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A simple set of helpers allowing you to easily add follow/like/watch/stalk capabilities to any ActiveRecord model

connections 최신버젼 다운로드

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# Connections [![Build Status](https://secure.travis-ci.org/balvig/connections.png?branch=master)](http://travis-ci.org/balvig/connections)

Most social apps need some kind of follow/like/watch/stalk/etc
features that connects one model to another.

Instead of having to recreate this functionality for every project I
decided to create a gem that easily allows you to add these features
using any naming you prefer.

## Installation

Add the gem to the gemfile:
`gem "connections"`

Install migration:
`rake connections:install:migrations`

This generates a migration that creates a single join table for
keeping track of what is connected to what.

## Usage

Use `connects_with` to enable a model to connect to other models and
`connectable_with ` to allow a model to be connected to using
whatever naming scheme you prefer (follow, like, watch, etc)

```ruby
class User < ActiveRecord::Base
  connects_with :follow, :like
  connectable_with :follow
end

class Post < ActiveRecord::Base
  connectable_with :like
end
```

Depending on the naming scheme you choose Connections will try to figure out the
grammar and add appropriately named methods. For example in the case of
"Follow" and "Like" the following methods will be added:

```ruby
# Follow
user.follow(other_user) # Creates a 'Follow' connection from user -> other_user
user.unfollow(other_user) # Removes 'Follow' connection between user -> other_user
user.toggle_follow(other_user) # Toggles the connection on/off (useful for toggle buttons)
user.follows?(other_user) # Returns true if the user if following other_user
user.following(:user) # Returns a list of all the users the user is following
user.following.size # Returns a total count of followers of the user
other_user.followers(:user) #Returns a list of all the user's followers who are class 'User'
other_user.followers.size #Returns a total count of all the user's followers

# Like
user.like(post)
user.unlike(post)
user.toggle_like(post)
user.likes?(post)
user.liking(:post)
user.liking.size
post.likers(:user)
post.likers.size
```

That's it! If you want to add extra functionality to the join model (such
as using callbacks etc) you can explicitly define the model in your
project like this:

```ruby
class Follow < Connections::Connection
  ...
end
```

## Credits

This gem was inspired by [socialization](https://github.com/cmer/socialization) that although it didn't quite do what I needed is a pretty useful tool in itself.

## Copyright

connections

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