Like/Dislike Model Example Code

likes.rb

# Add given object to self's liked objects.
#
# @example
#
#   @user.like Post.first
#   @user.public_send('liked_posts') << Post.first
#   @uuse.liked_posts << Post.first
#
# @param obj [ApplicationRecord::Likeable] Any likeable record.

def like(obj)
  public_send("liked_#{obj.class.name.tabelize}") << obj
end

# Remove object from self's liked objects.
#
# @example
#
#   @user.unlike Post.first
#   @user.public_send('liked_posts').delete Post.first
#   @uuse.liked_posts.delete Post.first
#
# @param obj [ApplicationRecord::Likeable] Any likeable record.

def unlike(obj)
  public_send("liked_#{obj.class.name.tabelize}").delete obj
end