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Re: ERXDisplayGroup ---> ERXBatchingDisplayGroup
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Re: ERXDisplayGroup ---> ERXBatchingDisplayGroup


  • Subject: Re: ERXDisplayGroup ---> ERXBatchingDisplayGroup
  • From: Ron X <email@hidden>
  • Date: Mon, 19 Mar 2012 16:08:24 +0300

hi!
so we have url:
.woa/wa/entities?batch=5

can i change "batch" to another word?



16 марта 2012 г. 15:16 пользователь Pascal Robert <email@hidden> написал:

Le 2012-03-16 à 08:08, Ron X a écrit :

> but how can i connect this component with datasource?

dgOrganizations is a ERXBatchingDisplayGroup, so you just need to setup that display group.

   public Organizations(WOContext context) {
       super(context);
       EODatabaseDataSource ds = new EODatabaseDataSource(ec, OrganizationProfile.ENTITY_NAME);
       dgOrganizations = new ERXBatchingDisplayGroup<OrganizationProfile>();
       dgOrganizations.setNumberOfObjectsPerBatch(10);
       dgOrganizations.setDataSource(ds);
       dgOrganizations.setSortOrderings(new NSArray<EOSortOrdering>(lastUpdateSort));
  }

   @Override
   public void awake() {
       super.awake();
       isServiceFilter = false;
       dgOrganizations.fetch();
       queryArgs = new NSMutableDictionary<Object, String>();
   }

   public void setBatchIndex(int batchIndex) {
       dgOrganizations.setCurrentBatchIndex(batchIndex);
       queryArgs.takeValueForKey(batchIndex, "batch");
   }

The "organizations" direct action:

 public WOActionResults organizationsAction() {
   String strBatchIndex = this.request().stringFormValueForKey("batch");
   Integer batchIndex = new Integer(1);
   if (strBatchIndex != null) {
     try {
       batchIndex = new Integer(strBatchIndex);
     } catch (Exception e) {
       NSLog.out.appendln("Someone tried to access a batch index with this value : " + strBatchIndex);
     }
   }
   Organizations nextPage = (Organizations)pageWithName(Organizations.class);
   nextPage.setBatchIndex(batchIndex.intValue());
   return nextPage;
 }

> 2012/3/13 Pascal Robert <email@hidden>
> Use ERXDirectActionBatchNavigationBar
>
> <wo:ERXDirectActionBatchNavigationBar
>        actionName = "organizations"
>        containerCssClass = "paginator"
>        batchSize = "$dgOrganizations.batchCount"
>        currentBatchIndex = "$dgOrganizations.currentBatchIndex"
>        showPageNumbers = true
>        numberOfObjects = "$dgOrganizations.allObjects.@count"
> />
>
> Please note that it will use Direct Actions, so it won't work with REST routes. I'm planning to do a similar component for REST because I need it for wocommunity.org, but I won't work on this before end of this month.
>
> > sorry, maybe i explain bad.
> >
> > "so the workflow is so" - that is how it works NOW.
> > but i want to fetching objects at every click of the page and do not changing the url (or have control of changing).
> >
> > 2012/3/13 Pascal Robert <email@hidden>
> >    EODatabaseDataSource dataSource = new EODatabaseDataSource(editingContext(), Category.ENTITY_NAME);
> >    er.extensions.batching.ERXBatchingDisplayGroup dg = new ERXBatchingDisplayGroup<Category>();
> >    dg.setNumberOfObjectsPerBatch(20);
> >    dg.setDataSource(dataSource);
> >    dg.setObjectArray(Category.fetchAllCategories(editingContext()));
> >
> > > hi everybody.
> > > i have some legasy code.
> > > in this code used ERXDisplayGroup:
> > >
> > > //code:
> > > import com.webobjects.appserver.WOContext;
> > > import com.webobjects.appserver.WODisplayGroup;
> > > import com.webobjects.directtoweb.ERD2WUtilities;
> > >
> > > import er.directtoweb.pages.ERD2WListPage;
> > > import er.extensions.batching.ERXBatchingDisplayGroup;
> > > import er.extensions.batching.ERXFlickrBatchNavigation;
> > >
> > > public class BatchNavigationBar extends ERXFlickrBatchNavigation {
> > >     public BatchNavigationBar(WOContext context) {
> > >         super(context);
> > >     }
> > >
> > >     private ERD2WListPage listPage() {
> > >         return (ERD2WListPage) ERD2WUtilities.enclosingPageOfClass(this, ERD2WListPage.class);
> > >     }
> > >
> > >     @Override
> > >     public WODisplayGroup displayGroup() {
> > >         return listPage().displayGroup();
> > >     }
> > >
> > >     public void setCurrentBatchIndex(Integer batchIndex) {
> > >         displayGroup().setCurrentBatchIndex(batchIndex);
> > >     }
> > > }
> > > //end code
> > >
> > > so the workflow is so:
> > >
> > > 1. fetching ALL object of query in array.
> > > 2. and than give me a portion (size if batch) when i am clicking next/prev pages in this component.
> > > 3. but NO work with database per batch - it works with array
> > > 4. when i click next/prev - it adds to the urls of pagination some like this - 1.2.3.1.5.6.7 etc :-) and this brakes my statistics with SEO links.
> > >
> > > so i want to avoid this. and i want to use ERXBatchingDisplayGroup instead of WODisplayGroup (ERXDisplayGroup).
> > > Simple casting not works - falls with cast exception.
> > > the problem in that listPage().displayGroup() - has type WODisplayGroup.
> > >
> > > how can i use in this code ERXBatchingDisplayGroup?
> > >
> > > _______________________________________________
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> >
> >
>
>


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  • Follow-Ups:
    • Re: ERXDisplayGroup ---> ERXBatchingDisplayGroup
      • From: Ron X <email@hidden>
    • Re: ERXDisplayGroup ---> ERXBatchingDisplayGroup
      • From: Pascal Robert <email@hidden>
References: 
 >ERXDisplayGroup ---> ERXBatchingDisplayGroup (From: Ron X <email@hidden>)
 >Re: ERXDisplayGroup ---> ERXBatchingDisplayGroup (From: Pascal Robert <email@hidden>)
 >Re: ERXDisplayGroup ---> ERXBatchingDisplayGroup (From: Ron X <email@hidden>)
 >Re: ERXDisplayGroup ---> ERXBatchingDisplayGroup (From: Pascal Robert <email@hidden>)
 >Re: ERXDisplayGroup ---> ERXBatchingDisplayGroup (From: Ron X <email@hidden>)
 >Re: ERXDisplayGroup ---> ERXBatchingDisplayGroup (From: Pascal Robert <email@hidden>)

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