MDL-29481: added css border around selected rubric level
[moodle.git] / grade / grading / form / rubric / renderer.php
CommitLineData
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1<?php
2
3// This file is part of Moodle - http://moodle.org/
4//
5// Moodle is free software: you can redistribute it and/or modify
6// it under the terms of the GNU General Public License as published by
7// the Free Software Foundation, either version 3 of the License, or
8// (at your option) any later version.
9//
10// Moodle is distributed in the hope that it will be useful,
11// but WITHOUT ANY WARRANTY; without even the implied warranty of
12// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13// GNU General Public License for more details.
14//
15// You should have received a copy of the GNU General Public License
16// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
17
18/**
19 * @package gradingform
20 * @subpackage rubric
21 * @copyright 2011 Marina Glancy
22 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
23 */
24
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25defined('MOODLE_INTERNAL') || die();
26
27/**
28 * Grading method plugin renderer
29 */
ab156741 30class gradingform_rubric_renderer {
c586d2bf 31
ab156741 32 /**
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33 * This function returns html code for displaying criterion. Depending on $mode it may be the
34 * code to edit rubric, to preview the rubric, to evaluate somebody or to review the evaluation.
35 *
36 * This function may be called from display_rubric() to display the whole rubric, or it can be
37 * called by itself to return a template used by JavaScript to add new empty criteria to the
38 * rubric being designed.
39 * In this case it will use macros like {NAME}, {LEVELS}, {CRITERION-id}, etc.
40 *
41 * When overriding this function it is very important to remember that all elements of html
42 * form (in edit or evaluate mode) must have the name $elementname.
ab156741 43 *
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44 * Also JavaScript relies on the class names of elements and when developer changes them
45 * script might stop working.
46 *
47 * @param int $mode rubric display mode @see gradingform_rubric_controller
48 * @param string $elementname the name of the form element (in editor mode) or the prefix for div ids (in view mode)
49 * @param array|null $criterion criterion data
50 * @param string $levels_str evaluated templates for this criterion levels
51 * @param array|null $value (only in view mode) teacher's feedback on this criterion
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52 * @return string
53 */
39c6f4b6 54 public function criterion_template($mode, $options, $elementname = '{NAME}', $criterion = null, $levels_str = '{LEVELS}', $value = null) {
5060997b 55 // TODO description format, remark format
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56 if ($criterion === null || !is_array($criterion) || !array_key_exists('id', $criterion)) {
57 $criterion = array('id' => '{CRITERION-id}', 'description' => '{CRITERION-description}', 'sortorder' => '{CRITERION-sortorder}', 'class' => '{CRITERION-class}');
58 } else {
59 foreach (array('sortorder', 'description', 'class') as $key) {
60 // set missing array elements to empty strings to avoid warnings
61 if (!array_key_exists($key, $criterion)) {
62 $criterion[$key] = '';
63 }
64 }
65 }
39c6f4b6 66 $criterion_template = html_writer::start_tag('tr', array('class' => 'criterion'. $criterion['class'], 'id' => '{NAME}-criteria-{CRITERION-id}'));
ab156741 67 if ($mode == gradingform_rubric_controller::DISPLAY_EDIT_FULL) {
8df55bbe 68 $criterion_template .= html_writer::start_tag('td', array('class' => 'controls'));
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69 foreach (array('moveup', 'delete', 'movedown') as $key) {
70 $value = get_string('criterion'.$key, 'gradingform_rubric');
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71 $button = html_writer::empty_tag('input', array('type' => 'submit', 'name' => '{NAME}[criteria][{CRITERION-id}]['.$key.']',
72 'id' => '{NAME}-criteria-{CRITERION-id}-'.$key, 'value' => $value, 'title' => $value));
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73 $criterion_template .= html_writer::tag('div', $button, array('class' => $key));
74 }
8df55bbe 75 $criterion_template .= html_writer::end_tag('td'); // .controls
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76 $criterion_template .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => '{NAME}[criteria][{CRITERION-id}][sortorder]', 'value' => $criterion['sortorder']));
77 $description = html_writer::tag('textarea', htmlspecialchars($criterion['description']), array('name' => '{NAME}[criteria][{CRITERION-id}][description]', 'cols' => '10', 'rows' => '5'));
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78 } else {
79 if ($mode == gradingform_rubric_controller::DISPLAY_EDIT_FROZEN) {
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80 $criterion_template .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => '{NAME}[criteria][{CRITERION-id}][sortorder]', 'value' => $criterion['sortorder']));
81 $criterion_template .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => '{NAME}[criteria][{CRITERION-id}][description]', 'value' => $criterion['description']));
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82 }
83 $description = $criterion['description'];
84 }
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85 $criterion_template .= html_writer::tag('td', $description, array('class' => 'description', 'id' => '{NAME}-criteria-{CRITERION-id}-description'));
86 $levels_str_table = html_writer::tag('table', html_writer::tag('tr', $levels_str, array('id' => '{NAME}-criteria-{CRITERION-id}-levels')));
87 $criterion_template .= html_writer::tag('td', $levels_str_table, array('class' => 'levels'));
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88 if ($mode == gradingform_rubric_controller::DISPLAY_EDIT_FULL) {
89 $value = get_string('criterionaddlevel', 'gradingform_rubric');
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90 $button = html_writer::empty_tag('input', array('type' => 'submit', 'name' => '{NAME}[criteria][{CRITERION-id}][levels][addlevel]',
91 'id' => '{NAME}-criteria-{CRITERION-id}-levels-addlevel', 'value' => $value, 'title' => $value));
8df55bbe 92 $criterion_template .= html_writer::tag('td', $button, array('class' => 'addlevel'));
ab156741 93 }
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94 $displayremark = ($options['enableremarks'] && ($mode != gradingform_rubric_controller::DISPLAY_VIEW || $options['showremarksstudent']));
95 if ($displayremark) {
5060997b 96 $currentremark = '';
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97 if (isset($value['remark'])) {
98 $currentremark = $value['remark'];
99 }
100 if ($mode == gradingform_rubric_controller::DISPLAY_EVAL) {
101 $input = html_writer::tag('textarea', htmlspecialchars($currentremark), array('name' => '{NAME}[criteria][{CRITERION-id}][remark]', 'cols' => '10', 'rows' => '5'));
102 $criterion_template .= html_writer::tag('td', $input, array('class' => 'remark'));
103 } else if ($mode == gradingform_rubric_controller::DISPLAY_EVAL_FROZEN) {
104 $criterion_template .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => '{NAME}[criteria][{CRITERION-id}][remark]', 'value' => $currentremark));
105 }else if ($mode == gradingform_rubric_controller::DISPLAY_REVIEW || $mode == gradingform_rubric_controller::DISPLAY_VIEW) {
106 $criterion_template .= html_writer::tag('td', $currentremark, array('class' => 'remark')); // TODO maybe some prefix here like 'Teacher remark:'
107 }
5060997b 108 }
8df55bbe 109 $criterion_template .= html_writer::end_tag('tr'); // .criterion
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110
111 $criterion_template = str_replace('{NAME}', $elementname, $criterion_template);
112 $criterion_template = str_replace('{CRITERION-id}', $criterion['id'], $criterion_template);
113 return $criterion_template;
114 }
115
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116 /**
117 * This function returns html code for displaying one level of one criterion. Depending on $mode
118 * it may be the code to edit rubric, to preview the rubric, to evaluate somebody or to review the evaluation.
119 *
120 * This function may be called from display_rubric() to display the whole rubric, or it can be
121 * called by itself to return a template used by JavaScript to add new empty level to the
122 * criterion during the design of rubric.
123 * In this case it will use macros like {NAME}, {CRITERION-id}, {LEVEL-id}, etc.
124 *
125 * When overriding this function it is very important to remember that all elements of html
126 * form (in edit or evaluate mode) must have the name $elementname.
127 *
128 * Also JavaScript relies on the class names of elements and when developer changes them
129 * script might stop working.
130 *
131 * @param int $mode rubric display mode @see gradingform_rubric_controller
132 * @param string $elementname the name of the form element (in editor mode) or the prefix for div ids (in view mode)
133 * @param string|int $criterionid either id of the nesting criterion or a macro for template
134 * @param array|null $level level data, also in view mode it might also have property $level['checked'] whether this level is checked
135 * @return string
136 */
39c6f4b6 137 public function level_template($mode, $options, $elementname = '{NAME}', $criterionid = '{CRITERION-id}', $level = null) {
ab156741 138 // TODO definition format
5060997b 139 if (!isset($level['id'])) {
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140 $level = array('id' => '{LEVEL-id}', 'definition' => '{LEVEL-definition}', 'score' => '{LEVEL-score}', 'class' => '{LEVEL-class}', 'checked' => false);
141 } else {
142 foreach (array('score', 'definition', 'class', 'checked') as $key) {
143 // set missing array elements to empty strings to avoid warnings
144 if (!array_key_exists($key, $level)) {
145 $level[$key] = '';
146 }
147 }
148 }
149
150 // Template for one level within one criterion
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151 $tdattributes = array('id' => '{NAME}-criteria-{CRITERION-id}-levels-{LEVEL-id}', 'class' => 'level'. $level['class']);
152 if (isset($level['tdwidth'])) {
153 $tdattributes['width'] = round($level['tdwidth']).'%';
154 }
155 $level_template = html_writer::start_tag('td', $tdattributes);
156 $level_template .= html_writer::start_tag('div', array('class' => 'level-wrapper'));
ab156741 157 if ($mode == gradingform_rubric_controller::DISPLAY_EDIT_FULL) {
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158 $definition = html_writer::tag('textarea', htmlspecialchars($level['definition']), array('name' => '{NAME}[criteria][{CRITERION-id}][levels][{LEVEL-id}][definition]', 'cols' => '10', 'rows' => '4'));
159 $score = html_writer::empty_tag('input', array('type' => 'text', 'name' => '{NAME}[criteria][{CRITERION-id}][levels][{LEVEL-id}][score]', 'size' => '4', 'value' => $level['score']));
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160 } else {
161 if ($mode == gradingform_rubric_controller::DISPLAY_EDIT_FROZEN) {
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162 $level_template .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => '{NAME}[criteria][{CRITERION-id}][levels][{LEVEL-id}][definition]', 'value' => $level['definition']));
163 $level_template .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => '{NAME}[criteria][{CRITERION-id}][levels][{LEVEL-id}][score]', 'value' => $level['score']));
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164 }
165 $definition = $level['definition'];
166 $score = $level['score'];
167 }
168 if ($mode == gradingform_rubric_controller::DISPLAY_EVAL) {
5060997b 169 $input = html_writer::empty_tag('input', array('type' => 'radio', 'name' => '{NAME}[criteria][{CRITERION-id}][levelid]', 'value' => $level['id']) +
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170 ($level['checked'] ? array('checked' => 'checked') : array()));
171 $level_template .= html_writer::tag('div', $input, array('class' => 'radio'));
172 }
173 if ($mode == gradingform_rubric_controller::DISPLAY_EVAL_FROZEN && $level['checked']) {
5060997b 174 $level_template .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => '{NAME}[criteria][{CRITERION-id}][levelid]', 'value' => $level['id']));
ab156741 175 }
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176 $score = html_writer::tag('span', $score, array('id' => '{NAME}-criteria-{CRITERION-id}-levels-{LEVEL-id}-score'));
177 $level_template .= html_writer::tag('div', $definition, array('class' => 'definition', 'id' => '{NAME}-criteria-{CRITERION-id}-levels-{LEVEL-id}-definition'));
178 $displayscore = true;
179 if (!$options['showscoreteacher'] && in_array($mode, array(gradingform_rubric_controller::DISPLAY_EVAL, gradingform_rubric_controller::DISPLAY_EVAL_FROZEN, gradingform_rubric_controller::DISPLAY_REVIEW))) {
180 $displayscore = false;
181 }
182 if (!$options['showscorestudent'] && $mode == gradingform_rubric_controller::DISPLAY_VIEW) {
183 $displayscore = false;
184 }
185 if ($displayscore) {
186 $level_template .= html_writer::tag('div', $score. get_string('scorepostfix', 'gradingform_rubric'), array('class' => 'score'));
187 }
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188 if ($mode == gradingform_rubric_controller::DISPLAY_EDIT_FULL) {
189 $value = get_string('leveldelete', 'gradingform_rubric');
39c6f4b6 190 $button = html_writer::empty_tag('input', array('type' => 'submit', 'name' => '{NAME}[criteria][{CRITERION-id}][levels][{LEVEL-id}][delete]', 'id' => '{NAME}-criteria-{CRITERION-id}-levels-{LEVEL-id}-delete', 'value' => $value, 'title' => $value));
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191 $level_template .= html_writer::tag('div', $button, array('class' => 'delete'));
192 }
39c6f4b6 193 $level_template .= html_writer::end_tag('div'); // .level-wrapper
8df55bbe 194 $level_template .= html_writer::end_tag('td'); // .level
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195
196 $level_template = str_replace('{NAME}', $elementname, $level_template);
197 $level_template = str_replace('{CRITERION-id}', $criterionid, $level_template);
198 $level_template = str_replace('{LEVEL-id}', $level['id'], $level_template);
199 return $level_template;
200 }
201
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202 /**
203 * This function returns html code for displaying rubric template (content before and after
204 * criteria list). Depending on $mode it may be the code to edit rubric, to preview the rubric,
205 * to evaluate somebody or to review the evaluation.
206 *
207 * This function is called from display_rubric() to display the whole rubric.
208 *
209 * When overriding this function it is very important to remember that all elements of html
210 * form (in edit or evaluate mode) must have the name $elementname.
211 *
212 * Also JavaScript relies on the class names of elements and when developer changes them
213 * script might stop working.
214 *
215 * @param int $mode rubric display mode @see gradingform_rubric_controller
216 * @param string $elementname the name of the form element (in editor mode) or the prefix for div ids (in view mode)
217 * @param string $criteria_str evaluated templates for this rubric's criteria
218 * @return string
219 */
39c6f4b6 220 protected function rubric_template($mode, $options, $elementname, $criteria_str) {
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221 $classsuffix = ''; // CSS suffix for class of the main div. Depends on the mode
222 switch ($mode) {
223 case gradingform_rubric_controller::DISPLAY_EDIT_FULL:
224 $classsuffix = ' editor editable'; break;
225 case gradingform_rubric_controller::DISPLAY_EDIT_FROZEN:
226 $classsuffix = ' editor frozen'; break;
227 case gradingform_rubric_controller::DISPLAY_PREVIEW:
228 $classsuffix = ' editor preview'; break;
229 case gradingform_rubric_controller::DISPLAY_EVAL:
230 $classsuffix = ' evaluate editable'; break;
231 case gradingform_rubric_controller::DISPLAY_EVAL_FROZEN:
232 $classsuffix = ' evaluate frozen'; break;
233 case gradingform_rubric_controller::DISPLAY_REVIEW:
234 $classsuffix = ' review'; break;
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235 case gradingform_rubric_controller::DISPLAY_VIEW:
236 $classsuffix = ' view'; break;
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237 }
238
fc5adc3b 239 $rubric_template = html_writer::start_tag('div', array('id' => 'rubric-{NAME}', 'class' => 'clearfix gradingform_rubric'.$classsuffix));
8df55bbe 240 $rubric_template .= html_writer::tag('table', $criteria_str, array('class' => 'criteria', 'id' => '{NAME}-criteria'));
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241 if ($mode == gradingform_rubric_controller::DISPLAY_EDIT_FULL) {
242 $value = get_string('addcriterion', 'gradingform_rubric');
39c6f4b6 243 $input = html_writer::empty_tag('input', array('type' => 'submit', 'name' => '{NAME}[criteria][addcriterion]', 'id' => '{NAME}-criteria-addcriterion', 'value' => $value, 'title' => $value));
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244 $rubric_template .= html_writer::tag('div', $input, array('class' => 'addcriterion'));
245 }
39c6f4b6 246 $rubric_template .= $this->rubric_edit_options($mode, $options);
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247 $rubric_template .= html_writer::end_tag('div');
248
249 return str_replace('{NAME}', $elementname, $rubric_template);
250 }
251
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252 protected function rubric_edit_options($mode, $options) {
253 if ($mode != gradingform_rubric_controller::DISPLAY_EDIT_FULL
254 && $mode != gradingform_rubric_controller::DISPLAY_EDIT_FROZEN
255 && $mode != gradingform_rubric_controller::DISPLAY_PREVIEW) {
256 // Options are displayed only in edit mode
257 return;
258 }
259 $html = html_writer::start_tag('div', array('class' => 'options'));
260 $html .= html_writer::tag('div', get_string('rubricoptions', 'gradingform_rubric'), array('class' => 'optionsheading'));
261 $attrs = array('type' => 'hidden', 'name' => '{NAME}[options][optionsset]', 'value' => 1);
262 foreach ($options as $option => $value) {
263 $html .= html_writer::start_tag('div', array('class' => 'option '.$option));
264 $attrs = array('name' => '{NAME}[options]['.$option.']', 'id' => '{NAME}-options-'.$option);
265 switch ($option) {
266 case 'sortlevelsasc':
267 // Display option as dropdown
268 $html .= html_writer::tag('span', get_string($option, 'gradingform_rubric'), array('class' => 'label'));
269 $value = (int)(!!$value); // make sure $value is either 0 or 1
270 if ($mode == gradingform_rubric_controller::DISPLAY_EDIT_FULL) {
271 $selectoptions = array(0 => get_string($option.'0', 'gradingform_rubric'), 1 => get_string($option.'1', 'gradingform_rubric'));
272 $value_str = html_writer::select($selectoptions, $attrs['name'], $value, false, array('id' => $attrs['id']));
273 $html .= html_writer::tag('span', $value_str, array('class' => 'value'));
274 // TODO add here button 'Sort levels'
275 } else {
276 $html .= html_writer::tag('span', get_string($option.$value, 'gradingform_rubric'), array('class' => 'value'));
277 if ($mode == gradingform_rubric_controller::DISPLAY_EDIT_FROZEN) {
278 $html .= html_writer::empty_tag('input', $attrs + array('type' => 'hidden', 'value' => $value));
279 }
280 }
281 break;
282 default:
283 // Display option as checkbox
284 $attrs['type'] = 'checkbox';
285 $attrs['value'] = 1;
286 if ($value) {
287 $attrs['checked'] = 'checked';
288 }
289 if ($mode == gradingform_rubric_controller::DISPLAY_EDIT_FROZEN) {
290 $attrs['disabled'] = 'disabled';
291 }
292 if ($mode == gradingform_rubric_controller::DISPLAY_PREVIEW) {
293 $attrs['disabled'] = 'disabled';
294 unset($attrs['name']);
295 }
296 $html .= html_writer::empty_tag('input', $attrs);
297 $html .= html_writer::tag('label', get_string($option, 'gradingform_rubric'), array('for' => $attrs['id']));
298 break;
299 }
300 $html .= html_writer::end_tag('div'); // .option
301 }
302 $html .= html_writer::end_tag('div'); // .options
303 return $html;
304 }
305
ab156741 306 /**
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307 * This function returns html code for displaying rubric. Depending on $mode it may be the code
308 * to edit rubric, to preview the rubric, to evaluate somebody or to review the evaluation.
309 *
310 * It is very unlikely that this function needs to be overriden by theme. It does not produce
311 * any html code, it just prepares data about rubric design and evaluation, adds the CSS
312 * class to elements and calls the functions level_template, criterion_template and
313 * rubric_template
ab156741 314 *
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315 * @param array $criteria data about the rubric design
316 * @param int $mode rubric display mode @see gradingform_rubric_controller
317 * @param string $elementname the name of the form element (in editor mode) or the prefix for div ids (in view mode)
318 * @param array $values evaluation result
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319 * @return string
320 */
39c6f4b6 321 public function display_rubric($criteria, $options, $mode, $elementname = null, $values = null) {
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322 $criteria_str = '';
323 $cnt = 0;
324 foreach ($criteria as $id => $criterion) {
325 $criterion['class'] = $this->get_css_class_suffix($cnt++, sizeof($criteria) -1);
39c6f4b6 326 $criterion['id'] = $id;
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327 $levels_str = '';
328 $levelcnt = 0;
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329 if (isset($values['criteria'][$id])) {
330 $criterionvalue = $values['criteria'][$id];
331 } else {
332 $criterionvalue = null;
333 }
ab156741 334 foreach ($criterion['levels'] as $levelid => $level) {
39c6f4b6 335 $level['id'] = $levelid;
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336 $level['score'] = (float)$level['score']; // otherwise the display will look like 1.00000
337 $level['class'] = $this->get_css_class_suffix($levelcnt++, sizeof($criterion['levels']) -1);
5060997b 338 $level['checked'] = (isset($criterionvalue['levelid']) && ((int)$criterionvalue['levelid'] === $levelid));
39c6f4b6 339 if ($level['checked'] && ($mode == gradingform_rubric_controller::DISPLAY_EVAL_FROZEN || $mode == gradingform_rubric_controller::DISPLAY_REVIEW || $mode == gradingform_rubric_controller::DISPLAY_VIEW)) {
ab156741 340 $level['class'] .= ' checked';
fc5adc3b 341 //in mode DISPLAY_EVAL the class 'checked' will be added by JS if it is enabled. If JS is not enabled, the 'checked' class will only confuse
ab156741 342 }
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343 $level['tdwidth'] = 100/count($criterion['levels']);
344 $levels_str .= $this->level_template($mode, $options, $elementname, $id, $level);
ab156741 345 }
39c6f4b6 346 $criteria_str .= $this->criterion_template($mode, $options, $elementname, $criterion, $levels_str, $criterionvalue);
ab156741 347 }
39c6f4b6 348 return $this->rubric_template($mode, $options, $elementname, $criteria_str);
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349 }
350
351 /**
fc5adc3b 352 * Help function to return CSS class names for element (first/last/even/odd) with leading space
ab156741 353 *
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354 * @param int $cnt
355 * @param int $maxcnt
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356 * @return string
357 */
fc5adc3b 358 protected function get_css_class_suffix($cnt, $maxcnt) {
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359 $class = '';
360 if ($cnt == 0) {
361 $class .= ' first';
362 }
363 if ($cnt == $maxcnt) {
364 $class .= ' last';
365 }
366 if ($cnt%2) {
367 $class .= ' odd';
368 } else {
369 $class .= ' even';
370 }
371 return $class;
372 }
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373
374 /**
375 * Displays for the student the list of instances or default content if no instances found
376 *
377 * @param array $instances array of objects of type gradingform_rubric_instance
378 * @param string $defaultcontent default string that would be displayed without advanced grading
379 * @return string
380 */
381 public function display_instances($instances, $defaultcontent) {
382 if (sizeof($instances)) {
383 $rv = html_writer::start_tag('div', array('class' => 'advancedgrade'));
384 $idx = 0;
385 foreach ($instances as $instance) {
386 $rv .= $this->display_instance($instance, $idx++);
387 }
388 $rv .= html_writer::end_tag('div');
389 }
390 return $rv. $defaultcontent;
391 }
392
393 /**
394 * Displays one grading instance
395 *
396 * @param gradingform_rubric_instance $instance
397 * @param int idx unique number of instance on page
398 */
399 public function display_instance(gradingform_rubric_instance $instance, $idx) {
400 $criteria = $instance->get_controller()->get_definition()->rubric_criteria;
39c6f4b6 401 $options = $instance->get_controller()->get_options();
36937f02 402 $values = $instance->get_rubric_filling();
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403 // TODO mode should be DISPLAY_REVIEW if this user is a teacher
404 return $this->display_rubric($criteria, $options, gradingform_rubric_controller::DISPLAY_VIEW, 'rubric'.$idx, $values);
36937f02 405 }
c586d2bf 406}