76 lines
2.2 KiB
Ruby
76 lines
2.2 KiB
Ruby
class Page < ActiveRecord::Base
|
|
validates_format_of :name, :with => /^[\w\. ]+$/
|
|
validates_uniqueness_of :name
|
|
|
|
has_many :comments, :order => 'created_at ASC', :dependent => :destroy
|
|
has_and_belongs_to_many :tags, :order => 'tags.name ASC'
|
|
belongs_to :author
|
|
attr_protected :author_id
|
|
has_and_belongs_to_many :pages, :join_table => 'wiki_words', :foreign_key => :source_id, :class_name => 'Page', :association_foreign_key => :destination_id
|
|
has_and_belongs_to_many :pages_that_link_to_me, :join_table => 'wiki_words', :foreign_key => :destination_id, :association_foreign_key => :source_id, :class_name => 'Page'
|
|
|
|
before_create :set_author_id
|
|
before_save :sanitize_department
|
|
after_save :update_wiki_words
|
|
after_save :destroy_cache
|
|
|
|
def self.exists?(name)
|
|
!self.find_by_name(name).nil?
|
|
end
|
|
|
|
def tag_names
|
|
self.tags.collect { |t| t.name }.join(' ')
|
|
end
|
|
|
|
def tag_names=(newtags)
|
|
tag_name_ary = newtags.split if newtags.is_a?(String)
|
|
tag_name_ary ||= newtags
|
|
new_tags = []
|
|
tag_name_ary.each do |tname|
|
|
t = Tag.find_by_name tname
|
|
t ||= Tag.create :name => tname
|
|
new_tags << t
|
|
end
|
|
self.tags = new_tags
|
|
end
|
|
|
|
def self.popular_tags(limit = nil)
|
|
query = "SELECT tags.id, tags.name, count(*) AS count FROM pages_tags, tags, pages WHERE tags.id = tag_id AND pages_tags.page_id = pages.id GROUP BY tags.id, tags.name ORDER BY count DESC"
|
|
query << " LIMIT #{limit}" unless limit.nil?
|
|
Tag.find_by_sql(query).sort { |a, b| a.name <=> b.name }
|
|
end
|
|
|
|
def cache_name
|
|
"RedCloth_#{self.id}"
|
|
end
|
|
|
|
def self.wiki_word_pattern
|
|
/\[\[([A-Za-z0-9 ]+)\]\]/
|
|
end
|
|
|
|
protected
|
|
|
|
def sanitize_department
|
|
self.department.to_s.gsub!(/[^\w']/, '_')
|
|
self.department.to_s.gsub!(/__+/, '_')
|
|
true
|
|
end
|
|
|
|
def set_author_id
|
|
self.author_id ||= Application.current_author_id
|
|
end
|
|
|
|
def update_wiki_words
|
|
self.pages.clear
|
|
self.description.gsub(Page.wiki_word_pattern) do |match|
|
|
p = Page.find_by_name($1) rescue nil
|
|
WikiWord.create :source_id => self.id, :destination_id => p.id if p
|
|
end
|
|
end
|
|
|
|
def destroy_cache
|
|
Cache.delete(self.cache_name)
|
|
self.pages_that_link_to_me.each { |p| Cache.delete(p.cache_name) }
|
|
end
|
|
end
|