Module: Moodle2CC::Moodle2Converter::ConverterHelper

Included in:
AssessmentConverter, AssignmentConverter, BookConverter, CourseConverter, DiscussionConverter, FeedbackConverter, FileConverter, FolderConverter, GlossaryConverter, HtmlConverter, LabelConverter, Migrator, PageConverter, QuestionBankConverter, QuestionConverters::QuestionConverter, QuestionnaireConverter, SectionConverter, WikiConverter
Defined in:
lib/moodle2cc/moodle2converter/converter_helper.rb

Constant Summary collapse

INTRO_SUFFIX = 
'_book_intro'
CHAPTER_SUFFIX = 
'_chapter'
FOLDER_SUFFIX = 
'_folder'
PAGE_SUFFIX = 
'_page'
ASSESSMENT_SUFFIX = 
'_assessment'
CHOICE_ASSESSMENT_SUFFIX = 
'_choice_assessment'
FEEDBACK_ASSESSMENT_SUFFIX = 
'_feedback_assessment'
QUESTIONNAIRE_ASSESSMENT_SUFFIX = 
'_questionnaire_assessment'
ASSIGNMENT_SUFFIX = 
'_assignment'
COURSE_SUFFIX = 
'_course'
DISCUSSION_SUFFIX = 
'_discussion'
FILE_SUFFIX = 
'_file'
QUESTION_BANK_SUFFIX = 
'_question_bank'
MODULE_SUFFIX = 
'_module'
GLOSSARY_SUFFIX = 
'_glossary'
SUMMARY_PAGE_SUFFIX = 
'_summary_page'
EXTERNAL_URL_SUFFIX = 
'_external_url'
LTI_SUFFIX = 
'_lti'
ACTIVITY_LOOKUP = 
{
  Moodle2::Models::Page => {suffix: PAGE_SUFFIX, content_type: CanvasCC::Models::ModuleItem::CONTENT_TYPE_WIKI_PAGE},
  Moodle2::Models::Wiki => {suffix: PAGE_SUFFIX, content_type: CanvasCC::Models::ModuleItem::CONTENT_TYPE_WIKI_PAGE},
  Moodle2::Models::Assignment => {suffix: ASSIGNMENT_SUFFIX, content_type: CanvasCC::Models::ModuleItem::CONTENT_TYPE_ASSIGNMENT},
  Moodle2::Models::Folder => {suffix: FOLDER_SUFFIX, content_type: CanvasCC::Models::ModuleItem::CONTENT_TYPE_WIKI_PAGE},
  Moodle2::Models::Forum => {suffix: DISCUSSION_SUFFIX, content_type: CanvasCC::Models::ModuleItem::CONTENT_TYPE_DISCUSSION_TOPIC},
  Moodle2::Models::BookChapter => {suffix: CHAPTER_SUFFIX, content_type: CanvasCC::Models::ModuleItem::CONTENT_TYPE_WIKI_PAGE},
  Moodle2::Models::Quizzes::Quiz => {suffix: ASSESSMENT_SUFFIX, content_type: CanvasCC::Models::ModuleItem::CONTENT_TYPE_QUIZ},
  Moodle2::Models::Choice => {suffix: CHOICE_ASSESSMENT_SUFFIX, content_type: CanvasCC::Models::ModuleItem::CONTENT_TYPE_QUIZ},
  Moodle2::Models::Feedback => {suffix: FEEDBACK_ASSESSMENT_SUFFIX, content_type: CanvasCC::Models::ModuleItem::CONTENT_TYPE_QUIZ},
  Moodle2::Models::Questionnaire => {suffix: QUESTIONNAIRE_ASSESSMENT_SUFFIX, content_type: CanvasCC::Models::ModuleItem::CONTENT_TYPE_QUIZ},
  Moodle2::Models::Section => {suffix: SUMMARY_PAGE_SUFFIX, content_type: CanvasCC::Models::ModuleItem::CONTENT_TYPE_WIKI_PAGE},
  Moodle2::Models::Label => {suffix: nil, content_type: CanvasCC::Models::ModuleItem::CONTENT_TYPE_CONTEXT_MODULE_SUB_HEADER},
  Moodle2::Models::Glossary => {suffix: GLOSSARY_SUFFIX, content_type: CanvasCC::Models::ModuleItem::CONTENT_TYPE_WIKI_PAGE},
  Moodle2::Models::ExternalUrl => {suffix: EXTERNAL_URL_SUFFIX, content_type: CanvasCC::Models::ModuleItem::CONTENT_TYPE_EXTERNAL_URL},
  Moodle2::Models::Resource => {suffix: nil, content_type: CanvasCC::Models::ModuleItem::CONTENT_TYPE_ATTACHMENT},
  Moodle2::Models::Lti => {suffix: LTI_SUFFIX, content_type: CanvasCC::Models::ModuleItem::CONTENT_TYPE_CONTEXT_EXTERNAL_TOOL}
}
MAX_TITLE_LENGTH = 
250

Instance Method Summary collapse

Instance Method Details

#activity_content_type(activity) ⇒ Object 



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# File 'lib/moodle2cc/moodle2converter/converter_helper.rb', line 90

def activity_content_type(activity)
  if lookup = ACTIVITY_LOOKUP[activity.class]
    lookup[:content_type]
  else
    raise "Unknown activity type: #{activity.class}"
  end
end

#generate_unique_identifier ⇒ Object 



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# File 'lib/moodle2cc/moodle2converter/converter_helper.rb', line 49

def generate_unique_identifier
  "m2#{SecureRandom.uuid.gsub('-', '')}"
end

#generate_unique_identifier_for(id, suffix = nil) ⇒ Object 



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# File 'lib/moodle2cc/moodle2converter/converter_helper.rb', line 73

def generate_unique_identifier_for(id, suffix = nil)
  unique_id = "m2#{Digest::MD5.hexdigest(id.to_s)}#{suffix}"
  id_set = Moodle2Converter::Migrator.unique_id_set
  if id_set.include?(unique_id)
    # i was under the impression that moodle ids would be unique themselves
    # but i have been apparently misinformed
    original_id = unique_id
    index = 0
    while id_set.include?(unique_id)
      index += 1
      unique_id = "#{original_id}#{index}"
    end
  end
  id_set << unique_id
  unique_id
end

#generate_unique_identifier_for_activity(activity) ⇒ Object 



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# File 'lib/moodle2cc/moodle2converter/converter_helper.rb', line 63

def generate_unique_identifier_for_activity(activity)
  if lookup = ACTIVITY_LOOKUP[activity.class]
    unique_id = generate_unique_identifier_for(activity.id, lookup[:suffix])
    Moodle2Converter::Migrator.activity_id_map[activity.hash] = unique_id
    unique_id
  else
    raise "Unknown activity type: #{activity.class}"
  end
end

#generate_unique_resource_path(base_path, readable_name, file_extension = 'html') ⇒ Object 



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# File 'lib/moodle2cc/moodle2converter/converter_helper.rb', line 43

def generate_unique_resource_path(base_path, readable_name, file_extension = 'html')
  file_name_suffix = readable_name ? Moodle2CC::CanvasCC::Models::Page.convert_name_to_url(readable_name) : ''
  ext = file_extension ? ".#{file_extension}" : ''
  File.join(base_path, generate_unique_identifier(), "#{file_name_suffix}#{ext}")
end

#get_unique_identifier_for_activity(activity) ⇒ Object 



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# File 'lib/moodle2cc/moodle2converter/converter_helper.rb', line 53

def get_unique_identifier_for_activity(activity)
  # use when we want to retrieve an existing id, not generate a new one
  id = Moodle2Converter::Migrator.activity_id_map[activity.hash]
  unless id
    puts "could not find matching id for #{activity.inspect}"
    id = generate_unique_identifier_for_activity(activity)
  end
  id
end

#truncate_text(text, max_length = nil, ellipsis = '...') ⇒ Object 



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# File 'lib/moodle2cc/moodle2converter/converter_helper.rb', line 102

def truncate_text(text, max_length = nil, ellipsis = '...')
  max_length ||= MAX_TITLE_LENGTH
  return text if !text || text.length <= max_length

  actual_length = max_length - ellipsis.length

  # First truncate the text down to the bytes max, then lop off any invalid
  # unicode characters at the end.
  truncated = text[0,actual_length][/.{0,#{actual_length}}/mu]
  truncated + ellipsis
end

#workflow_state(moodle_visibility) ⇒ Object 



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# File 'lib/moodle2cc/moodle2converter/converter_helper.rb', line 98

def workflow_state(moodle_visibility)
  moodle_visibility ? CanvasCC::Models::WorkflowState::ACTIVE : CanvasCC::Models::WorkflowState::UNPUBLISHED
end