[Zope] Its nope with zope , parameter prob remains

[Cliff Ford]

I suggest a different approach to this problem. Instead of priming the
option lists in a page template try the following:

1. put only <option value="selectdistrict" selected> in the select lists.

2. put the data in Javascript arrays:

districts = new Array("district1", "district2")
districts["district1"].users=new Array("UserName1", "Username2"),
districts["district2"].users=new Array("UserName3", "Username4")

3. Use onLoad to prime the districts options (use a function to add 
options in districts array) and onClick to change the Username options.

Some people might suggest that sending a list of usernames is a bad
idea. Leaving that bit out would save you a lot of work and avoid the
accessibility issue with onClick.

Cliff

P.S. I sent this earlier today to the original sender and forgot to cc 
to zope. The original bounced with this message:
TO:<buddha_2001 at rediffmail.com>:
     host mail2.rediffmail.com [203.199.83.4]: 553 sorry, your envelope 
sender is in my badmailfrom list (#5.7.1)

Wonder what I have done to get into a badmailfrom list!

prabuddha ray wrote:
> Ya u got me this time abzlutli but i'm jus not getting it.
> looks like there is something else.
> the define code dint work.i'm still getting the same error.
> 
>  Error Type
> KeyError
> Error Value
> 'districtname'
> 
> I'm attaching the ZPT doc n the ZSQL method getDistrictUser is given below.
> 
> argument : distname
> sql :select distinct(username) from c_userdet c,c_district d
> where d.district_name=<dtml-sqlvar distname type="string">
> and c.district_code=d.district_code
> order by username
> 
> Since it giving error for districtname. duz dat mean its not finding it
> in the pyhton stmt :
> <div tal:repeat="user 
> python:context.getDistrictUser(distname=request.form['districtname'])">
> 
> Hope i'nt getting over u.
> 
> 
> 
> 
> On Fri, 11 Mar 2005 Hong Yuan wrote :
> 
>> So you are determining the option value of a 2nd dropdown list from 
>> the input of the 1st. Then it is obvious that when the page is frist 
>> loaded, the form variable 'districtname' is not set yet, because it is 
>> set in the form, right?
>>
>> When this page is first loaded, you maybe want to provide a default 
>> value for 'districtname'. I guess this is what you meant.
>>
>> In that case, you may want to test the existence of 
>> request/form/districtname, and if the variable is not there, use a 
>> default value for it. One way to do so is:
>>
>> <div tal:define="distname request/form/districtname | python:'some 
>> value'"
>>     tal:repeat="user 
>> python:context.getDistrictUser(districtname=distname)">
>> ...
>>
>> this way you make sure 'distname' has some meaningful value before it 
>> is used as a parameter of the ZSQL method.
>>
>>
> 
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