[Rails] How to describe a decimal field in Rails scaffolding

Hi,

Can anyone explain how to use decimals in Rails scaffolding ?

When I enter the scaffold command :

ruby script/generate scaffold payment amount:decimal, :precision =>
10, :scale => 2 event:string datum:date

nothing happens. No error message, no generating of files, nothing.

When I enter the scaffold command :

ruby script/generate scaffold payment amount:decimal event:string
datum:date

and then open the generated migrate file and add precision and
scale :

t.decimal :amount, :precision => 10, :scale => 2

then an amount column of type decimal(10,2) is created in my MySQL db.

Is it not possible to describe the precision and scale in the scaffold
command ?

Thanks

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