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Tham khảo tài liệu 'creating applications with mozilla-chapter 10. rdf, rdf tools, and the content model-p5', công nghệ thông tin, quản trị web phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Chapter 10. RDF RDF Tools and the Content Model-P5 10.1.3.2. Root resource In Example 10-11 everything you need to display a datasource dynamically is present. The only difference between this dynamically generated version and a static RDF-based template is the datasources rdf null which specifies that the template does not refer to an actual datasource. Data that is edited rearranged or changed in a different way is often displayed dynamically in the UI with templates in this manner. 10.5. JSLib RDF Files Working with actual RDF files is not easy. However JSLib http jslib.mozdev.org provides an RDF file library that can help you develop an RDF-based application. The library provides many types of error checking as well as a friendly abstraction away from the RDF XML interfaces of Mozilla see Section 10.3.11 later in this chapter . Example 1012 shows some common uses of the RDFFile class in JSLib. This functionality can be used in situations in which you have data in RDF that you want to pull out manually and use piece by piece rather than as a whole datasource in a template . Example 10-12. Creating and modifying an RDF file using JSLib var rdfFileURL chrome jarfly content jar.rdf var gTreeBody null var gListbox null var gRDF null function onload fileUtils new FileUtils path fileUtils.chrome_to_path rdfFileURL if navigator.platform Win32 path path.replace g Only needed on Windows until JSLib is fixed gRDF new RDFFile path jar flies http mozdev.org fly-rdf gTreeBody document.getElementByld tb gTreeBody.database.AddDataSource gRDF.dsource gListbox document.getElementByld list gListbox.database.AddDataSource gRDF.dsource rebuildLists function rebuildLists gTreeBody.builder.rebuild gListbox.builder.rebuild function update name document.getElementById nameField .value color document.getElementById colorField .value quantity document.getElementById quantityField .value seqNumber -1 del false replace false if document.getElementById delete .checked del true if .
