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<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>
<P>
<HR>
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