content_preprocessors.md

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Text preprocessors

TheComments designed for using with text preprocessors: Textile, Markdown, Sanitize, Coderay etc.

That is why Comment model has 2 fields for user input: raw_content and content

class CreateComments < ActiveRecord::Migration
  def change
    create_table :comments do |t|
    # ...
    
    t.text :raw_content
    t.text :content
      
    # ...
    end
  end
end

raw_content - field with original user's input

content - field with processed user's input

---

before_save :prepare_content - provides processing of raw user's input

By default prepare_content looks like this:

  def prepare_content
    self.content = self.raw_content
  end

I think every developer should redefine this behaviour. To do this you should to use following instructions.

Comment Model customization

invoke TheComments generator

bundle exec rails g the_comments models

This will create app/models/comment.rb

class Comment < ActiveRecord::Base
  include TheCommentsBase

  # ---------------------------------------------------
  # Define your filters for content
  # Expample for: gem 'RedCloth', gem 'sanitize'
  # your personal SmilesProcessor

  # def prepare_content
  # text = self.raw_content
  # text = RedCloth.new(text).to_html
  # text = SmilesProcessor.new(text)
  # text = Sanitize.clean(text, Sanitize::Config::RELAXED)
  # self.content = text
  # end
  # ---------------------------------------------------
end

Just redefine prepare_content for your purposes