adding concerns methods

app/models/concerns/followable.rb

@@ -5,4 +5,16 @@ module Followable
     has_many :follows, as: :followable
   end
 
+  def follow(user)
+    Follow.create(user: user, followable: self)
+  end
+
+  def unfollow(user)
+    Follow.where(user: user, followable: self).destroy_all
+  end
+
+  def following?(user)
+    !follows.where(user: user).blank?
+  end
+
 end
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app/models/concerns/sociable.rb

@@ -8,4 +8,16 @@ module Sociable
     has_many :shares, as: :shareable
   end
 
+  def liked?(user)
+    !likes.where(user: user).blank?
+  end
+
+  def like(user)
+    Like.create(user: user, likeable: self)
+  end
+
+  def dislike(user)
+    Like.where(user: user, likeable: self).destroy_all
+  end
+
 end
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