line of the text message that the creator of the changeset entered to describe the changeset • tag: Some changesets, such as the first in the list above, have a tag field A tag isanother way

Ngày tải lên: 24/04/2014, 15:32