Create dynamic table with programmatic datasources

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#1

Hi.

I’m creating this table, without datasource. The datasource will be created in the controller in init() method.
Now, the problem is why it always throws Exception:
GuiDevelopmentException: Table ‘rows’ element doesn’t have ‘datasource’ attribute

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#2

Hello,

Here is the answer to a similar question: NOOB - fill table from results of a service - CUBA.Platform

Unfortunately, the table XML loader works in such a way that a datasource for the table should be specified in XML too. This is a shortcoming and probably we will fix it in the future.

For now, you have to create the table programmatically together with the datasource. For example:


Table table = componentsFactory.createComponent(Table.class);
table.setDatasource(ds);
table.setColumnCaption("mechanic", "Mechanic");
table.setColumnCaption("orders", "Orders");

table.setWidth("100%");
table.setHeight("100%");

addComponent(table);
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#3

  1. Create a new entity (non-persistent), with the fields you want to show

  2. in the XML:
    <data>
    <collection id="tableDc" class="the enity you created">
    <loader id="tableDl">

    <layout>
    <table id="tabTable" dataContainer="tableDc" width="100%">
    <columns>
    <column id="name of the column">

  3. in the java file:(Install delegate for DataLoader)
    @Inject
    private DataManager dataManager;

    @Install(to = “tableDl”, target = Target.DATA_LOADER)

    private List<entity that you created> tableDlLoadDelegate(LoadContext<entity that you created> loadContext){
    //Stream must be of the type of the enitty you created
    Stream<entity that you created> context=dataManager.loadList(loadContext).stream();

    //data is a list or map of entities that you create
    Stream<entity that you created> dataStream=data.stream();

    Stream<entity that you created> dl=Stream.concat(context,dataStream);
    return dl.collect(Collectors.toList());
    }

  4. in onInit(), in the same java field:
    tableDl.load();

And that work for me

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