Select1 copy model (xf:copy in xf:itemset)

Hi All,

I am trying to create a dynamic drop-down (like the control) that will copy
the node structure rather than just the value of the control.

For example I have the following XML

<xf:instance id="itemset">
    <test>
        <entry>
            <name>John</name>
            <id>1</id>
            <type>person</type>
        </entry>
        <entry>
            <name>Test</name>
            <id>2</id>
            <type>N/A</type>
        </entry>
        <entry>
            <name>Fed</name>
            <id>3</id>
            <type>Food</type>
        </entry>
    </test>
</xf:instance>

I populate an item set with the following

<xf:itemset ref="entry">
    <xf:label ref="name"/>
    <xf:value ref="."/>
</xf:itemset>

I create a binding to my XBL with the following

<xf:var name="binding" value="xxf:binding('workflow-rest-search')"/>

I then use the xf:select1 (Like in the dynamic drop-down)

<xf:select1 ref="$binding" id="select1" xbl:attr="xxf:encrypt-item-values">
   
    <xf:item>
        <xf:label/>
        <xf:value/>
    </xf:item>
    <xf:choices context="instance()">
        <xbl:content includes=":root > xf|itemset, :root > xf|item, :root >
xf|choices" xxbl:scope="inner"/>
    </xf:choices>
</xf:select1>

The result of this is a dropdown with all the options, however the when one
is selected, it inserts the value of the choice (eg. Fed -> Fed 3 Food) but
what I am looking for is the whole structure to be used.

<entry>
    <name>Fed</name>
    <id>3</id>
    <type>Food</type>
</entry>

Is there a way to achieve this? I have tried the following,

<xf:itemset ref="entry">
    <xf:label ref="name"/>
    <xf:copy ref="."/>
</xf:itemset>

However when I try too use xf:copy I get the following error

Unknown control: xf:copy    

Any ideas around this?

Thanks for your time,
Joel.


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Hi Joel,

I think the issue is that at this point Orbeon Forms' implementation of
XForms does not support `<xf:copy>` inside an `<xf:itemset>`. Would you be
able to use a simple value as a workaround, or store the value somewhere and
upon `xforms-select` run an `xf:insert` that inserts the subtree?

https://www.w3.org/community/xformsusers/wiki/XForms_2.0#ui-selection-commonelems-copy

‑Alex

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Hi Alex!

Thanks for your reply!

So taking your advice.. I now am returning the index of the selected
"choice" from the select1, and inserting that into an instance with the
following.

<xf:instance id="choice"><index/></xf:instance>

<xf:bind ref="instance('choice')" name="choice" id="choice-bind"/>

<xf:var name="choice" value="bind('choice-bind')"/>

<xf:select1 ref="$choice" id="select1" xbl:attr="xxf:encrypt-item-values">
    <xf:item>
        <xf:label/>
        <xf:value/>
    </xf:item>
    <xf:choices context="instance()">
                   
    <xbl:content includes=":root > xf|itemset, :root > xf|item, :root >
xf|choices" xxbl:scope="inner"/>
    </xf:choices>
</xf:select1>

Now I am having an issue with getting the value at the index!

say I have the following tree (returned from my submission, converted from
json)

<json type="object">
   <size type="number">10</size>
   <total type="number">2</total>
   <results type="array">
      <_ type="object">
         <patientNs>IHN</patientNs>
         <city>Los Angeles</city>
         <state />
         <masterPatientIdentifier>IHN:123401</masterPatientIdentifier>
         <dob>19540701</dob>
         <postcode>5001</postcode>
         <addr2 />
         <addr1>1 Neverland Ranch</addr1>
         <sex>I</sex>
         <patientUrno />
         <lastName>Mo</lastName>
         <firstName>Jo</firstName>
      </_>
      <_ type="object">
         <patientNs>IHN</patientNs>
         <city>Los Angeles</city>
         <state />
         <masterPatientIdentifier>IHN:000001</masterPatientIdentifier>
         <dob>19290621</dob>
         <postcode>5001</postcode>
         <addr2 />
         <addr1>1 Neverland Ranch</addr1>
         <sex>I</sex>
         <patientUrno />
         <lastName>Mo</lastName>
         <firstName>Jo</firstName>
      </_>
   </results>
   <order>asc</order>
   <sort>id</sort>
   <start type="number">0</start>
</json>

Now in this list I am populating a select1 with the itemset of

<xf:itemset ref="results/_">
    <xf:label ref="concat('firstName' , ', ' , 'lastName'"/>
    <xf:value ref="count(preceding-sibling::*[name() = name(current())])"/>
</xf:itemset>

This now gives me the index of my selection in the instance choice (as
declared above)

Now I have my action with the observer set on the get-itemset submission..
       
<xf:action event="xforms-submit-done" observer="get-itemset"
ref="instance('itemset')">
   
    <xf:setvalue ref="$binding" value="???"/>
</xf:action>

I have tried getting the xpath with the following

<xf:var name="itemset-exp" xxbl:attr="xf:itemset/@ref" xxbl:scope="outer"/>

<xf:var name="itemset-exp-avt" xxbl:attr="xf:itemset/@ref"
xxbl:scope="outer"/>
<xf:var name="itemset-exp">
    <xxf:value value="xxf:evaluate-avt($itemset-exp-avt)"
xxbl:scope="outer"/>
</xf:var>

I am just not sure how to get the xpath from the items set and apply it.

Any ideas?

Any Questions about my explanation let me know! I have been trying to figure
this out all day! Argh!

Also on a side note, is there a better way to format code for posting on the
fourms?

Cheers, and thanks again for your time...
Joel.

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Hi Joel,


Joel Oates wrote
> Now I have my action with the observer set on the get-itemset submission..

What does the `get-itemset` submission do? And why do you need to set the
value of the node the component is bound to when the submission returns?


Joel Oates wrote
Is the itemset specified by the user of your XBL component? How is your
component used? Also, could you attach the entire source of the component?
And what is the component doing, at a high level?

For including source, we're planning to move to Discourse after the 2019.1
release, which will make it much better. In the meantime, what you did seems
to work. And if it doesn't, you can also attach files with the source.

‑Alex

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Hi Alex,

Here is the entire component,This is based off the dynamic-dropdown-select1
XBL, I am trying to modify it to insert the selected itemset tree (All the
XML rather than just the values) into the xbl-binding.

<?xml version="1.0" encoding="UTF-8"?>
<xbl:xbl xmlns:xh="http://www.w3.org/1999/xhtml"
    xmlns:xf="http://www.w3.org/2002/xforms"
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
    xmlns:ev="http://www.w3.org/2001/xml-events"
    xmlns:xi="http://www.w3.org/2001/XInclude"
    xmlns:xxi="http://orbeon.org/oxf/xml/xinclude"
    xmlns:xxf="http://orbeon.org/oxf/xml/xforms"
    xmlns:exf="http://www.exforms.org/exf/1-0"
    xmlns:fr="http://orbeon.org/oxf/xml/form-runner"
    xmlns:fb="http://orbeon.org/oxf/xml/form-builder"
    xmlns:saxon="http://saxon.sf.net/"
    xmlns:workflow="http://www.infomedix.com.au/workflow"
    xmlns:xbl="http://www.w3.org/ns/xbl"
    xmlns:xxbl="http://orbeon.org/oxf/xml/xbl"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

    <fb:metadata>
        <fb:display-name lang="en">CPF Experimental
Controls</fb:display-name>
    </fb:metadata>

    <xbl:binding id="workflow-rest-search" element="workflow|rest-search"
xxbl:mode="lhha binding">
        <metadata xmlns="http://orbeon.org/oxf/xml/form-builder" >
            <display-name lang="en">Rest Search</display-name>
            <icon lang="en">
            </icon>
            <template>
                <workflow:rest-search ref="" resource="">
                    <xf:label ref="" />
                    <xf:hint ref="" />
                    <xf:help ref="" />
                    <xf:alert ref="" />
                    <xf:itemset ref="item">
                        <xf:label ref="label"/>
                        <xf:value ref="value"/>
                    </xf:itemset>
                </workflow:rest-search>
            </template>
            <control-details>
                <xf:model>
                    <xf:bind ref="@resource"/>
                    <xf:bind ref="xf:itemset">
                        <xf:bind ref="@ref | xf:label/@ref | xf:value/@ref"
                            type="xxf:xpath2"
                            required="true()"/>
                    </xf:bind>
                </xf:model>
                <fr:grid>
                    <xh:tr>
                        <xh:td colspan="2">
                            <xf:input ref="@resource">
                                <xf:label
ref="xxf:r('dialog-http-services.resource.label', '|fr-form-resources|')"/>
                                <xf:hint
ref="xxf:r('dialog-http-services.resource.hint',  '|fr-form-resources|')"/>
                            </xf:input>
                        </xh:td>
                    </xh:tr>
                    <xh:tr>
                        <xh:td colspan="2">
                            <xf:input ref="xf:itemset/@ref">
                                <xf:label
ref="xxf:r('dialog-actions.items.label', '|fr-form-resources|')"/>
                                <xf:hint
ref="xxf:r('dialog-actions.items.hint',  '|fr-form-resources|')"/>
                            </xf:input>
                        </xh:td>
                    </xh:tr>
                    <xh:tr>
                        <xh:td>
                            <xf:input ref="xf:itemset/xf:label/@ref">
                                <xf:label
ref="xxf:r('dialog-actions.item-label.label', '|fr-form-resources|')"/>
                                <xf:hint
ref="xxf:r('dialog-actions.item-label.hint',  '|fr-form-resources|')"/>
                            </xf:input>
                        </xh:td>
                        <xh:td>
                            <xf:input ref="xf:itemset/xf:value/@ref">
                                <xf:label
ref="xxf:r('dialog-actions.item-value.label', '|fr-form-resources|')"/>
                                <xf:hint
ref="xxf:r('dialog-actions.item-value.hint',  '|fr-form-resources|')"/>
                            </xf:input>
                        </xh:td>
                    </xh:tr>
                </fr:grid>
            </control-details>
        </metadata>
        <xbl:resources>
            <xbl:style src="" />
        </xbl:resources>
       
        <xbl:implementation>
            <xf:model id="xbl-model">
                <xf:instance id="itemset"><dummy/></xf:instance>
                <xf:instance id="choice"><index/></xf:instance>
                <xf:instance
id="submission-ran"><count>0</count></xf:instance>
                <xf:submission id="get-itemset" method="get"
resource="{event('resource')}" replace="instance" serialization="none">
                    <xf:setvalue ev:event="xforms-submit-done"
ref="instance('submission-ran')" value=". + 1"/>
                    <xf:action ev:event="xforms-submit-error">
                        <xf:insert ref="instance('itemset')"
origin="xf:element('dummy')"/>
                    </xf:action>
                </xf:submission>
                <xf:bind ref="instance('choice')" name="choice"
id="choice-bind"/>
                <xf:bind ref="xf:itemset" name="itemset" id="itemset-bind"/>
            </xf:model>
        </xbl:implementation>
       
        <xbl:template>
            <xf:var name="binding"
value="xxf:binding('workflow-rest-search')"/>
            <xf:var name="choice" value="bind('choice-bind')"/>
            <xf:var name="resource-avt" xbl:attr="xbl:text=resource"
xxbl:scope="outer"/>
            <xf:var name="resource">
                <xxf:value value="xxf:evaluate-avt($resource-avt)"
xxbl:scope="outer"/>
                <xf:action ev:event="xforms-enabled xforms-value-changed">
                    <xf:send if="xxf:non-blank($resource)"
submission="get-itemset">
                        <xf:property name="resource" value="$resource"/>
                    </xf:send>
                </xf:action>
            </xf:var>

            <xf:select1 ref="$choice" id="select1"
xbl:attr="xxf:encrypt-item-values" >
                <xf:item>
                    <xf:label/>
                    <xf:value/>
                </xf:item>
                <xf:choices context="instance()">
                    <xbl:content includes=":root > xf|itemset, :root >
xf|item, :root > xf|choices" xxbl:scope="inner"/>
                </xf:choices>
            </xf:select1>
           

           

            <xf:var name="itemset-exp-avt" xxbl:attr="xf:itemset/@ref"
xxbl:scope="outer"/>
            <xf:var name="itemset-exp">
                <xxf:value value="xxf:evaluate-avt($itemset-exp-avt)"
xxbl:scope="outer"/>
            </xf:var>
           
            <xf:var name="ree-avt" xbl:attr="xbl:text=resource"
xxbl:scope="outer"/>
            <xf:var name="ree">
                <xxf:value value="xxf:evaluate-avt($ree-avt)"
xxbl:scope="outer"/>
            </xf:var>
           
           
            <xf:action event="xforms-submit-done" observer="get-itemset"
ref="instance('itemset')">
                <xf:message ref="results/_">
                </xf:message>
                <xf:message ref=".">
                </xf:message>
                <xf:message ref="$ree">
                </xf:message>
            </xf:action>
             

             
            <xf:action event="xforms-value-changed" observer="select1">
                <xf:message ref="$choice"/>
            </xf:action>
           
            <xf:var name="submission-ran"
value="instance('submission-ran')/string()">
                <xf:action ev:event="xforms-value-changed">
                    <xf:var name="new-values" value="xxf:itemset('select1',
'xml', false())//value/string()"/>
                    <xf:setvalue if="not($binding = ($new-values, ''))"
ref="$binding"/>
                    <xf:insert context="$binding" if="empty(@itemset-empty)"
origin="xf:attribute('itemset-empty')"/>
                    <xf:setvalue ref="$binding/@itemset-empty"
value="count($new-values) = 1"/>
                </xf:action>
            </xf:var>
        </xbl:template>
    </xbl:binding>
</xbl:xbl>


Thanks for the quick reply

Cheers,
Joel.


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Hi Joel,

Thank you for the source of the XBL component. I now understand how the
`xf:itemset` is specified by form authors in the Control Settings dialog.
This component looks awfully similar to the Dynamic Data Dropdown (which,
BTW, is improved in 2019.1 and can also behave more like an autocomplete
control). Is there something that you're aiming for that isn't done already
by the Dynamic Data Dropdown? Or, to rephrase that question, what is it that
you are trying to do in that component, at a high level?

‑Alex

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Hi Alex,

What I am trying to complete at a high level is a "patient" object search.
So the idea is what I have a form witch a few feilds (Patient
Name(first/last) an ID , etc etc~. Then with this information I want to make
a request to our system which will return a list of patients that match the
search criteria, with this list of patients returned I want to be able to
select (from a list) which patient object that I wish to use...

I made a little screen mock up in my design of what I want to achieve. Where
the the component I want to "Implement" is the "Search" in this picture, and
the table is the popup.

<http://discuss.orbeon.com/file/t375722/1568290678127.png>

Now I am going to need to do searches like this in many different places, so
I wanted something that I could use in all of those places.

Is something like this achievable with the new and Improved Dynamic Data
Dropdown?

Thanks for your reply.
Joel

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Hi Joel,

Just a couple of quick questions: do you want the component to show the list
of possible results in a table (as in your mockup), or is a dropdown OK? And
would you like the search fields (patient first, last name…) to be part of
the component, or would they be part of the form, and their value fed to the
component?

‑Alex

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Hi Alex,


Alessandro  Vernet wrote
>  do you want the component to show the list
> of possible results in a table (as in your mockup), or is a dropdown OK?

A table of results is my end goal (I was using the select1 for now and
thinking about modifying to appearance later)


Alessandro  Vernet wrote
> would you like the search fields (patient first, last name…) to be part of
> the component, or would they be part of the form, and their value fed to
> the
> component?

The idea at the moment is just to use those fields as apart of the Resource
passed into the control. So I would like them to be fed into to component.

Cheers,
Joel.



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Hi Joel,

> A table of results is my end goal (I was using the select1 for now and
> thinking about modifying to appearance later)

If at all possible, I'd recommend you use a Dynamic Data Dropdown for now,
instead of creating your own component. Then, when you upgrade to 2019.1,
you'll be able to mark it as "with search", and it will act more like an
autocomplete, letting user search through a larger set of values. Would
something along those lines be enough for your use case?

‑Alex

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Hi Alex,

I looked into the stuff that you mentioned with the new select1 and wasn't
to certain that it would do what I wanted, So I took another approach. I
instead made a new repeat inside a table to populate the result from my
submission, and use added a trigger to the end which I can use to select the
nodeset.

Code Sample:

https://pastebin.com/aTwPESLu

(HTML Tags Screwed up in the post)

What I end up with is the following,
<http://discuss.orbeon.com/file/t375722/Search-Table-Test.png> 

I use all this in a dialogue, which i just insert the selected result back
into the main "patient" instance.


Cheers,
Joel.

Very good Joel, I'm glad you got this table to show, and indeed seems better
for your use case than the dropdown with search I was referring to.

‑Alex

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