CASE: how to display multiple inputs for each loop of a collection?

Templates Cases
1

Let’s say we have following template :

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with this code :

*Select accounts here* {% input period.custom.accounts.costs as:account_collection range:61 accounts_var:costs %}


<br> 

{% stripnewlines %}
{% newline %}
|     Number      |     Name     |     Supplier      |     Remark
{% newline %}
|---10%-----------|---40%--------|----25%------------|-----25%-----------+
{% for acc in costs %}
  {% newline %}
  |{{ acc.number }} 
  |{{ acc.name }}
  |{% input acc.custom.costs.supplier %}
  |{% input acc.custom.costs.remark %}
{% endfor %}
{% endstripnewlines %}

But what if we would like to give in multiple suppliers for each account? Because now with this code you can give only 1 input, and not several.

Create extra fori-loop in each loop

For each iteration of a loop, we’re gonna need to create a new fori-loop to input multiple suppliers. And we have to ask ourselves, what makes each loop unique?
The answer is a variable in each loop: the accountnumber.

If we create a collection that is “attached” to that accountnumber, we can create input-variable with a fori-loop:

  {% newline %}
  |{{ acc.number }} 
  |{{ acc.name }}
  |
    {% fori supp in custom[acc.number] %}
      {% input supp.name %}
    {% endfori %}

So, the custom[acc.number] is our collection that is unique for each loop, because it’s attached to the object acc.number . Because the acc.number is a variable, we use [ ] to create that collection.

However, you may see something like this now :

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And we need our input to be on a new line for each input, so we’re use the break-tag
for that:

  {% newline %}
  |{{ acc.number }} 
  |{{ acc.name }}
  |
    {% fori supp in custom[acc.number] %}
      <br>{% input supp.name %}
    {% endfori %}
  |{% input acc.custom.costs.remark %}

That break-tag however, can’t be executed or it will result in this :

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So only in the first iteration of the loops, the break tag can’t be used. We can do this with a forloop.first and an unless-statement:

  {% newline %}
  |{{ acc.number }} 
  |{{ acc.name }}
  |
    {% fori supp in custom[acc.number] %}
      {% unless forloop.first %}
      <br>
      {% endunless %}
      {% input supp.name %}
    {% endfori %}
  |{% input acc.custom.costs.remark %}

This will give the result we need :

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PS for more info about forloop.first, check this topic about it.