--- /dev/null
+class StorySheet < ActiveRecord::Base
+ belongs_to :author
+ belongs_to :story
+ belongs_to :sheet
+
+ validates :story_id, :presence => true, :numericality => true, :existence => {:both => false}
+ validates :sheet_id, :presence => true, :numericality => true, :existence => {:both => false}
+ validates :author_id, :presence => true, :numericality => true, :existence => {:both => false}
+ validates :t, :presence => true, :numericality => {:greater_than_or_equal_to => 0}
+
+ def supply_default
+ self.story_id = nil
+ self.sheet_id = nil
+ self.t = nil
+ end
+
+ def overwrite au
+ return false unless au
+ self.author_id = au.id
+ end
+
+ def own? roles
+ roles = [roles] unless roles.respond_to?(:each)
+ au = StorySheet.get_author_from_roles roles
+ return false unless au
+ self.author_id == au.id
+ end
+
+ def visible? roles
+ if MagicNumber['run_mode'] == 0
+ return false unless guest_role_check(roles)
+ else
+ return false unless reader_role_check(roles)
+ end
+ return true if self.story.own?(roles)
+ self.story.visible? roles
+ end
+
+ def self.default_sheet_size
+ 30
+ end
+
+ def self.max_sheet_size
+ 200
+ end
+
+ def self.offset cnt, prm = nil
+ offset = prm.to_i
+ offset = cnt - 1 if offset >= cnt
+ offset = cnt - offset.abs if offset < 0
+ offset = 0 if offset < 0
+ offset
+ end
+
+ def self.sheet_count cnt, prm = self.default_sheet_size
+ count = prm.to_i
+ count = self.max_sheet_size if count > self.max_sheet_size
+ count = self.default_sheet_size if count < 1
+ count
+ end
+
+ def self.default_page_size
+ 25
+ end
+
+ def self.max_page_size
+ 100
+ end
+
+ def self.page prm = nil
+ page = prm.to_i
+ page = 1 if page < 1
+ page
+ end
+
+ def self.page_size prm = self.default_page_size
+ page_size = prm.to_i
+ page_size = self.max_page_size if page_size > self.max_page_size
+ page_size = self.default_page_size if page_size < 1
+ page_size
+ end
+
+ def self.play_list_where cid
+ ['story_sheets.story_id = ?', cid]
+ end
+
+ def self.list_where
+ 'stories.visible > 0'
+ end
+
+ def self.mylist_where au
+ ['story_sheets.author_id = ?', au.id]
+ end
+
+ def self.himlist_where au
+ ['story_sheets.author_id = ? and stories.visible > 0', au.id]
+ end
+
+ def self.play_list story, author, offset = 0, limit = StorySheet.default_sheet_size
+ StorySheet.where(self.play_list_where(story.id)).includes(StorySheet.list_opt).order('story_sheets.t').offset(offset).limit(limit)
+ end
+
+ def self.list page = 1, page_size = self.default_page_size
+ StorySheet.where(self.list_where()).includes(StorySheet.list_opt).order('story_sheets.updated_at desc').offset((page -1) * page_size).limit(page_size)
+ end
+
+ def self.mylist au, page = 1, page_size = Author.default_story_sheet_page_size
+ StorySheet.where(self.mylist_where(au)).includes(StorySheet.list_opt).order('story_sheets.updated_at desc').offset((page -1) * page_size).limit(page_size)
+ end
+
+ def self.himlist au, page = 1, page_size = Author.default_story_sheet_page_size
+ StorySheet.where(self.himlist_where(au)).includes(StorySheet.list_opt).order('story_sheets.updated_at desc').offset((page -1) * page_size).limit(page_size)
+ end
+
+ def self.list_paginate page = 1, page_size = self.default_page_size
+ Kaminari.paginate_array(Array.new(StorySheet.where(self.list_where()).includes(StorySheet.list_opt).count, nil)).page(page).per(page_size)
+ end
+
+ def self.mylist_paginate au, page = 1, page_size = Author.default_story_sheet_page_size
+ Kaminari.paginate_array(Array.new(StorySheet.where(self.mylist_where(au)).includes(StorySheet.list_opt).count, nil)).page(page).per(page_size)
+ end
+
+ def self.himlist_paginate au, page = 1, page_size = Author.default_story_sheet_page_size
+ Kaminari.paginate_array(Array.new(StorySheet.where(self.himlist_where(au)).includes(StorySheet.list_opt).count, nil)).page(page).per(page_size)
+ end
+
+ def self.list_opt
+ {
+ :author => {},
+ :story => {
+ :author => {}
+ },
+ :sheet => {
+ :author => {},
+ }
+ }
+ end
+
+ def self.list_json_opt
+ {:include => {
+ :author => {},
+ :story => {:include => {:author => {}}} ,
+ :sheet => {:include => {:author => {}}}
+ }}
+ end
+
+ def self.show spid, roles
+ opt = {}
+ opt.merge!(StorySheet.show_opt)
+ res = StorySheet.find spid, opt
+ raise ActiveRecord::Forbidden unless res.visible?(roles)
+ res
+ end
+
+ def self.edit spid, au
+ opt = {}
+ opt.merge!(StorySheet.show_opt)
+ res = StorySheet.find spid, opt
+ raise ActiveRecord::Forbidden unless res.own?(au)
+ res
+ end
+
+ def self.show_opt
+ {:include => {
+ :author => {},
+ :story => {
+ :author => {}
+ },
+ :sheet => {
+ :author => {}
+ }
+ }}
+ end
+
+ def self.show_json_opt
+ {:include => {
+ :author => {},
+ :story => {:include => {:author => {}}} ,
+ :sheet => {:include => {:author => {}}}
+ }}
+ end
+
+ def self.new_t story_id
+ r = StorySheet.max_t(story_id)
+ r.blank? ? 0 : r.to_i + 1
+ end
+
+ def self.max_t story_id
+ StorySheet.maximum(:t, :conditions => ['story_id = ?', story_id])
+ end
+
+ def self.find_t story_id, t
+ StorySheet.find(:first, :conditions => ['story_id = ? and t = ?', story_id, t])
+ end
+
+ def self.collect_t story_sheet
+ r = StorySheet.find(:all, :conditions => ['story_id = ?', story_sheet.story_id], :order => 't')
+ r.map {|sp| sp.t}
+ end
+
+ def self.serial? ary
+ i = 0
+ ary.compact.sort.each do |t|
+ break false unless t == i
+ i += 1
+ end
+ ary.compact.size == i
+ end
+
+ def self.validate_t story_sheet
+ StorySheet.serial?(StorySheet.collect_t(story_sheet))
+ end
+
+ def insert_shift
+ StorySheet.update_all('t = t + 1', ['story_id = ? and t >= ?', self.story_id, self.t])
+ end
+
+ def lesser_shift old_t
+ self.t = 0 if self.t < 0
+ StorySheet.update_all('t = t + 1', ['story_id = ? and (t >= ? and t < ?)', self.story_id, self.t, old_t])
+ end
+
+ def higher_shift old_t
+ nf = StorySheet.find_t(self.story_id, self.t)
+ max_t = StorySheet.max_t(self.story_id).to_i
+ self.t = max_t if self.t > max_t
+ StorySheet.update_all('t = t - 1', ['story_id = ? and (t > ? and t <= ?)', self.story_id, old_t, self.t])
+ end
+
+ def update_shift old_t
+ if self.t > old_t
+ higher_shift old_t
+ else
+ lesser_shift old_t
+ end
+ end
+
+ def rotate old_t = nil
+ if self.new_record?
+ if self.t.blank?
+ self.t = StorySheet.new_t self.story_id
+ else
+ self.insert_shift
+ end
+ else
+ if self.t.blank?
+ else
+ self.update_shift old_t
+ end
+ end
+ end
+
+ def allow?
+ return nil if self.story_id == nil or self.sheet_id == nil
+ self.story.own?(self.author) and self.sheet.usable?(self.author)
+ end
+
+ def store old_t = nil
+ res = false
+ StorySheet.transaction do
+ case self.allow?
+ when true
+ self.rotate old_t
+ when false
+ raise ActiveRecord::Forbidden
+ else
+ end
+ res = self.save
+ raise ActiveRecord::Rollback unless res
+ res = StorySheet.validate_t(self)
+ unless res
+ self.errors.add :t, 'unserialized'
+ raise ActiveRecord::Rollback
+ end
+ end
+ res
+ end
+
+ def destroy_and_shorten
+ res = false
+ StorySheet.transaction do
+ StorySheet.update_all('t = t - 1', ['story_id = ? and (t > ?)', self.story_id, self.t])
+ raise ActiveRecord::Rollback unless self.destroy
+ res = true
+ end
+ res
+ end
+
+end
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