I have create a custom webform to change product quantity in picking . and  form view is working with data correctly . it's a table view.

I want to know after change the field quantity, how to pass the value to controller . all rows are together.

this is a part of my form template.  i have used input name with brackets but only pass first row values only. please help me how to transfer the dynamic field data from webform to the controller

odoo version-12.0

<t t-foreach="orders_ids" t-as="o">
    <tr style="border-bottom:1px solid black;" >
        <td style="width:10%;">   
            <input type="text" name="pick_id[]" t-att-value="o.name"  />                          
        </td>
                                            
        <td class="text-right"  style="width:20%">
            <input type="number" name="quantity[]" min="0" style="width:100%" t-att-value="o.product_uom_qty" />   
                                    
        </td>
        <td  class="text-right" style="width:20%">   
            <input type="number" name="quantity_done[]" min="0" style="width:100%" t-att-value="o.quantity_done" />                         
        </td>
    </tr>
</t>