I've been long time investigating how to generate complex .pdf files (many images and 30 pages aprox). from a html web, of my rails application.
At the end I realized than the best option is wkhtmltopdf from command line.
using pdfKit gem don't work in production, but it works in development
using wkhtmltopdf from command line, works in development but neither in production.
I have read a lot of issues with wkhtmltopdf, so I abandon use wkhtmltopdf getting info from production web server. --> Instead I have created a new environment "genera_pdf" to run in production database, with development configuration (assets, cache..etc)
And now I need to run some proces than execute this:
1) RAILS_ENV=genera_pdf rails s
2) wkhtmltopdf localhost:3000 result.pdf
3) stops (CTRL+C) rails s
If this is achievable, Whats the best way to do this in Linux?
I'm absolutly missed...with rake tasks? or rails runner? or Cron-task?
Thanks a lot
Related
I ssh copied a rails app from a staging server because the development repository has been lost. My goal is to create a new development code base using the deployed code as a source. So far I have removed a hidden .bundle folder and replaces several aliases with folders and files. I then ran bundle install. For the database I did a sql dump from staging and used it to build a development database. I think I'm ready to run rails server. But when I try to run rails server in the base directory. It gives me the rails command line help as if I was running rails s in a directory with no app.
I'm not even sure if it is possible to reverse a deploy this way. I've looked at the rails guide on the app initialization process and all the files seem to be in place.
Remember that for Rails to start up, you need bin/rails, bin/bundle, config/boot, etc.
If you restore those files, it should work again.
I have a complete ruby project on my system that I downloaded from github.com and I want to run it on my Windows machine.
I have already installed Ruby and Rails on my system, but I have no idea how to run this project. The directory of this project is something like:
C:\Users\{username}\Desktop\BitcoinFundi\BitcoinFundi
How would I run this project on my system?
To run your Ruby on Rails application, use the following command:
rails server
This will start the server and you will be able to access the application in your browser at http://localhost:3000. Port 3000 is default and you can change it in the application settings.
To run a Ruby script use:
ruby name_of_script.rb
You should check out various resources and tutorials on getting started with rails.
As you say in your comment this is your first experience with Ruby on Rails, I think you should follow through chapter 1 and 2 (at least) of Ruby on Rails Tutorial. After that you should have a better understanding of how you start up a rails app and configure the DB. You also need a bunch of other libraries and software such as mysql from the sounds of it.
You should also read Getting Started with Rails. Section 4 covers how to start the default rails server.
Here is a guide on setting up a Rails environment for Windows, which is one of many guides, that shows you some of the needed steps to get a fully working environment.
So, I have an app deployed on Heroku, and I'm trying to populate the database on the app through a script I wrote. I have the database in a text file, and the script runs through the file and populates the database. I don't want to push the database file to the heroku server, since it's a very large file.
Is there any way to do this on Heroku? It works fine locally, but I can't get it to work on the Heroku server.
I've tried
heroku run rails runner PATH/TO/SCRIPT LOCAL/PATH/TO/DATABASE --app my_app
to no avail.
To run a local script on Heroku:
irbify.rb script.rb | heroku run rails console --app=my_app
irbify.rb is a silly tiny script I wrote to convert a script to a single eval statement.
Regarding passing data: you can serialize it in some form and put it inside script.
Hope it helps someone.
UPDATE: this does not work well anything beyond trivial datasets.
You can also upload your script to a gist and then do:
binding.eval(open("your gist raw url").read)
I had to use global variables ($dollar_prefixed) since the context would not get filled with the variables (using Pry), otherwise it went well.
I have a JRuby on Rails application, which is usually deployed as war to Tomcat. In development mode we use either WEBrick or trinidad (usually first). Now we are considering using Toquebox.
I was able to deploy app using Torquebox, but I wonder where can I find development logs (things like request/response details, executed SQL queries etc). I got used to that stuff. JBoss'es console, boot.log and server.log don't contain those - only torquebox specific logging.
Thanks
When you are currently in your applications directory, use
$ less log/development.log
For every enviorement: env
$ less log/<env>.log
For following it (as it appends) use:
$ tail -f log/<env>.log
I'm learning Ruby on Rails. At the moment I'm just running my site locally with rails server in the OS X Terminal. What changes when a Rails site is run on a production box?
Is the site still started with rails server?
Any differences with how the db is setup?
Note: I'm running Rails 3.
A rails app can be run in production calling rails server -e production, although 99% of the time you'll be serving on something like passenger or thin instead of WEBrick, which means there's a different command to start the server. (thin start -e production for instance)
This is a complicated question, but the best place to start learning about the differences would be to look at the specific environment.rb files. When rails boots up it starts with the environment file that matches the called environment, ie if you start it in development it begins by loading your development.rb file, or if you're in production it will load the production.rb file. The differences in environments are mostly the result of these differences in the various environment config files.
Basically if a Rails 3.1 app is in production mode, then by default it is not going to be compiling assets on the fly, and a lot of caching will be going on that isn't happening in development. Also, when you get error messages they will be logged but not rendered to the user, instead the static error page from your public directory will be used.
To get more insight into this, I would suggest reading the relevant rails guides:
Rails Initialization Guide: http://guides.rubyonrails.org/initialization.html
Rails Configuration Guide: http://guides.rubyonrails.org/configuring.html
There are two contexts you can use the word "production" here. One of them is running the server in production mode. You can do this locally by,
RAILS_ENV=production ./script/server
The configuration for this is picked up from config/environments/production.rb. Try comparing this file with config/environments/development.rb. There are only subtle differences like caching classes. Development mode makes it easier so that it will respond to any changes you make instantly. Plus there are two different databases (by default) will be used namely yourproject_development and yourproject_production if you choose to run your server in either of these modes.
On the other hand, rails deployment to a production box is something different. You will need to pick your server carefully. You may have to deal with a deployment script may be capistrano. You may also need a load balancer such as netgear. The database also may require a deep consideration like size expectation, master/slave clustering etc.,
Note: I have never used Rails 3. This answer is biased towards 2.3.x.