guarded_getitem and zsql method results
It's been about 18 months since I last looked at Zope and a lot seems to have changed, especially in terms of security (eg. the administrator no longer being able to create objects etc). Most changes I've got to grips with but this one I can't figure out - I loop over the results from a ZSQL method which returns a variable mydate that I wanted to split into year, month, day values. <dtml-in ZSQL_SelectDates> <dtml-call "REQUEST.set('myyear', _.string.split('mydate', '-')[0])"> ... other code </dtml-in> This causes an error - File <string>, line 2, in f (Object: guarded_getitem) File C:\PROGRA~1\ZOPE-L~1\bin\lib\string.py, line 114, in split File C:\PROGRA~1\ZOPE-L~1\lib\python\DateTime\DateTime.py, line 1106, in __getattr__ AttributeError: split OK, I know there are multiple ways for me to get around this - a) use a slice such as mydate[0:4] should work. b) force the variable 'mydate' into the REQUEST first. eg. <dtml-call "REQUEST.set('mydate', mydate)"> <dtml-call "REQUEST.set('myyear', _.string.split('mydate','-')[0])"> etc But what I really want to know is why can't I use string.split() on the variables returned from a ZSQL method ? Thank you. Stephen. ps. All this Guarded stuff looks new. What's its purpose ? -- Sent through GMX FreeMail - http://www.gmx.net
<dtml-in ZSQL_SelectDates>
<dtml-call "REQUEST.set('myyear', _.string.split('mydate', '-')[0])"> ... other code </dtml-in>
This causes an error -
File <string>, line 2, in f (Object: guarded_getitem) File C:\PROGRA~1\ZOPE-L~1\bin\lib\string.py, line 114, in split File C:\PROGRA~1\ZOPE-L~1\lib\python\DateTime\DateTime.py, line 1106, in __getattr__ AttributeError: split
OK, I know there are multiple ways for me to get around this - a) use a slice such as mydate[0:4] should work. b) force the variable 'mydate' into the REQUEST first. eg. <dtml-call "REQUEST.set('mydate', mydate)"> <dtml-call "REQUEST.set('myyear', _.string.split('mydate','-')[0])"> etc
Sorry, self-correction. The above doesn't work either. Is there any reason why variables returned from a <dtml-in ZSQL_mymethod> can not be sliced or string split ? This seems very strange. Thanks. Stephen. -- Sent through GMX FreeMail - http://www.gmx.net
From: <Shriek@gmx.co.uk>
File C:\PROGRA~1\ZOPE-L~1\bin\lib\string.py, line 114, in split File C:\PROGRA~1\ZOPE-L~1\lib\python\DateTime\DateTime.py, line 1106, in __getattr__ AttributeError: split
You're trying to split a DateTime object, not a string, and the Python 2.1 implementation of string.split is confusing you -- it gives the wrong error message since it has been reimplemented as something like: def split(s, *args): return s.split(*args) You need to convert the DateTime into a string, using one of its methods such as Date(). Cheers, Evan @ Zope & 4-am
From: <Shriek@gmx.co.uk>
File C:\PROGRA~1\ZOPE-L~1\bin\lib\string.py, line 114, in split File C:\PROGRA~1\ZOPE-L~1\lib\python\DateTime\DateTime.py, line 1106, in __getattr__ AttributeError: split
You're trying to split a DateTime object, not a string, and the Python 2.1 implementation of string.split is confusing you -- it gives the wrong error message since it has been reimplemented as something like:
def split(s, *args): return s.split(*args)
You need to convert the DateTime into a string, using one of its methods such as Date().
Well, that was humbling. Thanks Evan (and Chris who also pointed me in the right direction). Must say that the error msgs are quite enigmatic at times. Cheers, Stephen. -- Sent through GMX FreeMail - http://www.gmx.net
It appears that you're trying to split a DateTime object instead of a string. Shriek@gmx.co.uk wrote:
It's been about 18 months since I last looked at Zope and a lot seems to have changed, especially in terms of security (eg. the administrator no longer being able to create objects etc). Most changes I've got to grips with but this one I can't figure out -
I loop over the results from a ZSQL method which returns a variable mydate that I wanted to split into year, month, day values.
<dtml-in ZSQL_SelectDates> <dtml-call "REQUEST.set('myyear', _.string.split('mydate', '-')[0])"> ... other code </dtml-in>
This causes an error -
File <string>, line 2, in f (Object: guarded_getitem) File C:\PROGRA~1\ZOPE-L~1\bin\lib\string.py, line 114, in split File C:\PROGRA~1\ZOPE-L~1\lib\python\DateTime\DateTime.py, line 1106, in __getattr__ AttributeError: split
OK, I know there are multiple ways for me to get around this - a) use a slice such as mydate[0:4] should work. b) force the variable 'mydate' into the REQUEST first. eg. <dtml-call "REQUEST.set('mydate', mydate)"> <dtml-call "REQUEST.set('myyear', _.string.split('mydate','-')[0])"> etc
But what I really want to know is why can't I use string.split() on the variables returned from a ZSQL method ?
Thank you.
Stephen.
ps. All this Guarded stuff looks new. What's its purpose ?
-- Sent through GMX FreeMail - http://www.gmx.net
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participants (3)
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Chris McDonough -
Evan Simpson -
Shriek＠gmx.co.uk