Sounds like a Wonder Wiki page to me.
On Jan 21, 2010, at 1:17 PM, David Holt wrote:
Hi all,
I needed to include an OR search on a component that had been
created using the queryMatch functionality of WODisplayGroup.
As you know if you create such things, by default any values
included in the queryMatch search fields are joined in "AND"
searches by default. This is a limitation that I've tried to work
around without resorting to programatically setting the qualifier
and fetch on the displayGroup for a very long time.
In my travels I discovered that ERXDisplayGroup in Wonder allows you
to add qualifiers to the WODisplayGroup's generated qualifier.
Instead of using queryMatch on the relevant fields I used a local
variable to then programatically create the OR qualifier I needed.
If you use the method "setQualifierForKey" you add your new
qualifier(s) to a dictionary called _extraQualifiers. These are
added to the generated qualifierFromQueryValues just before the
displayGroup is qualified. After the DG is qualified, you may want
to reset the _extraQualifiers dictionary using clearExtraQualifiers.
Anyway, it is really slick because it saved me having to code the
search page by hand and I wanted to point it out since I didn't see
anything obvious in the archives about the use of these methods.
David
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