Ruby on Rails

On Jun 26, 2012, at 5:00 PM, cyber c. wrote:

> Hi Walter,
>
> Thanks for your comments.
>
>>
>> def create -> same for def submit too
>>
>> respond_to do |format|
>> if PARAM matches so and so
>> DEPENDING on params this gets routed to different page
>
> at any point here do you instantiate a new instance of your model,
> assign the params to it, and try to save it? Until you try to save, your
> validations won't fire.
>
>>> I didn't instantiate a new instance of my model. When i try to instantiate
> @record = Record.new(params[:record])
> fires an error "wrong number of arguments ( 1 for 0) "
> I have removed the default new definition, as i thought i dont need
> it(im not storing the info in a DB, but processing the form data)

What version of Rails? I see a Railscast here from 2010 that has that very same code, and no error. But it also has an initialize method hand-written into the model:

def initialize(attributes = {})
attributes.each do |name, value|
send("#{name}=", value)
end
end

You might need something like that to "persist" the data long enough for your controller to do something with it. http://railscasts.com/episodes/219-active-model

Walter

>
>> else
>> format.html { redirect_to records_url}
>> format.json { head :no_content }
>> end
>> end
>>
>> end
>>
>> Should i write my controller differently to handle the errors?
>
> You might want to look at a vanilla scaffold controller and see how it's
> done canonically before you reinvent the wheel. There are separate
> create and update methods for a reason.
>
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