Question

任何人都可以帮助我，我在django中制作一个CRUD，我想设置Edit部分的表单字段，其中包含我正在选择的项目的实际数据。谁能告诉我怎么能这样做呢。

forms.py

class editProductForm(forms.ModelForm):
    class Meta:
        model = Product
        exclude = ('object_id', 'slugp', 'category', 'add_date')

views.py

def product_update(request, object_id):
    product = Product.objects.get(pk=object_id)
    category = product.category
    info_send = False

    if request.method == "POST":
        form = editProductForm(request.POST, request.FILES)

        if form.is_valid():
            name = form.cleaned_data['name']
            description = form.cleaned_data['description']
            price = form.cleaned_data['price']
            stock = form.cleaned_data['stock']
            image = form.cleaned_data['image']
            manufacturer = form.cleaned_data['manufacturer']

            product.name = name
            product.description = description
            product.price = price
            product.stock = stock
            product.image = image
            product.manufacturer = manufacturer
            product.save()
            info = "Updated"
            info_send = True

        else:
            info = "ERROR updating"

        return HttpResponseRedirect('/catalog/'+category+'/product/')
    else:
        form = editProductForm()
        ctx = {'form':form}
        return render_to_response('dashboard/edit_product.html', ctx, context_instance=RequestContext(request))

edit_product.html

{% extends "base.html" %}
{% load i18n %}

{% load bootstrap %}

{% block title %}Product {{product.name}}{% endblock %}

{% block content %}
<div class="container">
<div class="row text-center">
    <div class="alert alert-info">
        <h4>Here you can edit items</h4>
    </div>

</div>
<div class="row">
    <div class="col-md-12">
        <div class="form-container">
            <form id="edit_product_form" action="." method="POST" class="form" enctype="multipart/form-data" >
                {% csrf_token %}
                {{ form|bootstrap }}
                <input id="btnSaveProduct" class="btn btn-primary" type="submit" value="Save">
                <input class="btn btn-warning" type="reset" value="Clean">
            </form>
        </div>
    </div>
</div>
</div>
{% endblock %}

谢谢如果有人可以告诉我如何设置表单字段，那么所选项目的实际数据请帮帮我！

Answer 1

您需要instance option in the ModelForm

一些事情：

使用get_object_or_404
将instance=传递给初始化，并POST：editProductForm(instance=product)和editProductForm(request.POST, request.FILES, instance=product)
请注意return语句的缩进。
从词典访问密钥时，使用[]代替.get()。

试试这个：

def product_update(request, object_id):

    product = get_object_or_404(Product, pk=object_id)
    category = product.category
    info_send = False

    if request.method == "POST":
        form = editProductForm(request.POST, request.FILES, instance=product)

        if form.is_valid():
            cd = form.cleaned_data
            name = cd.get('name') #user get() instead of []
            description = form.cleaned_data['description']
            price = form.cleaned_data['price']
            stock = form.cleaned_data['stock']
            image = form.cleaned_data['image']
            manufacturer = form.cleaned_data['manufacturer']

            product.name = cd.get('name') #user get() instead of []
            product.description = description
            product.price = price
            product.stock = stock
            product.image = image
            product.manufacturer = manufacturer
            product.save()

            info = "Updated"
            info_send = True

            return HttpResponseRedirect('/catalog/'+category+'/product/')
        else:
            print form.errors
            info = "ERROR updating"

    else:
        form = editProductForm(instance=product)
        ctx = {'form':form}
    return render_to_response('dashboard/edit_product.html', ctx, context_instance=RequestContext(request))

Answer 2

如果我理解您的问题，您可能希望在模板中显示：

<table>
    {% for field in form %}
        <tr>
            <td>
                {{ field.label_tag }}
            </td>
            <td>
                {{ field.value }}
            </td>
        </tr>
    {% endfor %}
</table>

这将为您的所有字段显示该字段的当前值。

将值设置为django中的表单

2 个答案: