function opigno_lrs_stats_course_content_course_contexts_statistics in Opigno TinCan API 7

Present course contexts statistics

Output example: array( 'http://opigno.com/node/15' => array( 'number_of_visit' => 123, 'number_of_users' => 15, 'percentage_of_users' => 34 ), 'http://opigno.com/node/18' => array( 'number_of_visit' => 33, 'number_of_users' => 15, 'percentage_of_users' => 12 )

)

Parameters

$statement_filter_function: Function to use as statement filter

Return value

array

1 call to opigno_lrs_stats_course_content_course_contexts_statistics()

opigno_lrs_stats_course_content_page in modules/opigno_tincan_api_stats/includes/course_content/course_content.pages.inc

Display courses statistic page

File

modules/opigno_tincan_api_stats/includes/course_content/model.inc, line 118

Courses model functions

Code

function opigno_lrs_stats_course_content_course_contexts_statistics($statement_filter_function = NULL) {
  $statements = function_exists($statement_filter_function) ? $statement_filter_function(opigno_lrs_stats_all_course_content_statements()) : opigno_lrs_stats_all_course_content_statements();
  $statements_aggregated_by_courses = opigno_lrs_stats_aggregate_statements_by_context($statements);
  $course_contexts_statistics = array_fill_keys(array_keys($statements_aggregated_by_courses), array(
    'number_of_visit' => 0,
    'number_of_users' => 0,
    'percentage_of_users' => 0,
  ));
  $statements_aggregated_by_courses_and_verb = array_map('opigno_lrs_stats_aggregate_statements_by_verb', $statements_aggregated_by_courses);
  $statements_aggregated_by_courses_and_user = array_map('opigno_lrs_stats_aggregate_statements_by_user', $statements_aggregated_by_courses);
  $total_number_of_users = count(opigno_lrs_stats_aggregate_statements_by_user(isset($statement_filter_function) ? $statement_filter_function(opigno_lrs_stats_all_statements()) : opigno_lrs_stats_all_statements()));
  foreach ($course_contexts_statistics as $course_context_id => &$course_context_statistics) {

    //Get course title in first statement

    //Try to use node title first, then if node has been removed, use title from statement
    $course_nid = opigno_lrs_stats_get_nid_by_object_id($course_context_id);
    $course = node_load($course_nid);
    $course_context_statistics['title'] = $course ? $course->title : $statements_aggregated_by_courses[$course_context_id][0]->context->contextActivities->grouping->definition->name->{'en-US'};

    //    $tincan_verb=tincanapi_get_verb('viewed'); // TODO: remove this
    $tincan_verb = OpignoTincanApiTinCanVerbs::$viewed;
    $viewed_verb_id = $tincan_verb['id'];
    $viewed_statements = @$statements_aggregated_by_courses_and_verb[$course_context_id][$viewed_verb_id];
    if (isset($viewed_statements)) {
      $course_context_statistics['number_of_visit'] = count($viewed_statements);
    }
    $course_context_statistics['number_of_users'] = count($statements_aggregated_by_courses_and_user[$course_context_id]);
    $course_context_statistics['percentage_of_users'] = $total_number_of_users > 0 ? round($course_context_statistics['number_of_users'] / $total_number_of_users * 100, 0) : 0;
  }
  return $course_contexts_statistics;
}