multichoice.install in Quiz 7.5

Multichoice questions install file.

File

question_types/multichoice/multichoice.install

<?php

/**
 * @file
 * Multichoice questions install file.
 */

/**
 * Implements hook_install().
 */
function multichoice_install() {

  // Add body field to multichoice node.
  quiz_question_add_body_field('multichoice');
  variable_set('node_options_multichoice', array(
    'status',
  ));
}

/**
 * Implements hook_schema().
 */
function multichoice_schema() {

  // Stores the users answers to a question.
  $schema['quiz_multichoice_user_answers'] = array(
    'fields' => array(
      'id' => array(
        'type' => 'serial',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'result_answer_id' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => FALSE,
      ),
      'choice_order' => array(
        'type' => 'text',
      ),
    ),
    'primary key' => array(
      'id',
    ),
    'unique keys' => array(
      'result_answer_id' => array(
        'result_answer_id',
      ),
    ),
  );
  $schema['quiz_multichoice_user_answer_multi'] = array(
    'fields' => array(
      'user_answer_id' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'answer_id' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
    ),
    'primary key' => array(
      'user_answer_id',
      'answer_id',
    ),
    'indexes' => array(
      'answer_id' => array(
        'user_answer_id',
      ),
    ),
  );
  $schema['quiz_multichoice_properties'] = array(
    'fields' => array(
      'nid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'vid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'choice_multi' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'choice_random' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'choice_boolean' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
    ),
    'primary key' => array(
      'nid',
      'vid',
    ),
  );

  /*
   * Holds each answer in the answer_collections.
   */
  $schema['quiz_multichoice_answers'] = array(
    'fields' => array(
      'id' => array(
        'type' => 'serial',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'answer' => array(
        'type' => 'text',
      ),
      'answer_format' => array(
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
      ),
      'feedback_if_chosen' => array(
        'type' => 'text',
      ),
      'feedback_if_chosen_format' => array(
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
      ),
      'feedback_if_not_chosen' => array(
        'type' => 'text',
      ),
      'feedback_if_not_chosen_format' => array(
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
      ),
      'score_if_chosen' => array(
        'type' => 'int',
        'unsigned' => FALSE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'score_if_not_chosen' => array(
        'type' => 'int',
        'unsigned' => FALSE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'question_nid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'question_vid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'weight' => array(
        'type' => 'int',
        'unsigned' => FALSE,
        'not null' => TRUE,
        'default' => 0,
      ),
    ),
    'primary key' => array(
      'id',
    ),
    'indexes' => array(
      'quiz_id' => array(
        'question_nid',
        'question_vid',
      ),
    ),
  );
  $schema['quiz_multichoice_user_settings'] = array(
    'fields' => array(
      'uid' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'choice_multi' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'choice_random' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'choice_boolean' => array(
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
    ),
    'primary key' => array(
      'uid',
    ),
  );
  return $schema;
}

/**
 * Implements hook_uninstall().
 */
function multichoice_uninstall() {
  $var = array(
    'multichoice_def_scoring',
    'multichoice_def_num_of_alts',
  );
  foreach ($var as $v) {
    variable_del($v);
  }
}

/**
 * Change answer_format to a varchar.
 */
function multichoice_update_7500() {
  $fields = array(
    'answer_format',
    'feedback_if_chosen_format',
    'feedback_if_not_chosen_format',
  );
  foreach ($fields as $field) {
    db_change_field('quiz_multichoice_answers', $field, $field, array(
      'type' => 'varchar',
      'length' => 255,
      'not null' => TRUE,
    ));
  }
}

/**
 * Add weights for multichoice alternatives.
 */
function multichoice_update_7501() {
  db_add_field('quiz_multichoice_answers', 'weight', array(
    'type' => 'int',
    'unsigned' => FALSE,
    'not null' => TRUE,
    'default' => 0,
  ));

  // Lol.
  db_query('UPDATE {quiz_multichoice_answers} SET weight = id');
  return t('Added weights for multichoice alternatives.');
}

/**
 * Normalize data storage.
 */
function multichoice_update_7502() {

  // Cleanup duplicates from 4.x.
  $sql = "delete from {quiz_multichoice_user_answers}\n    where id in (select id from (select id from {quiz_multichoice_user_answers} ua group by result_id, question_nid, question_vid having count(*) > 1) as q)";
  while (db_query($sql)
    ->rowCount()) {
  }
  db_add_field('quiz_multichoice_user_answers', 'result_answer_id', array(
    'type' => 'int',
    'unsigned' => TRUE,
    'not null' => FALSE,
  ));
  db_query("UPDATE {quiz_multichoice_user_answers} qtua\n    INNER JOIN {quiz_node_results_answers} qnra ON (qtua.question_nid = qnra.question_nid\n    AND qtua.question_vid = qnra.question_vid\n    AND qtua.result_id = qnra.result_id)\n    SET qtua.result_answer_id = qnra.result_answer_id");
  db_drop_field('quiz_multichoice_user_answers', 'result_id');
  db_drop_field('quiz_multichoice_user_answers', 'question_nid');
  db_drop_field('quiz_multichoice_user_answers', 'question_vid');
  db_add_unique_key('quiz_multichoice_user_answers', 'result_answer_id', array(
    'result_answer_id',
  ));
}

Functions

Name	Description
multichoice_install	Implements hook_install().
multichoice_schema	Implements hook_schema().
multichoice_uninstall	Implements hook_uninstall().
multichoice_update_7500	Change answer_format to a varchar.
multichoice_update_7501	Add weights for multichoice alternatives.
multichoice_update_7502	Normalize data storage.