[Zope] dictionary from sequence-item
Hello,I am looping through a list of dictionary objects using dtml-in...and within the dtml-in body I have:dtml-var "_.getitem('sequence-item')['titled']" missing="none"Some of the dictionaries in the list don't have 'titled' key so it should replace it with the word "none", but it gives me an errorError Type: KeyError Error Value: 'titled' I don't understand. Another option is that I can use dtml-if "_.getitem('sequence-item').has_key('titled')" but it doesn't work, says has_key is an unknown attribute. This is the stupidest thing ever! it's a dictionary object!I try to typecast it using the dict(_.getitem('sequence-item')).has_key('titled') it gives me an error saying it can't typecast, but I am 100% sure it's a dictionary object because I can access it easily _.getitem('sequence-item')['titled'] for those that have that key.Any idea how I can check if the
titled key is in the dictionary for the current list item?Thanks in advance guys!
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Re: [Zope] dictionary from sequence-item
Itmight make your life easier if you used a
dtml-let (WARNING: untested):
dtml-in
dictList="ScriptThatReturnsAListofDicts()"
dtml-let
aDict="_['sequence-item']"
dtml-if
"aDict.has_key('titled')"
do
something here
But this is still pretty ugly. Another
approach would be to clean up the data in your list/dicts within the python
script, before you get to the dtml method.
Jonathan
- Original Message -
From:
Alric
Aneron
To: zope@zope.org
Sent: Monday, June 19, 2006 2:46 PM
Subject: [Zope] dictionary from
sequence-item
Hello,I am looping through a list of dictionary objects
using dtml-in...and within the dtml-in body I have:dtml-var
"_.getitem('sequence-item')['titled']" missing="none"Some of the
dictionaries in the list don't have 'titled' key so it should replace it with
the word "none", but it gives me an errorError Type:
KeyErrorError Value: 'titled'I don't
understand. Another option is that I can use dtml-if
"_.getitem('sequence-item').has_key('titled')" but it doesn't work, says
has_key is an unknown attribute. This is the stupidest thing ever! it's
a dictionary object!I try to typecast it using the
dict(_.getitem('sequence-item')).has_key('titled') it gives me an error saying
it can't typecast, but I am 100% sure it's a dictionary object because I can
access it easily _.getitem('sequence-item')['titled'] for those that have that
key.Any idea how I can check if the titled key is in the dictionary
for the current list item?Thanks in advance guys!
Yahoo!
Messenger with Voice. PC-to-Phone calls for ridiculously low rates.
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Re: [Zope] dictionary from sequence-item
Thanks,I tried your suggestion Jonathan and I get this:Error Type: AttributeError Error Value: has_keyThanks anyway.I never used ZPT, I'm not sure how to approach it from that angle...would it be easy to do? (You mean tal and metal right?)Anyone have any other suggestions?ThanksJonathan [EMAIL PROTECTED] wrote: Itmight make your life easier if you used a dtml-let (WARNING: untested): dtml-in dictList="ScriptThatReturnsAListofDicts()" dtml-let aDict="_['sequence-item']" dtml-if "aDict.has_key('titled')" do something here But this is still pretty ugly. Another approach would be to clean up the data in your list/dicts within the python script, before you get to the dtml method. Jonathan - Original Message -From:AlricAneronTo: zope@zope.orgSent: Monday, June 19, 2006 2:46 PM Subject: [Zope] dictionary fromsequence-item Hello,I am looping through a list of dictionary objectsusing dtml-in...and within the dtml-in body I have:dtml-var"_.getitem('sequence-item')['titled']" missing="none"Some of thedictionaries in the list don't have 'titled' key so it should replace it withthe word "none", but it gives me an errorError Type:
KeyErrorError Value: 'titled'I don'tunderstand. Another option is that I can use dtml-if"_.getitem('sequence-item').has_key('titled')" but it doesn't work, sayshas_key is an unknown attribute. This is the stupidest thing ever! it'sa dictionary object!I try to typecast it using thedict(_.getitem('sequence-item')).has_key('titled') it gives me an error sayingit can't typecast, but I am 100% sure it's a dictionary object because I canaccess it easily _.getitem('sequence-item')['titled'] for those that have thatkey.Any idea how I can check if the titled key is in the dictionaryfor the current list item?Thanks in advance guys! Yahoo!Messenger with Voice. PC-to-Phone calls for ridiculously low rates.
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Re: [Zope] dictionary from sequence-item
Alric Aneron wrote:
Hello,
I am looping through a list of dictionary objects using dtml-in...
and within the dtml-in body I have:
dtml-var "_.getitem('sequence-item')['titled']" missing="none"
Some of the dictionaries in the list don't have 'titled' key so it
should replace it with the word "none", but it gives me an error
Error Type: KeyError
Error Value: 'titled'
I don't understand. Another option is that I can use
dtml-if "_.getitem('sequence-item').has_key('titled')" but it
doesn't work, says has_key is an unknown attribute. This is the
stupidest thing ever! it's a dictionary object!
I try to typecast it using the
dict(_.getitem('sequence-item')).has_key('titled') it gives me an error
saying it can't typecast, but I am 100% sure it's a dictionary object
because I can access it easily _.getitem('sequence-item')['titled'] for
those that have that key.
Any idea how I can check if the titled key is in the dictionary for the
current list item?
Thanks in advance guys!
Alric,
Your earlier post indicated that your DTML obtains the sequence of
dictionaries from a python script - and *then* tries to filter it and
process it.
Why not do your filtering, e.g. appending only thoses values that have
a key == 'key1' in your python script first? Thats why "god" invented
python scripts :-) .
And as Jonathan indicated, you should also simplify the list returned.
I would just return a list of filtered values, e.g.
# ---
# python script (based on your earlier message)
# ---
# DTML call to this script can pass these as parameters or obtain them
from the request ...
mydict = {'key1': 'value1', 'key2': 'value2'}
mydict2 = {'key1': 'value3', 'key2': 'value4'}
desired_key = 'key1'
#results bucket
finalList = []
for dict in (mydict,mydict2): # we avoid returning list of
dictionaries which can be awkward in DTML
for k in dict.keys():
if k == desired_key: # --- filter it here so DTML
doesn't have to
finalList.append( dict[ k ] )
return finalList
Now your DTML is simple.
David
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