Find class from string

I have many classes (models) called (something)Configuration.

I have a variable named "whatToDo"

Where whatToDo = "sendConfiguration"

What I want to do is    whatToDo.find_by_sql(sql)

It works if I write it sendConfiguration.find_by_sql(sql) but not whatToDo.find_by_sql(sql) where whatToDo = "sendConfiguration". Is there a method that finds a class from a string?
maxbillysAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Andrew DoadesIT TechnicianCommented:
you would need to do WhatToDo.find_by_sql(sql) with a capital W at the start?

This would define the model.
0
wesgarrisonCommented:
See const_get()
http://www.ruby-doc.org/core/classes/Module.html#M001712
whatToDo = "sendConfiguration"  # class name
class_object = Object.const_get(whatToDo)
class_object.find_by_sql(...)

Open in new window

0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Andrew DoadesIT TechnicianCommented:
Sorry, I thought you was trying to find something from the database.

I just added some code into my project and got a result, see attached.

I changed my database and model to  sendConfiguration, to try and help
action = Object.const_get(" sendConfiguration")
action.find_by_sql()

Open in new window

0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Ruby

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.