CODEWITHSUNDEEP
ruby-on-railsrubyrunner
Juan P Reyes
Juan P Reyes

Reputation: 87

Why is Rails runner not returning a result?

I am having problems with the Rails runner. When I try to use if, even by command line, it does nothing! it doesn't show error messages, nor results from actions.

For example, if I try 

rails runner Credit.count

having defined the model Credit, and the method count as 

Credit.first.update_attribute(:estado, "En proceso")

or even simpler tasks, the runner does nothing!

I've tried saying that the environment is development, but nothing works. Does anyone has any insights? Am I doing something wrong?

Edit: I am watching the database, that's the problem, there is no update. I changed the value of the column "estado" for the first element to something other than "En proceso", however, no matter how many times I use the runner, the db doesn't show any change at all.

Upvotes: 1

Views: 1862

Answers (3)

Juan P Reyes
Juan P Reyes

Reputation: 87

Turns out I am an idiot.

First, I had to change the name of the method, calling Credit.count calls the default count method, so I changed it to myMethod.

After that, I was able to use puts function and update the database easily :)

Upvotes: 0

pangpang
pangpang

Reputation: 8821

rails runner: runner runs Ruby code in the context of Rails non-interactively

update_attribute : it only return true or false, if you want to output the result, you can use "puts" or "p".

For example, 

$ rails r "User.first" #no output, even it will return a user object
$ rails r "puts User.first" # you can use "puts" get the output
#<User:0x007f8a2c76e608>

Upvotes: 2

Igor Guzak
Igor Guzak

Reputation: 2165

if you just written Credit.first.update_attribute(:estado, "En proceso") in console, you shouldn't have results, but you could see result in DB, for checking if update_attribute really update it you could write as update_attribute! also you could just write:

p Credit.first.update_attribute(:estado, "En proceso") which should print true or false to console

Upvotes: 0

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