Ruby on Rails

> On Apr 25, 2017, at 8:09 AM, fugee ohu <fuge...@gmail.com> wrote:
>
> I have a TYPES list in my model for ADDRESS_STATE_TYPES like ADDRESS_STATE_TYPES =
>   [  ['Alabama', 'AL'], ...
> Now in my controller i have the value of address_state from the pararms list which  for the first in the list would be 'AL' How can I retrieve the 'Alabama' column in my controller if I have the other value, 'AL' from params list
> Thanks in advance

Well, since you have the data in an array, you can't index into it like you could in a Hash. There you could have

        { 'AL' => 'Alabama', ... }

and then you could find by either keys or values using
name = ADDRESS_STATE_TYPES['AL']
or
code = ADDRESS_STATE_TYPES.key('Alabama').

But in an array, you're going to have to iterate to find it:

def name_for_code(code)
  ADDRESS_STATE_TYPES.each do | pair |
    return pair.first if pair.last == code
  end
end
 
Walter

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