How to Patch the Console?

[hartmut bischoff]

Hi everbody,

I am working on a Rails Project using OrientDB as Database ( https://github.com/topofocus/active-orient )

This gem initializes any available database-class and assigns it to model-classes.

For me its convenient to  recognize, which database-classes are found, when starting the console.

Thus I patched the source in railties/rails/lib/commands/console.rb 

Obviously, I am not happy with this dirty approach. 

How is this done properly? 

in detail:

I want to execute some ruby-code after any initialization of the core and before the first command can be entered.

This code prints out some status information.

Any help is appreciated

greetings from Stuttgart

hartmut 

[Marco Antonio Almeida]

Hi Hartmut,

My suggestion would be to add your code in the initialisers folder, something like config/initializers/console.rb and this will run after Rails has initialised its environment.

However this will run every time you run a rails or rake command, so to avoid that you could add something like this to your console initialiser: 

if Rails.const_defined?("Console") 

   # your code here

end

And this will run only if you are on a Rails console.

When I tried the code myself I had some problems with the binaries generated by spring, so you might need to update them if it doesn't work. rake rails:update:bin or rails app:update:bin if you're on Rails 5.

Hope it works.

Kind regards,

/ Marco

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[Frederick Cheung]

In application.rb you can put

console do

  #only executed when booting console

end

We use this to inject some helper methods into console sessions

Fred

 

[hartmut bischoff]

This works perfectly if inserted in the application-block. 

Thanks alot.

[hartmut bischoff]

I added your Input to the documentation in  https://github.com/topofocus/active-orient/blob/master/rails.md