In 2010 I set up this blog on Tumblr mostly due to the ease of publishing and not having to worry about the hosting. I also went through two…
So we want to dynamically instantiate an object (i.e. convert a string to a class constant).
Instead of doing this:
@dynamic_var = "User" eval(@dynamic_var)
You can do this:
@dynamic_var = "User" @dynamic_var.constantize
See more about the
constantize method in Rails’s API.