Dynamic definition of root in Navigation function
Author: renet
Publication Date: 4/20/2011 11:01
Hello community,
I have the following problem: I want to render
- the complete navigation tree (expansionVisibility=all),
- but only for the selected 1st level node and
- no matter which sub-nodes of that 1st level node are selected (wholePathSelected=1)
Therefore I need to
- either dynamically set the root parameter
- or set the level that the navigation should start at (meaning: show only level 2+ nodes only under the selected 1st level node).
Does the Navigation function offer either of these possibilities? I didn't find anything about this in the documentation/help.
Right now my Navigation function looks as follows:
<CMS_FUNCTION name="Navigation" resultname="fr_dtn">
<CMS_PARAM name="expansionVisibility" value="all"/>
<CMS_PARAM name="wholePathSelected" value="1"/>
<CMS_PARAM name="suppressEmptyFolders" value="1" />
<CMS_ARRAY_PARAM name="innerBeginHTML">
<CMS_ARRAY_ELEMENT index="1..9"><![CDATA[<ul>]]></CMS_ARRAY_ELEMENT>
</CMS_ARRAY_PARAM>
<CMS_ARRAY_PARAM name="innerEndHTML">
<CMS_ARRAY_ELEMENT index="1..9"><![CDATA[</ul>]]></CMS_ARRAY_ELEMENT>
</CMS_ARRAY_PARAM>
<CMS_ARRAY_PARAM name="endHTML">
<CMS_ARRAY_ELEMENT index="1..9"><![CDATA[</li>]]></CMS_ARRAY_ELEMENT>
</CMS_ARRAY_PARAM>
<CMS_ARRAY_PARAM name="unselectedHTML">
<CMS_ARRAY_ELEMENT index="1..9">
<![CDATA[
...
]]>
</CMS_ARRAY_ELEMENT>
</CMS_ARRAY_PARAM>
<CMS_ARRAY_PARAM name="selectedHTML">
<CMS_ARRAY_ELEMENT index="1..9">
<![CDATA[
...
]]>
</CMS_ARRAY_ELEMENT>
</CMS_ARRAY_PARAM>
</CMS_FUNCTION>
But this way the sub-nodes of all 1st level nodes that are not selected will be rendered, as well.
My only solution (hopefully) for this problem seems to be to add something like
<CMS_ARRAY_PARAM name="unselectedHTML">
<CMS_ARRAY_ELEMENT index="0">
<![CDATA[$CMS_SET(1st_level_selected,false)$]]>
</CMS_ARRAY_ELEMENT>
<CMS_ARRAY_ELEMENT index="1..9">
<![CDATA[
$CMS_IF(1st_level_selected)$
...
$CMS_END_IF$
]]>
</CMS_ARRAY_ELEMENT>
</CMS_ARRAY_PARAM>
<CMS_ARRAY_PARAM name="selectedHTML">
<CMS_ARRAY_ELEMENT index="0">
<![CDATA[$CMS_SET(1st_level_selected,true)$]]>
</CMS_ARRAY_ELEMENT>
<CMS_ARRAY_ELEMENT index="1..9">
<![CDATA[
$CMS_IF(1st_level_selected)$
...
$CMS_END_IF$
]]>
</CMS_ARRAY_ELEMENT>
</CMS_ARRAY_PARAM>
Is this the only possible solution? Thank you for your replies in advance!
Regards,
René Schubert
Tags: dynamic, navigation, root
-
Author: hoebbel - 4/27/2011 12:48
Hello Mr. Schubert,
René Schubert schrieb:
I have the following problem: I want to render
- the complete navigation tree (expansionVisibility=all),- but only for the selected 1st level node and
- no matter which sub-nodes of that 1st level node are selected (wholePathSelected=1)
I would do it using two navigation functions.
The first function is to dynamically define the start folder:
<CMS_FUNCTION name="Navigation" resultname="fr_pt_getrootfolder">
<CMS_PARAM name="expansionVisibility" value="purepath"/>
<CMS_PARAM name="wholePathSelected" value="1"/>
<CMS_ARRAY_PARAM name="selectedHTML">
<CMS_ARRAY_ELEMENT index="0">$CMS_VALUE(#nav.folder.referenceName)$</CMS_ARRAY_ELEMENT>
</CMS_ARRAY_PARAM>
</CMS_FUNCTION>
The second one is for the output itself:
<CMS_FUNCTION name="Navigation" resultname="fr_sc_navigation">
<CMS_VALUE_PARAM name="root" value="fr_pt_getrootfolder.toString()"/>
<CMS_PARAM name="expansionVisibility" value="all"/>
<CMS_PARAM name="wholePathSelected" value="1"/>
<CMS_ARRAY_PARAM name="selectedHTML">
<CMS_ARRAY_ELEMENT><![CDATA[-"$CMS_VALUE(#nav.id + " " + #nav.label)$"-<br>]]></CMS_ARRAY_ELEMENT>
</CMS_ARRAY_PARAM>
<CMS_ARRAY_PARAM name="unselectedHTML">
<CMS_ARRAY_ELEMENT><![CDATA["$CMS_VALUE(#nav.id + " " + #nav.label)$"<br>]]></CMS_ARRAY_ELEMENT>
</CMS_ARRAY_PARAM>
</CMS_FUNCTION>
But you may get problems, if you use startfolders or if you hide menu entries from the navigation.
Best regards,
Holger Höbbel
0 -
Author: baginski - 8/3/2012 14:43
Hi,
I have one issue with this solution. If a page is not referenced in the Sitestore, it causes a preview error (because the first function returns an empty String:
(header function 'Navigation', resultname = 'fr_detailed_navigation' at 18, 2): at 18, 2: invalid value for parameter 'root', invalid reference '')
Interesting: even if the function is not called the function (remove the CMS_VALUE(fr_detailed_navigation) from the template) the error still remains - so I could not do any workarounds wih if-statements to repress the error message..
Any Ideas ?
Greetings,
Michael
0 -
Author: hoebbel - 8/3/2012 15:01
Hello Michael,
if a page is not referred within the sitestore, you cannot determine the first level folder, since there is none.
That the error remains, even if the function is not called, is probably due to a "preexecution" of the function [it is executed before the content is created]
A possible Workaround (not tested) could be this:
<CMS_VALUE_PARAM name='root' value='if(fr_pt_getrootfolder.isSet,fr_pt_getrootfolder.toString(),"pagefolder:root"'/>You can use any pagefolder name (root = sitestore root)
Attention: You have to use two types of ticks here (' and ")
If you just want to avoid the error, try to transfer the two function (and their output) to a format template and check, if the page is referred within the sitestore before calling the formattemplate.
Disadvantage: You have to put the whole output within this format template, since it has a lower generation context, so that the there defined variables are not available within the page/section template
Best regards,
Holger
0 -
Author: baginski - 8/3/2012 15:37
Hi Holger,
thanks!
the first way did not work properly (error was gone, but nothing has been rendered) - the second possibily works fine for me! :smileycool:
Greetings,
Michael
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