1 class StorySheet < Pettanr::Content
6 validates :story_id, :presence => true, :numericality => true, :existence => {:both => false}
7 validates :sheet_id, :presence => true, :numericality => true, :existence => {:both => false}
8 validates :author_id, :presence => true, :numericality => true, :existence => {:both => false}
9 validates :t, :presence => true, :numericality => {:greater_than_or_equal_to => 0}
21 def overwrite operators
22 return false unless operators.author
23 self.author_id = operators.author.id
26 def visible? operators
27 return false unless super
28 self.owner_model.visible? operators
36 'story_sheets.updated_at desc'
39 def self.play_sheet_where sid
40 ['story_sheets.story_id = ?', sid]
43 def self.page prm = nil
48 def self.play_sheet story, operators, page = 1
49 ss = StorySheet.where(self.play_sheet_where(story.id)).includes(StorySheet.list_opt).order('story_sheets.t').offset(page -1).limit(1).first
52 Sheet.show(ss.sheet.id, operators)
61 def self.play_paginate story, page
62 Kaminari.paginate_array(Array.new(StorySheet.where(self.play_sheet_where(story.id)).includes(StorySheet.list_opt).count, nil)).page(page).per(1)
76 def self.list_json_opt
80 :sheet => {:include => {:author => {}}}
94 def self.show_json_opt
98 :sheet => {:include => {:author => {}}}
106 def story_sheet_as_json au
107 panel_include = if self.panel and self.panel.visible?(au)
108 {:include => {:author => {}}, :methods => :elements}
110 {:include => {:author => {}}}
112 self.to_json({:include => {:scroll => {:include => {:author => {}}}, :author => {}, :panel => panel_include}})
115 def self.list_as_json_text ary, au
116 '[' + ary.map {|i| i.story_sheet_as_json(au) }.join(',') + ']'
119 def self.new_t story_id
120 r = StorySheet.max_t(story_id)
121 r.blank? ? 0 : r.to_i + 1
124 def self.top_sheet story, author
125 StorySheet.play_list(story, author).first
128 def self.max_t story_id
129 StorySheet.maximum(:t, :conditions => ['story_id = ?', story_id])
132 def self.find_t story_id, t
133 StorySheet.find(:first, :conditions => ['story_id = ? and t = ?', story_id, t])
136 def self.collect_t story_sheet
137 r = StorySheet.find(:all, :conditions => ['story_id = ?', story_sheet.story_id], :order => 't')
143 ary.compact.sort.each do |t|
144 break false unless t == i
147 ary.compact.size == i
150 def self.validate_t story_sheet
151 StorySheet.serial?(StorySheet.collect_t(story_sheet))
155 StorySheet.update_all('t = t + 1', ['story_id = ? and t >= ?', self.story_id, self.t])
158 def lesser_shift old_t
159 self.t = 0 if self.t < 0
160 StorySheet.update_all('t = t + 1', ['story_id = ? and (t >= ? and t < ?)', self.story_id, self.t, old_t])
163 def higher_shift old_t
164 nf = StorySheet.find_t(self.story_id, self.t)
165 max_t = StorySheet.max_t(self.story_id).to_i
166 self.t = max_t if self.t > max_t
167 StorySheet.update_all('t = t - 1', ['story_id = ? and (t > ? and t <= ?)', self.story_id, old_t, self.t])
170 def update_shift old_t
178 def rotate old_t = nil
181 self.t = StorySheet.new_t self.story_id
188 self.update_shift old_t
194 return nil if self.story_id == nil or self.sheet_id == nil
195 self.story.own?(operators) and self.sheet.usable?(operators)
198 def store operators, old_t = nil
200 StorySheet.transaction do
201 case self.allow? operators
205 raise ActiveRecord::Forbidden
209 raise ActiveRecord::Rollback unless res
210 res = StorySheet.validate_t(self)
212 self.errors.add :t, 'unserialized'
213 raise ActiveRecord::Rollback
219 def destroy_and_shorten
221 StorySheet.transaction do
222 StorySheet.update_all('t = t - 1', ['story_id = ? and (t > ?)', self.story_id, self.t])
223 raise ActiveRecord::Rollback unless self.destroy