Passing js variables to django view [duplicate]

This question already has answers here: How do you pass or share variables between django views? (3 answers) Closed 2 years ago.

I'm using jquery .submit() function to calculate two variables(f_amount and f_variables) 开发者_StackOverflow社区but I don't know how to pass them to the next django view.

<form method="POST" action="/app/view">{% csrf_token %}                    
                    <select  id="fd" name="fd">
                        <option value="2">2</option>
                        <option value="3">3</option>
                        <option value="5">5</option>
                        <option value="1">1</option>
                    </select>

                <div id="demo2" class="demo">
                <ul>
                {% for f_type, fs in f.items %}
                    <li>
                        <a>{{ f_type }}</a>
                        <ul>
                            {% for f in fs %}
                                <li><a id="{{f.0}}">{{f.1}}</a></li>
                            {% endfor %}
                        </ul>
                    </li>
                {% endfor %}
                </ul>
                </div>
                <input id="plan" type="submit" value="sched it!" class="btn primary" />
        </form>

<script>
$("form").submit(function() {
                var checked_ids = new Array();
                var f_amount = $("select option:selected").val();
                $("#demo2").jstree("get_checked",null,true).each 
                    (function (index,value) {
                        if (value.children[2].id) { 
                            checked_ids.push(value.children[2].id); 
                        }
                    });
                var f_ids = checked_ids.join(" ");

 });
</script>

---

i could do it this way in Django 2.1

x123.html First create a hidden input field like this in the 1st html file

<form id="scoresForm" method="POST">
  {% csrf_token %}
  <input type="hidden" name="scores" value=""/>
</form>

views.py then define your View in the views.py and do the POST data handling

def result(request, league_id, season_id, matchday):
    scores = request.POST.get("scores", None)
    if scores != None:
        scores = scores.replace(""", "'")
    #scores = scores[1:-1]
    scores = json.loads(scores)
    context = {
        'league_id': league_id,
        'season_id': season_id,
        'matchday': matchday,
        'scores': scores,
    }
    return render(request, 'matchstatistics/result.html', context)

x123.js and lastly in your JS file which belongs to your 1st html template

    var resultUrl = currentUrl + "/result/" + league_id + "/" + season_id + "/" + matchday + "/";
    var scoresForm = document.forms['scoresForm'];
    scoresForm.action = resultUrl;
    scoresForm.elements["scores"].value = JSON.stringify(scores);
    document.getElementById("scoresForm").submit();

y123.html You are able to access the passed Array/Variable easily in your following view by calling f.e. {{ scores }} in your Django Template

Please feel free to optimize the code, especially the JSON-Object serialization and deserialization part, im new to Django/Python/JavaScript :)