Threadable Comments

Allows for threaded comments to be added to different models while comment hierarchy is handled via the ancestry gem (uses a materialised path pattern).

Install

In your Gemfile, add:

gem 'threadable_comments'

and run bundle install.

Migrations

To install:
```
  rails generate threadable_comments:migration
```
This will generate the migration script necessary for the table

Usage

class Article < ActiveRecord::Base
  has_threadable_comments
end

Add a comment to a model instance, for example an Article:

  @user_who_commented = @current_user
  @article.add_comment "This is my comment!", @user_who_commented

To reply to a comment:

  @comment.reply = "This is a reply!", @user_who_commented

To retrieve all comments for an article, including child comments:
```
  @all_comments = @article.comments
```
To retrieve only the root comments without their child comments:
```
  @root_comments = @article.root_comments
```
To check if a comment has children:
```
  @comment.has_children?
```
To get a comment's parent:
```
  @comment.parent
```
To verify the number of direct children a comment has:
```
  @comment.children.count
```
To verify the number of children and grand-children a comment has:
```
  @comment.descendants.count
```
To retrieve a comment's children:
```
  @comment.children
```

Tips

Once you have a comment in your hands, you can use all the methods and scope of the ancestry gem to access children and parents of the comment.

Credits

Inspired from act_as_commentable_with_threading

threadable_comments