#datamapper on 2013-09-04 — irc logs at freenode.irclog.whitequark.org

2013-06-06 16:15 dkubb changed the topic of #datamapper to: Datamapper v1.2.0 | Mailing List: http://is.gd/aa9D | Logs: http://is.gd/qWAL7V | DataMapper 2 Renamed to ROM, see #rom-rb for development

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01:59 <V8Energy> is there a method create_or_update or something similar?

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03:42 <onewheelskyward> V8Energy first_or_create

03:42 <onewheelskyward> obj = Model.first_or_create

03:42 <onewheelskyward> obj.add_stuff = x

03:42 <onewheelskyward> obj.save

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05:36 <V8Energy> I have around 900 records in the table, Item.all.destroy seems to work very slowly the more records there are. is there another more efficient method?

05:37 <V8Energy> onewheelskyward: thanks

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06:50 <onewheelskyward> V8Energy direct querying would be faster.

06:50 <onewheelskyward> or if you're wiping the table, model.auto_upgrade!

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06:56 <onewheelskyward> Err, auto_migrate! destroys the data, rather.

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13:24 <namelessjon> onewheelskyward: V8Energy has gone, so there's also Item.all.destroy!

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14:57 <V8Energy> onewheelskyward: but that would erase all tables

14:57 <namelessjon> V8Energy: There's also Item.all.destroy!

14:59 <V8Energy> namelessjon: yes there is but it's VERY slow if there's 1000+ records

14:59 <namelessjon> V8Energy: Note the !

14:59 <V8Energy> oh

14:59 <V8Energy> i'll try that. thanks

14:59 <namelessjon> V8Energy: That makes it issue one scoped DELETE query, instead of N individual ones.

15:00 <namelessjon> V8Energy: You can also do "Item.all(:something => 'param').destory!" to scope it further in the table. Again, that would trigger one query only

15:07 <V8Energy> namelessjon: gotcha. thank you :)

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16:30 <onewheelskyward> ah, nice namelessjon

16:30 <onewheelskyward> I've never had to remove everything before. :)

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17:46 <namelessjon> onewheelskyward: You can also scope it further via the all()

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18:07 <onewheelskyward> I actually don't delete anything anymore, really. Just set the deleted status.

18:08 <namelessjon> heh. Well, for that, there's Item.all(:foo => 'bar').update!(:deleted => true) ;)

18:10 <onewheelskyward> nice

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