util:import-module?

[geiser ch.]

Hi all
I was looking for possibilities to be more dynamic in the way modules are loaded, and was happy to see that there was the util:import-module function for this.
I am however unsuccessful in my attempts to run something basic (under version 1.2.0):

(:Try to dynamicaly load modules:)
let $a:=util:import-module ( "http://www.e-smile.org/header" ,"header", "modules/header.xqm")

returns the error:
Error checking function parameter 1 in call util:import-module(untyped-value-check[xs:anyURI, "http://www.e-smile.org/header"], "header", untyped-value-check[xs:anyURI, "modules/header.xqm"]): FORG0001: xs:string(http://www.e-smile.org/header) is not a sub-type of xs:anyURI [at line 89, column 9]

As I new to eXist, there might be something stupid I am missing...
Is there somebody who uses this function with success?

Best regards
Christophe

[Adam Retter-3]

Afraid so,

The hint is in the error message - xs:string is not a sub-type of
xs:anyURI - the function expects URI's for parameters 1 and 3 as
stated in the function documentation.

Try this instead -

et $a:=util:import-module (xs:anyURI("http://www.e-smile.org/header") ,"header",
xs:anyURI("modules/header.xqm"))

2008/7/3 geiser ch. <christophe.geiser@...>:

>
> Hi all
> I was looking for possibilities to be more dynamic in the way modules are
> loaded, and was happy to see that there was the util:import-module function
> for this.
> I am however unsuccessful in my attempts to run something basic (under
> version 1.2.0):
>
> (:Try to dynamicaly load modules:)
> let $a:=util:import-module ( "http://www.e-smile.org/header" ,"header",
> "modules/header.xqm")
>
> returns the error:
> Error checking function parameter 1 in call
> util:import-module(untyped-value-check[xs:anyURI,
> "http://www.e-smile.org/header"], "header", untyped-value-check[xs:anyURI,
> "modules/header.xqm"]): FORG0001: xs:string(http://www.e-smile.org/header)
> is not a sub-type of xs:anyURI [at line 89, column 9]
>
> As I new to eXist, there might be something stupid I am missing...
> Is there somebody who uses this function with success?
>
> Best regards
> Christophe
>
> --
> View this message in context: http://www.nabble.com/util%3Aimport-module--tp18256003p18256003.html
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>
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--
Adam Retter

eXist Developer
{ England }
adam@...
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[geiser ch.]

Thank you Adam
Promise, I'll try to be better as fast as I can...
I am however still kind of stuck with this: I can't dynamically associate the prefix with the namespace.

In more detail:

I have one function that load the module in the prologue. It looks like:
  declare function index:load-module()
  {
  util:import-module (xs:anyURI("http://www.e-Smile.org/header") ,"header",  xs:anyURI("modules/header.xqm"))
  };

In the body, there is a call to this function followed by a call to another function in the header.xqm module:
       {index:load-module()}
       {header:info-header()}

that return the error: "XPST0081: No namespace defined for prefix header"

Now, the function util:import-module seem to work. Or at least, it cries when I refer to a module that does not exist or have different namespace in the .xqm file and the first parameter.
I tried a lot of variants of this, again without success (have the header:info-header() in the index:load-module() function, load the module in the prologue without a function, insert the "util:import-module ..." statement in the body,...)

One strange thing though is that if I have an error in my index:load-module() function (e.g. refer to a .xqm file that does not exist), the error returned by the xquery is the same XPST0081: No namspace....
To make the problem with the index:load-module() appear (e.g. source for module modules/headerww.xqm not found in database), I first need to remove the line  {header:info-header()} from the body

Sorry again if this is something stupid simple ...
Best regard
Christophe

Adam Retter-3 wrote:

Afraid so,

The hint is in the error message - xs:string is not a sub-type of
xs:anyURI - the function expects URI's for parameters 1 and 3 as
stated in the function documentation.

Try this instead -

et $a:=util:import-module (xs:anyURI("http://www.e-smile.org/header") ,"header",
xs:anyURI("modules/header.xqm"))

2008/7/3 geiser ch. <[e-mail]>:
>
> Hi all
> I was looking for possibilities to be more dynamic in the way modules are
> loaded, and was happy to see that there was the util:import-module function
> for this.
> I am however unsuccessful in my attempts to run something basic (under
> version 1.2.0):
>
> (:Try to dynamicaly load modules:)
> let $a:=util:import-module ( "http://www.e-smile.org/header" ,"header",
> "modules/header.xqm")
>
> returns the error:
> Error checking function parameter 1 in call
> util:import-module(untyped-value-check[xs:anyURI,
> "http://www.e-smile.org/header"], "header", untyped-value-check[xs:anyURI,
> "modules/header.xqm"]): FORG0001: xs:string(http://www.e-smile.org/header)
> is not a sub-type of xs:anyURI [at line 89, column 9]
>
> As I new to eXist, there might be something stupid I am missing...
> Is there somebody who uses this function with success?
>
> Best regards
> Christophe