PHP Attachment::fromId方法代码示例

 public static function create(User $user, $uploaded_filename, $name)
 {
     // Create a new row in the database for the image
     $query = Database::connection()->prepare('INSERT INTO attachment (size, name, created_by, created_at) VALUES (?, ?, ?, ?)');
     $query->bindValue(1, filesize($uploaded_filename), PDO::PARAM_INT);
     $query->bindValue(2, $name, PDO::PARAM_INT);
     $query->bindValue(3, $user->getUserId(), PDO::PARAM_INT);
     $query->bindValue(4, time(), PDO::PARAM_INT);
     if (!$query->execute()) {
         throw new Exception('Unable to create attachment.');
     }
     // Get the image that we just created
     $attachment = Attachment::fromId(Database::connection()->lastInsertId());
     if (is_uploaded_file($uploaded_filename)) {
         if (!move_uploaded_file($uploaded_filename, self::getStoragePath($attachment->getAttachmentId()))) {
             $attachment->delete();
             throw new Exception('Unable to move attachment into place.');
         }
     } else {
         if (!rename($uploaded_filename, self::getStoragePath($attachment->getAttachmentId()))) {
             $attachment->delete();
             throw new Exception('Unable to move attachment into place.');
         }
     }
     //$imagick = new Imagick();
     //$imagick->readimage(self::getStoragePath($image->getId()));
     //$imagick->setimagetype('png');
     //$imagick->writeimage();
     return $attachment;
 }

 function delete_attachment()
 {
     Auth::checkLoggedIn();
     $entry = Entry::fromId(Input::get('entryid'));
     $attachment = Attachment::fromId(Input::get('attachmentid'));
     // Make sure this user can edit the entry
     if (!$entry->canEdit(Auth::getUser())) {
         throw new Exception('You cannot edit this entry.');
     }
     // Make sure the attachment belongs to the entry
     $attachments = $entry->getAttachments();
     $found = false;
     foreach ($attachments as $curAttachment) {
         if ($curAttachment->getAttachmentId() == $attachment->getAttachmentId()) {
             $found = true;
             break;
         }
     }
     if (!$found) {
         throw new Exception('The requested attachment does not belong to the entry given.');
     }
     // Now delete the attachment
     $attachment->delete();
     // We have to manually sync since the attachment isn't part of the entry technically
     $entry->changed();
 }

 /**
  * Sets the avatar for this user given the attachment it is.
  * @param Attachment $attachment
  */
 public function setAvatar(Attachment $attachment)
 {
     // Make sure the attachment is an image
     if ($attachment->getAttachmentType() != Attachment::ATTACHMENT_TYPE_IMAGE) {
         throw new Exception('Avatars must be images.');
     }
     // Turn the image into a png
     $attachment->convertToPNG();
     // Turn the new attachment into a thubmnail
     $attachment->convertIntoThubmnail();
     // See if we need to delete an old one
     if ($this->hasAvatar()) {
         $oldAvatar = Attachment::fromId($this->getAvatarAttachmentId());
         $oldAvatar->delete();
     }
     // Update the database
     $query = Database::connection()->prepare('UPDATE user SET avatar_attachmentid = ? WHERE userid = ?');
     $query->bindValue(1, $attachment->getAttachmentId(), PDO::PARAM_INT);
     $query->bindValue(2, $this->getUserId(), PDO::PARAM_INT);
     $query->execute();
     // Update the local value
     $this->row['avatar_attachmentid'] = $attachment->getAttachmentId();
 }