Django：models.BooleanField(default=False) 總是將值保存為 1(True)

Question

我有一個 Boolean model 字段payment_received ，默認值設置為 False。 從前端下拉列表中，它以0或1形式出現。無論下拉列表 I select 中的值是什么，它始終在表中保存為 1(True)。 我正在嘗試對其進行調試，並且我可以驗證正確的值來自 HTML 表單，但是在通過 Django 表單完成清潔后，它始終會產生True值。

我的 Model

class InvoiceHeader(models.Model):
    class Meta:
        db_table = 'invoice_hdr'

    invoice_no = models.CharField(max_length=50)

    client = models.ForeignKey(Client, on_delete=models.DO_NOTHING)

    campaign = models.ForeignKey(CampaignHeader, on_delete=models.DO_NOTHING, null=True)

    invoice_date = models.DateField()

    invoice_amount = models.DecimalField(max_digits=11, decimal_places=2)

    cgst = models.DecimalField(max_digits=11, decimal_places=2)
    sgst = models.DecimalField(max_digits=11, decimal_places=2)
    igst = models.DecimalField(max_digits=11, decimal_places=2)

    total_amount = models.DecimalField(max_digits=11, decimal_places=2)

    payment_received = models.BooleanField(default=False)


    def __str__(self):
        return self.invoice_no

我的表格

class InvoiceHeaderForm(forms.ModelForm):
    class Meta:
        fields = ('invoice_no','invoice_date','campaign','client', 'invoice_amount','cgst','sgst','igst','total_amount','payment_received')

        model = InvoiceHeader

    
    invoice_no = forms.CharField(max_length=50)

    invoice_date = forms.DateField()

    client = forms.ModelChoiceField(queryset=Client.objects.all())

    campaign = forms.ModelChoiceField(queryset=CampaignHeader.objects.all())

    invoice_amount = forms.DecimalField(max_digits=11, decimal_places=2)
    cgst = forms.DecimalField(max_digits=11, decimal_places=2)
    igst = forms.DecimalField(max_digits=11, decimal_places=2)
    sgst = forms.DecimalField(max_digits=11, decimal_places=2)
    total_amount = forms.DecimalField(max_digits=11, decimal_places=2)

    payment_received = forms.BooleanField()

    def clean_payment_received(self):
        val = self.cleaned_data['payment_received']

        print('TEST1', val) #<---- always True
        return val


    def clean_invoice_no(self):
        invoice_no = self.cleaned_data.get('invoice_no')

        if InvoiceHeader.objects.filter(invoice_no=invoice_no).exists() and not str(self.instance):
            raise forms.ValidationError('Invoice no. already exist!')

        return invoice_no

模板

<form action="{{ url }}" method="POST" id="invoice_form">
            
            <input type="hidden" name="edit_mode" value="{% if invoice %}{{'1'}}{% else %}{{'0'}}{% endif %}">
            {% csrf_token %}
            <div class="card shadow py-2">
                <div class="card-body">

                    <div class="row ">
                        <div class="col-md-6">

                            <div class="form-group">
                                <label for="invoice_no">Invoice No.<sup class="text-danger">*</sup></label>
                                <input type="text" tabindex="1" class="form-control" id="invoice_no"
                                    name="invoice_no" placeholder="Enter campaign name"
                                    value="{% if invoice %}{{invoice.invoice_no}}{% endif %}">
                                <small class="error-msg form-text text-danger"></small>
                            </div>

                            <div class="form-group">
                                <label for="client">Client<sup class="text-danger">*</sup></label>
                                <select tabindex="3" class="form-control selectpicker" data-live-search="true"
                                    id="client" name="client">

                                    {% for client in clients %}
                                    <option data-state="{{client.state}}" id="client" value="{{ client.id }}"
                                        {% if invoice and invoice.client_id == client.id %}{{'selected'}}{% endif %}>
                                        {{ client }}</option>
                                    {% endfor %}
                                </select>
                                <small class="error-msg form-text text-danger"></small>
                            </div>

                            <div class="form-group">
                                <label for="invoice_amount">Invoice Amount<sup class="text-danger">*</sup></label>
                                <input type="text" data-type='currency' tabindex="5" class="form-control" id="invoice_amount"
                                    name="invoice_amount" placeholder="Enter invoice amount"
                                    value="{% if invoice %}{{invoice.invoice_amount}}{% endif %}">
                                <small class="error-msg form-text text-danger"></small>
                            </div>


                            <div class="form-group">
                                <label for="igst">IGST<sup class="text-danger">*</sup></label>
                                <input type="text" data-type='currency' tabindex="7" class="form-control" id="igst"
                                    name="igst" placeholder="Enter invoice amount"
                                    value="{% if invoice %}{{invoice.igst}}{% endif %}">
                                <small class="error-msg form-text text-danger"></small>
                            </div>

                            <div class="form-group">
                                <label for="payment_received">Payment Received?<sup class="text-danger">*</sup></label>
                                <select tabindex="9" class="form-control selectpicker" data-live-search="true"
                                    id="payment_received" name="payment_received">

                                    <option value="0" {% if invoice and not invoice.payment_received %}{{'selected'}}{% endif %}>NO</option>
                                    <option value="1" {% if invoice and invoice.payment_received %}{{'selected'}}{% endif %}>YES</option>
                                </select>
                                <small class="error-msg form-text text-danger"></small>
                            </div>

                        </div>

                        <div class="col-md-6">
                            <div class="form-group">
                                <label for="invoice_date">Invoice Date<sup class="text-danger">*</sup></label>
                                <input type="text" tabindex="2" class="form-control datepicker" id="invoice_date"
                                    name="invoice_date" placeholder="Enter invoice date"
                                    value="{% if invoice %}{{invoice.invoice_date|date:'d/m/Y'}}{% endif %}">
                                <small class="error-msg form-text text-danger"></small>
                            </div>


                            <div class="form-group">
                                <label for="campaign">Campaign<sup class="text-danger">*</sup></label>
                                <select tabindex="4" class="form-control selectpicker" data-live-search="true"
                                    id="campaign" name="campaign">

                                    {% if invoice %}
                                        {% for campaign in campaigns %}
                                            <option value="{{campaign.id}}"  {% if campaign == invoice.campaign %}{{'selected'}}{% endif %}>{{campaign}}</option>
                                        {% endfor %}
                                    {% endif %}

                                </select>
                                <small class="error-msg form-text text-danger"></small>
                            </div>

                            <div class="form-group">
                                <label for="cgst">CSGT<sup class="text-danger">*</sup></label>
                                <input type="text" data-type='currency' tabindex="6" class="form-control" id="cgst"
                                    name="cgst" placeholder="Enter invoice amount"
                                    value="{% if invoice %}{{invoice.cgst}}{% endif %}">
                                <small class="error-msg form-text text-danger"></small>
                            </div>


                            <div class="form-group">
                                <label for="sgst">SGST<sup class="text-danger">*</sup></label>
                                <input type="text" data-type='currency' tabindex="8" class="form-control" id="sgst"
                                    name="sgst" placeholder="Enter invoice amount"
                                    value="{% if invoice %}{{invoice.sgst}}{% endif %}">
                                <small class="error-msg form-text text-danger"></small>
                            </div>


                            <div class="form-group">
                                <label for="total_amount">Total Amount<sup class="text-danger">*</sup></label>
                                <input type="text" data-type='currency' tabindex="10" class="form-control" id="total_amount" readonly
                                    name="total_amount" placeholder="Enter invoice amount"
                                    value="{% if invoice %}{{invoice.total_amount}}{% endif %}">
                                <small class="error-msg form-text text-danger"></small>
                            </div>

                            

                        </div>

                    </div>

                </div>
            </div>

            <br>
            
        </form>

任何幫助，將不勝感激....

Answer 1

這可能有效（在 forms.py 中）。 您還可以知道您使用的是哪個 django 版本嗎？

[...]
    payment_received = forms.BooleanField(widget=CheckboxInput(default=False), required=False)
[...]

Answer 2

html 模板的“選定”值會將布爾字段呈現為 True。 因為通常 html 端的 booleanfield 是一個復選框，如果它被選中則為 True。