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Add label_method info in README 

From @rafaelfranca's StackOverflow post here: http://stackoverflow.com/questions/6334582/simple-form-association-custom-label-name/6335679#6335679
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Dave Shaffer 2016-06-06 14:58:00 -04:00
parent 6f537ed98e
commit a52962905f
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@ -323,8 +323,9 @@ Collection inputs accept two other options beside collections:
Those methods are useful to manipulate the given collection. Both of these options also accept
lambda/procs in case you want to calculate the value or label in a special way eg. custom
translation. All other options given are sent straight to the underlying helper. For example, you
can give prompt as:
translation. You can also define a `to_label` method on your model as **Simple Form** will search for
and use `:to_label` as a `:label_method` first if it is found. All other options given are sent
straight to the underlying helper. For example, you can give prompt as:
```ruby
f.input :age, collection: 18..60, prompt: "Select your age", selected: 21