for a couple of days, I've been having following issue:
in all my models, i get "undefined methoddebug' for nil:NilClass"` when it runs
logger.debug "whatever"
Adding Rails. in front of logger.debug solves the issue but I'd like to find the cause.
I have no clue where to search. I'm running rails 3.2.8 and the only gem I recently installed is friendly_id
thanks.
The problem is due to the fact that I added the actionview helpers in my model:
include ActionView::Helpers
I don't know the reason but it's the cause...
To avoid having to add Rails in front of all my logger lines, I then added this line in the models having the Helpers included:
logger = Logger.new(STDOUT)
Related
We are getting this error on all local setups of our project(currently) when we call any method like:
belongs_to :abc
after_create :some_method
def some_method
if self.abc.saved_change_to_parent_id?
...
// or even self.abc.parent_id_before_last_save
end
It gives:
NameError (undefined local variable or method `first' for ActiveRecord::NullMutationTracker:Class):
app/models/model_name.rb:50:in `some_method'
Yes, there is not a full trace with rails internal file paths etc, i only get my project files trace. Maybe its some logger config issue, any help to get full trace will also be appreciated.
There are no such issues i could find on internet, thats why posting here.
PS: Not posted on rails issue tracker(github issues) because i don't have minimal reproduction.
Stack
ruby: 2.4.3
rails: 5.1.5 (also tried on 5.1.7)
OS: Ubuntu 20, also tried on macOS
Thanks in advance.
UPDATE1: Using byebug, i got to this trace, where error is occuring:
/Users/dev/.rvm/gems/ruby-2.4.3/gems/acts_as_singleton-0.0.8/lib/acts_as_singleton.rb:43
which is here, so it is not directly from rails, but a very outdated gem we have in our code for some reason.
As i posted in the update, issue was not with rails or anything, i used byebug to track trace and it was something like:
activemodel-5.1.5/lib/active_model/attribute_methods.rb:384
activerecord-5.1.5/lib/active_record/attribute_methods/dirty.rb:146
activerecord-5.1.5/lib/active_record/attribute_methods/dirty.rb:319
activerecord-5.1.5/lib/active_record/attribute_methods/dirty.rb:315
acts_as_singleton-859f49112c03/lib/acts_as_singleton.rb:43
The last line, should not be there, as we are not using acts_as_singleton on any of the involved models.
So after some tracking, it turned out issue with the gem. I have created a fork and used that fork. Here is the fork: https://github.com/ziaulrehman40/acts_as_singleton (forked it from another fork, which seemingly had some other fixes as well). And you can see my changes here.
What was the issue?
This gem writes a module named Singleton within ActiveRecord module. Which seems ok, unless you realize that there is another module named Singleton already. Whihc is being included in:
gems/activerecord-5.1.5/lib/active_record/attribute_mutation_tracker.rb:83
class NullMutationTracker # :nodoc:
include Singleton
...
So as you can see, this Singleton module gets overriden(or expanded, not sure) un-intentionally by that outdated gem(acts_as_singleton).
I'm trying to test a file upload using RSpec 3.7 in a Rails 5.2 app, and the simplest recommendation I've seen (several places, including this SO post) is to use fixture_file_upload - which looks great, except that it doesn't seem to be available in my app, and I don't know why.
The only thing I can think of is that our app is not using ActiveRecord, it's using MongoID. But ActiveRecord shouldn't be required to use these methods... they're totally unrelated. Is there another new "ActiveSomething" library in Rails 5 that I'm missing? (this app was upgraded from a Rails 4 app...)
To explain my problem more concretely, I've tried putting:
let(:file) { fixture_file_upload('invalid_csv.csv') }
in one of my contexts, and it raises an exception:
undefined local variable or method 'fixture_path' for #<RSpec::ExampleGroups::...>
I tried defining config.file_fixture_path as outlined here, and that raises it's own exception:
undefined method `file_fixture_path=' for #<RSpec::Core::Configuration::...>
Does this work at all? Clearly I'm missing something...
I've fixed this by including their module on the RSpec config block:
RSpec.configure do |config|
#...
config.include ActionDispatch::TestProcess::FixtureFile
#...
end
this worked for me
Rack::Test::UploadedFile.new(Rails.root.join("spec/fixtures/doc.pdf"))
I'm using the latest version of the Impressionist and Rails Admin gems, and wondering if anyone could shed some light on an annoying conflict I'm experiencing. The problem is roughly documented here - https://github.com/sferik/rails_admin/issues/1315, yet the vaguely described solution is not working for me. When I have the line is_impressionable in my Listing model, I get an error when starting my Rails server with rails s:
...rvm/gems/ruby-2.0.0-p247/gems/activerecord-4.0.2/lib/active_record/dynamic_matchers.rb:22:in `method_missing': undefined local variable or method `is_impressionable' for Listing(no database connection):Class (NameError)
If I first start the server, and then add the 'is_impressionable' line, everything works fine, so the problem only occurs during initialization. I don't fully understand the initialization process, so am not sure how to go about getting this to work.
I have tried moving all my rails_admin model configuration options to their respective models, rather than in the initializer, which had no effect. I also have the following line in my initializer:
config.included_models = [Listing,ListingImage,AllOtherModelsHere...]
I have tried adding single quotes around these model names, which results in the following errors, as described in the github issue here
[RailsAdmin] Could not load model Listing, assuming model is non existing. (undefined local variable or method `is_impressionable' for Listing(no database connection):Class)
Any ideas what else I can try to make these gems work together? I don't want to have to remove the is_impressionable line every time I want to restart the server or generate a migration...
Not sure if the same issue that I had but yet I will post what worked for me just in case someone struggles with this too:
Im on a ruby 2.1.5 project with rails 4.2.0 and among other gems I'm using rails admin.
I run into several weird problems trying to set this up. For instance if I added the is_impressionable call within one of my models for some reason the execution of that file stopped there and I started getting weird errors like any method declared below the is_impressionable failed with undefined error.
So what I end up doing was:
class MyModel < ActiveRecord::Base
include Impressionist::IsImpressionable
is_impressionable
end
So this solved my issue and now i can access #my_model_instance.impression_count as expected.
I changed every occurrence of Klass to 'Klass'.constantize in initializer.
On a server i had an installation of the gollum wiki. It ran fine. Now I also had to install redmine on that same server. This was a big pain, as redmine refused to run with puma. I had to mess around a lot with different gems to make it work at all.
But for some reason i now get an error from gollum, whenever i try to create a new wiki page:
NoMethodError at /create/old/git-tips
undefined method `translate' for I18n:Module
The stack trace shows that the error occurs in this line of stringex:
/var/lib/gems/1.9.1/gems/stringex-2.0.5/lib/stringex/localization/backend/i18n.rb in i18n_translations_for
::I18n.translate("stringex", :locale => locale, :default => {})
So i checked the installed packages with gem list and the required version of i18n 0.6.1 is there.
Any idea, what could be wrong and how to fix this?
For reference here's the output of gem list.
This may or may not help, but I had a similar problem on a large code base where there was an application-specific I18n module (which included some custom helper methods), but this was overriding the 't' method (a shortened form of translate).
In this case I found I could force the base-level I18n module by using two colons...
::I18n.t('thing')
I am working on an established project, Rails 3, and trying to turn of SSL in development. The following line in environments/development.rb generates an error.
config.after_initialize do
SslRequirement.disable_ssl_check = true
end
Error reads:
undefined method `disable_ssl_check=' for SslRequirement:Module (NoMethodError)
Any pointers to this?
Searches have revealed little so far.
Thank you
Based on the version number you provided (0.1.0) the problem is likely caused by the fact that you are using a different gem.
The one you use is ssl_requirement (repo), whereas the disable_ssl_check method is provided by bartt-ssl_requirement (repo). The latter one is actually a fork of the former one so you might try to upgrade.