Rails - Dec 2005 - key value pairs working

Hi,
  can anyone tell me how is the following lines in ruby works on rails 
.how is the key value pairs accessed by rails .

	 params[:invoiceitem].each do |key, val|
		 @invoice.invoiceitems << InvoiceItem.new(val)
	 end

Thanx and regards,
Naroor Rathish,
www.naroor.blogspot.com

-- 
Posted via http://www.ruby-forum.com/.

Am Freitag, den 23.12.2005, 08:27 +0100 schrieb Naroor
Rathish:
> Hi,
>   can anyone tell me how is the following lines in ruby works on rails 
> .how is the key value pairs accessed by rails .
> 
> 	 params[:invoiceitem].each do |key, val|
> 		 @invoice.invoiceitems << InvoiceItem.new(val)
> 	 end
Started writing to answer your question a few times, but everytime i
felt not rightly understood it.

One try:

If params[:invoiceitem] contains a Hash, the key valus pairs would be
accessed like from a Hash. There is no magic. params[] is a Hash by
nature.