crecord

class crecord extends crecord_NullObject {

    var $model;
    var $table;
    var $row;

    var $id;

    function crecord()
    {
        $this->model = NULL;
        $this->table = "";

        $this->_common_init();
    }

    function _common_init( $id = NULL )
    {
        $this->row = NULL;
        $this->id = $id;

        if( $id != NULL )
            $this->load($id);
    }

    function init( &$model , $table, $id = NULL)
    {
        $this->model = &$model;
        $this->table = $table;

        $this->_common_table();
        $this->load($id);
    }

    function equal($record)
    {
        foreach($record->row as $key => $value)
        {

            if( $this->getField($key) != $value )
                    return false;
        }
        return true;
    }


    function reuse($id = NULL)
    {
        $this->_common_init($id);
    }

    function loadlast( $key = null , $value = null)
    {
        $id = $this->model->select_max('id', $key, $value);
        $this->load($id);
    }


    function _common_table()
    {
        $this->model->init($this->table);
    }

    function load($id = NULL)
    {
         return $this->loadwithfield("id", $id);
    }

    function loadwithfield($field, $value)
    {
        $this->_common_table();
        $this->reuse();

        if( $field == NULL || $value == NULL )
            return;

        $row = $this->model->select_field_row($field,$value);

        return $this->_init_load_field($row);

    }

    function _init_load_field($row)
    {
        if( $row == NULL )
        {
            $this->id = NULL;
            return;
        }

        $this->id = $row->id;
        $this->setrow($row);

        return $this->row;
    }

    function load2($field ='id',$value=NULL)
    {
        return $this->loadwithfield($field, $value);

    }

    function is_update()
    {
        return $this->id != NULL;
    }

    function save()
    {
        if( $this->row == NULL )
            return;

        $this->_common_table();
        if( $this->id == NULL )
        {
           $this->id = $this->model->insert($this->row);
           return $this->id;
        }
        else
        {
           $this->model->update($this->id, $this->row);
           return $this->id;
        }

    }

    function delete($id = null)
    {
        $this->_common_table();


        if( $id != null )
            $this->load($id);

        if( $this->id == NULL )
            return;

        $this->model->delete($this->id);
        return $this->id;
    }

    function getField($field)
    {
        if( $field == "id" )
        {
            return $this->id;
        }

        switch( gettype($this->row) )
        {
            case "array":
                return $this->row[$field];

            case "object":
            {
                if( isset($this->row->$field) )
                    return $this->row->$field;
            }

            default:
                return;
        }

        if( is_object($this->row))
                return $this->row->$field;

        if( is_array($this->row))
                return $this->row[$field];
    }


    function setField($field, $value)
    {
        $type = gettype($this->row);
        switch( $type)
        {
            case "array":
                return $this->row[$field] = $value;
            case "object":
            default:
                return $this->row->$field = $value;
        }
    }

    function getrow()
    {
        $row = $this->row;
        if( $row != NULL )
            $row->id = $this->id;
        return $row;
    }

    function setrow($row)
    {
        $this->_tranArr2Obj ($row);
    }

    function _tranArr2Obj($array_row)
    {
        foreach($array_row as $key => $value )
        {
            if( $key == "id" )
                continue;
            $this->setField($key, $value);
        }
    }

    function create_owner()
    {
        return new crecord;
    }

    function isNull()
    {
        return "FALSE";
    }
    
}