[Zope] Namespace ?

[Jim Fulton]

Brenton Bills wrote:
> 
> Hi people,
>         I am new to zope and am having a few problems in regard to
> namespaces (I think).
> 
> I am using code similar to the following but I get,
>         Error Type: KeyError,
>         Error value: unique.
> 
> I have created a dtml method with the following code...
> 
> <dtml-let unique="whrandom.random()">
> 
> <dtml-in InsertIntoDB>
> </dtml-in>
> 
> </dtml-let>
> 
> I have a mysql database and the insert statement InsertIntoDB as follows,
> 
> insert into randoms
> (
>    <dtml-var unique>
> )
> 
> I have had a look at the howtos but it still makes it as clear as mud.

SQL methods don't automagically get the namespace from a calling
DTML method passed in. (Maybe they should....)

You could pass the namespace in yourself:

  <dtml-in expr="InsertIntoDB(_)">

or you could pass unique in:

  <dtml-in expr="InsertIntoDB(unique=whrandom.random())">

Note that you currently can't pass a namespace *and* pass
keyword arguments.

Also note that arguments to SQL methods are used *only* if they are
formally named in the SQL arguments list.

Jim

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