Ruby on Rails

On Saturday, July 7, 2012 at 9:29 AM, Doug Jolley wrote:

I'm following through an example provided by DHH in his book, "Agile Web

Development with Rails". This example deals with a database with an

"orders" table that has column names, "name", "email", "address" and

"pay_type".

The Order class is created thusly:

class Order < ActiveRecord::Base

end

Later the example describes one way of reading data from the rows of the

table as follows:

pos = Order.find(:all, :conditions => "name = 'Dave' and pay_type =

'po'")

Then, the author says, "The result will be an array of all matching

rows, each neatly wrapped in an Order object."

It would have been nice if he had gone on to at least describe some of

the characteristics of this particular object. He doesn't. I have a

feeling that one thing that's important for us to know about this object

is that the values for each field in the table row is contained in an

instance variable with the name of the column heading. I'm not sure if

the raw name of the column heading is massaged in any way, i.e.,

singular/plural, upper/lower case, etc. I'm also assuming that there

are accessor methods for these instance variables. What I'd like to

know is whether what I have surmised is, in fact, true. I'd also like

to know if there is anything else that I should know about this object.

Can someone please fill in the blanks for me?

TIA any input.

... doug

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