i wrote a script to fill a database using values from an excel page. In the script I'm getting the error
uninitialized constant Profile (NameError)
Profile is the name of a model i have. Rails looks it is not recognizing my model in the script. How can fix this.
It looks like Rails doesn't get properly initialized.
Can you post the script, and explain how you run / start it?
Which version of Rails do you use?
If you have a rails application and you want to run a task as a script, there are two ways to do it:
1) via script runner
2) via rake
If you use rake, you have to tell it to initialize your Rails application properly.
The rake tasks need to be under ./lib/tasks
Check out these Posts, which explain how to do it:
I have a Rails task: should I use script/runner or rake?
script/runner in rails 3
http://guides.rubyonrails.org/active_record_querying.html
Related
Project:
https://github.com/jmopr/job-hunter
Background:
Took only 2 intro course on Java 7 years ago.
So I was browsing GitHub and ran across this nifty project that deals with scraping & applying for jobs on indeed.com.
The question is, how do you run it? Here is what I tried to do:
Tried to execute applier.ru I figured I was doing something wrong after getting:
/home/shap/Desktop/job-hunter-master/applier.rb:19:in initialize': uninitialized constant JobApplier::Job (NameError)
from /home/shap/Desktop/job-hunter-master/applier.rb:169:innew'
from /home/shap/Desktop/job-hunter-master/applier.rb:169:in `'
Something was missing, so looking around I found the bin folder and tried executing /bin/setup.ru but i ran into this error:
== Preparing database ==
/var/lib/gems/2.3.0/gems/railties-4.2.5.1/lib/rails/application/configuration.rb:110:in database_configuration': Cannot loadRails.application.database_configuration`:
Could not load database configuration. No such file - ["config/database.yml"] (RuntimeError)
Are we supposed to generate our own database file? how would we do that?
Any help or even a push in the right path is deeply appreciated.
You are supposed to generate your own database configuration. It should be stored at config/database.yml. It's a file that specify where's your db server, what's the name of the database and what should be the credentials to access it. Google "rails database.yml example".
Once you have that, creating your actual database is as easy as running these commands
rake db:create
rake db:migrate
There may be many-many other different obstacles on your journey of making this application run. Things that are obvious to rails devs, but arcane to total strangers. I suggest finding and completing a ruby on rails tutorial.
This is ruby on rails project,
after checkout you need install all required dependencies, with command
bundle exec install
Run project you can with command
./bin/rails server
If project is started successful, you can access it with browser using address http://localhost:3000
more about rails you can find there http://guides.rubyonrails.org/getting_started.html
http://guides.rubyonrails.org/getting_started.html
I've deployed a Rails app to AWS using Capistrano, and now I'm trying to start Rails console, but can't. If I go into home/user/app-name/current/ and try running rails c I just get instructions on how to use the rails command.
Alternatively, I need to run a command, specifically a Searchkick command ClassName.reindex is there a way I'm missing to do this without opening the console?
rails c is probably failing due to the fact that you are missing bin/rails in your deployed app. See this answer for a fix: Rails 4 doesn't detect application after capistrano deployment
Once you get bin/rails working, you can run a command without using the console like this:
bundle exec rails runner ClassName.reindex
The runner Rails command loads your app and evaluates whatever Ruby code you supply.
Depending on how you've done your deployment, you may need to explicitly specify the environment, like this:
bundle exec rails runner -e production ClassName.reindex
Take a look at these and let m,e know if you find them to be helpful.
https://github.com/ydkn/capistrano-rails-console
https://gist.github.com/benedikt/1115513
So starting from Rails 4.1.x there seems to be a recommended way to use rails under the application folder. Instead of the traditional:
rails server
it is recommended by Rails official guide to use
bin/rails server
It looks like the bin/rails is referencing rails with additional stuff. What would be the additional benefits of using bin/rails compared to rails?
A second question is - I was used to use rails server, rails console, etc. rather than bin/rails server, bin/rails console. Without using bin/rails, would I lose anything (like misloading some libs, etc.)?
Thanks.
Put the following line in your bin/rails file: puts "In the bin/rails file"
Now run rails server. You'll likely see that the rails command is executing the bin/rails file.
I'm guessing the official guide suggests using bin/rails for two reasons:
Avoid using another instance of rails if your paths are not set up properly.
Speed - bin/rails seems to be a bit faster than just rails
I'm trying to deploy my first app with rails. I'm unable to deploy it, and I'm unhappy because the framework itself allowed me to develop really quickly the application, but I've only two days to make the deployment work :-(
I've installed and configured passenger following a tutorial (i'm using RVM).
When I access the page I have the following error page: traceback here (posted on pastebin to keep this post clear).
What is wrong?
i just uploaded the whole project on the production server, ran bundle install, rake db:create rake db:migrate and rake db:seed. Am I missing some step?
Why it doesn't run?
Developed using Rails 3.2.3 with Ruby 1.9.3.
Please help me to get it running.
Thanks,
Alex.
I have very little information about your problem but I have and idea what is going on. Check your belongs_to association in your event model if there is a class parameter replace it with class_name.
I am looking at rails plugins to help me modularize my application. I have some basic questions that I am confused about.
Can a rails plugin have its own DB? My application is very little traffic, for internal use, so I am fine with the idea of separate sqlite DB's for each plugin. When I do a "rails plugin new" even if I use --full, there is no database.yml generated. If I create one and do a rake db:create, no sqlite db is created.
Is there a good tutorial available for creating a rails plugin with rails 3.2? Most I find are older and use the enginex gem which I think is now built into rails.
Can you run your plugin as a standalone app for testing, i.e. using WEBrick? When I run "rails server" in my plugin directory, it just says "Error: Command not recognized".
I guess that's it, I am just confused on how to begin.
Creating Migrations
The Rails Guide "Getting Started with Engines" instructs you to use 'rails g model post' from the root directory for your engine.
Getting Started with Engines
If you do this, it will create the db/migrate folder for you with the migration inside of it.
$ rails g model post
invoke active_record
create db/migrate/20120517184738_create_my_engine_posts.rb
create app/models/my_engine/post.rb
invoke test_unit
create test/unit/my_engine/post_test.rb
create test/fixtures/my_engine/posts.yml
You can also generate migrations directly just the same, just as you do with a Rails app.
$ rails g migration AddMyEngineTable
invoke active_record
create db/migrate/20120517185241_add_my_engine_table.rb
Running Rails Server
The Rails Guide also states to run 'rails s' from test/dummy, not from the root of your engine directory.
I see that from an ASCIICast on the subject which covered Rails 3.1 RC5 that you used to be able to run 'rails s' from the root directory of your engine/gem. This is no longer the case.
From the Rails issue posted on Github three months ago it appears that they needed to keep the scope of the engine separate from the scope of the dummy app.
Issue #4894: Mountable Engines Rails File
In short run from the engine root:
test/dummy/script/rails s