actions/edit.php

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<?php
/********************************************************************************
 *
 *  Xataface Web Application Framework for PHP and MySQL
 *  Copyright (C) 2006  Steve Hannah <shannah@sfu.ca>
 *  
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *  
 *  This library 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
 *  Lesser General Public License for more details.
 *  
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 *===============================================================================
 */
class dataface_actions_edit {
        function handle(&$params){
                import( 'Dataface/FormTool.php');
                import( 'Dataface/QuickForm.php');
                
                                
                $app =& Dataface_Application::getInstance();
                $query =& $app->getQuery();
                $resultSet =& $app->getResultSet();
                
                $currentRecord =& $app->getRecord();
                $currentTable =& Dataface_Table::loadTable($query['-table']);
                if ( !isset($query['--tab']) and count($currentTable->tabs($currentRecord)) > 1 ){
                        list($query['--tab']) = array_keys($currentTable->tabs($currentRecord));
                } else if ( count($currentTable->tabs($currentRecord)) <= 1 ){
                        unset($query['--tab']);
                }
                
                
                
                /*
                 *
                 * Create the quickform for the current record.
                 *
                 */
                //$form = new Dataface_QuickForm($query['-table'], $app->db(),  $query);
                $formTool =& Dataface_FormTool::getInstance();
                
                
                if ( $resultSet->found()> @$query['-cursor']){
                        $form = $formTool->createRecordForm($currentRecord, false, @$query['--tab'], $query);
                        /*
                         * There is either a result to edit, or we are creating a new record.
                         *
                         */
                         
                        $res = $form->_build();
                        if ( PEAR::isError($res) ){
                                error_log($res->toString().implode("\n", $res->getBacktrace()));
                                throw new Exception("An error occurred while building the edit form.  See error log for details.", E_USER_ERROR);
                                
                        
                        }
                        $formTool->decorateRecordForm($currentRecord, $form, false, @$query['--tab']);
                        
                        
                        /*
                         *
                         * We need to add the current GET parameter flags (the GET vars starting with '-') so
                         * that the controller knows to pass control to this method again upon form submission.
                         *
                         */
                        foreach ( $query as $key=>$value){
                                if ( strpos($key,'-')===0 ){
                                        $form->addElement('hidden', $key);
                                        $form->setDefaults( array( $key=>$value) );
                                        
                                }
                        }
                        
                        /*
                         * Store the current query string (the portion after the '?') in the form, so we 
                         * can retrieve it after and redirect back to our original location.
                         */
                        $form->addElement('hidden', '-query');
                        $form->setDefaults( array( '-action'=>$query['-action'],'-query'=>$_SERVER['QUERY_STRING']) );
                        
                        
                        /*
                         * 
                         * We have to deal with 3 cases.
                         *      1) The form has not been submitted.
                         *      2) The form was submitted but didn't validate (ie: it had some bad input)
                         *      3) The form was submitted and was validated.
                         *
                         * We deal with Case 3 first...
                         *
                         */
                
                        if ( $formTool->validateRecordForm($currentRecord, $form, false, @$query['--tab']) ){
                                /*
                                 *
                                 * The form was submitted and it validated ok.  We now process it (ie: save its contents).
                                 *
                                 */
                                $app->clearMessages();
                                $formTool->handleTabSubmit($currentRecord, $form, @$query['--tab']);
                                if ( !isset($query['--tab']) ){
                                        // If we aren't using tabs we just do it the old way.
                                        // (If it ain't broke don't fix it
                                        
                                        $result = $form->process( array( &$form, 'save') );
                                } else {
                                        // If we are using tabs, we will use the formtool's 
                                        // session aware saving function
                                        
                                        $result = $formTool->saveSession($currentRecord);
                                }
                                $success = true;
                                $response =& Dataface_Application::getResponse();
                                
                                if ( !$result ){
                                        error_log("Error occurred in save: ".mysql_error( $app->db()).Dataface_Error::printStackTrace());
                                        throw new Exception("An error occurred while attempting to save the record.  See error log for details.", E_USER_ERROR);
                                } else if ( PEAR::isError($result) && !Dataface_Error::isNotice($result) ){
                                        
                                        if ( Dataface_Error::isDuplicateEntry($result) ){
                                                $app->addError($result);
                                                $success = false;
                                                
                                        } else {
                                                error_log($result->toString(). implode("\n", $result->getBacktrace()));
                                                throw new Exception("An error occurred while attempting to save the record.  See error log for details.", E_USER_ERROR);
                                                
                                        }
                                } else if ( Dataface_Error::isNotice($result) ){
                                        $app->addError($result);

                                        //$response['--msg'] = @$response['--msg'] ."\n".$result->getMessage();
                                        $success = false;
                                }
                                
                                
                                if ( $success ){
                                        
                                        if (@$query['-response'] == 'json' ){
                                                //header('Content-type: text/json; charset="'.$app->_conf['oe'].'"');
                                                $rvals = $currentRecord->strvals();
                                                $rvals['__title__'] = $currentRecord->getTitle();
                                                $rvals['__id__'] = $currentRecord->getId();
                                                echo json_encode(array('response_code'=>200, 'record_data'=> $rvals, 'response_message'=>df_translate('Record Successfully Saved', 'Record Successfully Saved')));
                                                return;
                                        }
                                        
                                        import('Dataface/Utilities.php');
                                        Dataface_Utilities::fireEvent('after_action_edit', array('record'=>$form->_record));
                                        /*
                                         *
                                         * The original query string will have the -new flag set.  We need to remove this 
                                         * flag so that we don't redirect the user to create another new record.
                                         *
                                         */
                                        $vals = $form->exportValues();
                                        $vals['-query'] = preg_replace('/[&\?]-new=[^&]+/i', '', $vals['-query']);
                                        
                                        $_SESSION['--last_modified_record_url'] = $form->_record->getURL();
                                        $_SESSION['--last_modified_record_title'] = $form->_record->getTitle();
                                        
                                        $msg = implode("\n", $app->getMessages());
                                        //$msg =@$response['--msg'];
                                        $msg = urlencode(
                                                Dataface_LanguageTool::translate(
                                                        /* i18n id */
                                                        'Record successfully saved',
                                                        /* Default success message */
                                                        "Record successfully saved.<br>"
                                                ).$msg
                                        );
                                        
                                        if ( preg_match('/[&\?]-action=edit&/', $vals['-query']) and !$form->_record->checkPermission('edit') ){
                                                $vals['-query'] = preg_replace('/([&\?])-action=edit&/', '$1-action=view&', $vals['-query']);
                                        } else if ( preg_match('/[&\?]-action=edit$/', $vals['-query']) and !$form->_record->checkPermission('edit') ){
                                                $vals['-query'] = preg_replace('/([&\?])-action=edit$/', '$1-action=view', $vals['-query']);
                                        }
                                        
                                        $link = $_SERVER['HOST_URI'].DATAFACE_SITE_HREF.'?'.$vals['-query'].'&--msg='.$msg;
                                        
                                        
                                        /*
                                         *
                                         * Redirect the user to the appropriate record.
                                         *
                                         */
                                        $app->redirect("$link");
                                }
                        }
                        
                        ob_start();
                        $form->display();
                        $out = ob_get_contents();
                        ob_end_clean();
                        
                        if ( count($form->_errors) > 0 ){
                                $app->clearMessages();
                                $app->addError(PEAR::raiseError("Some errors occurred while processing this form: <ul><li>".implode('</li><li>', $form->_errors)."</li></ul>"));
                        }
                        $context = array('form'=>$out);
                        
                        
                        // Now let's add the tabs to the context
                        $context['tabs'] = $formTool->createHTMLTabs($currentRecord, $form, @$query['--tab']);
                        
                                 
                } else {
                        // no records were found
                        $context = array('form'=>'');
                        
                        if ( isset($_SESSION['--last_modified_record_url']) ){
                                $lastModifiedURL = $_SESSION['--last_modified_record_url'];
                                $lastModifiedTitle = $_SESSION['--last_modified_record_title'];
                                unset($_SESSION['--last_modified_record_title']);
                                unset($_SESSION['--last_modified_record_url']);
                                $app->addMessage(
                                        df_translate(
                                                'Return to last modified record',
                                                'No records matched your request.  Click <a href="'.$lastModifiedURL.'">here</a> to return to <em>'.htmlspecialchars($lastModifiedTitle).'</em>.',
                                                array('lastModifiedURL'=>$lastModifiedURL,
                                                         'lastModifiedTitle'=>$lastModifiedTitle
                                                        )
                                                )
                                        );
                        } else {
                                $app->addMessage(
                                        Dataface_LanguageTool::translate(
                                                'No records matched request',
                                                'No records matched your request'
                                                )
                                        );
                        }
                        
                        $query['-template'] = 'Dataface_Main_Template.html';
                }
                
                
                if ( isset($query['-template']) ) $template = $query['-template'];
                else if ( isset( $params['action']['template']) ) $template = $params['action']['template'];
                else $template = 'Dataface_Edit_Record.html';
                

                df_display($context, $template, true);
                
        }
        
}
?>