Enable stack dump on exception in Rails console

ruby stack-trace rails-console pry
The Pellmeister picture The Pellmeister · Jul 15, 2013 · Viewed 6.9k times · Source

I am using Ruby on Rails with the pry gem. When an error occurs during a rake task, I get a very nice stack trace.

When however I do something in my rails console that triggers an exception, I only get to see the error message and the one line of code that triggered it (which most of the time is somewhere in the rails core).

Is there a way to enable these stack dumps in the console?

Answer

The Pellmeister picture The Pellmeister · Jul 15, 2013

I found a solution myself.

Apparently, I was in need of the command wtf? that comes with pry.

[7] project »  p.known_attributes
NoMethodError: undefined method `foo' for #<Bar:0x007f871fd12a38>
from /[...]/gems/activemodel-4.0.0/lib/active_model/attribute_methods.rb:436:in `method_missing'

[8] project »  wtf?
Exception: NoMethodError: undefined method `foo' for #<Bar:0x007f871fd12a38>
--
[... stack dump ...]  

[9] project »

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