Php 如何将多个pdf文件上载到Magento制造商

我想上传多个pdf与制造商我如何才能做到这一点在magento？我可以上传制造商的标志，但我不能添加多个pdf文件与制造商。有人能用代码或插件指导我吗？我已经根据需要定制了这个插件

我已经在plugin form.php文件中添加了这段代码

$connection = Mage::getSingleton('core/resource')->getConnection('core_read'); 
            $select = $connection->select()
                ->from('manufacturer_pdf', array('*')) // select * from tablename or use array('id','title') selected values
                ->where('menufecturer_name=?',Mage::registry('manufacturer_data')->getData('menufecturer_name'))               // where id =1
                ->group('pdfname');               // group by title

            $_SESSION['adminmanufacuterquery']=$rowsArray = $connection->fetchAll($select); // return all rows
            $rowArray =$connection->fetchRow($select);   //return row
            $i=1;
            foreach($rowsArray as $key=>$pdf){              
                $_SESSION['admindbmanufacuter']="yes";
                $name=$pdf['pdfname'];

                $fieldset->addField('pdfnameload'.$key, 'hidden', array(                       
                        'required'  => false,
                        'name'      => 'hidden',                        
                        'after_element_html' => '<span id="pdfrow'.$key.'" class="hint"><a href="'.Mage::getBaseUrl('media')."Manufacturer/".$name.'">'.$name.'</a>&nbsp;&nbsp;&nbsp;<span><input type="hidden" name="oldpdf'.$key.'" value="'.$pdf['manufacturer_id'].'" /></span><span style="cursor: pointer;" onclick="test('.$key.');">Delete</span></span>'
                    ));
                    $_SESSION['mycustomefield']=$i;$i++;
            }

---

我已经定制了这个插件，因为我需要

我已经在plugin form.php文件中添加了这段代码

$connection = Mage::getSingleton('core/resource')->getConnection('core_read'); 
            $select = $connection->select()
                ->from('manufacturer_pdf', array('*')) // select * from tablename or use array('id','title') selected values
                ->where('menufecturer_name=?',Mage::registry('manufacturer_data')->getData('menufecturer_name'))               // where id =1
                ->group('pdfname');               // group by title

            $_SESSION['adminmanufacuterquery']=$rowsArray = $connection->fetchAll($select); // return all rows
            $rowArray =$connection->fetchRow($select);   //return row
            $i=1;
            foreach($rowsArray as $key=>$pdf){              
                $_SESSION['admindbmanufacuter']="yes";
                $name=$pdf['pdfname'];

                $fieldset->addField('pdfnameload'.$key, 'hidden', array(                       
                        'required'  => false,
                        'name'      => 'hidden',                        
                        'after_element_html' => '<span id="pdfrow'.$key.'" class="hint"><a href="'.Mage::getBaseUrl('media')."Manufacturer/".$name.'">'.$name.'</a>&nbsp;&nbsp;&nbsp;<span><input type="hidden" name="oldpdf'.$key.'" value="'.$pdf['manufacturer_id'].'" /></span><span style="cursor: pointer;" onclick="test('.$key.');">Delete</span></span>'
                    ));
                    $_SESSION['mycustomefield']=$i;$i++;
            }