Rails: Undefined method `truncate' for main:Object

Question

I need to perform this in the rails console, following the instructions at Rails API ActionView::Helpers::TextHelper I already found a solution of my problem at the following Stackoverflow Discussion, but I though the question could be useful to be posted. If you want me to delete it, just tell me.

1. I wanted to create an ActionView::Helpers::TextHelper in my rails console

   texthelper = ActionView::Helpers::TextHelper
   => ActionView::Helpers::TextHelper
   

2. I create a string

   string = "I want to call the truncate method"
   => "I want to call the truncate method"
   

3. I want to call the truncate method, in my console on this string.

   truncate(string, length: 25, omission: '... (continued)')
   => "And they f... (continued)"
   

When I input in the console:

truncate("Once upon a time in a world far far away", length: 17, separator: ' ')

I receive

undefined method `truncate' for main:Object

The whole idea come from this post.. Undefined method `truncate' in model

Answer 1

I found the answer at the following discussion Undefined method `truncate' in model

I should have included the ActionView::Helpers::TextHelper in my rails console with the following command

include ActionView::Helpers::TextHelper 

Then I could call the truncate method.

truncate(string, length: 17, separator: ' ')
=> "this is a tesf..."

My understanding now is that with the include command, the methods from ActionView::Helpers::TextHelper are now available in the console. truncate method can be executed on text.