Class: SakaiInfo::Quiz

Inherits:
SakaiObject show all
Includes:
ModProps
Defined in:
lib/sakai-info/quiz.rb

Direct Known Subclasses

PendingQuiz, PublishedQuiz

Constant Summary collapse

INACTIVE =

possible statuses

0
ACTIVE = 
1
DELETED =

aka ‘DEAD’ in the Scholar source

2
RETRACTED_FOR_EDITING = 
3

Instance Attribute Summary collapse

Attributes inherited from SakaiObject

#id

Class Method Summary collapse

Instance Method Summary collapse

Methods included from ModProps

included

Methods inherited from SakaiObject

#dbrow_only_serialization, #dbrow_serialization, descendants, #object_type_serialization, #serialize, #shell_serialization, #to_csv, #to_json, #to_yaml

Constructor Details

#initialize(dbrow, site = nil) ⇒ Quiz

a note about quizzes: they do not link directly back to sites instead, they link back only via the sam_authzdata_t table



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# File 'lib/sakai-info/quiz.rb', line 30

def initialize(dbrow, site = nil)
  @site = nil
  if site.is_a? String
    begin
      @site = Site.find(site)
    rescue ObjectNotFoundException
      @site = nil
    end
  elsif site.is_a? Site
    @site = site
  end

  @id = dbrow[:id]
  @title = dbrow[:title]
  @dbrow = dbrow

  if @site.nil?
    # published quizzes map to site_id via the OWN_PUBLISHED_ASSESSMENT function
    # pending quizzes map to site_id via the EDIT_ASSESSMENT function
    DB.connect[:sam_authzdata_t].select(Sequel.function(:distinct, :agentid)).
      where(:qualifierid => @id).
      where(:functionid => ["OWN_PUBLISHED_ASSESSMENT","EDIT_ASSESSMENT"]).
      all.each do |row|
      begin
        site = Site.find(row[:agentid])
        @site = site
      rescue ObjectNotFoundException
        @site = nil
      end
      break if not @site.nil?
    end
  end
end

Instance Attribute Details

#dbrow ⇒ Object (readonly)

Returns the value of attribute dbrow.



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# File 'lib/sakai-info/quiz.rb', line 14

def dbrow
  @dbrow
end

#site ⇒ Object (readonly)

Returns the value of attribute site.



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# File 'lib/sakai-info/quiz.rb', line 14

def site
  @site
end

#title ⇒ Object (readonly)

Returns the value of attribute title.



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# File 'lib/sakai-info/quiz.rb', line 14

def title
  @title
end

Class Method Details

.all_serializations ⇒ Object 



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# File 'lib/sakai-info/quiz.rb', line 198

def self.all_serializations
  [
   :default,
   :sections,
   :items,
  ]
end

.clear_cache ⇒ Object 



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# File 'lib/sakai-info/quiz.rb', line 22

def self.clear_cache
  @@cache = {}
end

.count_by_site_id(site_id) ⇒ Object 



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# File 'lib/sakai-info/quiz.rb', line 89

def self.count_by_site_id(site_id)
  {
    "pending_count" => PendingQuiz.count_by_site_id(site_id),
    "published_count" => PublishedQuiz.count_by_site_id(site_id)
  }
end

.find(id) ⇒ Object 



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# File 'lib/sakai-info/quiz.rb', line 64

def self.find(id)
  id = id.to_s
  if @@cache[id].nil?
    quiz = nil
    begin
      quiz = PendingQuiz.find(id)
    rescue ObjectNotFoundException
      begin
        quiz = PublishedQuiz.find(id)
      rescue ObjectNotFoundException
        raise ObjectNotFoundException.new(Quiz, id)
      end
    end
    @@cache[id] = quiz
  end
  @@cache[id]
end

.find_by_site_id(site_id) ⇒ Object 



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# File 'lib/sakai-info/quiz.rb', line 82

def self.find_by_site_id(site_id)
  {
    "pending" => PendingQuiz.find_by_site_id(site_id),
    "published" => PublishedQuiz.find_by_site_id(site_id)
  }
end

Instance Method Details

#access_control ⇒ Object 



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# File 'lib/sakai-info/quiz.rb', line 131

def access_control
  @access_control ||= self.access_control_class.find(self.id)
end

#access_control_summary_serialization ⇒ Object 



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# File 'lib/sakai-info/quiz.rb', line 180

def access_control_summary_serialization
  result = self.summary_serialization
  result.delete("id")
  result
end

#default_serialization ⇒ Object 



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# File 'lib/sakai-info/quiz.rb', line 135

def default_serialization
  result = {
    "id" => self.id,
    "title" => self.title,
    "site" => nil,
    "status" => self.status,
    "type" => self.quiz_type,
    "section_count" => self.section_count,
    "item_count" => self.item_count,
    "attempt_count" => nil,
    "access_control" => self.access_control.serialize(:quiz_summary)
  }
  if not self.site.nil?
    result["site"] = self.site.serialize(:summary)
  end
  if self.respond_to? :attempt_count
    result["attempt_count"] = self.attempt_count
  else
    result.delete("attempt_count")
  end
  result
end

#item_count ⇒ Object 



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# File 'lib/sakai-info/quiz.rb', line 123

def item_count
  @item_count ||= self.item_class.count_by_quiz_id(self.id)
end

#items ⇒ Object 



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# File 'lib/sakai-info/quiz.rb', line 127

def items
  @items ||= self.item_class.find_by_quiz_id(self.id)
end

#items_serialization ⇒ Object 



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# File 'lib/sakai-info/quiz.rb', line 192

def items_serialization
  {
    "items" => self.items.collect { |i| i.serialize(:quiz_summary) }
  }
end

#quiz_type ⇒ Object 



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# File 'lib/sakai-info/quiz.rb', line 96

def quiz_type
  nil
end

#section_count ⇒ Object 



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# File 'lib/sakai-info/quiz.rb', line 115

def section_count
  @section_count ||= self.section_class.count_by_quiz_id(@id)
end

#sections ⇒ Object 



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# File 'lib/sakai-info/quiz.rb', line 119

def sections
  @sections ||= self.section_class.find_by_quiz_id(@id)
end

#sections_serialization ⇒ Object 



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# File 'lib/sakai-info/quiz.rb', line 186

def sections_serialization
  {
    "sections" => self.sections.collect{|s|s.serialize(:quiz_summary)}
  }
end

#site_summary_serialization ⇒ Object 



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# File 'lib/sakai-info/quiz.rb', line 172

def site_summary_serialization
  {
    "id" => self.id,
    "title" => self.title,
    "status" => self.status,
  }
end

#status ⇒ Object 



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# File 'lib/sakai-info/quiz.rb', line 105

def status
  case @dbrow[:status].to_i
  when INACTIVE then "inactive"
  when ACTIVE then "active"
  when DELETED then "deleted"
  when RETRACTED_FOR_EDITING then "retracted for editing"
  else "unknown status '#{@dbrow[:status].to_i}'"
  end
end

#summary_serialization ⇒ Object 



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# File 'lib/sakai-info/quiz.rb', line 158

def summary_serialization
  result = {
    "id" => self.id,
    "title" => self.title,
    "site_id" => nil,
    "status" => self.status,
    "type" => self.quiz_type
  }
  if not self.site.nil?
    result["site_id"] = self.site.id
  end
  result
end