31 Markdown and Emoji with the html-pipeline gem
Common Features Series
1. Liking Posts 2. Markdown and Emoji with the html-pipeline gem 3. Comments With Polymorphic Associations 4. Activity Feed From Scratch 5. @Mentions, Autocomplete, Notifications, and Links 6. Scheduling Posts 7. In-App Navbar Notifications 8. Repost / Retweet / Reblog 9. Message Templates 10. Improving In-App Notifications 11. Devise Masquerade as another User 12. Select Or Create Field With Selectize.js 13. Preferences & Settings with ActiveRecord::Store 14. Global Autocomplete Search 15. Charts with Chartkick and Groupdate 16. Analytics with Segment 17. Tracking Metrics with Ahoy and Blazer 18. Sortable Drag and Drop 19. Using the Trix Editor plus File Upload Attachments 20. Administrate Custom Fields and the Trix Editor 21. Handling Inbound Email Parsing with Rails 22. Two Factor Authentication With Devise 23. Error Tracking with Errbit 24. A/B Split Testing with the Split gem 25. Handle 404s Better Using Rescue_from 26. Undo Sending Button like GMailEpisode 32 · November 14, 2014
Learn how to format text in Markdown using the html-pipeline gem
Discussion
Awesome episode! I've used https://rubygems.org/gems/p... but html-pipeline looks like a great alternative. Loving the emojis !!
The SyntaxHighlightFilter depends upon github-linguist that depends upon pygments.rb so behind the scenes you'll be using the same tools. :)
Ah!! Very cool. I'll definitely have to give this gem a shot in the next project. =]
I would do the conversion from the raw markdown the user entered into sanitised HTML on save and store both the original user content (for editing etc) and html in the database. This means there is hardly any computation when your load the forum. The same could be accomplished by caching the page or fragment caching but I think this is a better solution.
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ep! The emoji asset root cdn link seems expired. The more permanent way is to follow the https://github.com/github/g... steps copying the images to the public/images. The asset root is then localhost:3000/images/.
Thanks for the tip! I was wondering how long Github would allow people to use their assets.
@excid3:disqus I refactored the markdownify method into a decorator instead of putting it in helpers. Admittedly I did it for practice generating decorators, but what is your opinion on the design decision?
I usually go for simplicity and don't use decorators for something like this. It's just a single method and I've already got a helper available so putting it there makes sense to me.
I find decorators are great for more complex things that manipulate record data into something more visible. A contrived example is a UserDecorator that has a "name" attribute that combines the "first_name" and "last_name" fields and does similar things for addresses. That rarely belongs in a model but it's a bit more logic than you'd want in a bunch of separate helper methods.
This cast is awesome, thanks. On Github, when you start typing the emoji name or mention (i.e., when you type ":hea..." or "@..." it pops up suggestion engine that allows you to choose what you want - a kind of auto-completion. any idea on how to implement something like that? I earched the documentation but couldn't find anything. of-course, the idea is to get some "real time" feedback and not just after you "pot" the mesage.
Thanks
I've used At.js in the past and it has worked quite well. http://ichord.github.io/At.js/
Any idea how to turn the Auto link to make a new tab, ie target = blank
I've had to do this before. I think you have to pass in an option into the autolink plugin (or copy it and write your own that uses target blank. Can't remember off the top of my head but I did ask about it in an issue on the Github repository.
Thank you for the video :) check that https://github.com/tibastra... it may help you too ;)
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