Question

这是 NOT 只是另一个阅读Django复选框。我在这里阅读了7篇关于Checkbox的不同帖子以及Django文档中的其他4个页面。我的情况有点不同。我无法读取是否选中了特定的复选框。即使只选中了一个复选框，我也只为两个复选框获得一个值“True”。如果没有检查，它按预期工作。我真的需要使用MultipleChoiceField吗？

当前输出：

- John Doe Location A True   ===> Checked
 - James Smith Location A True    ===> Unchecked

理想情况下，我想要一个包含

的字典列表

data [0] = {'John', 'Doe', 1}
data [1] = {'John', 'Smith', 0}
...

其中'1'是覆盖的标志，'0'是忽略。

背景

用户提交表单
如果找到重复项，则第二个表单将显示以前的信息，并在名称旁边显示复选框。如果它们不重复，则不会显示任何复选框。
阅读复选框，处理并显示最终页面。

Checkbox Entry

forms.py

from django import forms
from django.forms.formsets import BaseFormSet

class NameForm (forms.Form):

    first_name = forms.CharField (max_length = 20, required = False)
    last_name = forms.CharField (max_length = 20, required = False)

class BaseNameFormSet (BaseFormSet):
...

class CheckBox (forms.Form):
    overwrite = forms.BooleanField (required = False)

views.py

def addname (request):
....

if request.method == 'POST':
    ....

    if formset.is_valid ():
        location = request.POST ['site']
        data = formset.cleaned_data

        # Store data into session to be used in another method
        request.session ['location'] = location
        request.session ['data'] = data


def process (request):

    location = request.session ['location']
    data = request.session ['data']

    if request.method == 'POST':
        form = CheckBox (request.POST)

        if form.is_valid ():
            overwrite = form.cleaned_data.get ('overwrite')

        # for duplicate in checkboxes:
        #    overwrite = duplicate.get ('overwrite')
        print (overwrite)

        context = {'data': data, 'location': location, 'overwrite': overwrite}
        return render (request, 'nodeform/success.html', context)

    return HttpResponse ('No Overwrite Data.')

response.html

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    {% load staticfiles %}
    <link rel="stylesheet" type="text/css" href="{% static 'nameform/style.css' %}" >
    <title>Submitted Entries</title>
</head>
<body>
    <h1>Submitted Entries:</h1>
    <h4>Location: {{ location }}</h4>
    <form action="process" method="POST">{% csrf_token %}
    <div id="tablefont">
    <table id="table01">
        <tr>
            <th>First Name</th>
            <th>Last Name</th>
            <th class="center">Overwrite</th>
        </tr>
        {% for info in data %}
        <tr>
            <td>{{ info.first_name }}</td>
            <td>{{ info.last_name }}</td>
            <td class="center"><input type="checkbox" name='overwrite-{{ forloop.counter0 }}'></td>  ===> Testing Checkbox
                <!--
                {% if info.overwrite %}
                <td class="center"><input type="checkbox" name='overwrite-{{ forloop.counter0 }}'></td>
                {% else %}
                <td class="center"></td>
                {% endif %}
                -->
        </tr>
        {% endfor %}
    </table>
    </div>
    <br>
    {% if errors %}
    <p class="errorlh">Error:
        <ul>
        {% for error in errors %}
            <li>{{ error }}</li>
        {% endfor %}
        </ul>
    </p>
    {% endif %}
    <br>
    <p><input type="submit" value="Confirm">
    <a href="{% url 'addname' %}">
        <button type="button">Cancel</button></a></p>
    </form>
</body>
</html>

success.html

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>Successfully Added</title>
</head>
<body>
    <h1>Information captured:</h1>
    <ul>
    {% for info in data %}
        <li>{{ info.first_name }} {{ info.last_name }} {{ location }} {{ overwrite }}</li>
    {% endfor %}
    </ul>
    <a href="{% url 'addname' %}">Add more names</a>
</body>
</html>

Answer 1

您的所有复选框输入都具有相同的属性name=overwrite，因此，当您选中一个时，它将是POST overwrite=true中提交的唯一一个。

您应该为每个输入指定一个唯一的名称。我建议你使用{{ forloop.counter0 }}，它将提供循环的当前迭代，从0开始。基本上它是“data”中当前“info”的索引。

{% for info in data %}
    <tr>
        <td>{{ info.first_name }}</td>
        <td>{{ info.last_name }}</td>
        <td class="center"><input type="checkbox" name='overwrite-{{ forloop.counter0 }}'></td>  ===> Testing Checkbox
            <!--
            {% if info.overwrite %}
            <td class="center"><input type="checkbox" name='overwrite' value="1"></td>
            {% else %}
            <td class="center"></td>
            {% endif %}
            -->
    </tr>
{% endfor %}

这样，您可以将POST中的表单字段与后端中的“info”进行匹配。

阅读Django中的Checkbox

1 个答案: