Forem with Gemoji

1 - Intro.md

Forem + Gemoji / Kramdown

• https://github.com/radar/forem
• https://github.com/github/gemoji
• https://github.com/gettalong/kramdown

Live app: http://runnable.com/VAL1VuMjrGFur2yx/forem-gemoji-kramdown

2 - application.rb

# Gemoji

config.assets.paths << Emoji.images_path
config.assets.precompile << "emoji/*.png"

3 - application_helper.rb

module ApplicationHelper
  def add_emojify_and_kramdown(text)
    raw(Kramdown::Document.new(emojify(text)).to_html)
  end

  def emojify(text)
    h(text).to_str.gsub(/:([a-z0-9\+\-_]+):/) do |match|

      if emoji = Emoji.find_by_alias($1)

        # Insert emojis as Kramdown links

        # http://kramdown.gettalong.org/syntax.html#images

        '![' + $1 + '](' + asset_path("emoji/#{emoji.image_filename}") + ')'
      else
        match
      end
    end.html_safe if text.present?
  end
end

4 - _post.html.erb

<%#= forem_format(post.text) %>
<%= add_emojify_and_kramdown(post.text) %>

5 - Gemfile

gem 'kramdown'
gem 'gemoji', github: 'github/gemoji'

6 - seeds.rb

Forem::Category.create!(:name => 'General')

user = User.create(
  :email => "admin@example.com",
  :password => "admin1234"
)
user.forem_admin = true
user.save!
user.update_attribute(:forem_state, 'approved')

unless user.nil?
  forum = Forem::Forum.create(:category_id => Forem::Category.first.id, :name => "Default", :description => "Default forem created by install")

  topic1 = forum.topics.build({ :subject => "Apples", :posts_attributes => [:text => "Eat apples :smile:"] })
  topic1.user = user
  topic1.save!

  topic2 = forum.topics.build({ :subject => "Bananas", :posts_attributes => [:text => "Eat bananas :smile:"] })
  topic2.user = user
  topic2.save!

  topic3 = forum.topics.build({ :subject => "Oranges", :posts_attributes => [:text => "Eat oranges :smile:"] })
  topic3.user = user
  topic3.save!

  topic4 = forum.topics.build({ :subject => "Mangos", :posts_attributes => [:text => "Eat mangos :smile:"] })
  topic4.user = user
  topic4.save!
end