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<DIV><FONT size=2>You may need something more sophisticated than ZClasses.
Have a look a ZCatalog in the ZopeBook. We use them a lot with great
success.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2>Regarding the 'Error Value: globla name Animal is not
defined...</FONT></DIV>
<DIV><FONT size=2>Go to where your ZClass is defined (in the ZMI under
Control_Panel/Products/YourProductName) and click on your animal zclass. Then
click on the 'Basic' tab. The entry under 'Meta Type' is what objectValues
will be looking for (make sure spelling and case match).</FONT></DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV><FONT size=2>Jonathan</FONT></DIV>
<BLOCKQUOTE dir=ltr
style="BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A href="mailto:beninisrael@hotmail.com" title=beninisrael@hotmail.com>Ben</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A href="mailto:toolkit@magma.ca"
title=toolkit@magma.ca>Small Business Services</A> ; <A
href="mailto:zope@zope.org" title=zope@zope.org>zope@zope.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> December 17, 2003 5:51 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Zope] (newbie)-Calling in
Multiple Selection from a Z-Class</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks for you prompt reply.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I tried calling in the meta type directly, but
get:</FONT></DIV>
<DIV><STRONG>Error Value: global name 'Animal' is not
defined</STRONG><BR><FONT face=Arial size=2>which is why I am using a slight
work-around.</FONT></DIV>
<DIV><FONT face=Arial size=2>For the purpose of this z-class, it is necessary
for me to use a multiple selection list, which I believe will not work
properly with the <FONT face="Times New Roman">hasProperty function . Is there
any other way to do it? Possibly iterating through the number of values which
each instance holds for the multiple list? Am a bit stumped on the syntax
though!</FONT></FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Thanks,</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Ben</FONT></DIV>
<BLOCKQUOTE dir=ltr
style="BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A href="mailto:toolkit@magma.ca" title=toolkit@magma.ca>Small Business
Services</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
href="mailto:beninisrael@hotmail.com" title=beninisrael@hotmail.com>Ben</A>
; <A href="mailto:zope@zope.org" title=zope@zope.org>zope@zope.org</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, December 18, 2003 12:34
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Zope] (newbie)-Calling in
Multiple Selection from a Z-Class</DIV>
<DIV><FONT face=Arial size=2></FONT><BR></DIV>
<DIV><FONT size=2>If you used property fields to implement the 'hooves' (and
other) attributes, then you can use the hasProperty function to test if a
given instance has 'hooves'</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2>eg. <dtml-if
"animalinstance.hasProperty('hooves')"></FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2>Look in the API section of the Zope Book for more
info.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2>P.S. You can also check for meta types
directly:</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2> <dtml-in
"objectValues('Animal')"></FONT></DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV><FONT size=2>HTH</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=2>Jonathan</FONT></DIV>
<DIV> </DIV>
<DIV> </DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A href="mailto:beninisrael@hotmail.com"
title=beninisrael@hotmail.com>Ben</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A href="mailto:zope@zope.org"
title=zope@zope.org>zope@zope.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> December 17, 2003 5:13 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [Zope] (newbie)-Calling in
Multiple Selection from a Z-Class</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2># I have a Z-Class called animals with a
multiple selection for animal_catagories</FONT></DIV>
<DIV><FONT face=Arial size=2># I call in each member of the
Z-class:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2><dtml-with AnimalDirectory><BR>
<dtml-in expr="objectValues()"><BR> <dtml-if
"meta_type==' Animal"><BR></FONT></DIV>
<DIV><FONT face=Arial size=2># For testing:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2><dtml-var id> has <dtml-var
animal_catagories></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2># Which gives me "Horse is
['hooved','brown','horsey'] as these are the values that I have given to
the horse instance</FONT></DIV>
<DIV><FONT face=Arial size=2># I then have:</FONT></DIV><FONT face=Arial
size=2>
<DIV><BR> <dtml-if
expr="REQUEST['hooved'] ==
_['animal_categories'][0]"><BR>
<dtml-var id> is a <dtml-var
hooved> animal<BR>
</dtml-if><BR></FONT> </DIV>
<DIV><FONT face=Arial size=2># Which gives me Horse is a hooved
animal. Which is great!</FONT></DIV>
<DIV><FONT face=Arial size=2># Except this is only checking for the first
value. If hooved were the second value chosen in the multiple select list,
then this would not show. This is obvious because of the [0]</FONT></DIV>
<DIV><FONT face=Arial size=2># What I am trying to do is to compare hooved
with each of the animal categories to see if it has been chosen. If I use
a <dtml-in animal_catagories> with or without ''s, then it
tells me that I can't call in a string. </FONT></DIV>
<DIV><FONT face=Arial size=2># Could anyone please help me, or point me in
the right direction? </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks,</FONT></DIV>
<DIV><FONT face=Arial size=2><BR>Ben</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
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