Shopify flow: appending string to existing list of strings metafields
I tried recreating this but I'm not sure why it's still not appending and overrides it. Here is my code can you have a look please?
{%- assign current_mf = product.metafields | where: "namespace","filters" | where: "key","colors"| first -%}
{%- assign color_list = current_mf.value | remove:"[" | remove:"]" | strip %}
{%- capture new_color -%}
"Red"
{%- endcapture -%}
{%- if color_list contains new_color -%}
{{ current_mf.value }}
{%- elsif color_list == blank or color_list == "[]" -%}
[{{new_color}}]
{%- else -%}
[{{color_list}},{{new_color}}]
{%- endif -%}
