[Zope3-Users] FieldIndex on boolean field - error

2007-03-28 Thread Alek Kowalczyk 
Hi,
I'm trying to index a boolean field of some object, to simplify retrieving all
the objects which have some flag turned on.

I am adding in proper place the index:

catalog['anomaly'] = FieldIndex('anomaly', IMyObject)

But then, when I try to get the objects using the following command, I get an
exception. Is FieldIndex able to index bool field? If not, how to create own
index for doing that?

anomalies = catalog.searchResults(anomaly=True)

  File "C:\Python24\Lib\site-packages\zope\app\catalog\catalog.py", line 121, in
searchResults
results = self.apply(searchterms)
  File "C:\Python24\Lib\site-packages\zope\app\catalog\catalog.py", line 100, in
apply
r = index.apply(index_query)
  File "C:\Python24\Lib\site-packages\zope\index\field\index.py", line 99, in 
apply
if len(query) != 2 or not isinstance(query, tuple):
TypeError: len() of unsized object

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Re: [Zope3-Users] FieldIndex on boolean field - error

2007-03-28 Thread FB 
Hi,

On Wed, Mar 28, 2007 at 03:55:28PM +, Alek Kowalczyk wrote:
> Hi,
> I'm trying to index a boolean field of some object, to simplify retrieving all
> the objects which have some flag turned on.
> 
> I am adding in proper place the index:
> 
> catalog['anomaly'] = FieldIndex('anomaly', IMyObject)
> 
> But then, when I try to get the objects using the following command, I get an
> exception. Is FieldIndex able to index bool field? If not, how to create own
> index for doing that?
> 
> anomalies = catalog.searchResults(anomaly=True)

[snip]

> TypeError: len() of unsized object

A fieldindex always requires a lower and an upper boundary, found objects must
fit into.

Try

 catalog.searchResults(anomaly=(True,True))

BTW: The error is raised because the fieldindex tries to interpret 'True'
as a tuple.

Regards,

Frank
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Re: [Zope3-Users] FieldIndex on boolean field - error

2007-03-28 Thread Aleksander Kowalczyk 

On 3/28/07, FB <[EMAIL PROTECTED]> wrote:


Hi,

On Wed, Mar 28, 2007 at 03:55:28PM +, Alek Kowalczyk wrote:
> Hi,Is FieldIndex able to index bool field? If not, how to create own
> index for doing that?
>
> anomalies = catalog.searchResults(anomaly=True)

Try

catalog.searchResults(anomaly=(True,True))

BTW: The error is raised because the fieldindex tries to interpret 'True'
as a tuple.



Thanks! I didn't think that the solution is so simple.
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