^yes On Feb 27, 4:49 am, Carl Youngblood <carl.youngbl...@gmail.com> wrote: > Dan, does the same thing happen if I call create(attributes)? I'd like > to avoid having to use two lines of code where one will do. I had set > up the db constraint but not the validation. Didn't think it mattered. > I will go ahead and do that. > > On Sat, Feb 27, 2010 at 11:21 AM, Dan Kubb (dkubb) <dan.k...@gmail.com> wrote: > > > > > Dirkjan, > > >> Doesn't this work like you want: > > >> o = SomeObject.new(:attribute => 'value') > >> o.save > > >> Resource#save returns true or false here, but you're of course welcome > >> to ignore that return value. > > > Yeah, that's what I was getting at. This only works if you have > > uniqueness validation turned on. If there's no DB constraint, and dm- > > validations is off, you'll get an explosion. With no DB constraint > > *or* validations, it'll just insert a new record. With uniqueness > > constraints turned on DM will not perform the insert at all, because > > it'll see the record already exists, and it will return false; which > > you are free to ignore. > > > However, based on the StackOverflow thread it appears as if Carl found > > a work-around using #first_or_create. I forgot to recommend this > > because I got caught up on the requirement "silently fail if a record > > with the same name already exists", which to me implied that he wanted > > to save the record and have the operation be a no-op if the record > > already exists. > > > -- > > > Dan > > (dkubb) > > > -- > > You received this message because you are subscribed to the Google Groups > > "DataMapper" group. > > To post to this group, send email to datamap...@googlegroups.com. > > To unsubscribe from this group, send email to > > datamapper+unsubscr...@googlegroups.com. > > For more options, visit this group > > athttp://groups.google.com/group/datamapper?hl=en.
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