[Zope] checking for elements in a list

[Christopher Rivard]

Thanks Peter,

The conditional within the dtml did the trick.
This is a continuation of this issue (a bit cumbersome):

http://groups.yahoo.com/group/zope/message/150345

The solution that I have come to is to simply set a cookie and serve up 
the correct fields based on the cookie:

<dtml-if "17 in list_map_dir_id and 21 not in list_map_dir_id">
<dtml-call "RESPONSE.setCookie(list_type,'lodge')">
<dtml-elif "21 in list_map_dir_id and 17 not in list_map_dir_id">
<dtml-call "RESPONSE.setCookie(list_type,'resto')">
<dtml-elif "21 in list_map_dir_id and 17 in list_map_dir_id">
<dtml-call "RESPONSE.setCookie(list_type,'restolodge')">
<dtml-else>
<dtml-call "RESPONSE.setCookie(list_type,'other')">
</dtml-if>

<dtml-in insert_listing1_sql>
id: <dtml-var newid>
<dtml-call "REQUEST.set('list_map_list_id', newid)">
</dtml-in>
<dtml-call insert_listing_map_sql>
<dtml-call 
"RESPONSE.redirect('add_listing2?list_id=%s'%(REQUEST['list_map_list_id']))">


add_listing2 is the form that displays restaurant specific fields 
(price, cc's accepted) or lodge (type, price range, internet access) or 
both...those tricky motel/restaurants in rural NM...

It seems that if I try this after the list is inserted, it comes out of 
MySQL as a string, not integer and therefore I could not iterate to 
check membership in the list.

I am sure there are more elegant ways to do this  - the client wanted 
the data in a RDBMS for portability....yah yah yah....

Thanks for you help!
Chris

Christopher Rivard
Clearwired Web Services

5345 Wyoming NE Suite 200C
Albuquerque, NM 87109

office/ 505.217.3505
mobile/ 505.301.4010
toll-free/ 866.430.2832
fax/ 505.217.3506

e/ chris at clearwired.com
w/ www.clearwired.com




Peter Bengtsson wrote:

>On 12/4/05, J Cameron Cooper <zope-l at jcameroncooper.com> wrote:
>  
>
>>Christopher Rivard wrote:
>>    
>>
>>>Hello,
>>>
>>>I'm am trying to check for the membership of items in a list and think
>>>I'm missing something.
>>>How is this done in dtml?
>>>
>>>List allids: [15,16,17,18]
>>>
>>>Check for multiple items in the list:
>>>
>>><dtml-in allids prefix="loop">
>>><dtml-if expr="loop_item == 17">
>>>something
>>><dtml-elif expr="loop_item == 17 and loop_item != 18">
>>>doesn't work
>>></dtml-if>
>>></dtml-in>
>>>
>>>The goal is to check for combinations:
>>>17 and not 18
>>>18 only
>>>17 only
>>>17 and 15
>>>18 and 16
>>>...combinations.
>>>
>>>I don't think that I really want to loop through the list, just want to
>>>check membership in the list.
>>>      
>>>
>>In Python, you can simply ask::
>>
>>   17 in allids
>>
>>   18 not in allids
>>
>>and so forth as boolean expressions.
>>
>>    
>>
>He can do this in DTML too.
><dtml-if "17 in allids">
>  you're here!
></dtml-if>
>
>  
>
>>Just make sure that the elements of the list you're getting are what you
>>think they are. If you ask about the integer 17 and the list actually
>>has a string "17" they won't match. You can either adjust what you test
>>or use something like the 'int' function to "cast".
>>
>>                --jcc
>>--
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>
>
>--
>Peter Bengtsson,
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