From: Darin Ginther <darin.ginther@...>
Date: 2009-01-06T01:02:15+09:00
Subject: noob question: object to string

So I'm able to exercise creating my own class and returning an object
from that class.  I'm having trouble treating the return as an integer
(for the purpose of a < or > compare).. Yet another noob syntax
question.


compare.rb:
    myinitialdbcount = Dbutil.new(mydb, dbuser, dbpw, counttable,
leadtype)
    puts "Initial Count:"
    initialcount = myinitialdbcount.count_table{ |data| p data }

This returns:
Initial Count:
213912



If I try to simply print (put) it:
puts myinitialdbcount.count_table{ |data| p data }

This returns:
nill


I think I need to "to_int" this object or get it into a state where I
can assign it to a local variable... There is something I dont
understand here.



dbutil.rb:
def count_table
   dbh= DBI.connect(@mydb, @dbuser, @dbpw)
     sth = dbh.execute("SELECT count(*) FROM #@table where type_code =
#@type_code")
      row = sth.fetch
      yield row[0]
     sth.finish
    dbh.disconnect
  end
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