diaspora/app/presenters/post_presenter.rb

59 lines
1.3 KiB
Ruby

require File.join(File.dirname(__FILE__), '..', '..', 'lib', 'template_picker')
class PostPresenter
attr_accessor :post, :current_user
def initialize(post, current_user = nil)
self.post = post
self.current_user = current_user
end
def to_json(options = {})
{
:post => self.post.as_api_response(:backbone).update(
{
:user_like => self.user_like,
:next_post => self.next_post_url,
:previous_post => self.previous_post_url
}),
:templateName => TemplatePicker.new(self.post).template_name
}
end
def user_like
return unless self.current_user.present?
if like = Like.where(:target_id => self.post.id, :target_type => "Post", :author_id => current_user.person.id).first
like.as_api_response(:backbone)
end
end
def next_post_url
if n = next_post
Rails.application.routes.url_helpers.post_path(n)
end
end
def previous_post_url
if p = previous_post
Rails.application.routes.url_helpers.post_path(p)
end
end
def next_post
post_base.next(post)
end
def previous_post
post_base.previous(post)
end
protected
def post_base
if current_user
current_user.posts_from(self.post.author)
else
self.post.author.posts.all_public
end
end
end