<?php
/**
 * @package		Library
 *
 *
 */
namespace Modules\developer\std_mod;




class Area{ //data structure. Represents any data module
    var $elements;  //data elements
    var $childrenAreas; //next level of data tree
    var $childArea; //for compatibility with old script


    var $dbTable; //db table name
    var $dbPrimaryKey;  //key of current table
    var $dbReference; //reference to some other table
    var $parentId; //reference value. Eg. - if set to 3, table will show only the racords, that have "dbReference" equal to 3.
    var $title;
    var $whereCondition;  //extra condition to sql where part
    var $rowsPerPage;

    var $allowInsert;
    var $allowUpdate;
    var $allowDelete;

    var $searchable;
    var $visible; //set to false if you wish to hide last level of tree. Might be used when you need to delete related elements on parent deletion.

    /*sort - ability to set order values in admin to specified field. */
    var $sortable;
    var $sortType;  //numbers - manually insert row number, pointers - change order with arrows
    var $sortField; //field, where user can change the order of items on the site
    var $newRecordPosition; //available values: null, top, bottom. Specifies the position where new records should be placed upon other records.

    /*order - order of records set by default in admin area*/
    var $orderBy; //default order field
    var $orderDirection; //default order direction (eg. asc desc);

    var $currentPage;

    var $nameElement; //main element by which records can be named in admin area. For example on left elements tree.




    function __construct($variables = array()){
        $this->elements = array();

        $this->rowsPerPage = 40;
        $this->currentPage = 0;
        $this->sortType = 'pointers';
        $this->orderDirection = 'asc';
        $this->newRecordPosition = "bottom";
        $this->visible = true;
         
        $this->allowInsert = true;
        $this->allowUpdate = true;
        $this->allowDelete = true;

        if(isset($variables['sortable']) && $variables['sortable'] && !isset($variables['sortField'])){
            $backtrace = debug_backtrace();
            if(isset($backtrace[0]['file']) && $backtrace[0]['line'])
            trigger_error('sortField parameter is required if area is sortable. (Error source: '.$backtrace[0]['file'].' line: '.$backtrace[0]['line'].' ) ');
            else
            trigger_error('sortField parameter is required if area is sortable.');
            exit;
        }

        foreach ($variables as $name => $value) {
            switch ($name){
                case 'dbTable':
                    $this->dbTable = $value;
                    break;
                case 'dbPrimaryKey':
                    $this->dbPrimaryKey = $value;
                    break;
                case 'dbReference':
                    $this->dbReference = $value;
                    break;
                case 'parentId':
                    $this->parentId = $value;
                    break;
                case 'title':
                    $this->title = $value;
                    break;
                case 'whereCondition':
                    $this->whereCondition = $value;
                    break;
                case 'rowsPerPage':
                    $this->rowsPerPage = $value;
                    break;
                case 'allowInsert':
                    $this->allowInsert = $value;
                    break;
                case 'allowUpdate':
                    $this->allowUpdate = $value;
                    break;
                case 'allowDelete':
                    $this->allowDelete = $value;
                    break;
                case 'searchable':
                    $this->searchable = $value;
                    break;
                case 'visible':
                    $this->visible = $value;
                    break;
                case 'sortable':
                    $this->sortable = $value;
                    break;
                case 'sortType':
                    $this->sortType = $value;
                    break;
                case 'sortField':
                    $this->sortField = $value;
                    if(!isset($variables['orderBy']))
                    $this->orderBy = $value;
                    break;
                case 'newRecordPosition':
                    $this->newRecordPosition = $value;
                    break;
                case 'orderBy':
                    $this->orderBy = $value;
                    break;
                case 'orderDirection':
                    $this->orderDirection = $value;
                    break;
            }
        }
    }

    function addElement($element){
        $this->elements[] = $element;
        if(isset($element->useInBreadcrumb) && $element->useInBreadcrumb){
            $this->nameElement = $element;
        }
    }

    function &getArea(){
        return $this->childArea;
    }

    function addArea($area){
        if(!isset($area->dbReference) || $area->dbReference == ''){
            $backtrace = debug_backtrace();
            if(isset($backtrace[0]['file']) && $backtrace[0]['line'])
            trigger_error('Child area should have dbReference parameter specified. (Error source: '.$backtrace[0]['file'].' line: '.$backtrace[0]['line'].' ) ');
            else
            trigger_error('Child area should have dbReference parameter specified.');
            exit;
        }
        $this->childrenAreas[] = $area;
        if(sizeof($this->childrenAreas) == 1) //for compatability with old script;
        $this->childArea = $area;
    }


    public function beforeInsert(){

    }

    public function afterInsert($recordId){

    }

    public function beforeUpdate($recordId){

    }

    public function afterUpdate($recordId){

    }

    public function beforeDelete($recordId){

    }

    public function afterDelete($recordId){

    }

    public function beforeSort(){

    }

    public function afterSort(){

    }

    public function allowDelete($recordId){
        return true;
    }


}



