Here is a sort of hacky way to do that, using xdmp:value. The key is
that you need to bind some XML to a variable so you can run XPath on it.
xquery version "1.0-ml";
let $content :=
<books selector="temp">
<book>
<title>C &DS</title>
<price>100</price>
<volume>1</volume>
</book>
<book>
<title>AI </title>
<price>150</price>
<volume>3</volume>
</book>
</books>
let $content2 :=
<books selector="{xdmp:value("$content//title")}">
<book>
<title>C &DS</title>
<price>100</price>
<volume>1</volume>
</book>
<book>
<title>AI </title>
<price>150</price>
<volume>3</volume>
</book>
</books>
return $content2
=>
<books selector="C &DS AI ">
<book>
<title>C &DS</title>
<price>100</price>
<volume>1</volume>
</book>
<book>
<title>AI </title>
<price>150</price>
<volume>3</volume>
</book>
</books>
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
NvoiceMarklogic
Sent: Thursday, December 04, 2008 3:10 AM
To: [email protected]
Subject: : RE: [MarkLogic Dev General] i have dobt in xpath
Hi,
I did try using xdmp:eval() and xdmp:value() , also xdmp:unpath() but
all these functions return the data from the whole database, but i
need the values from the data stored in a variable.
Eg:
let $content :="<books selector="//title"><book><title>C
&DS</title><price>100</price><volume>1</volume></book>
<book><title>AI
</title><price>150</price><volume>3</volume></book>
</books>"
The element books contains an attribute selector which specifies the
xpath.I need to get this xpath expression from selector attribute and
then get the respective nodes from $content based on Xpath.
(The $content value is not stored in database, as i need to modify the
XML and then store it.)
Thank you,
Date: Wed, 3 Dec 2008 22:55:48 -0800
From: "Danny Sokolsky" <[EMAIL PROTECTED]>
Subject: RE: [MarkLogic Dev General] i have d
To: "General Mark Logic Developer Discussion"
<[email protected]>
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset="us-ascii"
If you just want the title nodes from the database, the following query
will do that:
/books/book/title
You cannot bind an XPath to a variable--you can bind the results of an
XPath, but not the XPath itself. If you need to use your string
variable as an XPath, you can use xdmp:eval or xdmp:value to construct a
new query from the string.
-Danny
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
NvoiceMarklogic
Sent: Wednesday, December 03, 2008 9:15 PM
To: [email protected]
Subject: [MarkLogic Dev General] i have dobt in xpath
Hi All,
I have a doubt in XPTH.
i have xml content in a variable and xpath is also in a node.
how i can get nodes form content using the xpath varaible.
can any one suggest me.
ex:
let $content :="<books><book><title>C
&DS</title><price>100</price><volume>1</volume></book>
<book><title>AI
</title><price>150</price><volume>3</volume></book>
</books>"
let $path:="/books/book/title"
how i can get title node from content, can u help meout.
Thank you.
Note: i have near 10 xml files in my database with same structure.
regards
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