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David H wrote:
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Paul Winkler wrote:
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<pre wrap="">On Wed, Dec 14, 2005 at 06:06:21PM +1300, Cameron Beattie wrote:
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<pre wrap="">I am trying to get my head around representing a list in a page template.
Assume the following list:
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<pre wrap="">m
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<pre wrap="">[[61282125371L, 1, 6, 0], [61282125379L, 1, 6, 0], [61282825240L, 6, 6, 0],
[61282125378L, 1, 6, 0], [61282125374L, 1, 6, 0]
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<pre wrap="">m[0]
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<pre wrap="">[61282125371L, 1, 6, 0]
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<pre wrap="">m[0][0]
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<pre wrap="">61282125371L
i.e. m is a list where each member is itself a list.
How do I get a page template to render a particular item? Assume a function
getem returns the list.
<tal:block repeat="m python:here.getem()">
<td tal:repeat="single m" tal:content="single"></td>
This code will produce four columns and five rows, with each populated by
the list members. But what if I only want the first and third members in
each case i.e. 2 columns and five rows?
I thought it would be something like tal:content="python:single[0]" but
that gives me an unsubscriptable object error.
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That's because, in your example, each time through the loop,
single is an int. Try indexing m instead.
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I think all thats needed is a tal:condition (he wants to filter out
rows)<br>
<br>
1)<span tal:define="res python: context.pyTest();" <--- returns
list of lists like [[61282125371L, 1, 6, 0], [61282125379L, 1, 6, 0],
[61282825240L, 6, 6, 0]] tal:repeat="r1 res"><br>
3) <tal:span tal:repeat = "r2 r1" <br>
4) tal:condition="python: repeat.r2.number in (1,2,4)" <br>
5) tal:content="r2"><br>
6) </tal:span><br>
<br>
Where 4 is not brain dead as in my example. <br>
<br>
David<br>
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Ok, its best to parse your list of lists in a python script. You pass
a tuple (or array) of inclusionary index numbers. It will return the
filtered list of lists The problem with the try I gave before is that
*condition* is evaluated before *repeat* :-0<br>
<br>
So ...<br>
<br>
# python script<br>
# input: a tuple named tup of index items to include in list of lists,
eg (1,3) and the list of lists<br>
#example input: listoflists = [[61282125371L, 1, 6, 0], [61282125379L,
1, 6, 0], [61282825240L, 6, 6, 0]]<br>
#example tup: (1,3)<br>
<br>
ret = []<br>
for i in range(len(listoflists)):<br>
if i in tup:<br>
ret.append(x[i])<br>
return ret<br>
<br>
Then your ZPT is easy.<br>
<br>
David<br>
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