Hello,
I am toying around with BaseX 8.0.1 (beta 161c4fd) and it looks like there is a regression from BaseX 7.9.
In BaseX 7.9 I could issue the following POST query via the REST interface.
<query xmlns="http://basex.org/rest"> <text>...</text> <parameter name='wrap' value='yes'/> </query>
Now, the same query raises an exception in the server:
org.basex.http.HTTPException: Unknown parameter: 'wrap'. at org.basex.http.HTTPCode.get(HTTPCode.java:55) at org.basex.http.rest.RESTPost.get(RESTPost.java:65) at org.basex.http.rest.RESTServlet.code(RESTServlet.java:43)
Has something been changed in the way REST requests are processed? What is the proper way in 8.0.x to wrap results?
Regards,
-- Gioele Barabucci gioele@svario.it
Am 18.02.2015 um 10:41 schrieb Gioele Barabucci:
Hello,
I am toying around with BaseX 8.0.1 (beta 161c4fd) and it looks like there is a regression from BaseX 7.9.
[...]
Has something been changed in the way REST requests are processed? What is the proper way in 8.0.x to wrap results?
It looks like support for wrapping results has been removed recently in this commit in favour of a new "adaptive" serialization method.
https://github.com/BaseXdb/basex/commit/7619d16cc611f4f0ccd2e77e3f12322a263c...
Given that in my use-case (uncontrolled user queries [1]) I need each result to be wrapped, could someone suggest a reliable workaround?
[1] https://github.com/gioele/xpathquery/blob/master/lib/xpathquery/basex.rb#L42
-- Gioele Barabucci gioele@svario.it
Hi Gioele,
Good to hear that the query is evaluated faster now.
It looks like support for wrapping results has been removed recently [...]
Exactly, the wrap parameter was removed. The reason was that our wrapping mechanism never really fit well together with the existing serialization parameters (unless the default parameters were used).
Given that in my use-case (uncontrolled user queries [1]) I need each result to be wrapped, could someone suggest a reliable workaround?
The easiest way out is to wrap your results via XQuery. If your query string is "/a/b/c", you could e.g. rewrite it to:
( /a/b/c ) ! element wrap { . }
Cheers, Christian
Am 18.02.2015 um 11:41 schrieb Christian Grün:
The easiest way out is to wrap your results via XQuery. If your query string is "/a/b/c", you could e.g. rewrite it to:
( /a/b/c ) ! element wrap { . }
Thank you for the suggestion.
My current solution looks like this:
declare namespace basex='http://basex.org/rest';
let $results := ( QUERY ) ! element basex:result { . } return basex:results{$results}</basex:results>
This simulates well enough the wrapped results as returned by BaseX 7.9.
Regards,
-- Gioele Barabucci gioele@svario.it
basex-talk@mailman.uni-konstanz.de
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Christian Grün -
Gioele Barabucci