Fix authentication on wiki RSS
[platal.git] / modules / survey.php
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8fe81c50 1<?php
2/***************************************************************************
3 * Copyright (C) 2003-2007 Polytechnique.org *
4 * http://opensource.polytechnique.org/ *
5 * *
6 * This program is free software; you can redistribute it and/or modify *
7 * it under the terms of the GNU General Public License as published by *
8 * the Free Software Foundation; either version 2 of the License, or *
9 * (at your option) any later version. *
10 * *
11 * This program is distributed in the hope that it will be useful, *
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
14 * GNU General Public License for more details. *
15 * *
16 * You should have received a copy of the GNU General Public License *
17 * along with this program; if not, write to the Free Software *
18 * Foundation, Inc., *
19 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
20 ***************************************************************************/
21
22class SurveyModule extends PLModule
23{
24 // {{{ function handlers() : registers the different handlers
25 function handlers()
26 {
27 return array(
28 'survey' => $this->make_hook('index', AUTH_COOKIE),
29 'survey/edit' => $this->make_hook('edit', AUTH_COOKIE),
30 'survey/ajax' => $this->make_hook('ajax', AUTH_COOKIE),
31 'survey/admin' => $this->make_hook('admin', AUTH_MDP, 'admin'),
32 'survey/admin/edit' => $this->make_hook('adminEdit', AUTH_MDP, 'admin'),
33 'survey/admin/valid' => $this->make_hook('adminValidate', AUTH_MDP, 'admin'),
34 'survey/admin/del' => $this->make_hook('adminDelete', AUTH_MDP, 'admin'),
35 );
36 }
37 // }}}
38
39 // {{{ function handler_index() : lists all available surveys
40 function handler_index(&$page, $action = null)
41 {
42 require_once dirname(__FILE__).'/survey/survey.inc.php';
43 $page->changeTpl('survey/index.tpl');
44 $page->assign('survey_current', SurveyDB::retrieveList('c'));
45 $page->assign('survey_old', SurveyDB::retrieveList('o'));
46 }
47 // }}}
48
49 // {{{ function handler_admin() : index of admin mode
56c6950a 50 function handler_admin(&$page, $id = -1)
8fe81c50 51 {
52 require_once dirname(__FILE__).'/survey/survey.inc.php';
56c6950a 53 $this->clear_session();
54 if ($id == -1) {
55 $page->changeTpl('survey/admin.tpl');
56 $page->assign('survey_waiting', SurveyDB::retrieveList('w'));
57 $page->assign('survey_current', SurveyDB::retrieveList('c'));
58 $page->assign('survey_old', SurveyDB::retrieveList('o'));
59 } else {
60 $survey = SurveyDB::retrieveSurvey($id); // retrieves all survey object structure
61 if ($survey == null) {
62 $this->show_error($page, "Sondage ".$id." introuvable.", 'admin');
63 }
64 //$this->store_session($survey, $id);
65 $page->assign('survey_adminmode', true);
66 $page->assign('survey_id', $id);
67 $this->show_survey($page, $survey);
68 }
8fe81c50 69 }
70 // }}}
71
72 // {{{ function handler_adminEdit() : edits a survey in admin mode
56c6950a 73 function handler_adminEdit(&$page, $id = -1)
8fe81c50 74 {
56c6950a 75 if ($id == -1) {
76 return $this->show_error($page, "Un identifiant de sondage doit &#234;tre pr&#233;cis&#233;.", 'admin');
77 }
8fe81c50 78 require_once dirname(__FILE__).'/survey/survey.inc.php';
79 $survey = SurveyDB::retrieveSurvey($id); // retrieves the survey in database
56c6950a 80 $this->clear_session(); // cleans session (in case there would have been a problem before)
81 /*if ($survey->isValid()) {
8fe81c50 82 return $this->show_error($page, "Il est impossible de modifier un sondage d&#233;j&#224; valid&#233;", 'admin');
56c6950a 83 }*/
84 $this->store_session($survey, $id);
8fe81c50 85 $this->handler_edit($page, 'show'); // calls handler_edit, but in admin mode since 'survey_id' is in session
86 }
87 // }}}
88
89 // {{{ function handler_adminValidate() : validates a survey (admin mode)
90 function handler_adminValidate(&$page, $id = -1)
91 {
56c6950a 92 $id = Post::v('survey_id', $id);
8fe81c50 93 if (Post::has('survey_cancel')) { // if the admin cancels the validation, returns to the admin index
56c6950a 94 $this->clear_session();
95 return $this->handler_admin(&$page, $id);
8fe81c50 96 }
8fe81c50 97 if ($id == -1) {
98 return $this->show_error($page, "Un identifiant de sondage doit &#234;tre pr&#233;cis&#233;.", 'admin');
99 }
100 require_once dirname(__FILE__).'/survey/survey.inc.php';
101 $surveyInfo = SurveyDB::retrieveSurveyInfo($id); // retrieves information about the survey (does not retrieve and unserialize the object structure)
102 if ($surveyInfo == null) {
103 return $this->show_error($page, "Sondage ".$id." introuvable.", 'admin');
104 }
105 if (Post::has('survey_submit')) { // needs a confirmation before validation
106 if (SurveyDB::validateSurvey($id)) { // validates the survey (in the database)
107 $this->show_success($page, "Le sondage \"".$surveyInfo['title']."\" a bien &#233;t&#233; valid&#233;, les votes sont maintenant ouverts.", 'admin');
108 } else {
109 $this->show_error($page, '', 'admin');
110 }
111 } else { // asks for a confirmation
112 $this->show_confirm($page, "&#202;tes-vous certain de vouloir valider le sondage \"".$surveyInfo['title']."\" ? "
113 ."Les votes seront imm&#233;diatement ouverts.", 'admin/valid', array('id' => $id));
114 }
56c6950a 115 /*
116 if ($id == -1 && !(S::has('survey') && S::has('survey_id'))) {
117 return $this->show_error($page, "Un identifiant de sondage doit &#234;tre pr&#233;cis&#233;.", 'admin');
118 }
119 require_once dirname(__FILE__).'/survey/survey.inc.php';
120 if ($id == -1) { // the survey and survey_id are in session, performs the validation
121 $survey = unserialize(S::v('survey'));
122 $surveyInfo = $survey->storeArray();
123 if (Post::has('survey_submit')) { // needs a confirmation before validation
124 if (SurveyDB::validateSurvey(S::v('survey_id'))) { // validates the survey (in the database)
125 $this->show_success($page, "Le sondage \"".$surveyInfo['question']."\" a bien &#233;t&#233; valid&#233;, les votes sont maintenant ouverts.", 'admin');
126 } else {
127 $this->show_error($page, '', 'admin');
128 }
129 } else { // asks for a confirmation
130 $this->show_confirm($page, "&#202;tes-vous certain de vouloir valider le sondage \"".$surveyInfo['question']."\" ? "
131 ."Les votes seront imm&#233;diatement ouverts.", 'admin/valid');
132 }
133 } else { // a survey id is given, loads this survey for validation
134 $this->clear_session();
135 $survey = SurveyDB::retrieveSurvey($id); // retrieves all survey object structure
136 if ($survey == null) {
137 $this->show_error($page, "Sondage ".$id." introuvable.", 'admin');
138 }
139 $this->store_session($survey, $id);
140 $page->assign('survey_validmode', true);
141 $this->show_survey($page, $survey);
142 }
143 */
8fe81c50 144 }
145 // }}}
146
147 // {{{ function handler_adminDelete() : deletes a survey (admin mode)
148 function handler_adminDelete(&$page, $id = -1)
149 {
56c6950a 150 $id = Post::v('survey_id', $id);
8fe81c50 151 if (Post::has('survey_cancel')) { // if the admin cancels the suppression, returns to the admin index
56c6950a 152 return $this->handler_admin(&$page, $id);
8fe81c50 153 }
8fe81c50 154 if ($id == -1) {
155 return $this->show_error($page, "Un identifiant de sondage doit &#234;tre pr&#233;cis&#233;.", 'admin');
156 }
157 require_once dirname(__FILE__).'/survey/survey.inc.php';
158 $surveyInfo = SurveyDB::retrieveSurveyInfo($id); // retrieves information about the survey (does not retrieve and unserialize the object structure)
159 if ($surveyInfo == null) {
160 return $this->show_error($page, "Sondage ".$id." introuvable.", 'admin');
161 }
162 if (Post::has('survey_submit')) { // needs a confirmation before suppression
163 if (SurveyDB::deleteSurvey($id)) { // deletes survey in database
164 $this->show_success($page, "Le sondage \"".$surveyInfo['title']."\" a bien &#233;t&#233; supprim&#233;, ainsi que tous les votes le concernant.", 'admin');
165 } else {
166 $this->show_error($page, '', 'admin');
167 }
168 } else { // asks for a confirmation
56c6950a 169 $this->show_confirm($page, "&#202;tes-vous certain de vouloir supprimer le sondage \"".$surveyInfo['title']."\" ?", 'admin/del', array('id' => $id));
8fe81c50 170 }
171 }
172 // }}}
173
174 // {{{ function handler_edit() : edits a survey (in normal mode unless called by handler_adminEdit() )
175 function handler_edit(&$page, $action = 'show', $qid = 0)
176 {
177 require_once dirname(__FILE__).'/survey/survey.inc.php';
178 $action = Post::v('survey_action', $action);
179 $qid = Post::v('survey_qid', $qid);
180 if (Post::has('survey_cancel')) { // after cancelling changes, shows the survey
181 if (S::has('survey')) {
182 $action = 'show';
183 } else { // unless no editing has been done at all (shows to the surveys index page)
184 return $this->handler_index($page);
185 }
186 }
56c6950a 187 $page->assign('survey_editmode', true);
8fe81c50 188 if (S::has('survey_id')) { // if 'survey_id' is in session, it means we are modifying a survey in admin mode
56c6950a 189 $page->assign('survey_updatemode', true);
8fe81c50 190 }
191 if ($action == 'show' && !S::has('survey')) {
192 $action = 'new';
193 }
194 if ($action == 'question') { // {{{ modifies an existing question
195 if (Post::has('survey_submit')) { // if the form has been submitted, makes the modifications
196 $survey = unserialize(S::v('survey'));
197 $args = Post::v('survey_question');
198 if (!$survey->edit($qid, $args)) { // update the survey object structure
199 return $this->show_error($page, '', 'edit');
200 }
201 $this->show_survey($page, $survey);
56c6950a 202 $this->store_session($survey);
8fe81c50 203 } else { // if a form has not been submitted, shows modification form
204 $survey = unserialize(S::v('survey'));
205 $current = $survey->searchToArray($qid); // gets the current parameters of the question
206 if ($current == null) {
207 return $this->show_error($page, '', 'edit');
208 }
209 $this->show_form($page, $action, $qid, $current['type'], $current);
210 } // }}}
211 } elseif ($action == 'new') { // {{{ create a new survey : actually store the root question
212 if (Post::has('survey_submit')) { // if the form has been submitted, creates the survey
56c6950a 213 $this->clear_session();
8fe81c50 214 $survey = new SurveyRoot(Post::v('survey_question')); // creates the object structure
215 $this->show_survey($page, $survey);
56c6950a 216 $this->store_session($survey);
8fe81c50 217 } else {
56c6950a 218 $this->clear_session();
8fe81c50 219 $this->show_form($page, $action, 0, 'root');
220 } // }}}
221 } elseif ($action == 'nested' || $action == 'after') { // {{{ adds a new question, nested in the current node, or on the same level after it
222 if (Post::has('survey_submit')) { // if the form has been submitted, adds the question
223 $survey = unserialize(S::v('survey'));
224 $question = $survey->factory(Post::v('survey_type'), Post::v('survey_question')); // creates the question object, with a sort of 'factory' method
225 if ($action == 'nested') {
226 if (!$survey->addChildNested($qid, $question)) {
227 return $this->show_error($page, '', 'edit');
228 }
229 } else {
230 if (!$survey->addChildAfter($qid, $question)) {
231 return $this->show_error($page, '', 'edit');
232 }
233 }
234 $this->show_survey($page, $survey);
56c6950a 235 $this->store_session($survey);
8fe81c50 236 } else {
237 $this->show_form($page, $action, $qid);
238 } // }}}
239 } elseif ($action == 'del') { // {{{ deletes a question
240 if (Post::has('survey_submit')) { // if a confirmation has been sent, deletes the question
241 $survey = unserialize(S::v('survey'));
242 if (!$survey->delChild(Post::v('survey_qid'))) { // deletes the node in the survey object structure
243 return $this->show_error($page, '', 'edit');
244 }
245 $this->show_survey($page, $survey);
56c6950a 246 $this->store_session($survey);
8fe81c50 247 } else { // if user has not confirmed, shows a confirmation form
248 $survey = unserialize(S::v('survey'));
249 $current = $survey->searchToArray($qid); // needed to get the title of the question to delete (more user-friendly than an id)
250 if ($current == null) {
251 return $this->show_error($page, '', 'edit');
252 }
253 $this->show_confirm($page, '&#202;tes-vous certain de vouloir supprimer la question intitul&#233; "'.$current['question'].'" ? '
254 .'Attention, cela supprimera en m&#234;me temps toutes les questions qui d&#233;pendent de celle-ci.',
255 'edit', array('action' => 'del', 'qid' => $qid));
256 } // }}}
257 } elseif ($action == 'show') { // {{{ simply shows the survey in its current state
258 $this->show_survey($page, unserialize(S::v('survey'))); // }}}
259 } elseif ($action == 'valid') { // {{{ validates the proposition, i.e stores the proposition in the database
260 // but an admin will still need to validate the survey before it is activated
261 if (Post::has('survey_submit')) { // needs a confirmation before storing the proposition
262 $survey = unserialize(S::v('survey'));
263 if (S::has('survey_id')) { // if 'survey_id' is in session, we are modifying an existing survey (in admin mode) instead of proposing a new one
264 if (SurveyDB::updateSurvey($survey, S::v('survey_id'))) { // updates the database according the new survey object structure
265 $this->show_success($page, "Les modifications sur le sondage ont bien &#233;t&#233; enregistr&#233;es.", 'admin');
266 } else {
267 $this->show_error($page, '', 'admin');
268 }
269 } else { // if no 'survey_id' is in session, we are indeed proposing a new survey
270 if (SurveyDB::proposeSurvey($survey)) { // stores the survey object structure in database
271 $this->show_success($page, "Votre proposition de sondage a bien &#233;t&#233; enregistr&#233;e,
272 elle est en attent de validation par un administrateur du site.", '');
273 } else {
274 $this->show_error($page);
275 }
276 }
56c6950a 277 $this->clear_session();
8fe81c50 278 } else { // asks for a confirmation if it has not been sent
279 $survey = unserialize(S::v('survey'));
280 $errors = $survey->checkSyntax();
281 if (!is_null($errors)) {
282 $this->show_error($page, "", 'edit', $errors);
283 } else {
284 if (S::has('survey_id')) {
285 $this->show_confirm($page, "Veuillez confirmer l'enregistrement des modifications apport&#233;es &#224; ce sondage", 'edit', array('action' => 'valid'));
286 } else {
287 $this->show_confirm($page, "Veuillez confirmer l'envoi de cette proposition de sondage.", 'edit', array('action' => 'valid'));
288 }
289 }
290 } // }}}
291 } elseif ($action == 'cancel') { // {{{ cancels the creation/modification of a survey
292 if (Post::has('survey_submit')) { // needs a confirmation
8fe81c50 293 if (S::has('survey_id')) { // only possible when modifying a survey in admin mode, still this should be considered again,
56c6950a 294 $this->clear_session(); // maybe some name with "admin" in it, "survey_adminid" or anything that might not be confusing.
8fe81c50 295 return $this->handler_admin($page); // in this case, shows the admin index
296 } else {
56c6950a 297 $this->clear_session(); // cleans session
8fe81c50 298 return $this->handler_index($page); // else shows the 'normal' index
299 }
300 } else { // asks for a confirmation if it has not been sent
301 $this->show_confirm(&$page, "&#202;tes-vous certain de vouloir annuler totalement l'&#233;dition de ce sondage ? Attention, "
302 ."toutes les donn&#233;es &#233;dit&#233;es jusque l&#226; seront d&#233;finitivement perdues.",
303 'edit', array('action' => $action));
304 }
305 } // }}}
306 }
307 // }}}
308
309 // {{{ function handler_ajax() : some ajax in editing a new question (for now, there may be a little more later)
310 function handler_ajax(&$page, $type)
311 {
312 require_once dirname(__FILE__).'/survey/survey.inc.php';
313 header('Content-Type: text/html; charset="UTF-8"');
314 if (SurveyQuestion::isType($type)) { // when type has been chosen, the form is updated to fit exactly the type of question chosen
315 $page->changeTpl('survey/edit_new.tpl', NO_SKIN);
316 $page->assign('survey_types', SurveyQuestion::getTypes());
317 $page->assign('survey_type', $type);
318 }
319 }
320 // }}}
321
56c6950a 322 // {{{ function clear_session() : clears the data stored in session
323 function clear_session()
324 {
325 S::kill('survey');
326 S::kill('survey_id');
327 }
328 // }}}
329
330 // {{{ function store_session() : serializes and stores survey (and survey_id) in session
331 function store_session($survey, $survey_id = -1)
332 {
333 $_SESSION['survey'] = serialize($survey);
334 if ($survey_id != -1) {
335 $_SESSION['survey_id'] = $survey_id;
336 }
337 }
338 // }}}
339
8fe81c50 340 // {{{ function show_survey() : calls the template to display a survey, for editing, voting, or consulting the results
341 function show_survey(&$page, $survey)
342 {
56c6950a 343 $page->changeTpl('survey/show_root.tpl');
8fe81c50 344 $page->assign('survey', $survey->toArray());
345 }
346 // }}}
347
348 // {{{ function show_form() : calls the template to display the editing form
349 function show_form(&$page, $action, $qid, $type = 'new', $current = null)
350 {
351 $page->changeTpl('survey/edit_survey.tpl');
352 $page->assign('survey_action', $action);
353 $page->assign('survey_qid', $qid);
354 $page->assign('survey_formaction', './survey/edit');
355 $page->assign('survey_type', $type);
356 if (!is_null($current) && is_array($current)) {
357 $page->assign('survey_current', $current);
358 } elseif ($type == 'new') {
359 $page->addJsLink('ajax.js');
360 $page->assign('survey_types', SurveyQuestion::getTypes());
361 }
362 }
363 // }}}
364
365 // {{{ function show_confirm() : calls the template to display a confirm form
56c6950a 366 function show_confirm(&$page, $message, $formaction, $formhidden = null)
8fe81c50 367 {
368 $page->changeTpl('survey/confirm.tpl');
369 $page->assign('survey_message', $message);
370 $page->assign('survey_formaction', './survey/'.$formaction);
371 $page->assign('survey_formhidden', $formhidden);
372 }
373 // }}}
374
375 // {{{ function show_error() : calls the template to display an error message
376 function show_error(&$page, $message, $link = "", $errArray = null)
377 {
378 $page->changeTpl('survey/error.tpl');
379 $page->assign('survey_message', $message);
380 $page->assign('survey_link', './survey/'.$link); // 'return' link to let the user leave the page
381 if (!is_null($errArray)) {
382 $page->assign('survey_errors', $errArray);
383 }
384 }
385 // }}}
386
387 // {{{ function show_success() : calls the template to display a success message
388 function show_success(&$page, $message = "", $link = "")
389 {
390 $page->changeTpl('survey/success.tpl');
391 $page->assign('survey_message', $message);
392 $page->assign('survey_link', './survey/'.$link); // 'return' link to let the user leave the page
393 }
394 // }}}
395}
396
397// vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8:
398?>