Changes for page Your First Stateful Project
Last modified by Bastian Triller on 2021/08/07 03:59
From version 9.1
edited by Pascal Robert
on 2012/08/06 05:45
on 2012/08/06 05:45
Change comment:
There is no comment for this version
To version 3.1
edited by Pascal Robert
on 2012/08/06 05:04
on 2012/08/06 05:04
Change comment:
There is no comment for this version
Summary
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Page properties (1 modified, 0 added, 0 removed)
Details
- Page properties
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... ... @@ -11,54 +11,8 @@ 11 11 * The main page will display a list of blog entries, with a link to see the blog entry. 12 12 * The main page will have a link to an "admin" page that will show a login form. 13 13 * After login, a list of blog entries with links to edit, delete and create blog entries will be show. 14 -* We need a form to edit/create blog entries. 14 +* We need a form to edit/create blog entries. 15 15 16 16 Let's start by creating a new project in Eclipse. You need to create a **Wonder Application** project type, and name it **StatefulBlog**. 17 17 18 18 [[image:Capture d’écran 2012-08-06 à 04.56.13.png||border="1"]] 19 - 20 -Just like the D2W tutorial, you need to link the application with the **BlogCommon**, **Ajax** and **H2PlugIn** frameworks. To do so, right-click on **StatefulBlog** and select **Build Path** > **Configure Build Path**. 21 - 22 -[[image:Capture d’écran 2012-07-29 à 14.25.46.png||border="1"]] 23 - 24 -In the **Libraries** tab, click on **Add Library**. Select **WebObjects Frameworks** and click **Next**. Check **Ajax**, **BlogCommon** and **H2PlugIn** from the list and click **Finish**. The **Libraries** tab should look like this: 25 - 26 -[[image:Capture d’écran 2012-08-06 à 05.15.32.png||border="1"]] 27 - 28 -We are ready to code! Open the **Components** folder of the project, and open **Main WO**. In the **Related** view (bottom-right), you see that all related files of the component are listed, and we need to open the Java code associated with the component. To do so, in the **Related** view, double-click on **Main.java** to open the Java class into an editor. 29 - 30 -In **Main.java**, we need some Java code to get the list of blog entries so that we can show that list into the component. The following code will do what we need: 31 - 32 -{{code}} 33 - 34 -import com.webobjects.appserver.WOContext; 35 -import com.webobjects.eoaccess.EODatabaseDataSource; 36 -import com.webobjects.eocontrol.EOEditingContext; 37 - 38 -import er.extensions.batching.ERXBatchingDisplayGroup; 39 -import er.extensions.components.ERXComponent; 40 -import er.extensions.eof.ERXEC; 41 - 42 -public class Main extends ERXComponent { 43 - 44 - public Main(WOContext context) { 45 - super(context); 46 - EODatabaseDataSource dataSource = new EODatabaseDataSource(editingContext(), BlogEntry.ENTITY_NAME); 47 - ERXBatchingDisplayGroup<BlogEntry> dg = new ERXBatchingDisplayGroup<BlogEntry>(); 48 - dg.setNumberOfObjectsPerBatch(20); 49 - dg.setDataSource(dataSource); 50 - dg.setObjectArray(BlogEntry.fetchAllBlogEntries(editingContext(), BlogEntry.LAST_MODIFIED.descs())); 51 - } 52 - 53 - private EOEditingContext _ec; 54 - 55 - private EOEditingContext editingContext() { 56 - if (_ec == null) { 57 - _ec = ERXEC.newEditingContext(); 58 - } 59 - return _ec; 60 - } 61 - 62 -} 63 - 64 -{{/code}}