Plugins - helper function is an "undefined method", Objects "can't be referred"

rubyonrails-talk
1

I'm modifying a shopping cart plugin, MinimalCart, and for some reason I can add one item to the cart multiple times, but as soon as I add a second item, all kinds of strange things start happening.

An actionview::template error is thrown because a method defined in application_helper is "undefined"

What could cause a defined application helper method to all the sudden not be defined?

here is the trace : http://pastie.org/211114

Thanks, Nik

2

I'm modifying a shopping cart plugin, MinimalCart, and for some reason I can add one item to the cart multiple times, but as soon as I add a second item, all kinds of strange things start happening.

An actionview::template error is thrown because a method defined in application_helper is "undefined"

What could cause a defined application helper method to all the sudden not be defined?

Does the problem go away if you turn on class caching in
development.rb ? (and then restart the server)

Fred

3

Does the problem go away if you turn on class caching in
development.rb ? (and then restart the server)

Yes it does! Mind explaining a little bit about how that might be causing this issue?

4

Short version: when that setting is false your app is reloaded between requests, but plugins aren't. If a plugin is holding onto a class, reference etc... from before the app gets reloaded then post-reload it's holding onto (essentially) junk. One way around is to make the plugin be reloaded at the same time as the app Long version: Reload me, Reload me not - Space Vatican

Fred