class.ilDataCollectionStandardField.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once './Modules/DataCollection/classes/class.ilDataCollectionField.php';
include_once './Modules/DataCollection/classes/class.ilDataCollectionDatatype.php';

class ilDataCollectionStandardField extends ilDataCollectionField
{
        /*
         * doRead
         */
        public function doRead()
        {
                global $ilLog;
                $message = "Standard fields cannot be read from DB";
                ilUtil::sendFailure($message);
                $ilLog->write("[ilDataCollectionStandardField] ".$message);
        }
        
        /*
         * doCreate
         */
        public function doCreate()
        {
                global $ilLog;
                $message = "Standard fields cannot be written to DB";
                ilUtil::sendFailure($message);
                $ilLog->write("[ilDataCollectionStandardField] ".$message);
        }
        
        /*
         * doUpdate
         */
        public function doUpdate()
        {
                $this->updateVisibility();
                $this->updateFilterability();
        }
        
        /*
         * getLocked
         */
        public function getLocked()
        {
                return true;
        }
        
        /*
         * _getStandardFieldsAsArray
         */
        static function _getStandardFieldsAsArray()
        {
                $stdfields = array(
                        array("id"=>"id", "title" => "id", "Description" => "The internal ID", "datatype_id" => ilDataCollectionDatatype::INPUTFORMAT_NUMBER, "required" => true),
                        //array("id"=>"table_id", "title" => "Table id", "description" => "The internal ID of the table", "datatype_id" => ilDataCollectionDatatype::INPUTFORMAT_NUMBER, "required" => true),
                        array("id"=>"create_date", "title" => "Creation Date", "description" => "The date this record was created", "datatype_id" => ilDataCollectionDatatype::INPUTFORMAT_DATETIME, "required" => true),
                        array("id"=>"last_update", "title" => "Last Update", "description" => "The last time this record was updated", "datatype_id" => ilDataCollectionDatatype::INPUTFORMAT_DATETIME, "required" => true),
                        array("id"=>"owner", "title" => "Owner", "description" => "The owner of this record", "datatype_id" => ilDataCollectionDatatype::INPUTFORMAT_TEXT, "required" => true),
                        array("id"=>"last_edit_by", "title" => "Last edited by", "description" => "The user who did the last edit on this record", "datatype_id" => ilDataCollectionDatatype::INPUTFORMAT_TEXT, "required" => true)
                );
                return $stdfields;
        }
        
        /*
         * _getStandardFields
         */
        static function _getStandardFields($table_id)
        {
                $stdFields = array();
                foreach(self::_getStandardFieldsAsArray() as $array)
                {
                        $array["table_id"] = $table_id;
                        $array["datatype_id"] = self::_getDatatypeForId($array["id"]);
                        $field = new ilDataCollectionStandardField();
                        $field->buildFromDBRecord($array);
                        array_push($stdFields, $field);
                }
                return $stdFields;
        }

        /*
         * _isStandardField
         */
        static function _isStandardField($field_id)
        {
                $return = false;
                foreach(self::_getStandardFieldsAsArray() as $field)
                {
                        if($field["id"] == $field_id)
                        {
                                $return = true;
                        }
                }
                        
                return $return;
        }

        public static function _getDatatypeForId($id)
        {
                switch($id)
                {
                        case 'id':
                                return ilDataCollectionDatatype::INPUTFORMAT_NUMBER;
                        case 'owner';
                                return ilDataCollectionDatatype::INPUTFORMAT_TEXT;
                        case 'create_date':
                                return ilDataCollectionDatatype::INPUTFORMAT_DATETIME;
                        case 'last_edit_by':
                                return ilDataCollectionDatatype::INPUTFORMAT_TEXT;
                        case 'table_id':
                                return ilDataCollectionDatatype::INPUTFORMAT_NUMBER;
                        case 'last_update':
                                return ilDataCollectionDatatype::INPUTFORMAT_DATETIME;
                }
                return NULL;
        }
        
        /*
         * isStandardField
         */
        public function isStandardField()
        {
                return true;
        }
        
        /*
         * isUnique
         */
        public function isUnique()
        {
                return false;
        }
}

?>