Hi Håvard,
That's not what should happen!
Could you turn that into a complete, minimal example and create a JIRA
please?
Andy
On 07/01/16 09:09, Håvard Mikkelsen Ottestad wrote:
Hi Andy,
I tried the QueryBuilder, but it doesn’t work for update queries.
The UpdateTransformOps looks good, however it seems to be removing a filter
from my query. The filter is used to stop stop duplicate usernames.
##############
### BEFORE ###
##############
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX : <http://example.com/metadata/>
INSERT {
GRAPH <http://example.com/usersGraph/> {
<http://example.com/user_930cd3ca-aae0-4201-8af4-c7af00b1e2cd>
foaf:accountName ?username .
<http://example.com/user_930cd3ca-aae0-4201-8af4-c7af00b1e2cd>
:role ?role .
<http://example.com/user_930cd3ca-aae0-4201-8af4-c7af00b1e2cd>
:password ?password .
<http://example.com/user_930cd3ca-aae0-4201-8af4-c7af00b1e2cd>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type> :User .
}
}
WHERE{
FILTER ( ! EXISTS { ?a foaf:accountName ?username } ) #### THIS FILTER
GETS REMOVED WHEN I TRANSFORM
}
#############
### AFTER ###
#############
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX : <http://example.com/metadata/>
INSERT {
GRAPH <http://example.com/usersGraph/> {
<http://example.com/user_930cd3ca-aae0-4201-8af4-c7af00b1e2cd>
foaf:accountName "testUserName" .
<http://example.com/user_930cd3ca-aae0-4201-8af4-c7af00b1e2cd> :role
"" .
<http://example.com/user_930cd3ca-aae0-4201-8af4-c7af00b1e2cd> :password
"" .
<http://example.com/user_930cd3ca-aae0-4201-8af4-c7af00b1e2cd>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type> :User .
}
}
WHERE
{} #### THE FILTER HERE IS MISSING !!!
Håvard
On 06/01/16 20:18, "Andy Seaborne" <a...@apache.org> wrote:
Is it possible to do something similar when running these queries against
Fuseki over HTTP?
Håvard,
What is the starting point? A string as the template or an
already-parsed query or update? Or building the structure each time?
1:: If it is a string, parameterized sparql strings are the way to go
and it protects against injected strings for
2:: There is also the QueryBuilder
https://jena.apache.org/documentation/extras/querybuilder/
that Claude can talk about.
Last time we had a discussion about this
http://mail-archives.apache.org/mod_mbox/jena-dev/201506.mbox/%3C558FC784.9060407%40apache.org%3E
3:: I put in the machinery for syntax rewriting: it does not have a
QuerySolution based interface:
UpdateTransformOps / QueryTransformOps
It would be good to know the details here of your use case: do you only
want to inject values for specific parameters, not partial patterns?
It would help use further understand the different alternatives and
workflows.
Andy
