report.php

很棒的在线教学系统

<?php  // $Id: report.php,v 1.8.8.2 2008/03/06 07:34:04 gbateson Exp $
/// Overview report just displays a big table of all the attempts
class hotpot_report extends hotpot_default_report {
	function display(&$hotpot, &$cm, &$course, &$users, &$attempts, &$questions, &$options) {
		global $CFG;
		// create the tables
		$tables = array();
		$this->create_clickreport_table($hotpot, $cm, $course, $users, $attempts, $questions, $options, $tables);
		// print the tables
		$this->print_report($course, $hotpot, $tables, $options);
		return true;
	}
	function create_clickreport_table(&$hotpot, &$cm, &$course, &$users, &$attempts, &$questions, &$options, &$tables) {
		global $CFG;
		$is_html = ($options['reportformat']=='htm');
		// time and date format strings		// date format strings
		$strftimetime = '%H:%M:%S';
		$strftimedate = get_string('strftimedate');
		// get the current time and max execution time
		$start_report_time = microtime();
		$max_execution_time = ini_get('max_execution_time');
		$correct = get_string('reportcorrectsymbol', 'hotpot');
		$wrong = get_string('reportwrongsymbol', 'hotpot');
		$nottried = get_string('reportnottriedsymbol', 'hotpot');
		// shortcuts for font tags
		$blank = $is_html ? '&nbsp;' : "";
		// store question count
		$questioncount = count($questions);
		// array to map columns onto question ids ($col => $id)
		$questionids = array_keys($questions);
		// store exercise type
		$exercisetype = $this->get_exercisetype($questions, $questionids, $blank);
		// initialize details ('events' must go last)
		$details = array('checks', 'status', 'answers', 'changes', 'hints', 'clues', 'events');
		// initialize $table
		unset($table);
		$table->border = 1;
		$table->width = '100%';
		// initialize legend, if necessary
		if (!empty($options['reportshowlegend'])) {
			$table->legend = array();
		}
		// start $table headings
		$this->set_head($options, $table, 'exercise');
		$this->set_head($options, $table, 'user');
		$this->set_head($options, $table, 'attempt');
		$this->set_head($options, $table, 'click');
		// store clicktype column number
		$clicktype_col = count($table->head)-1;
		// finish $table headings
		$this->set_head($options, $table, 'details', $exercisetype, $details, $questioncount);
		$this->set_head($options, $table, 'totals', $exercisetype);
		// set align and wrap
		$this->set_align_and_wrap($table);
		// is link to review allowed?
		$allow_review = ($is_html && (has_capability('mod/hotpot:viewreport',get_context_instance(CONTEXT_COURSE, $course->id)) || $hotpot->review));
		// initialize array of data values
		$this->data = array();
		// set exercise data values
		$this->set_data_exercise($cm, $course, $hotpot, $questions, $questionids, $questioncount, $blank);
		// add details of users' responses
		foreach ($users as $user) {
			$this->set_data_user($options, $course, $user);
			unset($clickreportid);
			foreach ($user->attempts as $attempt) {
				// initialize totals for
				$click = array(
					'qnumber' => array(),
					'correct' => array(),
					'wrong' => array(),
					'answers' => array(),
					'hints' => array(),
					'clues' => array(),
					'changes' => array(),
					'checks' => array(),
					'events' => array(),
					'score' => array(),
					'weighting' => array()
				);
				$clicktypes = array();
				// is the start of a new attempt?
				// (clicks in the same attempt have the same clickreportid)
				if (!isset($clickreportid) || $clickreportid != $attempt->clickreportid) {
					$clickcount = 1;
					$clickreportid = $attempt->clickreportid;
					// initialize totals for all clicks in this attempt
					$clicks = $click; // $click has just been initialized
					$this->set_data_attempt($attempt, $strftimedate, $strftimetime, $blank);
				}
				$cells = array();
				$this->set_data($cells, 'exercise');
				$this->set_data($cells, 'user');
				$this->set_data($cells, 'attempt');
				// get responses to questions in this attempt
				foreach ($attempt->responses as $response) {
					// set $q(uestion number)
					$q = array_search($response->question, $questionids);
					$click['qnumber'][$q] = true;
					// was this question answered correctly?
					if ($answer = hotpot_strings($response->correct)) {
						// mark the question as correctly answered
						if (empty($clicks['correct'][$q])) {
							$click['correct'][$q] = true;
							$clicks['correct'][$q] = true;
						}
						// unset 'wrong' flags, if necessary
						if (isset($click['wrong'][$q])) {
							unset($click['wrong'][$q]);
						}
						if (isset($clicks['wrong'][$q])) {
							unset($clicks['wrong'][$q]);
						}
					// otherwise, was the question answered wrongly?
					} else if ($answer = hotpot_strings($response->wrong)) {
						// mark the question as wrongly answered
						$click['wrong'][$q] = true;
						$clicks['wrong'][$q] = true;
					} else { // not correct or wrong (curious?!)
						unset($answer);
					}
					if (!empty($click['correct'][$q]) || !empty($click['wrong'][$q])) {
						$click['score'][$q] = $response->score;
						$clicks['score'][$q] = $response->score;
						$weighting = isset($response->weighting) ? $response->weighting : 100;
						$click['weighting'][$q] = $weighting;
						$clicks['weighting'][$q] =$weighting;
					}
					foreach($details as $detail) {
						switch ($detail) {
							case 'answers':
								if (isset($answer) && is_string($answer) && !empty($answer)) {
									$click[$detail][$q] = $answer;
								}
								break;
							case 'hints':
							case 'clues':
							case 'checks':
								if (isset($response->$detail) && is_numeric($response->$detail) && $response->$detail>0) {
									if (!isset($click[$detail][$q]) || $click[$detail][$q] < $response->$detail) {
										$click[$detail][$q] = $response->$detail;
									}
								}
								break;
						}
					} // end foreach $detail
				} // end foreach $response
				$click['types'] = array();
				$this->data['details'] = array();
				foreach($details as $detail) {
					for ($q=0; $q<$questioncount; $q++) {
						switch ($detail) {
							case 'status':
								if (isset($clicks['correct'][$q])) {
									$this->data['details'][] = $correct;
								} else if (isset($clicks['wrong'][$q])) {
									$this->data['details'][] = $wrong;
								} else if (isset($click['qnumber'][$q])) {
									$this->data['details'][] = $nottried;
								} else { // this question did not appear in this attempt
									$this->data['details'][] = $blank;
								}
								break;
							case 'answers':
							case 'hints':
							case 'clues':
							case 'checks':
								if (!isset($clicks[$detail][$q])) {
									if (!isset($click[$detail][$q])) {
										$this->data['details'][] = $blank;
									} else {
										$clicks[$detail][$q] = $click[$detail][$q];
										if ($detail=='answers') {
											$this->set_legend($table, $q, $click[$detail][$q], $questions[$questionids[$q]]);
										}
										$this->data['details'][] = $click[$detail][$q];
										$this->update_event_count($click, $detail, $q);
									}
								} else {
									if (!isset($click[$detail][$q])) {
										$this->data['details'][] = $blank;
									} else {
										$difference = '';
										if ($detail=='answers') {
											if ($click[$detail][$q] != $clicks[$detail][$q]) {
												$pattern = '/^'.preg_quote($clicks[$detail][$q], '/').',/';
												$difference = preg_replace($pattern, '', $click[$detail][$q], 1);
											}
										} else { // hints, clues, checks
											if ($click[$detail][$q] > $clicks[$detail][$q]) {
												$difference = $click[$detail][$q] - $clicks[$detail][$q];
											}
										}
										if ($difference) {
											$clicks[$detail][$q] = $click[$detail][$q];
											$click[$detail][$q] = $difference;
											if ($detail=='answers') {
												$this->set_legend($table, $q, $difference, $questions[$questionids[$q]]);
											}
											$this->data['details'][] = $difference;
											$this->update_event_count($click, $detail, $q);
										} else {
											unset($click[$detail][$q]);
											$this->data['details'][] = $blank;
										}
									}
								}
								break;
							case 'changes':
							case 'events':
								if (empty($click[$detail][$q])) {
									$this->data['details'][] = $blank;
								} else {
									$this->data['details'][] = $click[$detail][$q];
								}
								break;
							default:
								// do nothing
								break;
						} // end switch
					} // for $q
				} // foreach $detail
				// set data cell values for
				$this->set_data_click(
					$allow_review ? '<a href="review.php?hp='.$hotpot->id.'&amp;attempt='.$attempt->id.'">'.$clickcount.'</a>' : $clickcount,
					trim(userdate($attempt->timefinish, $strftimetime)),
					$exercisetype,
					$click
				);
				$this->set_data($cells, 'click');
				$this->set_data($cells, 'details');
				$this->set_data_totals($click, $clicks, $questioncount, $blank, $attempt);
				$this->set_data($cells, 'totals');
				$table->data[] = $cells;
				$clickcount++;
			} // end foreach $attempt
			 // insert 'tabledivider' between users
			$table->data[] = 'hr';
		} // end foreach $user
		// remove final 'hr' from data rows
		array_pop($table->data);
		if ($is_html && $CFG->hotpot_showtimes) {
			$count = count($users);
			$duration = sprintf("%0.3f", microtime_diff($start_report_time, microtime()));
			print "$count users processed in $duration seconds (".sprintf("%0.3f", $duration/$count).' secs/user)<hr size="1" noshade="noshade" />'."\n";
		}
		$tables[] = &$table;
		$this->create_legend_table($tables, $table);
	} // end function
	function get_exercisetype(&$questions, &$questionids, &$blank) {
		if (empty($questions)) {
			$type = $blank;
		} else {
			switch ($questions[$questionids[0]]->type) {
				case HOTPOT_JCB:
					$type = "JCB";
					break;
				case HOTPOT_JCLOZE :
					$type = "JCloze";
					break;
				case HOTPOT_JCROSS :
					$type = "JCross";
					break;
				case HOTPOT_JMATCH :
					$type = "JMatch";
					break;
				case HOTPOT_JMIX :
					$type = "JMix";
					break;
				case HOTPOT_JQUIZ :
					$type = "JQuiz";
					break;