Django template pass array to input field

Question

I have a hidden input field in my django template where I'm passing as value an array.

  <form method="post" action="{% url 'flights:flight-selection' %}">{% csrf_token %}
    <input type="hidden" id="fa_f_ids" name="fa_f_ids" value="{{ value.fa_f_ids }}">
    <button type="submit" class="btn btn-light">Select</button>
  </form>

When I submit this form via post request I want to get the value of fa_f_ids as an array but I am getting a string instead when I'd like to get an array.

request.POST.get("fa_flight_id")
#=> <QueryDict: {'csrfmiddlewaretoken': ['UoYqbTUlNxTEJW5AUEfgsgsLuG63dUsvX88DkwGLUJfbnwJdvcfsFhi75yie5uMX'], 'fa_f_ids': ["['AMX401-1560750900-schedule-0000', 'AMX19-1560782100-schedule-0001']"]}>

I had the same problem when I was getting the data from the request. I've searched a lot about this and the only solution that worked out for me was converting the querydict into a python dict and extracting the array from the value. — Igor Servulo
– Igor Servulo, Commented Jun 18, 2019 at 20:08
you can use request.POST.getlist, to change string into array — flakavir
– flakavir, Commented Jun 18, 2019 at 20:33
I tried that, doesn't work. .getlist returns this: ["['AMX401-1560750900-schedule-0000', 'AMX19-1560782100-schedule-0001']"] — Cyzanfar
– Cyzanfar, Commented Jun 18, 2019 at 20:34

ivissani · Accepted Answer · 2019-06-18 20:36:10Z

1

You need to split the array into several hidden fields, each representing one position of your array:

  <form method="post" action="{% url 'flights:flight-selection' %}">
    {% csrf_token %}
    {% for val in value.fa_f_ids %}
        <input type="hidden" name="fa_f_ids[{{ forloop.counter0 }}]" value="{{ val }}">
    {% endfor %}
    <button type="submit" class="btn btn-light">Select</button>
  </form>

answered Jun 18, 2019 at 20:36

ivissani

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1 Comment

Cyzanfar Over a year ago

How do I retrieve the values in the view? fa_f_ids[0]': ['AMX401-1560750900-schedule-0000'], 'fa_f_ids[1]': ['AMX19-1560782100-schedule-0001']}

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