class.ilBadge.php

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<?php
/* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */
 
class ilBadge
{
        protected $id; // [int]
        protected $parent_id; // [int]
        protected $type_id; // [string]
        protected $active; // [bool]
        protected $title; // [string]
        protected $desc; // [string]
        protected $image; // [string]
        protected $valid; // [string]
        protected $config; // [array]
        protected $criteria; // [string]
        
        public function __construct($a_id = null)
        {
                if($a_id)
                {
                        $this->read($a_id);
                }
        }
        
        public static function getInstancesByParentId($a_parent_id, array $a_filter = null)
        {
                global $ilDB;
                
                $res = array();
                
                $sql = "SELECT * FROM badge_badge".
                        " WHERE parent_id = ".$ilDB->quote($a_parent_id);
                
                if($a_filter)
                {
                        if($a_filter["title"])
                        {
                                $sql .= " AND ".$ilDB->like("title", "text", "%".trim($a_filter["title"])."%");
                        }
                        if($a_filter["type"])
                        {
                                $sql .= " AND type_id = ".$ilDB->quote($a_filter["type"], "integer");
                        }
                }
                
                $set = $ilDB->query($sql.
                        " ORDER BY title");
                while($row = $ilDB->fetchAssoc($set))
                {
                        $obj = new self();
                        $obj->importDBRow($row);
                        $res[] = $obj;
                }
                                
                return $res;
        }
        
        public static function getInstancesByType($a_type_id)
        {
                global $ilDB;
                
                $res = array();
                
                $set = $ilDB->query("SELECT * FROM badge_badge".
                        " WHERE type_id = ".$ilDB->quote($a_type_id).
                        " ORDER BY title");
                while($row = $ilDB->fetchAssoc($set))
                {
                        $obj = new self();
                        $obj->importDBRow($row);
                        $res[] = $obj;
                }
                                
                return $res;
        }
        
        public function getTypeInstance()
        {
                if($this->getTypeId())
                {
                        include_once "./Services/Badge/classes/class.ilBadgeHandler.php";
                        $handler = ilBadgeHandler::getInstance();
                        return $handler->getTypeInstanceByUniqueId($this->getTypeId());         
                }
        }
        
        public function copy($a_new_parent_id)
        {
                global $lng;
                
                $this->setTitle($this->getTitle()." ".$lng->txt("copy_of_suffix"));
                $this->setParentId($a_new_parent_id);
                $this->setActive(false); 
        
                if($this->getId())
                {
                        $img = $this->getImagePath();   
                        
                        $this->setId(null);             
                        $this->create();
 
                        if($img)
                        {
                                // see uploadImage()                    
                                copy($img, $this->getImagePath());
                        }                       
                }               
        }
        
        public static function getObjectInstances(array $a_filter = null)
        {
                global $ilDB;
                
                $res = $raw = array();
                
                $where = "";
                
                if($a_filter["type"])
                {
                        $where .= " AND bb.type_id = ".$ilDB->quote($a_filter["type"], "text");
                }
                if($a_filter["title"])
                {
                        $where .= " AND ".$ilDB->like("bb.title", "text", "%".$a_filter["title"]."%");
                }
                if($a_filter["object"])
                {
                        $where .= " AND ".$ilDB->like("od.title", "text", "%".$a_filter["object"]."%");
                }
                
                $set = $ilDB->query("SELECT bb.*, od.title parent_title, od.type parent_type".
                        " FROM badge_badge bb".
                        " JOIN object_data od ON (bb.parent_id = od.obj_id)".
                        " WHERE od.type <> ".$ilDB->quote("bdga", "text").
                        $where);
                while($row = $ilDB->fetchAssoc($set))
                {
                        $raw[] = $row;
                }
                
                $set = $ilDB->query("SELECT bb.*, od.title parent_title, od.type parent_type".
                        " FROM badge_badge bb".
                        " JOIN object_data_del od ON (bb.parent_id = od.obj_id)".
                        " WHERE od.type <> ".$ilDB->quote("bdga", "text").
                        $where);
                while($row = $ilDB->fetchAssoc($set))
                {
                        $row["deleted"] = true;
                        $raw[] = $row;
                }
                
                foreach($raw as $row)
                {
                        // :TODO:
                        
                        $res[] = $row;
                }
                
                return $res;
        }
        
        
        //
        // setter/getter
        //
        
        protected function setId($a_id)
        {
                $this->id = (int)$a_id;
        }
        
        public function getId()
        {
                return $this->id;
        }
        
        public function setParentId($a_id)
        {
                $this->parent_id = (int)$a_id;
        }
        
        public function getParentId()
        {
                return $this->parent_id;
        }
        
        public function setTypeId($a_id)
        {
                $this->type_id = trim($a_id);
        }
        
        public function getTypeId()
        {
                return $this->type_id;
        }
        
        public function setActive($a_value)
        {
                $this->active = (bool)$a_value;
        }
        
        public function isActive()
        {
                return $this->active;
        }
        
        public function setTitle($a_value)
        {
                $this->title = trim($a_value);
        }
        
        public function getTitle()
        {
                return $this->title;
        }
        
        public function setDescription($a_value)
        {
                $this->desc = trim($a_value);
        }
        
        public function getDescription()
        {
                return $this->desc;
        }
        
        public function setCriteria($a_value)
        {
                $this->criteria = trim($a_value);
        }
        
        public function getCriteria()
        {
                return $this->criteria;
        }
        
        public function setValid($a_value)
        {
                $this->valid = trim($a_value);
        }
        
        public function getValid()
        {
                return $this->valid;
        }
        
        public function setConfiguration(array $a_value = null)
        {
                if(is_array($a_value) &&
                        !sizeof($a_value))
                {
                        $a_value = null;
                }
                $this->config = $a_value;
        }
        
        public function getConfiguration()
        {
                return $this->config;
        }
        
        protected function setImage($a_value)
        {
                $this->image = trim($a_value);
        }
        
        public function getImage()
        {
                return $this->image;
        }
 
        public function uploadImage(array $a_upload_meta)
        {               
                if($this->getId() &&
                        $a_upload_meta["tmp_name"])
                {
                        $this->setImage($a_upload_meta["name"]);                        
                        $path = $this->getImagePath();                  
 
                        if (ilUtil::moveUploadedFile($a_upload_meta["tmp_name"], $this->getImagePath(false), $path))
                        {
                                $this->update();                        
                        }
                }
        }
        
        public function importImage($a_name, $a_file)
        {
                if(file_exists($a_file))
                {
                        $this->setImage($a_name);                       
                        copy($a_file, $this->getImagePath()); // #18280
                        
                        $this->update();                
                }
        }
        
        public function getImagePath($a_full_path = true)
        {
                if($this->getId())
                {
                        $suffix = strtolower(array_pop(explode(".", $this->getImage())));
                        if ($a_full_path)
                        {
                                return $this->getFilePath($this->getId()) . "img" . $this->getId() . "." . $suffix;
                        }
                        else
                        {
                                return "img" . $this->getId() . "." . $suffix;
                        }
                }
        }
        
        protected function getFilePath($a_id, $a_subdir = null)
        {               
                include_once "Services/Badge/classes/class.ilFSStorageBadge.php";
                $storage = new ilFSStorageBadge($a_id);
                $storage->create();
                
                $path = $storage->getAbsolutePath()."/";
                
                if($a_subdir)
                {
                        $path .= $a_subdir."/";
                        
                        if(!is_dir($path))
                        {
                                mkdir($path);
                        }
                }
                                
                return $path;
        }
        
        
        //
        // crud
        //
        
        protected function read($a_id)
        {
                global $ilDB;
                
                $set = $ilDB->query("SELECT * FROM badge_badge".
                        " WHERE id = ".$ilDB->quote($a_id, "integer"));
                if($ilDB->numRows($set))
                {
                        $row = $ilDB->fetchAssoc($set);
                        $this->importDBRow($row);                       
                }               
        }
        
        protected function importDBRow(array $a_row)
        {
                $this->setId($a_row["id"]);
                $this->setParentId($a_row["parent_id"]);
                $this->setTypeId($a_row["type_id"]);
                $this->setActive($a_row["active"]);
                $this->setTitle($a_row["title"]);
                $this->setDescription($a_row["descr"]);
                $this->setCriteria($a_row["crit"]);
                $this->setImage($a_row["image"]);
                $this->setValid($a_row["valid"]);
                $this->setConfiguration($a_row["conf"]
                                ? unserialize($a_row["conf"])
                                : null);                                
        }
        
        public function create()
        {
                global $ilDB;
                
                if($this->getId())
                {
                        return $this->update();
                }
                
                $id = $ilDB->nextId("badge_badge");
                $this->setId($id);
                
                $fields = $this->getPropertiesForStorage();
                        
                $fields["id"] = array("integer", $id);                                          
                $fields["parent_id"] = array("integer", $this->getParentId());
                $fields["type_id"] = array("text", $this->getTypeId());
                
                $ilDB->insert("badge_badge", $fields);
        }
        
        public function update()
        {
                global $ilDB;
                
                if(!$this->getId())
                {
                        return $this->create();
                }
                
                $fields = $this->getPropertiesForStorage();
                
                $ilDB->update("badge_badge", $fields,
                        array("id"=>array("integer", $this->getId()))
                );
        }
        
        public function delete()
        {
                global $ilDB;
                
                if(!$this->getId())
                {
                        return;
                }
                
                if(file_exists($this->getImagePath()))
                {
                        unlink($this->getImagePath());
                }
                
                $this->deleteStaticFiles();
                
                include_once "Services/Badge/classes/class.ilBadgeAssignment.php";
                ilBadgeAssignment::deleteByBadgeId($this->getId());
                
                $ilDB->manipulate("DELETE FROM badge_badge".
                        " WHERE id = ".$ilDB->quote($this->getId(), "integer"));
        }
        
        protected function getPropertiesForStorage()
        {
                return array(
                        "active" => array("integer", $this->isActive()),
                        "title" => array("text", $this->getTitle()),
                        "descr" => array("text", $this->getDescription()),
                        "crit" => array("text", $this->getCriteria()),
                        "image" => array("text", $this->getImage()), 
                        "valid" => array("text", $this->getValid()), 
                        "conf" => array("text", $this->getConfiguration()
                                ? serialize($this->getConfiguration())
                                : null)
                );              
        }
        
        
        //
        // helper
        // 
        
        public function getParentMeta()
        {                                               
                $parent_type = ilObject::_lookupType($this->getParentId());
                if($parent_type)
                {                       
                        $parent_title = ilObject::_lookupTitle($this->getParentId());
                        $deleted = false;
                }
                else
                {
                        // already deleted?
                        include_once "Services/Object/classes/class.ilObjectDataDeletionLog.php";
                        $parent = ilObjectDataDeletionLog::get($this->getParentId());
                        if($parent["type"])
                        {
                                $parent_type = $parent["type"];
                                $parent_title = $parent["title"];
                        }
                        $deleted = true;
                }
                
                return array(
                        "id" => $this->getParentId(),
                        "type" => $parent_type,
                        "title" => $parent_title,
                        "deleted" => $deleted
                );
        }
        
        
        //
        // PUBLISHING
        // 
        
        protected function prepareJson($a_base_url, $a_img_suffix)
        {                                               
                $json = new stdClass();
                $json->{"@context"} = "https://w3id.org/openbadges/v1";
                $json->type = "BadgeClass";
                $json->id = $a_base_url."class.json";   
                $json->name = $this->getTitle();
                $json->description = $this->getDescription();   
                $json->image = $a_base_url."image.".$a_img_suffix;
                $json->criteria = $a_base_url."criteria.txt";           
                $json->issuer = ilBadgeHandler::getInstance()->getIssuerStaticUrl();    
                
                return $json;
        }
        
        public function getStaticUrl()
        {                                                               
                $path = ilBadgeHandler::getInstance()->getBadgePath($this);
                
                $base_url = ILIAS_HTTP_PATH.substr($path, 1);
                
                if(!file_exists($path."class.json"))
                {               
                        $img_suffix = array_pop(explode(".", $this->getImage()));
                        
                        $json = json_encode($this->prepareJson($base_url, $img_suffix));
                        file_put_contents($path."class.json", $json);
                        
                        // :TODO: scale?
                        copy($this->getImagePath(), $path."image.".$img_suffix);
                        
                        file_put_contents($path."criteria.txt", $this->getCriteria());
                }
                
                return $base_url."class.json";
        }
 
        public function deleteStaticFiles()
        {
                // remove instance files
                $path = ilBadgeHandler::getInstance()->getBadgePath($this);             
                if(is_dir($path))
                {
                        ilUtil::delDir($path);
                }               
        }
        
        public static function getExtendedTypeCaption(ilBadgeType $a_type)
        {
                global $lng;
                
                return $a_type->getCaption()." (".
                        ($a_type instanceof ilBadgeAuto
                                ? $lng->txt("badge_subtype_auto")
                                : $lng->txt("badge_subtype_manual")).")";
        }
}