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Debug liquid for Shopify

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 %}
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2

Answers


  1. Chosen as BEST ANSWER
    0

    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 %}

  2. 0

    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}}
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