更新一下写法 和 相关的文档

README.md

@@ -41,7 +41,7 @@ acts_as_followable
 acts_as_followable
 
 #找出某个模型关注我的所有的对象
-Article.followers_by_type('User')
+Article.followers_by_type(User)
 ```
 
 acts_as_follower
@@ -54,8 +54,8 @@ User.first.follow(Article.first)
 User.first.unfollow(Article.first)
 # 查看是否关注某个对象
 User.first.follow?(Article.first)
-# 查看关注模型的所有对象 
-User.first.followings('Article')
+# 查看关注模型的所有对象
+User.first.followings(Article)
 ```
 以上是目前实现的功能 还有黑名单等功能待实现
 ## License

acts_as_followable.gemspec

@@ -27,8 +27,8 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
-  spec.add_development_dependency "bundler", "~> 1.12"
+  spec.add_development_dependency "bundler", "~> 1.16"
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency "rspec", "~> 3.0"
-  spec.add_development_dependency "rails", "~> 4.0"
+  spec.add_development_dependency "rails", "~> 5.0"
 end

lib/acts_as_followable/followable.rb

@@ -22,13 +22,12 @@ module ActsAsFollowable
       end
 
       def followers_by_type(follower_type, options = {})
-        klass = follower_type.constantize
         ids = Follow.
           where('followable_id' => self.id,
                 'followable_type' => class_name(self),
                 'follower_type' => follower_type
         ).pluck('follower_id')
-        return klass.find(ids)
+        return follower_type.find(ids)
       end
     end
   end
@@ -64,7 +63,7 @@ module ActsAsFollowable
       end
 
       def followings(followable_type)
-        return followable_type.constantize.where(id: self.follows.where(followable_type: followable_type).pluck(:followable_id))
+        return followable_type.where(id: self.follows.where(followable_type: followable_type).pluck(:followable_id))
       end
 
       private