WordPress Edit Post

<?php
/*
Template Name: Edit Product
*/
get_header();
if (is_user_logged_in() ) {
?>

<?php
//error_reporting(0);
if(isset ($_POST['submit'])=='UPDATE')
{

    $postid=$_POST['prodId'];
    $prodName=$_POST['prodName'];
    $category=$_POST['category'];
    $prodBrand=$_POST['product_brand'];
    $prodModel=$_POST['product_model'];
    $prodCondition=$_POST['product_condition']; // new/ used
    $prodPrice=$_POST['product_price'];
    $prodMktPrice=$_POST['market_price'];
    $prodDescription=$_POST['prodDescription'];
        // PRODUCT IMAGES
        $prodImage1=$_FILES['product_image_1']['name'];
        $prodImage2=$_FILES['product_image_2']['name'];
        $prodImage3=$_FILES['product_image_3']['name'];
        $prodImage4=$_FILES['product_image_4']['name'];

    if($prodName=="")
    {
        $setval=0;
        $pnameerror="You forgot to enter a Product Title";
    }
    else
    {
        $setval=1;
        $pnameerror="";
    }
    if($prodPrice=="")
    {
        $setval4=0;
        $priceerror="Please enter a value for the Product Price field";
    }
    else
    {
        $setval4=1;
        $priceerror="";
    }

    if($setval==1 && $setval4==1)
    {
    $postdate = date('Y-m-d H:m:s');
    $post_slug = sanitize_title( $prodName );
    $post = array(
                    'ID'      => $postid,
                    'post_title'    => wp_strip_all_tags($prodName),
                    'post_name'     => $post_slug,
                    'post_content'     => $prodDescription,
                    'post_category'    =>array( $category ),  // Usable for custom taxonomies too
                    'post_date'     =>   $postdate,
                    'post_status'    => 'publish'  // Choose whether 'draft' | 'publish' | 'pending'| 'future' | 'private' | or, custom registered status
                );
    // Pass  the value of $post to WordPress the insert function
    // http://codex.wordpress.org/Function_Reference/wp_insert_post
    wp_update_post($post);

            require_once(ABSPATH . 'wp-admin/includes/admin.php');
            require_once (ABSPATH . 'wp-admin/includes/media.php');
            require_once (ABSPATH . 'wp-admin/includes/file.php');
            require_once (ABSPATH . 'wp-admin/includes/image.php');

    update_post_meta($postid, 'product_brand', $prodBrand);
    update_post_meta($postid, 'product_model', $prodModel);
    update_post_meta($postid, 'product_price', $prodPrice);
    update_post_meta($postid, 'market_price', $prodMktPrice);
    update_post_meta($postid, 'product_condition', $prodCondition); // New or Old
    // PRODUCT IMAGE
    if($prodImage1!="")
    {
        $attachmentId1 = media_handle_upload($postid,'product_image_1');
        update_post_meta($postid, 'product_image_1', $attachmentId1);
        // TO MAKE THE IMAGE A POST THUMBNAIL
        set_post_thumbnail($postid, $attachmentId1);
    }
    if($prodImage2!="")
    {
        $attachmentId2 = media_handle_upload($postid, 'product_image_2');
        update_post_meta($postid, 'product_image_2', $attachmentId2);
    }

    if($prodImage3!='')
    {
        $attachmentId3 = media_handle_upload($postid,'product_image_3');
        update_post_meta($postid, 'product_image_3', $attachmentId3);
    }

    if($prodImage4!="")
    {
        $attachmentId4 = media_handle_upload($postid,'product_image_4');
        update_post_meta($postid, 'product_image_4', $attachmentId4);
    }

    //$location=home_url('/my-products');
?>
   <script type="text/javascript">
   <!--
    //  window.location= <?php echo "'" . $location . "'"; ?>;
   //-->
   </script>
<?php
}}
?>

<?php
$post_id=$_GET['post'];
$queried_post = get_post($post_id);
$custom = get_post_custom($post_id);
 ?>

        <?php get_sidebar(); ?>

        <section id="main">

            <h1 class="entry-title">Edit Product</h1>
            <br/>
            <div class="entry-content">
            <form name="new_post" id="new_post" action="" method="post"  enctype="multipart/form-data">
            <input type="hidden" name="prodId" value="<?php echo $post_id;?>"  />

                <div id="edit-product-table">
                    <div><label for="fname" class="left bold">Product Title <span class="required">*</span></label></div>
                    <div><input type="text" class="right" name="prodName" value="<?php echo $queried_post->post_title;?>"/><br/>
                    <div class="validationerror"><?php if( isset($pnameerror) ){ echo $pnameerror; }?></div></div>
                    <br/>
                    <div><label for="fname" class="left bold">Product Category</label></div>
                    <div>
                    <?php $get_category = get_the_category( $post_id ); ?>
                    <?php $cat_id = $get_category[0]->cat_ID; ?>
                    <?php $args = array(
                        'show_option_all'    => '',
                        'show_option_none'   => '',
                        'orderby'            => 'ID',
                        'order'              => 'ASC',
                        'show_count'         => 0,
                        'hide_empty'         => 0,
                        'child_of'           => 0,
                        'exclude'            => '1',
                        'echo'               => 1,
                        'selected'           => $cat_id,
                        'hierarchical'       => 1,
                        'name'               => 'category',
                        'id'                 => 'thecategory',
                        'class'              => 'postform edit-product-categories',
                        'depth'              => 0,
                        'tab_index'          => 0,
                        'taxonomy'           => 'category',
                        'title_li' => __( 'Categories' ),
                        'hide_if_empty'      => false
                        ); ?>
                    <?php wp_dropdown_categories( $args ); ?>
                    <script>
                        //document.getElementById('thecategory').selected="selected";
                    </script>
                    </div>
                    <br/>
                    <div><label for="prodDescription" class="left bold">Product Details</label></div>
                    <div><textarea cols="68" rows="10" name="prodDescription"><?php echo $queried_post->post_content; ?></textarea></div>
                    <br/>
                    <div  style="width: 44%; position: relative; float: left;">
                        <div><label for="product_price" class="left bold">Product Price <span class="required">*</span></label></div>
                        <div><input type="text" class="right" name="product_price" value="<?php echo $custom['product_price'][0];?>"/><br/>
                        <div class="validationerror"><?php if( isset($priceerror) ){ echo $priceerror; }?></div></div>
                    </div>
                    <div  style="width: 44%; position: relative; float: left;">
                        <div><label for="market_price" class="left bold">Market Price</label></div>
                        <div><input type="text" class="right" name="market_price" value="<?php echo $custom['market_price'][0];?>"/></div>
                    </div>

                    <div style="clear:both;"></div><br/>

                    <div  style="width: 44%; position: relative; float: left;">
                        <div><label for="product_brand" class="left bold">Brand</label></div>
                        <div><input type="text" class="right" name="product_brand" value="<?php echo $custom['product_brand'][0];?>"/></div>
                    </div>

                    <div  style="width: 44%; position: relative; float: left;">
                        <div><label for="product_model" class="left bold">Model</label></div>
                        <div><input type="text" class="right" name="product_model" value="<?php echo $custom['product_model'][0];?>"/></div>
                    </div>

                    <div style="clear:both;"></div><br/>
                    <div><label for="product_condition" class="left bold">New/Old</label><input type="radio" value="New" <?php if ( $custom['product_condition'][0] == 'New' ) { echo 'checked="checked"'; } ?> name="product_condition" style="margin-left: 10%;"/> New &nbsp; <input type="radio" value="Old" name="product_condition" <?php if ( $custom['product_condition'][0] == 'Old' ) { echo 'checked="checked"'; } ?>/> Old</div>
                    <br/>
                    <div><label for="product_images" class="left bold">Product Image[s]</label></div>
                    <ul id="edit-product-img-field" style="margin-top: 2%;">
                        <li><?php if ( $custom['_thumbnail_id'][0] ) { ?><img src="<?php echo wp_get_attachment_url($custom['_thumbnail_id'][0]); ?>" width="50" height="50" alt="Product Image 1"/><?php } ?> <input type="file" class="right"   name="product_image_1"/></li>
                        <li><?php if ( $custom['product_image_2'][0] ) { ?><img src="<?php echo wp_get_attachment_url($custom['product_image_2'][0]); ?>" width="50" height="50" alt="Product Image 2"/><?php } ?> <input type="file" class="right"  name="product_image_2"/> </li>
                        <li><?php if ( $custom['product_image_3'][0] ) { ?><img src="<?php echo wp_get_attachment_url($custom['product_image_3'][0]); ?>" width="50" height="50" alt="Product Image 3"/><?php } ?> <input type="file" class="right"  name="product_image_3" id="product_image_3"/></li>
                        <li><?php if ( $custom['product_image_4'][0] ) { ?><img src="<?php echo wp_get_attachment_url($custom['product_image_4'][0]); ?>" width="50" height="50" alt="Product Image 4"/><?php } ?> <input type="file" class="right"  name="product_image_4"/></li>
                    </ul>
                    <br/>
                    <div>
                        <?php //cryptographic 'nonce' field will load here, but will be hidden ?>
                        <input type="hidden" name="action" value="new_post" />
                        <?php wp_nonce_field( 'new-post' ); ?>
                        <input type="submit" name="submit" value="UPDATE" style="padding: 0.5% 2%; font-weight: bold; cursor: pointer; border: 1px solid #333;"/>
                    </div>

                </div> <!-- #edit-product-table -->

            </div><!-- .entry-content -->

        </section>
<?php
}
else
{
    $location=home_url('/wp-login.php');
?>
   <script type="text/javascript">
   <!--
      window.location= <?php echo "'" . $location . "'"; ?>;
   //-->
   </script>
<?php
}

get_footer(); ?>