This is a request for a programming technique:
class Mymodel < ActiveRecord::Base
my_instance = Mymodel.new
If I am given a string representation of an attribute “xxx” what is the
most elegant way of passing that string to my_instance to retrieve its
value? This is probably a common idiom, given what Rails does, but I
cannot seem to find its code in the rails gem at the moment.
So, if anyone knows hoe to do this off the cuff I would appreciate it.
An example of the intended use of this is
def table_compare(table1, table2, array_of_attributes) do |t1, t2,
tint = t1.column_names & t2.column_names
tfin = tint & aon
tfin.each do |column|
return false if t1.column <> t2.column
return tfin #could be nil
I want to convert the string value of the column variable into the
attribute name to obtain the value of that attribute.