Heroku only: undefined method `ancestry' for #<Model:0x007f1684d797a8>

[etayluz]

I'm seeing an issue on Heroku only (cannot reproduce locally):

A NoMethodError occurred in home#upload:
undefined method `ancestry' for #Model:0x007f1684d797a8

Method looks like this:
def anthem_upload
user = User.find_by(id: params[:user_id])
anthem = Anthem.create!(user_id: user.id, body:params[:post]) <-- happens here
...
ene

This method doesn't even call on .ancestry method - but the exception happens as soon as model is created.

Model looks like this:
class Anthem < ActiveRecord::Base
has_ancestry
...
end

[crazymykl]

You did not migrate up your database (adding the ancestry column) in Heroku.

[kbrock]

Also of note, Heroku tends to loads all models at startup vs locally it tends to lazy load.
So on Heroku, an error in an unrelated model can be triggered and everything works locally.

To find these, I tend to go through the various controllers, so I'm exercising/loading all my code.
Also, I'll point my database.yml production environment to my test database and startup with RAILS_ENV=production

Best of luck

[kbrock]

@etayluz Any chance the error you are seeing is on github and I could kick the tires?
Thanks

[djass]

I have also "NoMethodError: undefined method `ancestry' " when I try to save my object in database. Of course I migrated up my database.
I done that :
a = Component.new
a.save

And I have this error : NoMethodError: undefined method `ancestry' for #Component:0x00000005c95f68

My model is like this :
class Component < ActiveRecord::Base
has_ancestry
end

My migration is like this :
class AddAncestryToComponent < ActiveRecord::Migration
def change
add_column :components, :acst, :integer
add_index :components, :acst
end
def down

  remove_column :components, :acst
  remove_index :components, :acst

end
end

Please help me, what I done wrong ?

[crazymykl]

The column should be called ancestry, and it should a string (or a text).

[crazymykl]

The column should be called ancestry (or you can use the ancestry_column option when calling has_ancestry), and it should a string (or a text).

[kbrock]

Please reopen if this is still an issue.