Re: [basex-talk] Server-side XQuery scripts understanding their "context"
Hi Luke,
That’s a classical recommendation for RESTXQ, which gives you a more
powerful and flexible framework for writing custom REST APIs. Did you
already have a look at it?
Best,
Christian
On Wed, Jan 22, 2020 at 2:33 AM ERRINGTON Luke wrote:
>
> Hi Christian,
>
> Thanks for that. That's exactly what I was hoping for (and I thought I tried
> that, but must have done something wrong).
>
> Now for the trickier part of the problem:
>
> Let's say that I want to add a file to the database, but I want to do it
> through a server-side XQuery, so that it can validate, etc. Can I do this
> using the context of the call, or do I have to pass the name of the database
> as an argument?
>
> e.g.
>
> db:add("Test", , "doc.xml") (: Works, but has hardcoded the database :)
>
> ==8<=
>
> let $db := request:parameter('param1')
> return
> db:add($db, , "doc.xml") (: Works, but had to pass the database name as a
> parameter :)
>
> ==8<=
>
> db:add(., , "doc.xml") (: Doesn't work, and I didn't expect it to, but
> would be ideal :)
>
> Is there any way to achieve this? There isn't anyway of converting the
> current context into an expression containing the database (and path) is
> there?
>
> Thanks,
> Luke
>
> -Original Message-----
> From: Christian Grün
> Sent: Tuesday, 21 January 2020 6:38 PM
> To: ERRINGTON Luke
> Cc: basex-talk@mailman.uni-konstanz.de
> Subject: Re: [basex-talk] Server-side XQuery scripts understanding their
> "context"
>
> Hi Luke,
>
> > However, when I execute an XQuery I would like it to run on a particular
> > database. Is there anyway to achieve this without passing the database as
> > an argument to the query?
>
> If you address a database in your URL, it will be bound to the context of
> your query, which can be obtained via a simple dot (.). For example, run the
> following query to get the number of documents in your 'Test' database:
>
> http://localhost:8984/rest/Test?query=count(.)
>
> I have added another example in our documentation [1]. The given query can
> also be written to a file and evaluated with 'run'.
>
> Hope this helps,
> Christian
>
> [1] http://docs.basex.org/wiki/REST#GET_Method
Re: [basex-talk] Server-side XQuery scripts understanding their "context"
Hi Christian,
Thanks for that. That's exactly what I was hoping for (and I thought I tried
that, but must have done something wrong).
Now for the trickier part of the problem:
Let's say that I want to add a file to the database, but I want to do it
through a server-side XQuery, so that it can validate, etc. Can I do this using
the context of the call, or do I have to pass the name of the database as an
argument?
e.g.
db:add("Test", , "doc.xml") (: Works, but has hardcoded the database :)
==8<=
let $db := request:parameter('param1')
return
db:add($db, , "doc.xml") (: Works, but had to pass the database name as a
parameter :)
==8<=
db:add(., , "doc.xml") (: Doesn't work, and I didn't expect it to, but
would be ideal :)
Is there any way to achieve this? There isn't anyway of converting the current
context into an expression containing the database (and path) is there?
Thanks,
Luke
-Original Message-
From: Christian Grün
Sent: Tuesday, 21 January 2020 6:38 PM
To: ERRINGTON Luke
Cc: basex-talk@mailman.uni-konstanz.de
Subject: Re: [basex-talk] Server-side XQuery scripts understanding their
"context"
Hi Luke,
> However, when I execute an XQuery I would like it to run on a particular
> database. Is there anyway to achieve this without passing the database as an
> argument to the query?
If you address a database in your URL, it will be bound to the context of your
query, which can be obtained via a simple dot (.). For example, run the
following query to get the number of documents in your 'Test' database:
http://localhost:8984/rest/Test?query=count(.)
I have added another example in our documentation [1]. The given query can also
be written to a file and evaluated with 'run'.
Hope this helps,
Christian
[1] http://docs.basex.org/wiki/REST#GET_Method
Re: [basex-talk] Server-side XQuery scripts understanding their "context"
Hi Luke, > However, when I execute an XQuery I would like it to run on a particular > database. Is there anyway to achieve this without passing the database as an > argument to the query? If you address a database in your URL, it will be bound to the context of your query, which can be obtained via a simple dot (.). For example, run the following query to get the number of documents in your 'Test' database: http://localhost:8984/rest/Test?query=count(.) I have added another example in our documentation [1]. The given query can also be written to a file and evaluated with 'run'. Hope this helps, Christian [1] http://docs.basex.org/wiki/REST#GET_Method
[basex-talk] Server-side XQuery scripts understanding their "context"
Hi all, I'm trying to use the REST API to call server-side XQuery scripts. As I understand it, these scripts are not part of a database, but reside in the filesystem where BaseX is "installed" (or where RESTPATH points to). However, when I execute an XQuery I would like it to run on a particular database. Is there anyway to achieve this without passing the database as an argument to the query? For example, http://localhost:8984/rest?run=find.xq http://localhost:8984/rest/Test?run=find.xq ... both execute the same query, and that query needs to open a database to do its searching, so currently the database to open is hard-coded. It would be nice if the query could work out what database or "collection" was its context and automatically use that. Additionally, if I do http://localhost:8984/rest?run=Test/find.xq ... then I run the query that is in the Test folder, but this still does not have any context and so still needs to know to open the Test database. Is there a way to achieve this without having to pass the name of the database to every XQuery? Or am I not understanding things and is there a better way to do this sort of thing? Thanks, Luke
