What's a good way to get at a Class instance, from a string containing its name?
For example, say I have a string "Customer", and want to call Customer.my_class_method(). I realise I could do something like:
# class_name = "Customer"
result = eval("#{class_name}.my_class_method()")
....but it smells like a hack to me, and so I suspect there's a more "proper" way to get at the object I need...
Any pointers would be much appreciated!
Cheers,
Kevin
You're looking for Module.const_get(). Use it to get the class object, then call the method.
Hope that helps.
James Edward Gray II
On Apr 25, 2005, at 7:04 PM, Kevin McConnell wrote:
What's a good way to get at a Class instance, from a string containing its name?
For example, say I have a string "Customer", and want to call Customer.my_class_method(). I realise I could do something like:
# class_name = "Customer"
result = eval("#{class_name}.my_class_method()")....but it smells like a hack to me, and so I suspect there's a more "proper" way to get at the object I need...
Any pointers would be much appreciated!
James Edward Gray II wrote:
You're looking for Module.const_get(). Use it to get the class object, then call the method.
Yep, that's exactly what I needed.
Thanks!