rahulnrathodkcl

OK, Pls find attached screenshot of product settings

https://prnt.sc/stpnbr

It is not defined by us. Its defined by woocommerce itself.

Here is a product link facing this issue.

https://www.ktron.in/product/solenoid-valve/

All the products on sale are facing this issue.

Are there by any chance any errors or codes in the admin-ajax.php file that gets donwnloaded (e.g. things that are not in the original admin-ajax.php file).

The admin-ajax.php that gets downloaded is completely empty.

remove the php close + open tag in line 9 (?><?php)
remove the phe close tag at the end of the file (line 321, ?>)

As expected, after making this change, the problem still persists.

Also, as invoice for other orders are generated, this does not seem to be problem of conflict with any other plugin.

• This reply was modified 6 years, 2 months ago by rahulnrathodkcl.

Hi,

Thanks for the quick reply. Regarding your suggestions,

Do you have any custom code in your theme functions.php related to PDF invoices? If yes, could you share this with us?

Yes, we do have custom code in functions.php file.

<?php
add_action( 'wp_enqueue_scripts', 'martfury_child_enqueue_scripts', 20 );
function martfury_child_enqueue_scripts() {
	wp_enqueue_style( 'martfury-child-style', get_stylesheet_uri() );
	if ( is_rtl() ) {
		wp_enqueue_style( 'martfury-rtl', get_template_directory_uri() . '/rtl.css', array(), '20180105' );
	}
}
?><?php
/**
 *  * Add HSCODE to WooCommerce products.
 *   */
/**
 *  * Render the HSCODE meta field.
 *   */
function woocommerce_render_hscode_field() {
	   $input   = array(
		         'id'          => '_hscode',
			       'label'       => sprintf(
				                '<abbr title="%1$s">%2$s</abbr>',
						         _x( 'HSCode', 'field label', 'storefront-child' ),
							          _x( 'HSCode', 'abbreviated field label', 'storefront-child' )
								        ),
									      'value'       => get_post_meta( get_the_ID(), '_hscode', true ),
									            'desc_tip'    => true,
										          'description' => __( 'Enter the HS Code', 'storefront-child' ),
											     );
?><div id="hscode_attr" class="options_group">
<?php woocommerce_wp_text_input( $input ); ?>
</div><?php
}
add_action( 'woocommerce_product_options_inventory_product_data', 'woocommerce_render_hscode_field' );
/**
 *  * Save the product's GTIN number, if provided.
 *   *
 *    * @param int $product_id The ID of the product being saved.
 *     */
function woocommerce_save_hscode_field( $product_id ) {
	   if (
		         ! isset( $_POST['_hscode'], $_POST['woocommerce_meta_nonce'] )
			       || ( defined( 'DOING_AJAX' ) && DOING_AJAX )
			             || ! current_user_can( 'edit_products' )
				           || ! wp_verify_nonce( $_POST['woocommerce_meta_nonce'], 'woocommerce_save_data' )
					      ) {
						            return;
							       }
	      $hscode = sanitize_text_field( $_POST['_hscode'] );
	      update_post_meta( $product_id, '_hscode', $hscode );
}
add_action( 'woocommerce_process_product_meta','woocommerce_save_hscode_field' );

// Set Tax Calculation Accordin to Address for Local Pickup Shipping method
add_filter( 'woocommerce_apply_base_tax_for_local_pickup' , '__return_false');

//
//
//
//Add Minimum Product Order Qty field on Edit Product -> Inventory Tab.
function wc_qty_add_product_field() {

	echo '<div class="options_group">';
	woocommerce_wp_text_input( 
		array( 
			'id'          => '_wc_min_qty_product', 
			'label'       => __( 'Minimum Quantity', 'woocommerce-min-quantity' ), 
			'placeholder' => '',
			'desc_tip'    => 'true',
			'description' => __( 'Optional. Set a minimum quantity limit allowed per order. Enter a number, 1 or greater.', 'woocommerce-min-quantity' ) 
		)
	);
	echo '</div>';
	// echo '<div class="options_group">';
	// woocommerce_wp_text_input( 
	// 	array( 
	// 		'id'          => '_wc_max_qty_product', 
	// 		'label'       => __( 'Maximum Quantity', 'woocommerce-max-quantity' ), 
	// 		'placeholder' => '',
	// 		'desc_tip'    => 'true',
	// 		'description' => __( 'Optional. Set a maximum quantity limit allowed per order. Enter a number, 1 or greater.', 'woocommerce-max-quantity' ) 
	// 	)
	// );
	// echo '</div>';	
}
add_action( 'woocommerce_product_options_inventory_product_data', 'wc_qty_add_product_field' );

/*
* This function will save the value set to Minimum Quantity and Maximum Quantity options
* into _wc_min_qty_product and _wc_max_qty_product meta keys respectively
*/

function wc_qty_save_product_field( $post_id ) {
	$val_min = trim( get_post_meta( $post_id, '_wc_min_qty_product', true ) );
	$new_min = sanitize_text_field( $_POST['_wc_min_qty_product'] );
	
	if ( $val_min != $new_min ) {
		update_post_meta( $post_id, '_wc_min_qty_product', $new_min );
	}
}
add_action( 'woocommerce_process_product_meta', 'wc_qty_save_product_field' );

/* 
	To Change the Default Add to Cart Qty on Button Press, change the woocommerce plugins' includes/wc-template-functions.php files woocommerce_template_loop_add_to_cart, and change the qty "1" with dynamic wc_min_qty_field

	if ( ! function_exists( 'woocommerce_template_loop_add_to_cart' ) ) {
	function woocommerce_template_loop_add_to_cart( $args = array() ) {
		global $product;

		if ( $product ) {
 		
	 		$product_id = $product->get_id();
			$min_qty = get_post_meta( $product_id ,'_wc_min_qty_product', true);
			$qty = 1;
	
			if ( ! empty ( $min_qty)) {
				if (false !== $min_qty) {
					$qty = $min_qty;
				}
			}

			$defaults = array(
				'quantity'   => $qty,
				'class'      => implode(
					' ',
					array_filter(
						array(
							'button',
							'product_type_' . $product->get_type(),
							$product->is_purchasable() && $product->is_in_stock() ? 'add_to_cart_button' : '',
							$product->supports( 'ajax_add_to_cart' ) && $product->is_purchasable() && $product->is_in_stock() ? 'ajax_add_to_cart' : '',
						)
					)
				),
				'attributes' => array(
					'data-product_id'  => $product->get_id(),
					'data-product_sku' => $product->get_sku(),
					'aria-label'       => $product->add_to_cart_description(),
					'rel'              => 'nofollow',
				),
			);

			$args = apply_filters( 'woocommerce_loop_add_to_cart_args', wp_parse_args( $args, $defaults ), $product );

			if ( isset( $args['attributes']['aria-label'] ) ) {
				$args['attributes']['aria-label'] = wp_strip_all_tags( $args['attributes']['aria-label'] );
			}

			wc_get_template( 'loop/add-to-cart.php', $args );
		}
	}
}

*/

/*
* Setting minimum quantity input args. 
*/

function wc_qty_input_args( $args, $product ) {
	
	$product_id = $product->get_parent_id() ? $product->get_parent_id() : $product->get_id();
	
	$product_min = wc_get_product_min_limit( $product_id );

	if ( ! empty( $product_min ) ) {
		// min is empty
		if ( false !== $product_min ) {
			$args['min_value'] = $product_min;
		}
	}

	return $args;
}
add_filter( 'woocommerce_quantity_input_args', 'wc_qty_input_args', 10, 2 );

function wc_get_product_min_limit( $product_id ) {
	$qty = get_post_meta( $product_id, '_wc_min_qty_product', true );
	if ( empty( $qty ) ) {
		$limit = false;
	} else {
		$limit = (int) $qty;
	}
	return $limit;
}

/*
* Validating the quantity on add to cart action with the quantity of the same product available in the cart. 
*/
function wc_qty_add_to_cart_validation( $passed, $product_id, $quantity, $variation_id = '', $variations = '' ) {

	$product_min = wc_get_product_min_limit( $product_id );
	// $product_max = wc_get_product_max_limit( $product_id );

	if ( ! empty( $product_min ) ) {
		// min is empty
		if ( false !== $product_min ) {
			$new_min = $product_min;
		} else {
			// neither max is set, so get out
			return $passed;
		}
	}

	$already_in_cart 	= wc_qty_get_cart_qty( $product_id );
	$product 			= wc_get_product( $product_id );
	$product_title 		= $product->get_title();
	
	if ( !is_null( $new_min ) ) {
		
		if(($already_in_cart + $quantity) < $new_min) {
			$passed=false;

			wc_add_notice( apply_filters( 'isa_wc_min_qty_error_message_already_had', sprintf( __( 'You need to  add a minimum of %1$s x  %2$s\'s to cart.', 'woocommerce-min-quantity' ), 
						$new_min,
						$product_title,),
					$new_min,
					$already_in_cart ),
			'error' );
		}

		// if ( ( $already_in_cart + $quantity ) > $new_max ) {
		// 	// oops. too much.
		// 	$passed = false;			

		// 	wc_add_notice( apply_filters( 'isa_wc_max_qty_error_message_already_had', sprintf( __( 'You can add a maximum of %1$s %2$s\'s to %3$s. You already have %4$s.', 'woocommerce-max-quantity' ), 
		// 				$new_max,
		// 				$product_title,
		// 				'<a href="' . esc_url( wc_get_cart_url() ) . '">' . __( 'your cart', 'woocommerce-max-quantity' ) . '</a>',
		// 				$already_in_cart ),
		// 			$new_max,
		// 			$already_in_cart ),
		// 	'error' );

		// }
	}

	return $passed;
}
add_filter( 'woocommerce_add_to_cart_validation', 'wc_qty_add_to_cart_validation', 1, 5 );

/*
* Get the total quantity of the product available in the cart.
*/ 
function wc_qty_get_cart_qty( $product_id ) {
	global $woocommerce;
	$running_qty = 0; // iniializing quantity to 0

	// search the cart for the product in and calculate quantity.
	foreach($woocommerce->cart->get_cart() as $other_cart_item_keys => $values ) {
		if ( $product_id == $values['product_id'] ) {				
			$running_qty += (int) $values['quantity'];
		}
	}

	return $running_qty;
}

/*
	/*cutomized weight based shipping*//*
add_filter( 'woocommerce_package_rates', 'ktron_woocommerce_tiered_shipping',999, 2);
function ktron_woocommerce_tiered_shipping( $rates, $package ) {
	
	$cart_weight = WC()->cart->cart_contents_weight/1000;
	$cart_weight = ceil($cart_weight + 0.20) - 1;
	if ( isset ( $rates['flat_rate:10'] )) {
		if ($cart_weight>0) {
			$act_rate = $rates['flat_rate:10']->cost;
			$per_kg_weight = $act_rate - 20; 
			$extra_cost = $cart_weight * $per_kg_weight;
		
			$rates['flat_rate:10']->cost = $act_rate + $extra_cost;
		}
	}
	return $rates;
}
 */

/*            Payment Gateway Selection Based on Shipping Method   

add_filter( 'woocommerce_available_payment_gateways' , 'ktron_gateway_disable_cod' );
function ktron_gateway_disable_cod ($available_gateways) {
	if( ! is_admin() ) {
		$chosen_methods = WC()->session->get('chosen_shipping_methods');
		$chosen_shipping = $chosen_methods[0];
	
		if( isset( $available_gateways['cod']) && !((0 === strpos($chosen_shipping, 'wbs1515075f87_express_shipping_cod')) || (0 === strpos($chosen_shipping,'wbs1615075f87_express_shipping_cod')) )){
			unset( $available_gateways['cod']);
		}
	}
	return $available_gateways;
}

 */

// Display Daily Dispatch Time on Single Product Page
add_action('woocommerce_before_add_to_cart_button','display_dispatch_time',20);
function display_dispatch_time() {
	global $product;
	$id = $product->get_id();
	$min_qty = wc_get_product_min_limit($id);
	if ( !empty (min_qty) && false !== $min_qty) {
		echo '<div class="dispatch_msg_class">Minimum Order Qty: ' . $min_qty .'</div>';
	}

	echo '<div class="dispatch_msg_class">Due to ongoing Lockdown, orders placed before 12PM would be dispatched same day.</div>';}

// // Enqueue Your Font
// function my_queue_items() {
// 	wp_enqueue_style( 'ElegantIcons', '/wp-content/themes/martfury/fonts/ElegantIcons.woff', array(), null );
// }
// add_action( 'wp_enqueue_scripts', 'my_queue_items', 99 );

// // Add Crossorigin Attribute To Your Font
// function style_attributes( $html, $handle ) {
// 	if ( 'ElegantIcons' === $handle ) {
// 		return str_replace( "media='all'", "media='all' crossorigin='anonymous'", $html );
// 	}
// 	return $html;
// }
// add_filter( 'style_loader_tag', 'style_attributes', 10, 2 );

?>

Have you made any changes to the invoice template?

Yes, we did changes to template, but the invoice template seems not to be an issue, as we also tried generating invoice with Default template.

Have you tested whether this issue occurs with all plugins disabled except WooCommerce + WooCommerce PDF Invoices & Packing Slips?

Its a live site, so that is hard to do. And invoice for orders are getting generated.

Do you see any errors under WooCommerce > Status > Logs in the fatal-error logs that could be related?

No errors relating to this plugin