Re: why not true when testing for equality with a null query
Re: why not true when testing for equality with a null query
- Subject: Re: why not true when testing for equality with a null query
- From: Pierre Bernard <email@hidden>
- Date: Thu, 7 Dec 2006 22:54:46 +0100
To query for NULL values you need to use NSKeyValueCoding.NullValue
Pierre
On 7 Dec 2006, at 18:32, Baiss Eric Magnusson wrote:
Wouldn't the following fetch the record if I don't set any value
for the 3 <$> variables, and the record in the DB has <null> for
the 3 fields?
((areaID = $areaID) or (stateID = $stateID) or (groupID = $groupID)
or ((areaID = stateID) and (areaID = groupID)))
Do I have to set the bindings if the variable is null? Because I
do: ( thus not setting the bindings for the $areaID)
public WODisplayGroup groups;
if ( curArea != null )
groups.queryBindings().setObjectForKey( curArea.areaID(), "areaID");
etc.
----
Baiss Eric Magnusson
<http://www.Track-Your-Finances.com>
<http://www.CascadeWebDesign.com>
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