/**
  * check if the new slot is send to all at once, if yes at processes
  */
 public function checkNewSlot() {
     if($this->station->newSlotSendToAllReceiver == 1) {
         $station = WorkflowSlotUserTable::instance()->getUserBySlotId($this->station->newWorkflowSlotUser->getWorkflowslotId())->toArray();
         foreach($station as $item) {
             WorkflowProcessUserTable::instance()->deleteWorkflowProcessUserByWorkfloSlotUserId($item['id']);
         }
         WorkflowProcessTable::instance()->deleteWorkflowProcessByWorkflowSlotId($this->station->newWorkflowSlotUser->getWorkflowslotId());
         foreach($station as $item) {
              $wfp = new WorkflowProcess();
              $wfp->setWorkflowtemplateId($this->station->workflowtemplate_id);
              $wfp->setWorkflowversionId($this->station->version_id);
              $wfp->setWorkflowslotId($this->station->newWorkflowSlotUser->getWorkflowslotId());
              $wfp->save();
              $wfoId = $wfp->getId();
              $wfpu = new WorkflowProcessUser();
              $wfpu->setWorkflowprocessId($wfoId);
              $wfpu->setWorkflowslotuserId($item['id']);
              $wfpu->setUserId($item['user_id']);
              $wfpu->setInprogresssince(time());
              $wfpu->setDecissionstate('WAITING');
              $wfpu->setResendet(0);
              $wfpu->save();
              $mail = new PrepareStationEmail($this->station->version_id, $this->station->workflowtemplate_id, $item['user_id'], $this->station->context, $this->station->serverUrl);
         }
     }
 }
 /**
  *
  * Create a new process entry in WorkflowProcess table.
  * This enty can contain several child elemnts, if a useragent is set for the entry
  *
  * @param int $workflowtemplate_id, id of the workflowtemplate
  * @param int $workflowversion_id, id of the active workflowversion
  * @param int $workflowslot_id, id of the workflowslot
  * @return int $wfProcessId, id of the process, needed to add child elements
  */
 public function addProcess($workflowtemplate_id, $workflowversion_id, $workflowslot_id) {
     $wfProcess = new WorkflowProcess();
     $wfProcess->setWorkflowtemplateId($workflowtemplate_id);
     $wfProcess->setWorkflowversionId($workflowversion_id);
     $wfProcess->setWorkflowslotId($workflowslot_id);
     $wfProcess->save();
     $wfProcessId = $wfProcess->getId();
     return $wfProcessId;
 }
    /**
     *
     * This function writes the structure of workflowprocess and workflowprocessusers of an old version and
     * replaces this structre with the id's of the new version and its slots, and users
     *
     * @param array $lastStationData, data of the old workflow with its processes and processusers
     * @param array $newData, contains the id's of the new users and slots
     * @param <type> $version_id
     * @param <type> $workflow_id
     */
    public function restartAtLastStation(array $lastStationData, array $newData, $version_id, $workflow_id) {
        for($a = 0;$a<count($lastStationData);$a++) {
            $lastSlots = $lastStationData[$a];
            $newSlots = $newData[$a];

            if($lastSlots['userprocess'] != '') {
                for($b=0;$b<count($lastSlots['userprocess']);$b++) {
                    $lastProcess = $lastSlots['userprocess'][$b];
                    if(isset($lastProcess['process']) == true) {
                        $wfProcess = new WorkflowProcess(); // write the process
                        $wfProcess->setWorkflowtemplateId($workflow_id); // wf id
                        $wfProcess->setWorkflowversionId($version_id); // new id of the worklflow
                        $wfProcess->setWorkflowslotId($newSlots['slot_id']); //the id of the new slot is used
                        $wfProcess->save();
                        $wfprocessId = $wfProcess->getId();
                        $newProcessUser = $newSlots['slotuser_id'][$b];
                        $processCounter = 0;

                        // write processes of the user
                        for($c=0;$c<count($lastProcess['process']);$c++){
                            $lastProcessUser = $lastProcess['process'][$c];
                            $user_id = $lastProcessUser['user_id'];
                            $wfsUid = $newProcessUser['id'];

                            // create the new states of the
                            if($lastProcessUser['decissionstate'] == 'STOPPEDBYADMIN' OR $lastProcessUser['decissionstate'] == 'STOPPEDBYUSER') {
                                $setDecission = 'WAITING';
                            }
                            else if ($lastProcessUser['decissionstate'] == 'WAITING') {
                                $setDecission = 'WAITING';
                            }
                            else if ($lastProcessUser['decissionstate'] == 'SKIPPED') {
                                $setDecission = 'SKIPPED';
                            }
                            else if ($lastProcessUser['decissionstate'] == 'USERAGENTSET') {
                                $setDecission = 'USERAGENTSET';
                            }
                            else if ($lastProcessUser['decissionstate'] == 'DONE') {
                                $setDecission = 'DONE';
                            }
                            else if ($lastProcessUser['decissionstate'] == 'ARCHIVED') {
                                $setDecission = 'ARCHIVED';
                            }
                            else {
                                $setDecission = 'SKIPPED';
                            }
                            $wfProcessUser = new WorkflowProcessUser();
                            $wfProcessUser->setWorkflowprocessId($wfprocessId);
                            $wfProcessUser->setWorkflowslotuserId($wfsUid);
                            $wfProcessUser->setUserId($user_id);
                            $wfProcessUser->setInprogresssince(time());
                            $wfProcessUser->setDecissionstate($setDecission);
                            $wfProcessUser->setDateofdecission(time());
                            $wfProcessUser->setResendet(0);
                            $wfProcessUser->setIsuseragentof($lastProcessUser['isuseragentof']);
                            $wfProcessUser->save();

                            if($setDecission == 'WAITING') {
                                $mail = new PrepareStationEmail($version_id, $workflow_id, $user_id, $this->context, $this->serverUrl);
                            }

                        }
                    }
                }
            }
        }
    }
    /**
     * the Action restarts the workflow
     * @param sfWebRequest $request
     * @return <type>
     */
    public function executeRestartWorkflow(sfWebRequest $request) {
        sfLoader::loadHelpers('Url');
        $context = sfContext::getInstance();
        $context->getConfiguration()->loadHelpers('Partial', 'I18N', 'Url', 'Date', 'CalculateDate', 'ColorBuilder', 'Icon', 'EndAction');

        
        $createWorkObj = new PrepareWorkflowData();
        $startDate = array();

        $version_id = $request->getParameter('versionid');
        $newValue = $request->getParameter('restartWorkflowFirstTab_useoldvalues',0); // set flag if values form previous version will be used or from the default value of the fields
        $endreason = $createWorkObj->createEndreason($request->getPostParameter('restartWorkflowFirstTabSettings', array())); // set additional settings
        $startDate = $createWorkObj->createStartDate('', ''); // startdate is always at the moment
        $content = $createWorkObj->createRestartContenttype($request->getPostParameters());// ste contenttype of the additional text

        $workflowtemplate_id = WorkflowVersionTable::instance()->getWorkflowVersionById($version_id)->toArray(); // load the current workflowversion


        WorkflowTemplateTable::instance()->updateEndaction($workflowtemplate_id[0]['id'],$endreason); // update the endaction/additionalsettings


        $currentVersion = WorkflowVersionTable::instance()->getLastVersionById($workflowtemplate_id[0]['workflowtemplate_id'])->toArray(); // load the last workflow
        $slots = WorkflowSlotTable::instance()->getSlotByVersionId($version_id); // get all slots for the current workflow


        WorkflowVersionTable::instance()->setVersionInactive($version_id); // set the current version inactive
        WorkflowTemplateTable::instance()->restartWorkflow($workflowtemplate_id[0]['workflowtemplate_id']); // remove stopflag from template

        
        $wfRestart = new RestartWorkflow();
        // set flag if workflow uses old values or not
        $wfRestart->setNewValue($newValue);
        
        //load the data for fields. they contain old values or the default field values. the data array contains slots and its fields, values and users of the last version
        $data = $wfRestart->buildSaveData($slots);

        // create a new instance of the workflow
        $wfVersion = new WorkflowVersion();
        $wfVersion->setWorkflowtemplateId($workflowtemplate_id[0]['workflowtemplate_id']);
        $wfVersion->setActiveversion(1);
        $wfVersion->setContent($content['content']);
        $wfVersion->setStartworkflowAt($startDate['startworkflowat']);
        $wfVersion->setContenttype($content['contenttype']);
        $wfVersion->setWorkflowisstarted($startDate['workflowisstarted']);
        $wfVersion->setVersion($currentVersion[0]['version']+1);
        $wfVersion->save();
        $newVersionId = $wfVersion->getId();

        /*
        * to transfer the last version of the workflow into a new one, it is needed to copy
        * the old version and set new relations (ids). $slotCounter stores the id's of the
        * new created slots, user and userproeccess, to replace the old values with the new ones.
        */
        $dataStore = array();
        $slotCounter = 0;

        foreach($data as $slot) {

            $singleSlot = new WorkflowSlot();
            $singleSlot->setWorkflowversionId($newVersionId);
            $singleSlot->setSlotId($slot['slot_id']);
            $singleSlot->setPosition($slot['position']);
            $singleSlot->save();

            $slotId = $singleSlot->getId();
            // ids of created slots
            $dataStore[$slotCounter]['slot_id'] = $slotId;

            $fields = $slot['fields']; // the fields of the slot
            $users = $slot['users']; // the users of the slot

            // create the fields for the slot and set the value
            foreach($fields as $field) {
                $newField = new WorkflowSlotField();
                $newField->setWorkflowslotId($slotId);
                $newField->setFieldId($field['field_id']);
                $newField->setPosition($field['position']);
                $newField->save();
                $fieldId = $newField->getId();
                switch($field['type']) {
                    case 'TEXTFIELD':
                        $newField = new WorkflowSlotFieldTextfield();
                        $newField->setWorkflowslotfieldId($fieldId);
                        $newField->setValue($field['items'][0]['value']);
                        $newField->save();
                        break;
                    case 'CHECKBOX':
                        $newField = new WorkflowSlotFieldCheckbox();
                        $newField->setWorkflowslotfieldId($fieldId);
                        $newField->setValue($field['items'][0]['value']);
                        $newField->save();
                        break;
                    case 'NUMBER':
                        $newField = new WorkflowSlotFieldNumber();
                        $newField->setWorkflowslotfieldId($fieldId);
                        $newField->setValue($field['items'][0]['value']);
                        $newField->save();
                        break;
                    case 'DATE':
                        $newField = new WorkflowSlotFieldDate();
                        $newField->setWorkflowslotfieldId($fieldId);
                        $newField->setValue($field['items'][0]['value']);
                        $newField->save();
                        break;
                    case 'TEXTAREA':
                        $newField = new WorkflowSlotFieldTextarea();
                        $newField->setWorkflowslotfieldId($fieldId);
                        $newField->setValue($field['items'][0]['value']);
                        $newField->save();
                        break;
                    case 'RADIOGROUP':
                        $items = $field['items'];
                        foreach($items as $item) {
                            $newField = new WorkflowSlotFieldRadiogroup();
                            $newField->setWorkflowslotfieldId($fieldId);
                            $newField->setFieldradiogroupId($item['fieldradiogroup_id']);
                            $newField->setValue($item['value']);
                            $newField->setPosition($item['position']);
                            $newField->save();
                        }
                        break;
                    case 'CHECKBOXGROUP':
                        $items = $field['items'];
                        foreach($items as $item) {
                            $newField = new WorkflowSlotFieldCheckboxgroup();
                            $newField->setWorkflowslotfieldId($fieldId);
                            $newField->setFieldcheckboxgroupId($item['fieldradiogroup_id']);
                            $newField->setValue($item['value']);
                            $newField->setPosition($item['position']);
                            $newField->save();
                        }
                        break;
                    case 'COMBOBOX':
                        $items = $field['items'];
                        foreach($items as $item) {
                            $newField = new WorkflowSlotFieldCombobox();
                            $newField->setWorkflowslotfieldId($fieldId);
                            $newField->setFieldcomboboxId($item['fieldradiogroup_id']);
                            $newField->setValue($item['value']);
                            $newField->setPosition($item['position']);
                            $newField->save();
                        }
                        break;
                    case 'FILE':
                        $moveFile = new FileUpload();
                        $moveFile->moveFile($field['items'][0], $newVersionId,$workflowtemplate_id[0]['workflowtemplate_id'], $request->getParameter('versionid'));
                        $newField = new WorkflowSlotFieldFile();
                        $newField->setWorkflowslotfieldId($fieldId);
                        $newField->setFilename($field['items'][0]['filename']);
                        $newField->setHashname($field['items'][0]['hashname']);
                        $newField->save();
                        break;
                    
                }
            }

            // save the users for a slot
            $userCounter = 0;
            foreach($users as $user) {
                $wfSlotUser = new WorkflowSlotUser();
                $wfSlotUser->setWorkflowslotId($slotId);
                $wfSlotUser->setPosition($user['position']);
                $wfSlotUser->setUserId($user['user_id']);
                $wfSlotUser->save();
                // store the new id of the user and its user_id
                $dataStore[$slotCounter]['slotuser_id'][$userCounter]['id'] = $wfSlotUser->getId();
                $dataStore[$slotCounter]['slotuser_id'][$userCounter++]['user_id'] = $user['user_id'];
            }
            $slotCounter++;

        }

         
        /**
         *  save files from file grid in overview.
         *  files are moved forom ext
         *  $keys[0]['uploadfile']->file1
         *  $keys[1]['uploadfile']->file2
         *  it is also necessary to use $_FILES instead of $request->getFiles()
         */
        $files = $_FILES;
        $keys = array();
        $keys = array_keys($files);

        for($a=0;$a<count($keys);$a++) {
	$key = $keys[$a];
            if(substr_count($key, 'uploadfile') == 1) {
                $fileUpload = new FileUpload();
                $fileUpload->uploadFile($files[$key],$newVersionId,$workflowtemplate_id[0]['workflowtemplate_id']);
            }
        }
        $workflowTemplate = WorkflowTemplateTable::instance()->getWorkflowTemplateByVersionId($version_id)->toArray();

        
        $sendToAllSlotsAtOnce = MailinglistVersionTable::instance()->getActiveVersionById($workflowTemplate[0]['mailinglisttemplateversion_id'])->toArray();
        if($request->getPostParameter('restartWorkflowFirstTab_startpoint') == 'BEGINNING'){ // workflow starts from beginning
            // check if mailinglist is send to all slots at once, no workflowprocessuser data is needed to be loaded
            if($sendToAllSlotsAtOnce[0]['sendtoallslotsatonce'] == 1) { // create all slots
                $calc = new CreateWorkflow($newVersionId);
                $calc->setServerUrl(str_replace('/layout', '', url_for('layout/index',true)));
                $calc->setContext($context);
                $calc->addAllSlots();
            }
            else { // create a single slot
                $calc = new CreateWorkflow($newVersionId);
                $calc->setServerUrl(str_replace('/layout', '', url_for('layout/index',true)));
                $calc->setContext($context);
                $calc->addSingleSlot();
            }
        }
        else if ($request->getPostParameter('restartWorkflowFirstTab_startpoint') == 'LASTSTATION') { // workflow is send to last station
            $wfRestart = new RestartWorkflow();
            $wfRestart->setContext($context);
            $wfRestart->setServerUrl(str_replace('/layout', '', url_for('layout/index',true)));
            // load the workflowprocessuser / workflowprocess data of the old version
            $lastStationdata = $wfRestart->getRestartData($version_id);
            // write the oldversions workflowprocessuser/workflowprocess and set the new id's from $dataStore array
            $wfRestart->restartAtLastStation($lastStationdata, $dataStore, $newVersionId, $workflowtemplate_id[0]['workflowtemplate_id']);
        }
        else { // workflow will start at specific station
            $slotOrder = array();
            $slotOrder = explode('__', $request->getPostParameter('restartWorkflowFirstTab_startpointid'));
            $slotPosition = $slotOrder[1]; // Slot Position worklfow must start
            $userPosition = $slotOrder[3]; // position of the user in the slot. e.g. Slot 3 and User 2
            $currentUserSlotId = $dataStore[0]['slotuser_id'][0]['id']; // get Id of the first WorkflowSlot of the restarted Workflow
            $newUserSlotId = $dataStore[$slotPosition-1]['slotuser_id'][$userPosition-1]['id']; // get Id of the first WorkflowSlotUser of the restarted Workflow
            $direction = 'UP'; // direction is UP!

            // write first Process
            $wfProcess = new WorkflowProcess();
            $wfProcess->setWorkflowtemplateId($workflowtemplate_id[0]['workflowtemplate_id']);
            $wfProcess->setWorkflowversionId($newVersionId);
            $wfProcess->setWorkflowslotId($dataStore[0]['slot_id']);
            $wfProcess->save();
            $wfProcessId = $wfProcess->getId();

            // write first user
            $wfProcessUser = new WorkflowProcessUser();
            $wfProcessUser->setWorkflowprocessId($wfProcessId);
            $wfProcessUser->setWorkflowslotuserId($dataStore[0]['slotuser_id'][0]['id']);
            $wfProcessUser->setUserId($dataStore[0]['slotuser_id'][0]['user_id']);
            $wfProcessUser->setInprogresssince(time());
            $wfProcessUser->setDecissionstate('WAITING');
            $wfProcessUser->setDateofdecission(time());
            $wfProcessUser->setResendet(0);
            $wfProcessUser->save();
            // use Set Nextstation with direction UP from slot 1 user 1 to defined user e.g. slot 3 and user 2
            $calc = new SetStation($newVersionId, $newUserSlotId, $currentUserSlotId, $direction, $context, str_replace('/layout', '', url_for('layout/index',true)));

        }
        /**
         * set the response of the action.
         * it is needed to use this response when using fileupload in extjs with symfony.
         * extjs is uploading files using iframe. this iframe needs text/html as response
         */
        $this->getResponse()->setHttpHeader('Content-Type','text/html; charset=utf-8');
        $json = array('success' => true);
        $string = '<textarea>'.json_encode($json).'</textarea>';
        $this->renderText($string);
        
        return sfView::NONE;
    }
    /**
     * Calculate the next stations and set them to inactive
     *
     * @param int $workflowslot_id, id of the slot
     * @param int $position, position
     * @return <type>
     */
    public function calculateStation($workflowslot_id, $position) {
        $nextUser = $this->getNextUser($workflowslot_id, $position);
         if(!empty($nextUser)) {
             if($nextUser[0]['id'] != $this->station->newWorkflowSlotUser_id) {
                 $wfp = new WorkflowProcess();
                 $wfp->setWorkflowtemplateId($this->station->workflowtemplate_id);
                 $wfp->setWorkflowversionId($this->station->version_id);
                 $wfp->setWorkflowslotId($nextUser[0]['workflowslot_id']);
                 $wfp->save();
                 $wfoId = $wfp->getId();

                 $wfpu = new WorkflowProcessUser();
                 $wfpu->setWorkflowprocessId($wfoId);
                 $wfpu->setWorkflowslotuserId($nextUser[0]['id']);
                 $wfpu->setUserId($nextUser[0]['user_id']);
                 $wfpu->setInprogresssince(time());
                 $wfpu->setDecissionstate('SKIPPED');
                 $wfpu->setResendet(0);
                 $wfpu->save();
                 $this->calculateStation($nextUser[0]['workflowslot_id'], $nextUser[0]['position']+1);
             }
             else {
                 $wfp = new WorkflowProcess();
                 $wfp->setWorkflowtemplateId($this->station->workflowtemplate_id);
                 $wfp->setWorkflowversionId($this->station->version_id);
                 $wfp->setWorkflowslotId($nextUser[0]['workflowslot_id']);
                 $wfp->save();
                 $wfoId = $wfp->getId();

                 $wfpu = new WorkflowProcessUser();
                 $wfpu->setWorkflowprocessId($wfoId);
                 $wfpu->setWorkflowslotuserId($nextUser[0]['id']);
                 $wfpu->setUserId($nextUser[0]['user_id']);
                 $wfpu->setInprogresssince(time());
                 $wfpu->setDecissionstate('WAITING');
                 $wfpu->setResendet(0);
                 $wfpu->save();
                 $mail = new PrepareStationEmail($this->station->version_id, $this->station->workflowtemplate_id, $nextUser[0]['user_id'], $this->station->context, $this->station->serverUrl);
                 return true;
             }
         }
         else {
            $this->calculateSlot($workflowslot_id);
         }
    }