function quiz_schema in Quiz 6.2

Same name and namespace in other branches

1. 8.6 quiz.install \quiz_schema()
2. 8.4 quiz.install \quiz_schema()
3. 8.5 quiz.install \quiz_schema()
4. 6.6 quiz.install \quiz_schema()
5. 6.3 quiz.install \quiz_schema()
6. 6.4 quiz.install \quiz_schema()
7. 6.5 quiz.install \quiz_schema()
8. 7.6 quiz.install \quiz_schema()
9. 7 quiz.install \quiz_schema()
10. 7.4 quiz.install \quiz_schema()
11. 7.5 quiz.install \quiz_schema()

Implementation of hook_schema().

File

./quiz.install, line 24

Quiz install schema for installing the quiz module

Code

function quiz_schema() {

  /**
   * Connect all the quiz specific properties to the correct version of a quiz.
   */

  // Create the quiz node properties table
  $schema['quiz_node_properties'] = array(
    'fields' => array(
      'property_id' => array(
        'type' => 'serial',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'vid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'nid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'number_of_random_questions' => array(
        'type' => 'int',
        'size' => 'tiny',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'pass_rate' => array(
        'type' => 'int',
        'size' => 'tiny',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'summary_pass' => array(
        'type' => 'text',
        'length' => 65535,
      ),
      'summary_default' => array(
        'type' => 'text',
        'length' => 65535,
      ),
      'shuffle' => array(
        'type' => 'int',
        'size' => 'tiny',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'backwards_navigation' => array(
        'type' => 'int',
        'size' => 'tiny',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'feedback_time' => array(
        'type' => 'int',
        'size' => 'tiny',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'quiz_open' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'quiz_close' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'takes' => array(
        'type' => 'int',
        'size' => 'tiny',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'time_limit' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'quiz_always' => array(
        'type' => 'int',
        'size' => 'tiny',
        'not null' => TRUE,
        'default' => 0,
      ),
      'tid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
    ),
    'primary key' => array(
      'property_id',
    ),
  );

  /**
   * Both a quiz and a quiz question are nodes with versions.  A quiz is a parent node of a quiz question,
   * making the quiz question the child.
   *
   * The quiz_node_relationship table stores this relationship in a way that allows a quiz question to be
   * the child of multiple quizzes without losing version history.
   *
   * Future functionality will allow a quiz question to be a parent of another quiz question with the same
   * data model.  This will make adaptive quiz functionality possible without redesign.
   */

  // Create the quiz node relationship table
  $schema['quiz_node_relationship'] = array(
    'fields' => array(
      'parent_nid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'parent_vid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'child_nid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'child_vid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'question_status' => array(
        'type' => 'int',
        'size' => 'tiny',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 1,
      ),
    ),
    'primary key' => array(
      'parent_nid',
      'parent_vid',
      'child_nid',
      'child_vid',
    ),
  );

  /**
   * This connects all the quiz question specific properties to the correct version of a quiz question.
   */

  // Create the quiz node question properties table
  $schema['quiz_node_question_properties'] = array(
    'fields' => array(
      'nid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'vid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'number_of_answers' => array(
        'type' => 'int',
        'size' => 'tiny',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 1,
      ),
    ),
  );

  /**
   * Quiz specific options concerning  availability and access to scores.
   */

  // Create the quiz node results table
  $schema['quiz_node_results'] = array(
    'fields' => array(
      'result_id' => array(
        'type' => 'serial',
        'size' => 'normal',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'nid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'vid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'uid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'time_start' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'default' => 0,
      ),
      'time_end' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'default' => 0,
      ),
      'released' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'default' => 0,
      ),
      'score' => array(
        'type' => 'int',
        'size' => 'tiny',
        'not null' => TRUE,
        'default' => 0,
      ),
    ),
    'primary key' => array(
      'result_id',
    ),
  );

  /**
   * Information about a particular question in a result
   */
  $schema['quiz_node_results_answers'] = array(
    'fields' => array(
      'result_id' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'question_nid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'question_vid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'is_correct' => array(
        'type' => 'int',
        'size' => 'tiny',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'points_awarded' => array(
        'type' => 'int',
        'size' => 'tiny',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'answer_timestamp' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
    ),
    'primary key' => array(
      'result_id',
      'question_nid',
      'question_vid',
    ),
  );

  /**
   * Allows custom feedback based on the results of a user completing a quiz.
   */

  // Create the quiz node result options table
  $schema['quiz_node_result_options'] = array(
    'fields' => array(
      'option_id' => array(
        'type' => 'serial',
        'size' => 'normal',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'nid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'vid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'option_name' => array(
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
      ),
      'option_summary' => array(
        'type' => 'text',
        'length' => 65535,
      ),
      'option_start' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'default' => 0,
      ),
      'option_end' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'default' => 0,
      ),
    ),
    'primary key' => array(
      'option_id',
    ),
  );
  return $schema;
}