Jared Blitzstein on 19 Nov 2007 16:09:22 -0000

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[PhillyOnRails] How can I group objects with a datetime field just by date, ignoring time?

I'm just getting back into Ruby/RoR so I'm pretty rusty on everything (and I don't know Ruby that well to boot). The problem I'm having is I have two classes, Location and Meeting with a 1:M relationship. My Meeting class has start_date:datetime and duration:integer (which is the number of minutes). I want to display this data in a table with the time (7:00am, 8:00am...etc) as the X axis on top and the Location as the Y axis on the left (example: http://jared.blitzstein.net/assets/2007/11/19/matrix_1.html). I was looking at the Enumerable group_by ( http://api.rubyonrails.org/classes/Enumerable.html#M001111) but it takes the time into account when I group it by start_time, I want it to just use the date. Any suggestions how to display my data?

I'm not opposed to changing my field types either, by doing something like start_time/end_time, or start_date/start_time/end_date/end_time etc.
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