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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 | |
22 | class SurveyModule extends PLModule |
23 | { |
24 | // {{{ function handlers() : registers the different handlers |
25 | function handlers() |
26 | { |
27 | return array( |
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28 | 'survey' => $this->make_hook('index', AUTH_PUBLIC), |
29 | 'survey/vote' => $this->make_hook('vote', AUTH_PUBLIC), |
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30 | 'survey/result' => $this->make_hook('result', AUTH_PUBLIC), |
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31 | 'survey/edit' => $this->make_hook('edit', AUTH_COOKIE), |
32 | 'survey/ajax' => $this->make_hook('ajax', AUTH_COOKIE), |
33 | 'survey/admin' => $this->make_hook('admin', AUTH_MDP, 'admin'), |
34 | 'survey/admin/edit' => $this->make_hook('adminEdit', AUTH_MDP, 'admin'), |
35 | 'survey/admin/valid' => $this->make_hook('adminValidate', AUTH_MDP, 'admin'), |
36 | 'survey/admin/del' => $this->make_hook('adminDelete', AUTH_MDP, 'admin'), |
37 | ); |
38 | } |
39 | // }}} |
40 | |
41 | // {{{ function handler_index() : lists all available surveys |
42 | function handler_index(&$page, $action = null) |
43 | { |
44 | require_once dirname(__FILE__).'/survey/survey.inc.php'; |
45 | $page->changeTpl('survey/index.tpl'); |
5c6e38d7 |
46 | $page->assign('survey_current', Survey::retrieveList('c')); |
47 | $page->assign('survey_old', Survey::retrieveList('o')); |
48 | $page->assign('survey_modes', Survey::getModes(false)); |
49 | } |
50 | // }}} |
51 | |
9f01f40b |
52 | // {{{ function handler_vote() : handles the vote to a survey |
5c6e38d7 |
53 | function handler_vote(&$page, $id = -1) |
54 | { |
55 | if (Post::has('survey_cancel')) { // if the user cancels, returns to index |
56 | return $this->handler_index(&$page); |
57 | } |
58 | $id = intval($id); |
59 | if ($id == -1) { |
60 | return $this->show_error($page, "Un identifiant de sondage doit être précisé.", ''); |
61 | } |
62 | require_once dirname(__FILE__).'/survey/survey.inc.php'; |
63 | $survey = Survey::retrieveSurvey($id); // retrieves the survey object structure |
64 | if ($survey == null || !$survey->isValid()) { |
65 | return $this->show_error($page, "Sondage ".$id." introuvable.", ''); |
66 | } elseif ($survey->isEnded()) { |
67 | return $this->show_error($page, "Le sondage ".$survey->getTitle()." est terminé."); |
68 | } |
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69 | if (!$this->check_surveyPerms($page, $survey)) { |
70 | return; |
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71 | } |
72 | if (Post::has('survey_submit')) { // checks if the survey has already been filled in |
73 | $uid = 0; |
74 | if (!$survey->isMode(Survey::MODE_ALL)) { // if survey is restriced to alumni |
75 | $uid = S::v('uid'); |
76 | if ($survey->hasVoted($uid)) { // checks whether the user has already voted |
77 | return $this->show_error($page, "Tu as déjà voté à ce sondage."); |
78 | } |
79 | } |
80 | $survey->vote($uid, Post::v('survey'.$id)); // performs vote |
81 | $this->show_success($page, "Ta réponse a bien été prise en compte. Merci d'avoir participé à ce sondage.", ''); |
82 | } else { // offers to fill in the survey |
83 | if ($survey->isMode(Survey::MODE_ALL) || !$survey->hasVoted(S::v('uid'))) { |
84 | $page->assign('survey_votemode', true); |
85 | } else { |
86 | $page->assign('survey_warning', "Tu as déjà voté à ce sondage."); |
87 | } |
88 | //$page->assign('survey_id', $id); |
89 | $this->show_survey($page, $survey); |
90 | } |
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91 | } |
92 | // }}} |
93 | |
9f01f40b |
94 | // {{{ function handler_result() : show the results of the votes to a survey |
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95 | function handler_result($page, $id = -1, $show = 'all') |
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96 | { |
97 | $id = intval($id); |
98 | if ($id == -1) { |
99 | return $this->show_error($page, "Un identifiant de sondage doit être précisé.", ''); |
100 | } |
101 | require_once dirname(__FILE__).'/survey/survey.inc.php'; |
102 | $survey = Survey::retrieveSurvey($id); // retrieves the survey object structure |
103 | if ($survey == null || !$survey->isValid()) { |
104 | return $this->show_error($page, "Sondage ".$id." introuvable.", ''); |
105 | } elseif (!$survey->isEnded()) { |
106 | return $this->show_error($page, "Le sondage ".$survey->getTitle()." n'est pas encore terminé."); |
107 | } |
108 | if (!$this->check_surveyPerms($page, $survey)) { |
109 | return; |
110 | } |
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111 | if ($show == 'csv') { |
112 | header('Content-Type: text/csv; charset="UTF-8"'); |
113 | echo $survey->toCSV(); |
114 | exit; |
115 | } else { |
116 | $page->assign('survey_resultmode', true); |
117 | $this->show_survey($page, $survey); |
118 | } |
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119 | } |
120 | // }}} |
121 | |
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122 | // {{{ function handler_admin() : index of admin mode |
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123 | function handler_admin(&$page, $id = -1) |
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124 | { |
125 | require_once dirname(__FILE__).'/survey/survey.inc.php'; |
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126 | $this->clear_session(); |
127 | if ($id == -1) { |
128 | $page->changeTpl('survey/admin.tpl'); |
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129 | $page->assign('survey_waiting', Survey::retrieveList('w')); |
130 | $page->assign('survey_current', Survey::retrieveList('c')); |
131 | $page->assign('survey_old', Survey::retrieveList('o')); |
132 | $page->assign('survey_modes', Survey::getModes(false)); |
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133 | } else { |
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134 | $id = intval($id); |
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135 | $survey = Survey::retrieveSurvey($id); // retrieves all survey object structure |
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136 | if ($survey == null) { |
137 | $this->show_error($page, "Sondage ".$id." introuvable.", 'admin'); |
138 | } |
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139 | $page->assign('survey_adminmode', true); |
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140 | $this->show_survey($page, $survey); |
141 | } |
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142 | } |
143 | // }}} |
144 | |
145 | // {{{ function handler_adminEdit() : edits a survey in admin mode |
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146 | function handler_adminEdit(&$page, $id = -1) |
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147 | { |
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148 | if ($id == -1) { |
149 | return $this->show_error($page, "Un identifiant de sondage doit être précisé.", 'admin'); |
150 | } |
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151 | $id = intval($id); |
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152 | require_once dirname(__FILE__).'/survey/survey.inc.php'; |
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153 | $survey = Survey::retrieveSurvey($id); // retrieves the survey in database |
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154 | $this->clear_session(); // cleans session (in case there would have been a problem before) |
56c6950a |
155 | $this->store_session($survey, $id); |
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156 | $this->handler_edit($page, 'show'); // calls handler_edit, but in admin mode since 'survey_id' is in session |
157 | } |
158 | // }}} |
159 | |
160 | // {{{ function handler_adminValidate() : validates a survey (admin mode) |
161 | function handler_adminValidate(&$page, $id = -1) |
162 | { |
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163 | $id = Post::i('survey_id', $id); |
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164 | if (Post::has('survey_cancel')) { // if the admin cancels the validation, returns to the admin index |
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165 | $this->clear_session(); |
166 | return $this->handler_admin(&$page, $id); |
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167 | } |
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168 | if ($id == -1) { |
169 | return $this->show_error($page, "Un identifiant de sondage doit être précisé.", 'admin'); |
170 | } |
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171 | $id = intval($id); |
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172 | require_once dirname(__FILE__).'/survey/survey.inc.php'; |
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173 | $surveyInfo = Survey::retrieveSurveyInfo($id); // retrieves information about the survey (does not retrieve and unserialize the object structure) |
8fe81c50 |
174 | if ($surveyInfo == null) { |
175 | return $this->show_error($page, "Sondage ".$id." introuvable.", 'admin'); |
176 | } |
177 | if (Post::has('survey_submit')) { // needs a confirmation before validation |
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178 | if (Survey::validateSurvey($id)) { // validates the survey (in the database) |
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179 | $this->show_success($page, "Le sondage \"".$surveyInfo['title']."\" a bien été validé, les votes sont maintenant ouverts.", 'admin'); |
180 | } else { |
181 | $this->show_error($page, '', 'admin'); |
182 | } |
183 | } else { // asks for a confirmation |
184 | $this->show_confirm($page, "Êtes-vous certain de vouloir valider le sondage \"".$surveyInfo['title']."\" ? " |
185 | ."Les votes seront immédiatement ouverts.", 'admin/valid', array('id' => $id)); |
186 | } |
187 | } |
188 | // }}} |
189 | |
190 | // {{{ function handler_adminDelete() : deletes a survey (admin mode) |
191 | function handler_adminDelete(&$page, $id = -1) |
192 | { |
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193 | $id = Post::i('survey_id', $id); |
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194 | if (Post::has('survey_cancel')) { // if the admin cancels the suppression, returns to the admin index |
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195 | return $this->handler_admin(&$page, $id); |
8fe81c50 |
196 | } |
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197 | if ($id == -1) { |
198 | return $this->show_error($page, "Un identifiant de sondage doit être précisé.", 'admin'); |
199 | } |
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200 | $id = intval($id); |
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201 | require_once dirname(__FILE__).'/survey/survey.inc.php'; |
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202 | $surveyInfo = Survey::retrieveSurveyInfo($id); // retrieves information about the survey (does not retrieve and unserialize the object structure) |
8fe81c50 |
203 | if ($surveyInfo == null) { |
204 | return $this->show_error($page, "Sondage ".$id." introuvable.", 'admin'); |
205 | } |
206 | if (Post::has('survey_submit')) { // needs a confirmation before suppression |
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207 | if (Survey::deleteSurvey($id)) { // deletes survey in database |
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208 | $this->show_success($page, "Le sondage \"".$surveyInfo['title']."\" a bien été supprimé, ainsi que tous les votes le concernant.", 'admin'); |
209 | } else { |
210 | $this->show_error($page, '', 'admin'); |
211 | } |
212 | } else { // asks for a confirmation |
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213 | $this->show_confirm($page, "Êtes-vous certain de vouloir supprimer le sondage \"".$surveyInfo['title']."\" ?", 'admin/del', array('id' => $id)); |
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214 | } |
215 | } |
216 | // }}} |
217 | |
218 | // {{{ function handler_edit() : edits a survey (in normal mode unless called by handler_adminEdit() ) |
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219 | function handler_edit(&$page, $action = 'show', $qid = 'root') |
8fe81c50 |
220 | { |
221 | require_once dirname(__FILE__).'/survey/survey.inc.php'; |
222 | $action = Post::v('survey_action', $action); |
223 | $qid = Post::v('survey_qid', $qid); |
224 | if (Post::has('survey_cancel')) { // after cancelling changes, shows the survey |
225 | if (S::has('survey')) { |
226 | $action = 'show'; |
227 | } else { // unless no editing has been done at all (shows to the surveys index page) |
228 | return $this->handler_index($page); |
229 | } |
230 | } |
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231 | $page->assign('survey_editmode', true); |
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232 | if (S::has('survey_id')) { // if 'survey_id' is in session, it means we are modifying a survey in admin mode |
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233 | $page->assign('survey_updatemode', true); |
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234 | } |
235 | if ($action == 'show' && !S::has('survey')) { |
236 | $action = 'new'; |
237 | } |
238 | if ($action == 'question') { // {{{ modifies an existing question |
239 | if (Post::has('survey_submit')) { // if the form has been submitted, makes the modifications |
240 | $survey = unserialize(S::v('survey')); |
241 | $args = Post::v('survey_question'); |
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242 | if (!$survey->editQuestion($qid, $args)) { // update the survey object structure |
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243 | return $this->show_error($page, '', 'edit'); |
244 | } |
245 | $this->show_survey($page, $survey); |
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246 | $this->store_session($survey); |
8fe81c50 |
247 | } else { // if a form has not been submitted, shows modification form |
248 | $survey = unserialize(S::v('survey')); |
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249 | $current = $survey->toArray($qid); // gets the current parameters of the question |
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250 | if ($current == null) { |
251 | return $this->show_error($page, '', 'edit'); |
252 | } |
253 | $this->show_form($page, $action, $qid, $current['type'], $current); |
254 | } // }}} |
255 | } elseif ($action == 'new') { // {{{ create a new survey : actually store the root question |
256 | if (Post::has('survey_submit')) { // if the form has been submitted, creates the survey |
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257 | $this->clear_session(); |
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258 | $survey = new Survey(Post::v('survey_question')); // creates the object structure |
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259 | $this->show_survey($page, $survey); |
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260 | $this->store_session($survey); |
8fe81c50 |
261 | } else { |
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262 | $this->clear_session(); |
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263 | $this->show_form($page, $action, 'root', 'root'); |
8fe81c50 |
264 | } // }}} |
5c6e38d7 |
265 | } elseif ($action == 'add') { // {{{ adds a new question |
8fe81c50 |
266 | if (Post::has('survey_submit')) { // if the form has been submitted, adds the question |
267 | $survey = unserialize(S::v('survey')); |
5c6e38d7 |
268 | if (!$survey->addQuestion($qid, $survey->factory(Post::v('survey_type'), Post::v('survey_question')))) { |
269 | return $this->show_error($page, '', 'edit'); |
8fe81c50 |
270 | } |
271 | $this->show_survey($page, $survey); |
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272 | $this->store_session($survey); |
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273 | } else { |
274 | $this->show_form($page, $action, $qid); |
275 | } // }}} |
276 | } elseif ($action == 'del') { // {{{ deletes a question |
277 | if (Post::has('survey_submit')) { // if a confirmation has been sent, deletes the question |
278 | $survey = unserialize(S::v('survey')); |
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279 | if (!$survey->delQuestion(Post::v('survey_qid'))) { // deletes the node in the survey object structure |
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280 | return $this->show_error($page, '', 'edit'); |
281 | } |
282 | $this->show_survey($page, $survey); |
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283 | $this->store_session($survey); |
8fe81c50 |
284 | } else { // if user has not confirmed, shows a confirmation form |
285 | $survey = unserialize(S::v('survey')); |
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286 | $current = $survey->toArray($qid); // needed to get the title of the question to delete (more user-friendly than an id) |
8fe81c50 |
287 | if ($current == null) { |
288 | return $this->show_error($page, '', 'edit'); |
289 | } |
290 | $this->show_confirm($page, 'Êtes-vous certain de vouloir supprimer la question intitulé "'.$current['question'].'" ? ' |
291 | .'Attention, cela supprimera en même temps toutes les questions qui dépendent de celle-ci.', |
292 | 'edit', array('action' => 'del', 'qid' => $qid)); |
293 | } // }}} |
294 | } elseif ($action == 'show') { // {{{ simply shows the survey in its current state |
295 | $this->show_survey($page, unserialize(S::v('survey'))); // }}} |
296 | } elseif ($action == 'valid') { // {{{ validates the proposition, i.e stores the proposition in the database |
297 | // but an admin will still need to validate the survey before it is activated |
298 | if (Post::has('survey_submit')) { // needs a confirmation before storing the proposition |
299 | $survey = unserialize(S::v('survey')); |
300 | if (S::has('survey_id')) { // if 'survey_id' is in session, we are modifying an existing survey (in admin mode) instead of proposing a new one |
5c6e38d7 |
301 | if ($survey->updateSurvey()) { // updates the database according the new survey object structure |
8fe81c50 |
302 | $this->show_success($page, "Les modifications sur le sondage ont bien été enregistrées.", 'admin'); |
303 | } else { |
304 | $this->show_error($page, '', 'admin'); |
305 | } |
306 | } else { // if no 'survey_id' is in session, we are indeed proposing a new survey |
5c6e38d7 |
307 | if ($survey->proposeSurvey()) { // stores the survey object structure in database |
8fe81c50 |
308 | $this->show_success($page, "Votre proposition de sondage a bien été enregistrée, |
309 | elle est en attent de validation par un administrateur du site.", ''); |
310 | } else { |
311 | $this->show_error($page); |
312 | } |
313 | } |
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314 | $this->clear_session(); |
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315 | } else { // asks for a confirmation if it has not been sent |
316 | $survey = unserialize(S::v('survey')); |
317 | $errors = $survey->checkSyntax(); |
318 | if (!is_null($errors)) { |
319 | $this->show_error($page, "", 'edit', $errors); |
320 | } else { |
321 | if (S::has('survey_id')) { |
322 | $this->show_confirm($page, "Veuillez confirmer l'enregistrement des modifications apportées à ce sondage", 'edit', array('action' => 'valid')); |
323 | } else { |
324 | $this->show_confirm($page, "Veuillez confirmer l'envoi de cette proposition de sondage.", 'edit', array('action' => 'valid')); |
325 | } |
326 | } |
327 | } // }}} |
328 | } elseif ($action == 'cancel') { // {{{ cancels the creation/modification of a survey |
329 | if (Post::has('survey_submit')) { // needs a confirmation |
8fe81c50 |
330 | if (S::has('survey_id')) { // only possible when modifying a survey in admin mode, still this should be considered again, |
56c6950a |
331 | $this->clear_session(); // maybe some name with "admin" in it, "survey_adminid" or anything that might not be confusing. |
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332 | return $this->handler_admin($page); // in this case, shows the admin index |
333 | } else { |
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334 | $this->clear_session(); // cleans session |
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335 | return $this->handler_index($page); // else shows the 'normal' index |
336 | } |
337 | } else { // asks for a confirmation if it has not been sent |
338 | $this->show_confirm(&$page, "Êtes-vous certain de vouloir annuler totalement l'édition de ce sondage ? Attention, " |
339 | ."toutes les données éditées jusque lâ seront définitivement perdues.", |
340 | 'edit', array('action' => $action)); |
341 | } |
342 | } // }}} |
343 | } |
344 | // }}} |
345 | |
346 | // {{{ function handler_ajax() : some ajax in editing a new question (for now, there may be a little more later) |
347 | function handler_ajax(&$page, $type) |
348 | { |
349 | require_once dirname(__FILE__).'/survey/survey.inc.php'; |
350 | header('Content-Type: text/html; charset="UTF-8"'); |
5c6e38d7 |
351 | if (Survey::isType($type)) { // when type has been chosen, the form is updated to fit exactly the type of question chosen |
8fe81c50 |
352 | $page->changeTpl('survey/edit_new.tpl', NO_SKIN); |
5c6e38d7 |
353 | $page->assign('survey_types', Survey::getTypes()); |
8fe81c50 |
354 | $page->assign('survey_type', $type); |
355 | } |
356 | } |
357 | // }}} |
358 | |
56c6950a |
359 | // {{{ function clear_session() : clears the data stored in session |
360 | function clear_session() |
361 | { |
362 | S::kill('survey'); |
363 | S::kill('survey_id'); |
364 | } |
365 | // }}} |
366 | |
367 | // {{{ function store_session() : serializes and stores survey (and survey_id) in session |
368 | function store_session($survey, $survey_id = -1) |
369 | { |
370 | $_SESSION['survey'] = serialize($survey); |
371 | if ($survey_id != -1) { |
372 | $_SESSION['survey_id'] = $survey_id; |
373 | } |
374 | } |
375 | // }}} |
376 | |
9f01f40b |
377 | // {{{ function check_surveyPerms() : checks the particular surveys access permissions |
378 | function check_surveyPerms(&$page, $survey) |
379 | { |
380 | require_once dirname(__FILE__).'/survey/survey.inc.php'; |
381 | if (!$survey->isMode(Survey::MODE_ALL)) { // if the survey is reserved to alumni |
382 | global $globals; |
383 | if (!call_user_func(array($globals->session, 'doAuth'))) { // checks authentification |
384 | global $platal; |
385 | $platal->force_login($page); |
386 | } |
387 | if (!$survey->checkPromo(S::v('promo'))) { // checks promotion |
388 | $this->show_error($page, "Tu n'as pas accès à ce sondage car il est réservé à d'autres promotions."); |
389 | return false; |
390 | } |
391 | } |
392 | return true; |
393 | } |
394 | // }}} |
395 | |
8fe81c50 |
396 | // {{{ function show_survey() : calls the template to display a survey, for editing, voting, or consulting the results |
397 | function show_survey(&$page, $survey) |
398 | { |
56c6950a |
399 | $page->changeTpl('survey/show_root.tpl'); |
8fe81c50 |
400 | $page->assign('survey', $survey->toArray()); |
5c6e38d7 |
401 | $page->assign('survey_modes', Survey::getModes()); |
8fe81c50 |
402 | } |
403 | // }}} |
404 | |
405 | // {{{ function show_form() : calls the template to display the editing form |
406 | function show_form(&$page, $action, $qid, $type = 'new', $current = null) |
407 | { |
408 | $page->changeTpl('survey/edit_survey.tpl'); |
409 | $page->assign('survey_action', $action); |
410 | $page->assign('survey_qid', $qid); |
411 | $page->assign('survey_formaction', './survey/edit'); |
412 | $page->assign('survey_type', $type); |
413 | if (!is_null($current) && is_array($current)) { |
414 | $page->assign('survey_current', $current); |
415 | } elseif ($type == 'new') { |
416 | $page->addJsLink('ajax.js'); |
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417 | $page->assign('survey_types', Survey::getTypes()); |
418 | } |
419 | if ($type == 'root') { |
420 | $page->assign('survey_modes', Survey::getModes()); |
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421 | } |
422 | } |
423 | // }}} |
424 | |
425 | // {{{ function show_confirm() : calls the template to display a confirm form |
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426 | function show_confirm(&$page, $message, $formaction, $formhidden = null) |
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427 | { |
428 | $page->changeTpl('survey/confirm.tpl'); |
429 | $page->assign('survey_message', $message); |
430 | $page->assign('survey_formaction', './survey/'.$formaction); |
431 | $page->assign('survey_formhidden', $formhidden); |
432 | } |
433 | // }}} |
434 | |
435 | // {{{ function show_error() : calls the template to display an error message |
436 | function show_error(&$page, $message, $link = "", $errArray = null) |
437 | { |
438 | $page->changeTpl('survey/error.tpl'); |
439 | $page->assign('survey_message', $message); |
440 | $page->assign('survey_link', './survey/'.$link); // 'return' link to let the user leave the page |
441 | if (!is_null($errArray)) { |
442 | $page->assign('survey_errors', $errArray); |
443 | } |
444 | } |
445 | // }}} |
446 | |
447 | // {{{ function show_success() : calls the template to display a success message |
448 | function show_success(&$page, $message = "", $link = "") |
449 | { |
450 | $page->changeTpl('survey/success.tpl'); |
451 | $page->assign('survey_message', $message); |
452 | $page->assign('survey_link', './survey/'.$link); // 'return' link to let the user leave the page |
453 | } |
454 | // }}} |
455 | } |
456 | |
457 | // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8: |
458 | ?> |