I'm really puzzled and can't understand why my {{ time }} returns an empty value.
I'm trying to calculate the difference between the time currently and a booking time in Shopify. For the booking I have the date (first line_item.property) and the time (second one) coming separately. I want to add one to another and then compare it to the current time, but before I can do the math I have tried to display the different variables I have created.
{{ now }} & {{ date }} work fine but for {{ time }} it returns an empty value. On the other hand if instead of assigning it a value name I just display the line.item.property it works just fine.
Can you help me understand what I am doing wrong here?
{% assign today = 'now' | date: '%s' %}
{% for order in customer.orders %}
{%- for line_item in order.line_items -%}
{% for property in line_item.properties limit:1 %}
{% assign date = property.last | date: '%s' %}
{% endfor %}
{% for property in line_item.properties offset:1 %}
{% assign time = property.last | date: '%s' %}
{% endfor %}
{%- endfor -%}
{{ now }} - {{ date }} - {{ time }}
{% endfor %}
2 Answers
By using plus: 0 you can convert the string to integer, this will enable math operation for your comparison.
{% assign today = 'now' | date: '%s' | plus: 0 %}
check with {% unless line_item.properties == empty %} to see if properties exist.
{% assign date = property.last | date: '%s' %} , the variable property.last must follow a well-formatted dates for date to work. liquid-date-format
{% for property in line_item.properties offset:1 %}
{% assign time = property.last | date: '%s' %}
{% endfor %}
problem with offset:1, if the array only has 1 line_item.properties this will not run at all. Hence time is empty; or it exist but property.last does not have a date format.
{% assign today = 'now' | date: '%s' | plus: 0 %}
{% for order in customer.orders %}
{%- for line_item in order.line_items -%}
{% unless line_item.properties == empty %}
{% for property in line_item.properties %}
{% if forloop.index == 1 %}
{% assign date = property.last | date: '%s' | plus: 0 %}
{% if date == 0 %}
{% comment %}Opp! Not A Date, Terminate loop{% endcomment %}
{% break %}
{% endif %}
{% else %}
{% assign time = property.last | date: '%s' | plus: 0 %}
{% unless time == 0 %}
{% assign date = date - time %}
{% endunless %}
{% endif %}
{% endfor %}
{% endunless %}
{% endfor %}
{{today - date}}
Thanks Charles that really unblocked me. Posting here the final version I went with as I needed to compare exact time and not simply the date of the order.
{% assign now_date = 'now' | date: '%s' | plus: 0 %}
{% assign now_time = 'now' | date: '%s' | plus: 0 %}
{% for order in customer.orders %}
{%- for line_item in order.line_items -%}
{% for property in line_item.properties limit:1 %}
{% assign booking_date = property.last | date: '%s' | plus: 0 %}
{% endfor %}
{% for property in line_item.properties offset:1 limit:1 %}
{% assign booking_time = property.last | date: '%s' | plus: 0 %}
{% endfor %}
{% assign date_to_compare = booking_date | plus: '86400' %}
{% unless now_date > date_to_compare %}
{% if now_time <= booking_time or now_date <= booking_date %}SEANCE A VENIR{% endif %}
{% endunless %}
{%- endfor -%}
{% endfor %}
