从 Django 中的表单集中保存所有有效表单时出错

Question

我有一个表单集，但我只能保存最后一个表单：

我的看法：

@login_required(login_url='/login/')
def CCView(request):
    newAdFormSet = formset_factory(CodigoCortoForm)
    if request.method == 'POST':
        formset = newAdFormSet(request.POST, request.FILES)
        if formset.is_valid():
           for form in formset.forms:
               if form.is_valid():
                  form.save()
        return HttpResponseRedirect('/home/')
    else:
        formset = newAdFormSet()
    return render_to_response("codcorto.html",
                              {'form':formset},
                              context_instance=RequestContext(request))

视图仅惰化最后一个表单，我收到错误

Cannot insert NULL into ("PROVEEDORES_CONTENIDO"."PC_CODIGO_CORTO"."ID_PROVEEDOR")

我正在使用 javascript 通过此脚本在模板中创建更多表单：

$(document).ready(function () {
    // Code adapted from http://djangosnippets.org/snippets/1389/
    function updateElementIndex(el, prefix, ndx) {
        var id_regex = new RegExp('(' + prefix + '-\d+-)');
        var replacement = prefix + '-' + ndx + '-';
        if ($(el).attr("for")) $(el).attr("for", $(el).attr("for").replace(id_regex,
        replacement));
        if (el.id) el.id = el.id.replace(id_regex, replacement);
        if (el.name) el.name = el.name.replace(id_regex, replacement);
    }

    function deleteForm(btn, prefix) {
        var formCount = parseInt($('#id_' + prefix + '-TOTAL_FORMS').val());
        if (formCount > 1) {
            // Delete the item/form
            $(btn).parents('.item').remove();
            var forms = $('.item'); // Get all the forms
            // Update the total number of forms (1 less than before)
            $('#id_' + prefix + '-TOTAL_FORMS').val(forms.length);
            var i = 0;
            // Go through the forms and set their indices, names and IDs
            for (formCount = forms.length; i < formCount; i++) {
                $(forms.get(i)).children().children().each(function () {
                    if ($(this).attr('type') == 'text') updateElementIndex(this, prefix, i);
                });
            }
        } // End if
        else {
            alert("You have to enter at least one todo item!");
        }
        return false;
    }

    function addForm(btn, prefix) {
        var formCount = parseInt($('#id_' + prefix + '-TOTAL_FORMS').val());
        // You can only submit a maximum of 10 todo items
        if (formCount < 51) {
            // Clone a form (without event handlers) from the first form
            var row = $(".item:first").clone(false).get(0);
            // Insert it after the last form
            $(row).removeAttr('id').hide().insertAfter(".item:last").slideDown(300);

            // Remove the bits we don't want in the new row/form
            // e.g. error messages
            $(".errorlist", row).remove();
            $(row).children().removeClass("error");

            // Relabel or rename all the relevant bits
            $(row).children().children().each(function () {
                updateElementIndex(this, prefix, formCount);
                $(this).val("");
            });
            // Add an event handler for the delete item/form link
            $(row).find(".delete").click(function () {
                return deleteForm(this, prefix);
            });
            // Update the total form count
            $("#id_" + prefix + "-TOTAL_FORMS").val(formCount + 1);
        } // End if
        else {
            alert("Sorry, you can only enter a maximum of ten items.");
        }
        return false;
    }
    // Register the click event handlers
    $("#add").click(function () {
        return addForm(this, "form");
    });

    $(".delete").click(function () {
        return deleteForm(this, "form");
    });
});

有关如何处理此错误或从表单集中保存所有有效表单的正确方法的任何建议。

提前致谢

Answer 1

试试这个片段

function cloneMore(selector, type) {
    var newElement = $(selector).clone(true);
    var total = $('#id_' + type + '-TOTAL_FORMS').val();
    newElement.find(':input').each(function() {
        var name = $(this).attr('name').replace('-' + (total-1) + '-','-' + total + '-');
        var id = 'id_' + name;
        $(this).attr({'name': name, 'id': id}).val('').removeAttr('checked');
    });
    newElement.find('label').each(function() {
        var newFor = $(this).attr('for').replace('-' + (total-1) + '-','-' + total + '-');
        $(this).attr('for', newFor);
    });
    total++;
    $('#id_' + type + '-TOTAL_FORMS').val(total);
    $(selector).after(newElement);
}

从 Django 中的表单集中保存所有有效表单时出错

Error saving all valid forms from a formset in django

python

django

django-forms

django-views