Hi, Ian,
On Mar 13, 2007, at 4:25 AM, [EMAIL PROTECTED] wrote:
Once again thanks Jerry,
I've been thinking about the original code that you so kindly
created for
me. I have a few questions relating to that.
Firstly, I have made it do what I want to do by changing it slightly:
qualifiers.addObject(EOQualifier.qualifierWithQualifierFormat
("recordField
= %s", new NSArray(aSearchField));
qualifiers.addObject(EOQualifier.qualifierWithQualifierFormat
("anotherRecordField
= %s", new NSArray(aSearchField));
}
so that if a few other attributes for alternative names are added
to the
database, it searches those too (in an OR type fashion). Seems to
work OK,
but at the moment it just System.out.printlns the number of records
in the
returnedResults array, so I need to figure out how to get the array to
populate my WORepetition.
I'm not sure quite what to suggest here other than that the array
returned from the fetch is bound to the "list" binding of the
WORepetition and an arbitrary variable of the same type as an element
of the array is bound to the "item" attribute.
I'm not sure why, but:
qualifiers.addObject(EOQualifier.qualifierWithQualifierFormat
("recordField
= %s OR anotherRecordField = %s", new NSArray(aSearchField));
Doesn't work. I thought it should, having looked at the
EnterpriseObjects
pdf (page 73).
Try qualifiers.addObject(EOQualifier.qualifierWithQualifierFormat
("recordField = %s OR anotherRecordField = %s", new NSArray(new Object
[] {aSearchField, aSearchField}));
Since you have two references in the "QualifierFormat", then you need
to supply two values in the array.
Lastly, thank you for pointing out the wirehose thing. I'll have a
proper
look at that in due course.
It's certainly worth a look.
Regards,
Jerry
Ian.
On Mon, March 12, 2007 10:15 am, Jerry W. Walker wrote:
Hi, Ian,
What you're trying to do is much more sophisticated than what is
being done by the code I sent you. I worked on an application a
couple
years ago with similar requirements for searching for pictures. In
order
to meet those requirements, we integrated Gary Teter's WireHose
frameworks
and, using them, created an index of pictures with keywords for each
picture.
http://www.wirehose.com/
Wirehose is offered for free and has some sophisticated searching and
indexing built in that, if you use, could save you a few weeks of
programming. Your end result would probably have a higher quality
as well,
since Teter's code has gone through a few generations of
optimization by
one of the WO masters.
I hope you've provided some lengthy estimates to your users, because
this is not a quickly solved problem. Searching is an inherently
difficult
problem space.
Regards,
Jerry
--
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--
__ Jerry W. Walker,
WebObjects Developer/Instructor for High Performance Industrial
Strength Internet Enabled Systems
[EMAIL PROTECTED]
203 278-4085 office
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