I want to get different id of multiple select boxes after click on add button in ajax and using POST method send those value in django

When I click on add, then it will be adding and I’m getting the same values of select and input boxes but I want the different id’s every time for ajax call and change the value dynamically and send those values in Django.

I have tried 1 solution but after applying that my add functionality stopped working.

I have tried multiple solutions and have been working on it for 2-3 weeks, but I didn’t get what I want.

$(document).ready(function() {
    var maxField = 10; //Input fields increment limitation
    var addButton = $('.add_button'); //Add button selector
    var wrapper = $('.field_wrapper'); //Input field wrapper
    var fieldHTML = '<section class="row"><div class="col-md-3 mt-2"><label for="CustomerCity" class="">Select Product</label><select class="form-control selectitem" name="item[]" id="selectitem" required><option selected>Select Item</option></select></div><div class="col-md-2 mt-2"><label for="CustomerCity" class="">Unit Price</label><input name="customer_city" id="customer_city" type="text" class="form-control" value="" placeholder="Unit Price" required></div><div class="col-md-2 mt-2"><label for="CustomerCity" class="">Quantity</label><input name="customer_city" id="customer_city" type="text" class="form-control" value="" placeholder="Quantity" required></div><div class="col-md-2 mt-2"><label for="CustomerCity" class="">Tax Amount</label><input name="customer_city" id="customer_city" type="text" class="form-control" value="" placeholder="Tax Amount" required></div><div class="col-md-2 mt-2"><label for="CustomerCity" class="">Extended Total</label><input name="customer_city" id="customer_city" type="text" class="form-control" value="" placeholder="Extended Total" required></div><div class="col-md-1 mt-2"><a href="javascript:void(0);" class="remove_button btn btn-danger mt-4 p-2 form-control">Delete</a></div></section>'; //New input field html 
    var x = 1; //Initial field counter is 1

    //Once add button is clicked
    $(addButton).click(function() {
        //Check maximum number of input fields
        if (x < maxField) {
            x++; //Increment field counter
            $(wrapper).append(fieldHTML); //Add field html
        }
    });

    //Once remove button is clicked
    $(wrapper).on('click', '.remove_button', function(e) {
        e.preventDefault();
        $(this).parents('section').remove(); //Remove field html
        x--; //Decrement field counter
    });
});

html code

.position-relative {
    position: relative !important
}
.form-group {
    margin-bottom: 1rem
}
.col-md-12, .col-md-3, .col-md-2, .col-md-1{
    position: relative;
    width: 100%;
    padding-right: 15px;
    padding-left: 15px
}
a {
    color: #3f6ad8;
    text-decoration: none;
    background-color: transparent
}
a:hover {
    color: #0056b3;
    text-decoration: underline
}
.btn {
    display: inline-block;
    font-weight: 400;
    color: #495057;
    text-align: center;
    vertical-align: middle;
    user-select: none;
    background-color: transparent;
    border: 1px solid transparent;
    padding: .375rem .75rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: .25rem;
    transition: color 0.15s, background-color 0.15s, border-color 0.15s, box-shadow 0.15s
}
.btn-primary {
    color: #fff;
    background-color: #3f6ad8;
    border-color: #3f6ad8
}
.btn-primary:hover {
    color: #fff;
    background-color: #2955c8;
    border-color: #2651be
}
.row {
    display: flex;
    flex-wrap: wrap;
    margin-right: -15px;
    margin-left: -15px
}
.form-control {
    display: block;
    width: 100%;
    height: calc(2.25rem + 2px);
    padding: .375rem .75rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: #495057;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid #ced4da;
    border-radius: .25rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out
}
label {
    display: inline-block;
    margin-bottom: .5rem
}
input,
button,
select,
optgroup,
textarea {
    margin: 0;
    font-family: inherit;
    font-size: inherit;
    line-height: inherit
}
@media (min-width: 576px) {
.form-group {
        display: flex;
        flex: 0 0 auto;
        flex-flow: row wrap;
        align-items: center;
        margin-bottom: 0
    }
}

css code

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="position-relative mt-3 form-group col-md-12 field_wrapper">
                        <div class="row ">
                            <div class="col-md-3">
                                <label for="CustomerCity" class="">Select Product</label>
                                <select class="form-control selectitem" name="item[]" id="selectitem" required>
                                    <option selected>Select Item</option>
                                </select>
                            </div>
                            <div class="col-md-2">
                                <label for="CustomerCity" class="">Unit Price</label>
                                <input name="customer_city" id="customer_city" type="text" class="form-control" value="" placeholder="Unit Price" required>
                            </div>
                            <div class="col-md-2">
                                <label for="CustomerCity" class="">Quantity</label>
                                <input name="customer_city" id="customer_city" type="text" class="form-control" value="" placeholder="Quantity" required>
                            </div>
                            <div class="col-md-2">
                                <label for="CustomerCity" class="">Tax Amount</label>
                                <input name="customer_city" id="customer_city" type="text" class="form-control" value="" placeholder="Tax Amount" required>
                            </div>
                            <div class="col-md-2">
                                <label for="CustomerCity" class="">Extended Total</label>
                                <input name="customer_city" id="customer_city" type="text" class="form-control" value="" placeholder="Extended Total" required>
                            </div>
                            <div class="col-md-1">
                                <a href="javascript:void(0);" class="add_button btn form-control mt-4 btn-primary p-2" title="Add field">ADD</a>
                            </div>
                        </div>
                    </div>

It’s not valid to have multiple entities with the same id attribute. Each of your fields needs to have a different id, and should have different names.

Also, since you’re talking about submitting this to a Django view, I would also recommend that you use Django forms and formsets for managing these forms.