class.ilSurveyPhrasesGUI.php

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<?php
 /*
   +----------------------------------------------------------------------------+
   | ILIAS open source                                                          |
   +----------------------------------------------------------------------------+
   | Copyright (c) 1998-2001 ILIAS open source, University of Cologne           |
   |                                                                            |
   | This program is free software; you can redistribute it and/or              |
   | modify it under the terms of the GNU General Public License                |
   | as published by the Free Software Foundation; either version 2             |
   | of the License, or (at your option) any later version.                     |
   |                                                                            |
   | This program is distributed in the hope that it will be useful,            |
   | but WITHOUT ANY WARRANTY; without even the implied warranty of             |
   | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the              |
   | GNU General Public License for more details.                               |
   |                                                                            |
   | You should have received a copy of the GNU General Public License          |
   | along with this program; if not, write to the Free Software                |
   | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
   +----------------------------------------------------------------------------+
*/

class ilSurveyPhrasesGUI
{
        var $object;
        var $gui_object;
        var $lng;
        var $tpl;
        var $ctrl;
        var $ilias;
        var $tree;
        var $ref_id;
        
        function __construct($a_object)
        {
                global $lng, $tpl, $ilCtrl, $ilias, $tree;

                include_once "./Modules/SurveyQuestionPool/classes/class.ilSurveyPhrases.php";
                $this->lng =& $lng;
                $this->tpl =& $tpl;
                $this->ctrl =& $ilCtrl;
                $this->ilias =& $ilias;
                $this->gui_object =& $a_object;
                $this->object = new ilSurveyPhrases();
                $this->tree =& $tree;
                $this->ref_id = $a_object->ref_id;
                $this->ctrl->saveParameter($this, "p_id");
        }
        
        public function &executeCommand()
        {
                $cmd = $this->ctrl->getCmd();
                $next_class = $this->ctrl->getNextClass($this);

                $cmd = $this->getCommand($cmd);
                switch($next_class)
                {
                        default:
                                $ret =& $this->$cmd();
                                break;
                }
                return $ret;
        }

        public function getCommand($cmd)
        {
                return $cmd;
        }
        
        public function deletePhrase()
        {
                ilUtil::sendInfo();

                $checked_phrases = $_POST['phrase'];
                if (count($checked_phrases))
                {
                        ilUtil::sendQuestion($this->lng->txt("qpl_confirm_delete_phrases"));
                        $this->deletePhrasesForm($checked_phrases);
                        return;
                }
                else
                {
                        ilUtil::sendInfo($this->lng->txt("qpl_delete_phrase_select_none"));
                        $this->phrases();
                        return;
                }
        }

        public function phrases()
        {
                global $rbacsystem, $ilToolbar;
                
                $this->ctrl->setParameter($this, "p_id", "");
                
                if ($rbacsystem->checkAccess("write", $this->ref_id))
                {                       
                        include_once "Services/UIComponent/Button/classes/class.ilLinkButton.php";
                        $button = ilLinkButton::getInstance();
                        $button->setCaption("phrase_new");                                                              
                        $button->setUrl($this->ctrl->getLinkTarget($this, "newPhrase"));                                                                                
                        $ilToolbar->addButtonInstance($button);         
                
                        include_once "./Modules/SurveyQuestionPool/classes/tables/class.ilSurveyPhrasesTableGUI.php";
                        $table_gui = new ilSurveyPhrasesTableGUI($this, 'phrases');
                        $phrases =& ilSurveyPhrases::_getAvailablePhrases(1);
                        $data = array();
                        foreach ($phrases as $phrase_id => $phrase_array)
                        {
                                $categories =& ilSurveyPhrases::_getCategoriesForPhrase($phrase_id);
                                array_push($data, array('phrase_id' => $phrase_id, 'phrase' => $phrase_array["title"], 'answers' => join($categories, ", ")));
                        }
                        $table_gui->setData($data);
                        $this->tpl->setContent($table_gui->getHTML());  
                }
                else
                {
                        ilUtil::sendInfo($this->lng->txt("cannot_manage_phrases"));
                }
        }

        public function cancelDeletePhrase()
        {
                $this->ctrl->redirect($this, "phrases");
        }
        
        public function confirmDeletePhrase()
        {
                $phrases = $_POST['phrase'];
                $this->object->deletePhrases($phrases);
                ilUtil::sendSuccess($this->lng->txt("qpl_phrases_deleted"), true);
                $this->ctrl->redirect($this, "phrases");
        }

        protected function getCategoriesForPhrase($phrase_id)
        {
                global $ilDB;
                
                include_once "./Modules/SurveyQuestionPool/classes/class.SurveyCategories.php";
                $categories = new SurveyCategories();
                $result = $ilDB->queryF("SELECT svy_category.title, svy_category.neutral, svy_phrase_cat.sequence FROM svy_phrase_cat, svy_category WHERE svy_phrase_cat.phrase_fi = %s AND svy_phrase_cat.category_fi = svy_category.category_id ORDER BY svy_phrase_cat.sequence ASC",
                        array('integer'),
                        array($phrase_id)
                );
                if ($result->numRows() > 0) 
                {
                        while ($data = $ilDB->fetchAssoc($result)) 
                        {
                                $categories->addCategory($data["title"], 0, $data["neutral"], null, $data['sequence']);
                        }
                }
                return $categories;
        }
        
        protected function getPhraseTitle($phrase_id)
        {
                global $ilDB;
                
                $result = $ilDB->queryF("SELECT svy_phrase.title FROM svy_phrase WHERE svy_phrase.phrase_id = %s",
                        array('integer'),
                        array($phrase_id)
                );
                if ($result->numRows() > 0) 
                {
                        $row = $ilDB->fetchAssoc($result);
                        return $row['title'];
                }
                return null;
        }
        
        public function deletePhrasesForm($checked_phrases)
        {
                include_once "./Modules/SurveyQuestionPool/classes/tables/class.ilSurveyPhrasesTableGUI.php";
                $table_gui = new ilSurveyPhrasesTableGUI($this, 'phrases', true);
                $phrases =& ilSurveyPhrases::_getAvailablePhrases(1);
                $data = array();
                foreach ($checked_phrases as $phrase_id)
                {
                        $phrase_array = $phrases[$phrase_id];
                        $categories =& ilSurveyPhrases::_getCategoriesForPhrase($phrase_id);
                        array_push($data, array('phrase_id' => $phrase_id, 'phrase' => $phrase_array["title"], 'answers' => join($categories, ", ")));
                }
                $table_gui->setData($data);
                $this->tpl->setVariable('ADM_CONTENT', $table_gui->getHTML());  
        }
        
        public function cancelEditPhrase()
        {
                $this->ctrl->redirect($this, 'phrases');
        }
        
        public function saveEditPhrase()
        {
                $result = $this->writePostData();
                if ($result == 0)
                {
                        if ($_GET['p_id'])
                        {
                                $this->object->updatePhrase($_GET['p_id']);
                                ilUtil::sendSuccess($this->lng->txt('phrase_saved'), true);
                        }
                        else
                        {
                                $this->object->savePhrase();
                                ilUtil::sendSuccess($this->lng->txt('phrase_added'), true);
                        }
                        $this->ctrl->redirect($this, 'phrases');
                }
        }

        function writePostData($always = false)
        {
                global $ilDB;
                $hasErrors = (!$always) ? $this->phraseEditor(true) : false;
                if (!$hasErrors)
                {
                        $this->object->title = $_POST["title"];
                        include_once "./Modules/SurveyQuestionPool/classes/class.SurveyCategories.php";
                        $categories = new SurveyCategories();
                        foreach ($_POST['answers']['answer'] as $key => $value) 
                        {
                                if (strlen($value)) $categories->addCategory($value, $_POST['answers']['other'][$key], 0, null, $_POST['answers']['scale'][$key]);
                        }
                        if (strlen($_POST['answers']['neutral']))
                        {
                                $categories->addCategory($_POST['answers']['neutral'], 0, 1, null, $_POST['answers_neutral_scale']);
                        }
                        $this->object->categories = $categories;
                        return 0;
                }
                else
                {
                        return 1;
                }
        }
        
        public function newPhrase()
        {
                $this->ctrl->redirect($this, 'phraseEditor');
        }
        
        public function editPhrase()
        {
                if (!array_key_exists('phrase', $_POST))
                {
                        ilUtil::sendFailure($this->lng->txt('no_phrase_selected'), true);
                        $this->ctrl->redirect($this, 'phrases');
                }
                if ((array_key_exists('phrase', $_POST)) && count($_POST['phrase']) > 1)
                {
                        ilUtil::sendFailure($this->lng->txt('select_max_one_item'), true);
                        $this->ctrl->redirect($this, 'phrases');
                }
                $phrase_id = (array_key_exists('phrase', $_POST)) ? $_POST['phrase'][key($_POST['phrase'])] : null;
                if ($phrase_id)
                {
                        $this->ctrl->setParameter($this, 'p_id', $phrase_id);
                }
                $this->ctrl->redirect($this, 'phraseEditor');
        }

        public function phraseEditor($checkonly = FALSE)
        {
                $save = (strcmp($this->ctrl->getCmd(), "saveEditPhrase") == 0) ? TRUE : FALSE;

                include_once("./Services/Form/classes/class.ilPropertyFormGUI.php");
                $form = new ilPropertyFormGUI();
                $form->setFormAction($this->ctrl->getFormAction($this, 'phraseEditor'));
                $form->setTitle($this->lng->txt('edit_phrase'));
                $form->setMultipart(FALSE);
                $form->setTableWidth("100%");
                $form->setId("phraseeditor");

                $phrase_id = $_GET['p_id'];

                // title
                $title = new ilTextInputGUI($this->lng->txt("title"), "title");
                $title->setValue($this->getPhraseTitle($phrase_id));
                $title->setRequired(TRUE);
                $form->addItem($title);

                // Answers
                include_once "./Modules/SurveyQuestionPool/classes/class.ilCategoryWizardInputGUI.php";
                $answers = new ilCategoryWizardInputGUI($this->lng->txt("answers"), "answers");
                $answers->setRequired(true);
                $answers->setAllowMove(true);
                $answers->setShowWizard(false );
                $answers->setShowSavePhrase(false);
                $answers->setUseOtherAnswer(false);
                $answers->setShowNeutralCategory(true);
                $answers->setNeutralCategoryTitle($this->lng->txt('matrix_neutral_answer'));
                include_once "./Modules/SurveyQuestionPool/classes/class.SurveyCategories.php";
                $categories =& $this->getCategoriesForPhrase($phrase_id);
                if (!$categories->getCategoryCount())
                {
                        $categories->addCategory("");
                }
                $answers->setValues($categories);
                $answers->setDisabledScale(true);
                $form->addItem($answers);

                $form->addCommandButton("saveEditPhrase", $this->lng->txt("save"));
                $form->addCommandButton("cancelEditPhrase", $this->lng->txt("cancel"));

                $errors = false;

                if ($save)
                {
                        $form->setValuesByPost();
                        $errors = !$form->checkInput();
                        $form->setValuesByPost(); // again, because checkInput now performs the whole stripSlashes handling and we need this if we don't want to have duplication of backslashes
                        if ($errors) $checkonly = false;
                }

                if (!$checkonly) $this->tpl->setVariable("ADM_CONTENT", $form->getHTML());
                return $errors;
        }

}
?>