Domanda
I am having some problems with repeats in XForms. I need to access to some values of a radio button field that is inside a loop. The scope is to make visible an input text if the radio button has selected an specific value. I want this behaviour for all repetitions (radio button and input text field is inside the loop).
It works fine for one row, but when I add a new row, the code does not work any more.
I copy a simple example to check this behaviour:
https://stackoverflow.com/questions/19251280
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Russian<xh:html xmlns:xh="http://www.w3.org/1999/xhtml"
xmlns:ev="http://www.w3.org/2001/xml-events"
xmlns:exf="http://www.exforms.org/exf/1-0"
xmlns:fb="http://orbeon.org/oxf/xml/form-builder"
xmlns:fr="http://orbeon.org/oxf/xml/form-runner"
xmlns:odt="http://orbeon.org/oxf/xml/datatypes"
xmlns:oxf="http://www.orbeon.com/oxf/processors"
xmlns:p="http://www.orbeon.com/oxf/pipeline"
xmlns:saxon="http://saxon.sf.net/"
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:sql="http://orbeon.org/oxf/xml/sql"
xmlns:xf="http://www.w3.org/2002/xforms"
xmlns:xi="http://www.w3.org/2001/XInclude"
xmlns:xpl="java:org.orbeon.oxf.pipeline.api.FunctionLibrary"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xxf="http://orbeon.org/oxf/xml/xforms"
xmlns:xxi="http://orbeon.org/oxf/xml/xinclude">
<xh:head>
<xh:title>Loop</xh:title>
<xf:model id="fr-form-model" xxf:expose-xpath-types="true">
<xf:instance xxf:readonly="true" id="fr-form-metadata">
<metadata>
<application-name>DHszw</application-name>
<form-name>Loop</form-name>
<title xml:lang="en">Loop</title>
<description xml:lang="en">Description of the form.</description>
</metadata>
</xf:instance>
<xf:instance id="fr-form-instance">
<form>
<category-1>
<subcategory-1-1/>
<element-1-1-1/>
<loop-group-0>
<loop-0>
<element-1-1-2/>
<element-1-1-3/>
</loop-0>
</loop-group-0>
<element-1-1-4/>
<element-1-1-5/>
</category-1>
</form>
</xf:instance>
<xf:bind xmlns:dataModel="java:org.orbeon.oxf.fb.DataModel" id="fr-form-binds"
ref="instance('fr-form-instance')">
<xf:bind id="category-1-bind" name="category-1" ref="category-1">
<xf:bind id="subcategory-1-1-bind" name="subcategory-1-1" ref="subcategory-1-1"/>
<xf:bind id="element-1-1-1-bind" name="element-1-1-1" ref="element-1-1-1"/>
<xf:bind id="group-loop-0-bind" name="group-loop-0-bind" ref="loop-group-0"
relevant="($element-1-1-1='yes' )">
<xf:bind id="loop-0-bind" name="loop-0" ref="loop-0" relevant="($element-1-1-1='yes' )">
<xf:bind id="element-1-1-2-bind" name="element-1-1-2" ref="element-1-1-2"
relevant="($element-1-1-1='yes' )"/>
<xf:bind id="element-1-1-3-bind" name="element-1-1-3" ref="element-1-1-3"
relevant="($element-1-1-2='yes' )"/>
</xf:bind>
</xf:bind>
<xf:bind id="element-1-1-4-bind" name="element-1-1-4" ref="element-1-1-4"
relevant="($element-1-1-1='no' ) or ($element-1-1-2='no' )"/>
<xf:bind id="element-1-1-5-bind" name="element-1-1-5" ref="element-1-1-5"
relevant="($element-1-1-1='no' ) or ($element-1-1-2='no' )"/>
</xf:bind>
</xf:bind>
<xf:instance id="fr-form-attachments">
<attachments>
<css filename="" mediatype="text/css" size=""/>
<pdf filename="" mediatype="application/pdf" size=""/>
</attachments>
</xf:instance>
<xf:instance id="fr-form-resources" xxf:readonly="false">
<resources>
<resource xml:lang="en">
<category-1>
<label>LoopCategory</label>
</category-1>
<subcategory-1-1>
<label><b>BasicSubcategory</b><hr></label>
<hint/>
<alert/>
</subcategory-1-1>
<element-1-1-1>
<label>Do you want a loop?</label>
<hint/>
<alert/>
<item>
<label>yes</label>
<value>yes</value>
</item>
<item>
<label>no</label>
<value>no</value>
</item>
</element-1-1-1>
<element-1-1-2>
<label>Do you want an Input Text?</label>
<hint>More</hint>
<alert/>
<item>
<label>yes</label>
<value>yes</value>
</item>
<item>
<label>no</label>
<value>no</value>
</item>
</element-1-1-2>
<element-1-1-3>
<label>Your input text</label>
<hint/>
<alert/>
</element-1-1-3>
<element-1-1-4>
<label>Why no loop?</label>
<hint/>
<alert/>
</element-1-1-4>
<element-1-1-5>
<label>End:</label>
<hint/>
<alert/>
</element-1-1-5>
</resource>
</resources>
</xf:instance>
<xf:instance id="fr-service-request-instance" xxf:exclude-result-prefixes="#all">
<response/>
</xf:instance>
<xf:instance xxf:readonly="true" id="loop-0-template">
<loop-0>
<element-1-1-2/>
<element-1-1-3/>
</loop-0>
</xf:instance>
</xf:model>
</xh:head>
<xh:body>
<fr:view>
<fr:body xmlns:xbl="http://www.w3.org/ns/xbl"
xmlns:dataModel="java:org.orbeon.oxf.fb.DataModel">
<fr:section bind="category-1-bind" id="category-1-control">
<xf:label ref="$form-resources/category-1/label"/>
<xh:tr>
<xh:td>
<xf:output bind="subcategory-1-1-bind" id="subcategory-1-1-control">
<xf:label mediatype="text/html" ref="$form-resources/subcategory-1-1/label"/>
<xf:hint ref="$form-resources/subcategory-1-1/hint"/>
<xf:alert ref="$fr-resources/detail/labels/alert"/>
</xf:output>
</xh:td>
</xh:tr>
<xh:tr>
<xh:td>
<xf:select1 appearance="full" bind="element-1-1-1-bind" id="element-1-1-1-control">
<xf:label ref="$form-resources/element-1-1-1/label"/>
<xf:hint ref="$form-resources/element-1-1-1/hint"/>
<xf:alert ref="$fr-resources/detail/labels/alert"/>
<xf:itemset ref="$form-resources/element-1-1-1/item">
<xf:label ref="label"/>
<xf:value ref="value"/>
</xf:itemset>
</xf:select1>
</xh:td>
</xh:tr>
<xf:group bind="group-loop-0-bind" id="group-loop-0-control">
<fr:grid bind="loop-0-bind" id="loop-0-control" max="10" min="1"
origin="instance('loop-0-template')"
repeat="true">
<xh:tr>
<xh:td>
<xf:select1 appearance="full" bind="element-1-1-2-bind" id="element-1-1-2-control">
<xf:label ref="$form-resources/element-1-1-2/label"/>
<xf:hint ref="$form-resources/element-1-1-2/hint"/>
<xf:alert ref="$fr-resources/detail/labels/alert"/>
<xf:itemset ref="$form-resources/element-1-1-2/item">
<xf:label ref="label"/>
<xf:value ref="value"/>
</xf:itemset>
</xf:select1>
</xh:td>
</xh:tr>
<xh:tr>
<xh:td>
<xf:input bind="element-1-1-3-bind" id="element-1-1-3-control">
<xf:label ref="$form-resources/element-1-1-3/label"/>
<xf:hint ref="$form-resources/element-1-1-3/hint"/>
<xf:alert ref="$fr-resources/detail/labels/alert"/>
</xf:input>
</xh:td>
</xh:tr>
</fr:grid>
</xf:group>
<xh:tr>
<xh:td>
<xf:input bind="element-1-1-4-bind" id="element-1-1-4-control">
<xf:label ref="$form-resources/element-1-1-4/label"/>
<xf:hint ref="$form-resources/element-1-1-4/hint"/>
<xf:alert ref="$fr-resources/detail/labels/alert"/>
</xf:input>
</xh:td>
</xh:tr>
<xh:tr>
<xh:td>
<xf:input bind="element-1-1-5-bind" id="element-1-1-5-control">
<xf:label ref="$form-resources/element-1-1-5/label"/>
<xf:hint ref="$form-resources/element-1-1-5/hint"/>
<xf:alert ref="$fr-resources/detail/labels/alert"/>
</xf:input>
</xh:td>
</xh:tr>
</fr:section>
</fr:body>
</fr:view>
</xh:body>
If this code is run in a Orbeon server, it works fine until we add a new row in the 'repeat' element. Then the input field disappear (or is not visible) regardless the value selected in the radio button.
I imagine, that adding the copy of the row, probably will have the same element name (or changes the original element name) and causes this issue. But I need to access to the value of the radio button for each row. Is it possible? Is it a known bug? How can achieve this?
Soluzione
You can use the relative path to the element instead of the bind variable to refer to element values within the repeat, so in your case:
Replace:
($element-1-1-2='yes' )
with
(../element-1-1-2='yes')
See also orbeon calculated fields in a repeat break after first itiration
This won't work outside the repeat; I'm not sure of your intended logic in the second element-1-1-2 condition.
Regards
jez
