Event on autocomplete while loading a form with repeated items

[Heinrich Götzger]

Hoi,

game is going on. I'm still working on filling autocomplete-components.

Handling the copy-event is working as described with the drawback that it's iterating over the complete set on every copy-event.

But now I'm working on the form-loading-task, and I can't find a way to populate an event into the table to get the fr-set-label-event fired so that the autocomplete-component got updated.

I tried to call in the xforms-ready but it seems that it's not finding the targetid="Item_TXT". Populating an event into the fr-table is possible, but still it's not going into the repeat over the item list.


Is this problem understandable?

Thanks for some help.

Kind regards

Heinrich

[Heinrich Götzger]

Hoi,

I tried following within the table-elements for the fr-datatable:

<xf:action
ev:event="xforms-enabled" phase="target"
xxf:iterate="instance('content')/InvoiceItems/item">

<xf:message value="concat(' xforms-enabled ', position(), '
[', TXT, ']')"/>

<xf:send submission="get-TXTItem-submission">
<xf:property
name="txt"
value="TXT"/>
</xf:send>

<xf:dispatch
xxf:repeat-indexes="{position()}"
targetid="Item_TXT"
name="fr-set-label">
<!-- write label from rest-server into field -->
<xf:property
name="label"
value="instance('submission')/txt/item/label"/>
</xf:dispatch>

<xf:message value="concat('submission: [', TXT, '] ==> [',
instance('submission')/txt/item/label, ']')"/>

</xf:action>


All my messages appear as expected, but the autocomplete-component is
not being updated.

Still not getting the correct target/position for some reason.

Any ideas?

Thanks and Cheers

Heinrich

[Alessandro Vernet]

Hi Heinrich,

Let's see if we can tackle this one in a different way. Are you using the
autocomplete in resource mode? Setting the label can like this can cause
performance problems, can be highly inefficient; instead could you use the
`labelref="…"` on the autocomplete?

https://doc.orbeon.com/form-runner/component/autocomplete.html#resource

Alex

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[Heinrich Götzger]

Hoi Alex,

yes, autocomplete is in resource mode:

         <fr:autocomplete
            id="Item_TXT"
            ref="TXT"
            labelref="VTEXT"
            resource="{$rest_api}/txt/all?query={normalize-space(encode-for-uri($fr-search-value))}&amp;maxResults={$maxResults}"
            show-suggestions-button="false">
            <fr:max-results-displayed ref="$maxResults"/>
            <xf:itemset ref="item">
               <xf:label ref="label"/>
               <xf:value ref="value"/>
            </xf:itemset>
         </fr:autocomplete>


While loading the form, I iterate over the items and trigger the submission as last action in xforms-ready for the non empty TXT elements:

         <xf:send submission="get-TXTItem-submission">
            <xf:property
               name="txt"
               value="TXT"/>
         </xf:send>

         <xf:setvalue
            ref="VTEXT"

            value="instance('submission')/txt/item/label"/>

But unfortunately, label is not showing up, the label is not in VTEXT as well, has never been. I think I tried this earlier in some ways.

If this would work, I probably could write the label in VTEXT while creating the xml-form-data and load the form without using the rest-service at all. Best solution in my eyes.

We're using Orbeon Forms 4.5.0.201404080036 CE if this is important.



Thanks and cheers

Heinrich

[Alessandro Vernet]

Hi Heinrich,

If in "resource mode", and you have the label in the instance, then we'd
like the `labelref` to work, because if you dispatch an `fr-set-label`, in
addition to making your code more complicated, the service will be called,
which isn't good for performance.

Could you create a minimal example that I can run here that shows the
`labelref` not working on page load, check that this example also doesn't
work with 2016.3, and share it with us?

Alex

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[Heinrich Götzger]

Hoi Alex,

working 'labelref' would be fine and would be probably be the natural
solution.

An example 'loadAc.xhtml' (minimal?) is attached to this mail. I'm not
100% sure if all is correct in it, please correct if not.

I tried with orbeon-2016.3.201612302139-CE and with Orbeon Forms
4.5.0.201404080036 CE without success.

Thanks for taking a look at it.

Cheers

Heinrich

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[Alessandro Vernet]

Hi Heinrich,

Got it: this is because `labelref` is relative to the node the control is
bound to (with `ref` or `bind`). In your case, the autocomplete's input is
properly populated if you use: `labelref="../VTEXT"`.

The documentation didn't say this, so you couldn't have guessed! I added a
line about this to the doc. (If you create a form with Form Builder, it sets
the `labelref` properly, so most people using the autocomplete didn't need
to worry about it.)

You'll let me know if this is enough to solve the problem.

Alex

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[Heinrich Götzger]

Hoi Alex,

a first glance in the example looks very good! Thanks for taking your time on this issue!

I'll clean up my forms and let you know about the result.

Cheers

Heinrich

[Alessandro Vernet]

Hi Heinrich,

Excellent, and you'll let us know how it works out. And thank you for giving us an opportunity to improve the documentation :).

Alex

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