/**
  * Returns an array of all blog entries.
  * 
  * @return mixed
  * Returns an array of all blog entries, or null if there are no
  * blog entries.
  */
 public function getAllBlogEntries()
 {
     $blogEntries = new Datasource_Cms_Connect_BlogEntries();
     return $blogEntries->getAll();
 }
 /**
  * Responsible for validating and either saving or rejecting new and modified Connect
  * blog entries.
  */
 protected function _saveBlogEntry()
 {
     //First perform the image upload validation.
     $params = Zend_Registry::get('params');
     $upload = new Zend_File_Transfer_Adapter_Http();
     $upload->setDestination($params->cms->imageUploadPath);
     $upload->addValidator('Extension', false, $params->cms->imageAllowedTypes);
     $upload->addValidator('Count', false, $params->cms->imageNumberAllowed);
     $upload->addValidator('Size', false, $params->cms->imageMaxUploadSize);
     /*
     $upload->addValidator('ImageSize', false, array(
         'minwidth' => $params->cms->imageMinWidth,
         'maxwidth' => $params->cms->imageMaxWidth,
         'minheight' => $params->cms->imageMinHeight,
         'maxheight' => $params->cms->imageMaxHeight
     ));
     */
     //Call isUploaded(), which will return true if the user has uploaded an image.
     if ($upload->isUploaded()) {
         if ($upload->receive()) {
             //The file has been uploaded succesfully. Make a note of its uploaded location
             //so that we can write this to the database.
             $this->view->uploadSuccess = true;
             $imageName = $upload->getFileName(null, false);
         } else {
             //Communicate image upload failure
             return false;
         }
     }
     //Validate the rest of the inputs.
     $requiredText = new Zend_Validate();
     $requiredText->addValidator(new Zend_Validate_NotEmpty());
     $validators = array('id' => array('allowEmpty' => true), 'title' => $requiredText, 'summary' => $requiredText, 'article' => $requiredText, 'status' => $requiredText, 'imageName' => array('allowEmpty' => true), 'tagString' => array('allowEmpty' => true));
     $input = new Zend_Filter_Input(null, $validators, $_POST);
     if ($input->isValid()) {
         //Determine if we are using the newly uploaded image (if any), or if we are
         //preserving a previously uploaded iimage (if any).
         $imageNameToSave = null;
         if (!empty($imageName)) {
             //Newly uploaded
             $imageNameToSave = $imageName;
         } else {
             if (!empty($input->imageName)) {
                 //Previously uploaded
                 $imageNameToSave = $input->imageName;
             }
         }
         //Prepare the tags.
         if (empty($input->tagString)) {
             $blogEntryTags = null;
         } else {
             $blogEntryTags = explode(',', $input->tagString);
             //Ensure no 'empty string' tags are added to the datasource.
             $cleanedTags = array();
             foreach ($blogEntryTags as $currentTag) {
                 if (empty($currentTag)) {
                     continue;
                 }
                 if (preg_match("/^\\s+\$/", $currentTag)) {
                     continue;
                 }
                 $cleanedTags[] = trim($currentTag);
             }
             $blogEntryTags = $cleanedTags;
         }
         //Now save to the database
         $blogEntries = new Datasource_Cms_Connect_BlogEntries();
         if (!$input->id) {
             // This is a new user message so we need to create a new ID
             $blogEntryID = $blogEntries->addNew(new Zend_Date(), $input->title, $input->summary, $input->article, $input->status, $imageNameToSave, $blogEntryTags);
         } else {
             // This is an existing article so we can just update the data
             $blogEntryID = $input->id;
             $blogEntries->saveChanges($input->id, new Zend_Date(), $input->title, $input->summary, $input->article, $input->status, $imageNameToSave, $blogEntryTags);
         }
         $returnVal = true;
     } else {
         // Invalid data in form
         $returnVal = false;
     }
     return $returnVal;
 }