Utilizing Django's URL dispatcher dynamically in JavaScript

Question

Utilizing Django's URL dispatcher dynamically in JavaScript

Im attempting to implement a dynamic url dispatcher as follows:

"{% url 'url_name' 'variable' %}"

where variable is generated dynamically in my javascript.

My goal is to redirect to another page when the value of a <select> element changes.

$(document).ready(function() {
  $('#select').change(function() {
      var id = $('#select').val();
      window.location.replace("{% url 'url_name' 'id' %}");
  });
});

I am unable to achieve this using simple string concatenation like so:

"{% url 'url_name' '" + id + "' %}"

because it results in an error stating

Reverse for 'url_name' with arguments '('" + id + "',)' not found.

The <select> element is populated with backend data:

<select id="select">
  {% for item in list %}
  <option value="{{item.id}}">{{item.name}}</option>
  {% endfor %}
</select>

I am struggling to find the correct syntax for accomplishing this task.

javascript django django-templates

Answer 1

Answer №1

One challenge arises from the fact that JavaScript runs in the browser while Django operates on the server. This disparity means resolving an expression using both languages, which run in separate environments and at different times, is not feasible.

An alternative approach could involve utilizing a data- attribute within each <option> element to display the URL:

<select id="select">
  {% for item in list %}
  <option data-url="{% url 'url_name' item.id %}" value="{{item.id}}">{{item.name}}</option>
  {% endfor %}
</select>

To handle this behavior in JavaScript:

$('#select').change(function() {
  var url = $(this).find('option:selected').data('url');
  window.location.replace(url);
});

Answer 2

One challenge arises from the fact that JavaScript runs in the browser while Django operates on the server. This disparity means resolving an expression using both languages, which run in separate environments and at different times, is not feasible.

An alternative approach could involve utilizing a data- attribute within each <option> element to display the URL:

<select id="select">
  {% for item in list %}
  <option data-url="{% url 'url_name' item.id %}" value="{{item.id}}">{{item.name}}</option>
  {% endfor %}
</select>

To handle this behavior in JavaScript:

$('#select').change(function() {
  var url = $(this).find('option:selected').data('url');
  window.location.replace(url);
});

Utilizing Django's URL dispatcher dynamically in JavaScript

Answer №1

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