[ http://issues.apache.org/jira/browse/COCOON-1286?page=all ]
Ralph Goers updated COCOON-1286:
--------------------------------
Bugzilla Id: (was: 31564)
Component: Blocks: XSP
(was: Blocks: (Undefined))
Description:
Are you using the jpath logicsheet and have been annoyed that you can't access
parents or siblings elements in a for-each loop?
like
<jpath:for-each select="myarray">
<li><jpath:value-of select="/title"> - <jpath:value-of select="."></li>
</jpath:for-each>
won't work because the logicsheet changed the context and /title is not
available.
There is a simple way to fix that, simply iterating over pointers instead of
values. This way one can build contexts that are relative to the current one.
So . and non-absolute paths will still point to the iterated element, but
absolute paths point to the root and siblings etc should work, too.
I wrote that patch a while ago so it is tested and works fine.
---
This patch also adds a new tag to switch the lenient setting of jxpath.
By default it is set to false. If set to true, xpaths that don't point to an
object or a set of them will return null (Instead of that annoying exception).
Saves all the checking if you can accept nulls and are sure there are no typos.
<jpath:set-lenient lenient="true|false">
If the tag contains child elements it will scope the setting for the enclosed
elements, otherwise it is a global setting. You can't nest <jpath:set-lenient>
tags.
gunnar
ps: the diff file does not have the correct path for the filenames as I had to
use the webinterface to get the current 2.1 branch jpath.xsl.
was:
Are you using the jpath logicsheet and have been annoyed that you can't access
parents or siblings elements in a for-each loop?
like
<jpath:for-each select="myarray">
<li><jpath:value-of select="/title"> - <jpath:value-of select="."></li>
</jpath:for-each>
won't work because the logicsheet changed the context and /title is not
available.
There is a simple way to fix that, simply iterating over pointers instead of
values. This way one can build contexts that are relative to the current one.
So . and non-absolute paths will still point to the iterated element, but
absolute paths point to the root and siblings etc should work, too.
I wrote that patch a while ago so it is tested and works fine.
---
This patch also adds a new tag to switch the lenient setting of jxpath.
By default it is set to false. If set to true, xpaths that don't point to an
object or a set of them will return null (Instead of that annoying exception).
Saves all the checking if you can accept nulls and are sure there are no typos.
<jpath:set-lenient lenient="true|false">
If the tag contains child elements it will scope the setting for the enclosed
elements, otherwise it is a global setting. You can't nest <jpath:set-lenient>
tags.
gunnar
ps: the diff file does not have the correct path for the filenames as I had to
use the webinterface to get the current 2.1 branch jpath.xsl.
> [PATCH] XSP - JXPath logicsheet <jxpath:for-each> using relative contexts
> -------------------------------------------------------------------------
>
> Key: COCOON-1286
> URL: http://issues.apache.org/jira/browse/COCOON-1286
> Project: Cocoon
> Type: Improvement
> Components: Blocks: XSP
> Versions: 2.1.8-dev (Current SVN)
> Environment: Operating System: Windows XP
> Platform: PC
> Reporter: Gunnar Brand
> Assignee: Antonio Gallardo
> Priority: Minor
> Attachments: jpath.xsl.diff, jpath.xsl.diff
>
> Are you using the jpath logicsheet and have been annoyed that you can't
> access
> parents or siblings elements in a for-each loop?
> like
> <jpath:for-each select="myarray">
> <li><jpath:value-of select="/title"> - <jpath:value-of select="."></li>
> </jpath:for-each>
> won't work because the logicsheet changed the context and /title is not
> available.
> There is a simple way to fix that, simply iterating over pointers instead of
> values. This way one can build contexts that are relative to the current one.
> So . and non-absolute paths will still point to the iterated element, but
> absolute paths point to the root and siblings etc should work, too.
> I wrote that patch a while ago so it is tested and works fine.
> ---
> This patch also adds a new tag to switch the lenient setting of jxpath.
> By default it is set to false. If set to true, xpaths that don't point to an
> object or a set of them will return null (Instead of that annoying
> exception).
> Saves all the checking if you can accept nulls and are sure there are no
> typos.
> <jpath:set-lenient lenient="true|false">
> If the tag contains child elements it will scope the setting for the enclosed
> elements, otherwise it is a global setting. You can't nest
> <jpath:set-lenient>
> tags.
> gunnar
> ps: the diff file does not have the correct path for the filenames as I had
> to
> use the webinterface to get the current 2.1 branch jpath.xsl.
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see:
http://www.atlassian.com/software/jira
