Ah, so basically foo[#{a}][b] is nothing more but Ruby conventional
syntax for
@params['foo']['#{a}][b]
As for my other question...I think I understand it now, but I want to be
sure and clarify something.
def update
@person = Person.find(@params["person"]["id"])
@person.attributes = @params["person"]
if @person.save
redirect_to :action => "show", :id => @person.id
else
render "person/edit"
end
end
@person = Person.find(@params["person"]["id"])
@params["person"]["id"] could be person[#{id}]. Of course, Person.find
is used because it will return a person record with the corresponding
id.
I am assuming that since Ruby can go from singular to plural, it is
smart enough to know that People.find wants a single record that can
only be found in the people db (as People represents multiple persons).
Frederick Cheung wrote:
> On 23 Sep 2008, at 21:17, Dave Lenhardt wrote:
>>
>>
>> What, exactly, is the [phone] in phones[#{phone.id][phone]? I know
>> phones is the db phones. I know phone id is the PK (and for
>> phones[new][phone]. What is phone though? Also, in phones[new]
>> [phone],
>> what is new creating/doing?
>>
> This is Rails parameter naming converion
>
> phones[#{phone.id}][phone] means that the corresponding input element
> will (in the controller) be at params['phones']['25']['phone']
> (assuming the id was 25).
>
> The 'new' is presumably just a convention by whoever wrote this code
> to indicate a new record.
>
> I wrote some stuff up about this:
> http://www.spacevatican.org/2008/7/18/parametrised-to-the-max
>> render "person/edit"
>>
>> end
>> end
>
>> What is ["person"]? What is it referencing?
>>
>
> Not sure what you're asking about. params is just a regular hash,
> they're pulling out the value with key "person"
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