Subversion-Projekte lars-tiefland.prado

<?php

class Sample2 extends TPage
{
        private $_data=null;

        protected function getData()
        {
                if($this->_data===null)
                        $this->loadData();
                return $this->_data;
        }

        protected function loadData()
        {
                // We use viewstate keep track of data.
                // In real applications, data should come from database using an SQL SELECT statement.
                // In the following tabular data, field 'id' is the primary key.
                // All update and delete operations should come with an 'id' value in order to go through.
                if(($this->_data=$this->getViewState('Data',null))===null)
                {
                        $this->_data=array(
                                array('id'=>'ITN001','name'=>'Motherboard','quantity'=>1,'price'=>100.00,'imported'=>true),
                                array('id'=>'ITN002','name'=>'CPU','quantity'=>1,'price'=>150.00,'imported'=>true),
                                array('id'=>'ITN003','name'=>'Harddrive','quantity'=>2,'price'=>80.00,'imported'=>false),
                                array('id'=>'ITN004','name'=>'Sound card','quantity'=>1,'price'=>40.00,'imported'=>false),
                                array('id'=>'ITN005','name'=>'Video card','quantity'=>1,'price'=>150.00,'imported'=>true),
                                array('id'=>'ITN006','name'=>'Keyboard','quantity'=>1,'price'=>20.00,'imported'=>true),
                                array('id'=>'ITN007','name'=>'Monitor','quantity'=>2,'price'=>300.00,'imported'=>false),
                        );
                        $this->saveData();
                }
        }

        protected function saveData()
        {
                $this->setViewState('Data',$this->_data);
        }

        protected function updateProduct($id,$name,$quantity,$price,$imported)
        {
                // In real applications, data should be saved to database using an SQL UPDATE statement
                if($this->_data===null)
                        $this->loadData();
                $updateRow=null;
                foreach($this->_data as $index=>$row)
                        if($row['id']===$id)
                                $updateRow=&$this->_data[$index];
                if($updateRow!==null)
                {
                        $updateRow['name']=$name;
                        $updateRow['quantity']=TPropertyValue::ensureInteger($quantity);
                        $updateRow['price']=TPropertyValue::ensureFloat($price);
                        $updateRow['imported']=TPropertyValue::ensureBoolean($imported);
                        $this->saveData();
                }
        }

        protected function deleteProduct($id)
        {
                // In real applications, data should be saved to database using an SQL DELETE statement
                if($this->_data===null)
                        $this->loadData();
                $deleteIndex=-1;
                foreach($this->_data as $index=>$row)
                        if($row['id']===$id)
                                $deleteIndex=$index;
                if($deleteIndex>=0)
                {
                        unset($this->_data[$deleteIndex]);
                        $this->saveData();
                }
        }

        public function onLoad($param)
        {
                parent::onLoad($param);
                if(!$this->IsPostBack)
                {
                        $this->DataList->DataSource=$this->Data;
                        $this->DataList->dataBind();
                }
        }

        public function editItem($sender,$param)
        {
                $this->DataList->SelectedItemIndex=-1;
                $this->DataList->EditItemIndex=$param->Item->ItemIndex;
                $this->DataList->DataSource=$this->Data;
                $this->DataList->dataBind();
        }

        public function cancelItem($sender,$param)
        {
                $this->DataList->SelectedItemIndex=-1;
                $this->DataList->EditItemIndex=-1;
                $this->DataList->DataSource=$this->Data;
                $this->DataList->dataBind();
        }

        public function updateItem($sender,$param)
        {
                $item=$param->Item;
                $this->updateProduct(
                        $this->DataList->DataKeys[$item->ItemIndex],
                        $item->ProductName->Text,
                        $item->ProductQuantity->Text,
                        $item->ProductPrice->Text,
                        $item->ProductImported->Checked);
                $this->DataList->EditItemIndex=-1;
                $this->DataList->DataSource=$this->Data;
                $this->DataList->dataBind();
        }

        public function deleteItem($sender,$param)
        {
                $this->deleteProduct($this->DataList->DataKeys[$param->Item->ItemIndex]);
                $this->DataList->SelectedItemIndex=-1;
                $this->DataList->EditItemIndex=-1;
                $this->DataList->DataSource=$this->Data;
                $this->DataList->dataBind();
        }

        public function selectItem($sender,$param)
        {
                $this->DataList->EditItemIndex=-1;
                $this->DataList->DataSource=$this->Data;
                $this->DataList->dataBind();
        }
}

?>