symfony - Twig variable from one loop in another doesn't work -

i have 2 loops in twig. 1 check stock level of product, other display product options. i'm trying create variable 1 loop can use inside other add class name list(s).

i can't work. more welcome...

what have this:

          {% set stocklevel = '' %}           {% variant in product.variants %}           {% set stocklevel = variant.stock.level %}           {{ stocklevel }} // gives 1 0 1 1 (so sizes except second 1 available)          {% endfor %}              {% option in product.options %}                 <ul class="optionslist">                   {% if option.values %}                   {% value in option.values %}           <li class=" {% if stocklevel == 0 %}not_on_stock {% endif %}" >           <a class="item">etc...</a>         </li>                               {% endfor %}                 {% endif %}                </ul>             {% endfor %} 

i believe there wrong way handling data. right now, event if variable accessible in second for loop, value of 1 set lastly , script would've failed anyway.

i can suggest bit of hacky way, feel free improvise or use idea behind it.

say, assign empty array:

{% set variantsarray = [] %} 

then, use filter merge fill dummy data(that's first loop comes play)

{% number in 1..5 %}     {% set variantsarray = variantsarray | merge([number]) %} {% endfor %} 

then sure, can access values there, dump out(that's second loop comes)

{% index in 1..3 %}     {{ dump(variantsarray) }} {% endfor %} 

the following dump generated:

array:5 [▼    0 => 1    1 => 2    2 => 3    3 => 4    4 => 5 ] 

hope got idea. suggestions kindly welcome.