thanks to all of u. Now I uderstand more what I use to write. 2015-03-30 14:31 GMT+02:00 Alexandre Neto <senhor.n...@gmail.com>:
> Someone corrects me If I'm wrong. > > On Mon, Mar 30, 2015 at 1:07 PM, Junior Delaz <del...@gmail.com> wrote: >> >> By the way, can someone explain me why for some functions (attribute, >> getFeature), you need to use simple quote for the fields and double >> quotes when using other functions ? >> > > Because in the expression calculator, whenever you use the double quotes, > it will be evaluated before and it will return the value stored inside the > feature's attribute. But for some functions, like attribute(), one of the > arguments is a string with the name of the attribute itself, and not his > value. > > Best regards, > > Alexandre Neto >
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