Form Runner functions

Availability
[SINCE Orbeon Forms 2016.2]
These functions are only available within the context of Form Runner.
Configuration
These functions are automatically available from Form Runner.
For plain XForms, the user needs to import the Form Runner function library by adding the following attribute on the first <xf:model>:
xxf:function-library="org.orbeon.oxf.fr.library.FormRunnerFunctionLibrary"
Namespace
These functions are in the Form Runner namespace:
http://orbeon.org/oxf/xml/form-runner
This namespace is usually bound to the fr: prefix:
xmlns:fr="http://orbeon.org/oxf/xml/form-runner"
Base functions
fr:app-name()
fr:app-name() as xs:string
Return the form's application name.
fr:control-string-value()
[SINCE Orbeon Forms 2018.1]
fr:control-string-value(
    $control-name   as xs:string,
    $follow-indexes as xs:boolean = false()
) as xs:string?
$control-name
must correspond to an existing value control (statically)
$follow-indexes
if missing, takes the value false().
if false()
This finds the "closest" matching control without checking repeat indexes. When descending into repeat iterations, the first repeat iteration is chosen. 
if true()
This finds the "closest" matching control by following repeat indexes when possible. When descending into repeat iterations, the iteration matching the enclosing repeat's current index is chosen. 
This function returns the value of a Form Runner control by name as a string, or an empty sequence if the control or value is not found.
fr:control-typed-value()
[SINCE Orbeon Forms 2018.1]
fr:control-typed-value(
    $control-name   as xs:string,
    $follow-indexes as xs:boolean = false()
) as array(xs:anyAtomicType)
Like fr:control-string-value() (see above), but it returns:
an XPath array() of all the values found 
each value has an XPath type when possible, including:
xs:string
xs:boolean
xs:integer
xs:decimal
xs:date
xs:time
xs:dateTime
$follow-indexes
if missing, takes the value false().
if false()
This finds the "closest" matching control without checking repeat indexes. When descending into repeat
iterations, all repeat iterations is chosen. 
if true()
This finds the "closest" matching control by following repeat indexes when possible. When descending into repeat
iterations, the iteration matching the enclosing repeat's current index is chosen.
For indexes in the array where it is not possible to return a typed value, the empty sequence is returned instead.
fr:created-dateTime()
[SINCE Orbeon Forms 2016.3]
fr:created-dateTime() as xs:dateTime?
Return the creation date of the current form data as of the last read from the database if available, and the empty sequence otherwise (such as in "new" mode).
fr:dataset()
[SINCE Orbeon Forms 2017.1]
fr:dataset($dataset-name as xs:string) as node()?
Return the root element of the XML document containing the given dataset.
If the dataset does not exist, return the empty sequence.
For more on datasets, see Datasets.
fr:document-id()
fr:document-id() as xs:string
Return the form's document id.
fr:form-name()
fr:form-name() as xs:string
Return the form's form name.
fr:form-title()
[SINCE Orbeon Forms 2018.1]
fr:form-title() as xs:string?
Return the form's title for the current form language.
fr:form-version()
fr:form-version() as xs:integer
Return the form definition's current version. By default, when versioning is not enabled, or in test mode, return 1.
fr:is-design-time()
fr:is-design-time() as xs:boolean
Return whether the form is shown at design time within Form Builder.
This function is particularly useful for XBL components.
fr:is-form-data-saved()
fr:is-form-data-saved() as xs:boolean
Return whether the form data has been saved (including after the set-data-status action was called with a status parameter set to safe).
fr:is-form-data-valid()
fr:is-form-data-valid() as xs:boolean
Return whether the form data is valid, that is the form data does not contain any errors.
fr:is-noscript()
Return whether the form is in noscript mode.
fr:is-noscript() as xs:boolean
NOTE: Starting with Orbeon Forms 2018.1, this always returns false.
fr:is-pe()
[SINCE Orbeon Forms 2018.2]
fr:is-pe() as xs:boolean
Return whether the current version Orbeon Forms is the Professional Edition (PE).
fr:is-readonly-mode()
fr:is-readonly-mode() as xs:boolean
Return whether the current page is in a readonly mode such as view, pdf, or email.
fr:lang()
fr:lang() as xs:string
Return the form's current language.
fr:mode()
fr:mode() as xs:string
Return the Form Runner mode.
fr:modified-dateTime()
[SINCE Orbeon Forms 2016.3]
fr:modified-dateTime() as xs:dateTime?
Return the modification date of the current form data as of the last read from the database if available, and the empty sequence otherwise (such as in "new" mode).
fr:pdf-templates()
[SINCE Orbeon Forms 2018.1]
fr:pdf-templates() as map(xs:string, xs:string?)*
Return the list of section templates associate with the current form definition. The return value is a sequence of map(xs:string, xs:string?), where keys map to values as follows:
path: the path to the PDF template in the persistence layer
name: the name of the PDF template, or the empty sequence if none was provided
lang: the language of the PDF template, or the empty sequence if none was provided
This example shows a dropdown menu which lists the templates with a name:
<xf:select1 xmlns:map="http://www.w3.org/2005/xpath-functions/map">
    <xf:label>PDF templates</xf:label>
    <xf:itemset ref="fr:pdf-templates()[exists(map:get(., 'name'))]">
        <xf:label ref="map:get(., 'name')"/>
        <xf:value ref="map:get(., 'path')"/>
    </xf:itemset>
</xf:select1>
See also PDF templates.
fr:run-process()
fr:run-process-by-name($scope as xs:string, $process as xs:string) as item()?
Run the given process given a scope and process content.
This function returns the empty sequence.
Example:
<xf:action type="xpath">
    fr:run-process('oxf.fr.detail.process', 'set-data-status(status = "safe")')
</xf:action>
fr:run-process-by-name()
fr:run-process-by-name($scope as xs:string, $process as xs:string) as item()?
Run the given process given a scope and process name.
This function returns the empty sequence.
Example:
<xf:action type="xpath">
    fr:run-process-by-name('oxf.fr.detail.process', 'save')
</xf:action>
fr:component-param-value()
[SINCE Orbeon Forms 2018.1]
This function is similar to xxf:component-param-value(), but is designed to be used in XBL components that are expected to run in the context of Form Runner. It searches parameters in this order:
The string value of the given parameter of the current XBL component's bound node, which can be an AVT.
[SINCE Orbeon Forms 2018.2] The current form's metadata instance (see below).   
The value of a property, taking into account the current app/form name. For instance, xxf:component-param-value('theme') called from the fr:recaptcha component uses the value of the oxf.xforms.xbl.fr.recaptcha.theme.*.*, following wildcard rules.
The value of a property without taking into account the current app/form name. For example oxf.xforms.xbl.fr.recaptcha.theme property, as done by xxf:component-param-value().
This allows authors of XBL components:
To replace an existing call to xxf:component-param-value() by fr:component-param-value() while maintaining backward compatibility.
To enable users of the component to have different values for the property by app/form, should they need to.
To still allow the component to be used outside of Form Runner.
The Form Runner metadata instance looks like this:
<xf:instance xxf:readonly="true" id="fr-form-metadata" xxf:exclude-result-prefixes="#all">
    <metadata>
        <application-name>acme</application-name>
        <form-name>order</form-name>
        <title xml:lang="en">ACME Order Form</title>
        <description xml:lang="en"/>
        <xbl>
            <fr:number>
                <grouping-separator>"</grouping-separator>
            </fr:number>
        </xbl>
    </metadata>
</xf:instance>
NOTE: The Form Runner metadata instance is maintained by Form Builder. We do not recommend making changes to that instance.
Wizard functions
fr:is-wizard-body-shown()
[SINCE Orbeon Forms 2016.2]
fr:is-wizard-body-shown() as xs:boolean
Whether the wizard's body is visible.
fr:is-wizard-first-page()
[SINCE Orbeon Forms 2016.3]
fr:is-wizard-first-page() as xs:boolean
Whether the currently-shown wizard page is the first relevant page.
fr:is-wizard-last-page()
[SINCE Orbeon Forms 2016.3]
fr:is-wizard-last-page() as xs:boolean
Whether the currently-shown wizard page is the last relevant page.
fr:is-wizard-toc-shown()
[SINCE Orbeon Forms 2016.2]
fr:is-wizard-toc-shown() as xs:boolean
Whether the wizard's table of content is visible.
fr:wizard-current-page-name()
[SINCE Orbeon Forms 2019.1]
fr:wizard-current-page-name() as xs:string?
Return the name of the current wizard page, or the empty sequence if there is no wizard current page.
The page name corresponds to the section name used in Form Builder.
Authentication functions
fr:can-create()
[SINCE Orbeon Forms 2017.1]
fr:can-create() as xs:boolean
Whether the current user has the create permission for the current app/form name (detail page only).
fr:can-delete()
[SINCE Orbeon Forms 2017.1]
fr:can-delete() as xs:boolean
Whether the current user has the delete permission for the current form data (detail page only).
fr:can-read()
[SINCE Orbeon Forms 2017.1]
fr:can-read() as xs:boolean
Whether the current user has the read permission for the current app/form name (detail page only).
fr:can-update()
[SINCE Orbeon Forms 2017.1]
fr:can-update() as xs:boolean
Whether the current user has the update permission for the current form data (detail page only).
fr:user-ancestor-organizations()
[SINCE Orbeon Forms 2016.3]
fr:user-ancestor-organizations(
    $leaf-org as xs:string
) as xs:string*
Seexxf:user-ancestor-organizations().
fr:user-group()
fr:user-group() as xs:string?
Seexxf:user-group().
fr:user-organizations()
[SINCE Orbeon Forms 2016.3]
fr:user-organizations() as xs:string*
Seexxf:user-organizations().
fr:user-roles()
fr:user-roles() as xs:string*
Seexxf:user-roles().
fr:username()
fr:username() as xs:string?
Seexxf:username().
See also
Blog post: A stable function library for Form Runner​
HTTP functions
Other functions
Last updated last year