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On 11/28/2017 at 1:10 AM, johnt said:

Thank you oskar86!

The instructions work on 1.6.1.17.

But there is no auto update of weight when changing quantities.

 

Anyone found a fix for this ??

edit /themes/default-bootstrap/js/cart-summary.js
no Ajax-cart.js and else

here is my develop notes, may help you, use posts in this thred to obtain it, combine oskar86 and karcharoth  post

worikg well here PS1.6.0.9

<?
//themes/default-bootstrap/modules/blockcart/blockcart-json.tpl
		$totalWeight = $params['cart']->getTotalWeight().' '.Configuration::get('PS_WEIGHT_UNIT'); tcl 2019-04-02 
			'total_weight' => $totalWeight

//themes/default-bootstrap/product.tpl			
			            <p >{* tcl 2019-04-02 *}
				<label>{l s='Hmotnost:'} </label>
				<span class="editable">{round($product->weight,2)} kg</span> 
			</p>{* konec tcl 2019-04-02 *}
			
//themes/default-bootstrap/shopping-cart.tpl
                <tr class="cart_total_weight">{* tcl 2019-04-02 *}
                <td colspan="{$col_span_subtotal}" class="text-right"><span>{l s='Celková hmotnost'}</span></td>
                <td colspan="2" class="price"><span id="total_weight">{$cart->getTotalWeight()|escape:'htmlall':'UTF-8'|number_format:3} {Configuration::get('PS_WEIGHT_UNIT')}</span></td>{* konec tcl 2019-04-02 *}
                </tr>	

                <td rowspan="{3+$total_discounts_num+$use_show_taxes+$total_wrapping_taxes_num+1} " colspan="2" id="cart_voucher"class="cart_voucher">	
                
                <td rowspan="{3+$total_discounts_num+$use_show_taxes+$total_wrapping_taxes_num+1} {* tcl 2019-04-02 *}" colspan="2" id="cart_voucher" class="cart_voucher">							

//themes/default-bootstrap/shopping-cart.tpl                
"totalWeight": {$total_weight|json_encode},{* tcl 2019-04-02 *}

//classes/Cart.php
	$total_weight = $this->getTotalWeight();
	'total_weight' => $total_weight.' '.Configuration::get('PS_WEIGHT_UNIT') /*tcl*/
	
//themes/default-bootstrap/js/cart-summary.js	
	    $('#total_weight').html(json.total_weight);  /*tcl*/