ensl.org/app/models/topic.rb
2014-04-13 12:16:51 +01:00

112 lines
2.7 KiB
Ruby

# == Schema Information
#
# Table name: topics
#
# id :integer not null, primary key
# title :string(255)
# user_id :integer
# forum_id :integer
# created_at :datetime
# updated_at :datetime
# state :integer default(0), not null
#
class Topic < ActiveRecord::Base
POSTS_PAGE = 30
STATE_NORMAL = 0
STATE_STICKY = 1
LATEST_PER_PAGE = 5
RULES = 12
include Extra
attr_protected :id, :updated_at, :created_at
attr_accessor :first_post
belongs_to :user
belongs_to :forum
has_one :lock, :as => :lockable
has_one :latest, :class_name => "Post", :order => "id DESC"
has_many :posts, :order => "id ASC", :dependent => :destroy
has_many :view_counts, :as => :viewable, :dependent => :destroy
scope :basic, :include => [:latest, { forum: :forumer }, :user]
scope :ordered, :order => "state DESC, posts.id DESC"
scope :recent,
:conditions => "forumers.id IS NULL AND posts.id = (SELECT id FROM posts AS P WHERE P.topic_id = topics.id ORDER BY id DESC LIMIT 1)",
:order => "posts.id DESC",
:group => "topics.id"
scope :latest_page,
lambda { |page| {:limit => "#{(page-1)*LATEST_PER_PAGE}, #{(page-1)*LATEST_PER_PAGE+LATEST_PER_PAGE}"} }
validates_presence_of :user_id, :forum_id
validates_length_of :title, :in => 1..50
validates_length_of :first_post, :in => 1..10000, :on => :create
after_create :make_post
acts_as_readable
def to_s
title
end
def record_view_count(ip_address, logged_in = false)
self.view_counts.create(:viewable => self, :ip_address => ip_address, :logged_in => logged_in)
self
end
def view_count
view_counts.length
end
def cache_key(key)
"/topics/#{id}/#{key}"
end
def cached_view_count
Rails.cache.fetch(cache_key('view_count'), expires_in: 24.hours) do
view_count
end
end
def cached_posts_count
Rails.cache.fetch(cache_key('posts'), expires_in: 12.hours) do
posts.count - 1
end
end
def make_post
c = posts.build
c.text = first_post
c.user = user
c.save!
end
def can_show? cuser
forum.can_show? cuser
end
def can_create? cuser
return false unless cuser
errors.add :bans, I18n.t(:bans_mute) if cuser.banned?(Ban::TYPE_MUTE) and forum != Forum::BANS
errors.add :bans, I18n.t(:registered_for_week) unless cuser.verified?
(Forum.available_to(cuser, Forumer::ACCESS_TOPIC).of_forum(forum).first and errors.size == 0)
end
def can_update? cuser
cuser and cuser.admin?
end
def can_destroy? cuser
cuser and cuser.admin?
end
def last_page
[((posts.count - 1) / POSTS_PAGE) + 1, 1].max
end
def states
{STATE_NORMAL => "Normal", STATE_STICKY => "Sticky"}
end
end