Question

I’m trying to fetch associations of a model dynamically. For ex;

model1 has_many model2s
model1 has_many model3s

normally i can do x.model2s or x.model3s. But what if i dont know which association is wanted. Is there any snippet like : x["model2s"] to call associations dynamically?

Thanks
Çağdaş.

Answer 1

Yes, you can do x.send("model#{i}s") assuming you have the number saved in i or just x.send(foo) if you have the full name as string or symbol saved in foo.

Documentation:

• Object#send
• Object#public_send