Could he follow your advice, about using SQL, and create a derived column in his model and then use a standard qualifier against the derived column?
On Jun 1, 2010, at 12:53 PM, Chuck Hill wrote: > > On Jun 1, 2010, at 3:30 PM, Joe Kramer wrote: > >> Hi all, >> >> I may be barking up the wrong tree here, but I wanted someone to confirm >> that for me. I have a simple Person EO with a NSTimestamp attribute for >> birthdate. I'm wondering if it is possible to create a qualifier to get all >> the people whose birthday is in a particular month (May, for example). The >> year doesn't matter so I can't do a simple ">" or "<". If this isn't >> possible (or efficient) I can change the data model to capture the birth >> month separately. Then I can just set the month programatically when a new >> person is created and use that value as the qualifier. Just curious what >> others think. > > > Define "possible". :-P The SQL way is > > select extract(MONTH from col_name) from table_name; > > So you could write a custom qualifier to do this. Generally, writing > qualifiers ranks as "non trivial". I don't know of an existing qualifier > that you can use. Depending on your needs, SQL might be the way to go. See > EOSQLQualifier JavaDocs. > > > Chuck > > -- > Chuck Hill Senior Consultant / VP Development > > Practical WebObjects - for developers who want to increase their overall > knowledge of WebObjects or who are trying to solve specific problems. > http://www.global-village.net/products/practical_webobjects > > > > > > > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Webobjects-dev mailing list ([email protected]) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/webobjects-dev/jlmiller%40kahalawai.com > > This email sent to [email protected] Johnny Miller Kahalawai Media Corp http://www.kahalawai.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to [email protected]
