diaspora/app/models/status_message.rb
2011-03-25 15:06:22 -07:00

153 lines
4.1 KiB
Ruby

# Copyright (c) 2010, Diaspora Inc. This file is
# licensed under the Affero General Public License version 3 or later. See
# the COPYRIGHT file.
class StatusMessage < Post
include Diaspora::Socketable
include Diaspora::Taggable
include YoutubeTitles
require File.join(Rails.root, 'lib/youtube_titles')
include ActionView::Helpers::TextHelper
acts_as_taggable_on :tags
extract_tags_from :raw_message
validates_length_of :text, :maximum => 1000, :text => "please make your status messages less than 1000 characters"
xml_name :status_message
xml_attr :raw_message
has_many :photos, :dependent => :destroy
validate :message_or_photos_present?
attr_accessible :text
serialize :youtube_titles, Hash
before_save do
get_youtube_title text
end
before_create :build_tags
def text(opts = {})
self.formatted_message(opts)
end
def raw_message
read_attribute(:text)
end
def raw_message=(text)
write_attribute(:text, text)
end
def formatted_message(opts={})
return self.raw_message unless self.raw_message
escaped_message = opts[:plain_text] ? self.raw_message: ERB::Util.h(self.raw_message)
mentioned_message = self.format_mentions(escaped_message, opts)
self.format_tags(mentioned_message, opts)
end
def format_mentions(text, opts = {})
people = self.mentioned_people
regex = /@\{([^;]+); ([^\}]+)\}/
form_message = text.gsub(regex) do |matched_string|
person = people.detect{ |p|
p.diaspora_handle == $~[2] unless p.nil?
}
if opts[:plain_text]
person ? ERB::Util.h(person.name) : ERB::Util.h($~[1])
else
person ? "<a href=\"/people/#{person.id}\" class=\"mention\">@#{ERB::Util.h(person.name)}</a>" : ERB::Util.h($~[1])
end
end
form_message
end
def mentioned_people
if self.persisted?
create_mentions if self.mentions.empty?
self.mentions.includes(:person => :profile).map{ |mention| mention.person }
else
mentioned_people_from_string
end
end
def create_mentions
mentioned_people_from_string.each do |person|
self.mentions.create(:person => person)
end
end
def mentions?(person)
mentioned_people.include? person
end
def notify_person(person)
self.mentions.where(:person_id => person.id).first.try(:notify_recipient)
end
def mentioned_people_from_string
regex = /@\{([^;]+); ([^\}]+)\}/
identifiers = self.raw_message.scan(regex).map do |match|
match.last
end
identifiers.empty? ? [] : Person.where(:diaspora_handle => identifiers)
end
def as_json(opts={})
{:guid => self.guid,
:id => self.id,
:author => self.author.as_json,
:photos => self.photos.as_json,
:created_at => self.created_at,
:updated_at => self.updated_at,
:raw_message => self.raw_message,
:text => self.text, }
end
def to_activity
<<-XML
<entry>
<title>#{x(self.formatted_message(:plain_text => true))}</title>
<content>#{x(self.formatted_message(:plain_text => true))}</content>
<link rel="alternate" type="text/html" href="#{self.author.url}p/#{self.id}"/>
<id>#{self.author.url}posts/#{self.id}</id>
<published>#{self.created_at.xmlschema}</published>
<updated>#{self.updated_at.xmlschema}</updated>
<activity:verb>http://activitystrea.ms/schema/1.0/post</activity:verb>
<activity:object-type>http://activitystrea.ms/schema/1.0/note</activity:object-type>
</entry>
XML
end
def as_json(opts={})
opts ||= {}
if(opts[:format] == :twitter)
{
:id => self.guid,
:text => self.formatted_message(:plain_text => true),
:entities => {
:urls => [],
:hashtags => self.tag_list,
:user_mentions => self.mentioned_people.map{|p| p.diaspora_handle},
},
:source => 'diaspora',
:created_at => self.created_at,
:user => self.author.to_json(opts)
}
else
super(opts)
end
end
protected
def message_or_photos_present?
if self.text.blank? && self.photos == []
errors[:base] << 'Status message requires a message or at least one photo'
end
end
end