Question

我有一个Django项目，我的一个views呈现一个页面，显示一个表格，其中包含有关数据库中对象的信息。显示的对象根据view中确定的条件而有所不同。

if中使用view语句来确定要呈现的页面：

if request.GET.get('stage') == 'pd':        
    print "request.GET.get('stage') == 'pd' "
    print "render_to_string() called with parameter: costing/report2_ccis.html"
    context['html'] = render_to_string('costing/report2_ccis.html', context)
    context['active_tab'] = '4'

    if(project.deposit_received == True):
        print "costing/reports_post_deposit.html is the page being rendered (project.deposit_received = true)... "
        context['post_deposit'] = True
        print "context['post_deposit']: ", context['post_deposit']
        return render(request, 'costing/reports_post_deposit.html', context)
    elif(project.deposit_received == False):
        print "costing/reports_pre_deposit.html is the page being rendered (project.deposit_received = False)..."
        context['post_deposit'] = False
        print "context['post_deposit']: ", context['post_deposit']
        return render(request, 'costing/reports_pre_deposit.html', context)
else:
    print "request.GET.get('stage') != 'pd' "
    print "render_to_string() called with parameter: costing/report_ccis.html"
    context['html'] = render_to_string('costing/report_ccis.html', context)
    context['active_tab'] = '5'
    if(project.deposit_received == True):
        print "costing/reports_post_deposit.html is the page being rendered (project.deposit_received = true)..."
        context['post_deposit'] = True
        print "context['post_deposit']: ", context['post_deposit']
        return render(request, 'costing/reports_post_deposit.html', context)
    elif(project.deposit_received == False):
        print "costing/reports_pre_deposit.html is the page being rendered (project.deposit_received = false)..."
        context['post_deposit'] = False
        print "context['post_deposit']: ", context['post_deposit']
        return render(request, 'costing/reports_pre_deposit.html', context)

templates中返回的两个view都扩展了另一个名为reports_tabbed.html的模板，以及report_ccis.html＆amp;传递给report2_ccis.html的{{1}}模板同时render_to_string另一个名为extends的模板。

在pdf2_base.html中定义了在网页上显示信息的表格（无论哪一个传递给render_to_string - report_ccis.html或report2_ccis.html）：

pdf2_base.html

我想要做的是，当<table class="pdf-report left"> {% for payment_details in payments_details %} {% if forloop.first %} <thead> <tr> {% for detail in payment_details %} <th>{{ detail.0 }}</th> {% endfor %} <th></th> </tr> </thead> {% endif %} <tbody> {% if 0 %} <tr class="end-table-section"></tr> <td></td> <td></td> <td></td> <td></td> <td></td> <td></td> </tr> {% endif %} <tr {% if forloop.last %}class="end-table-section last-row"{% endif %}> {% for detail in payment_details %} <td {% if detail.0 == 'Gross payment (£)' %}class="payment-{{detail.2}}"{% endif %}> {% if detail.1 and detail.0 != 'Date paid' and detail.0 != 'Date' %} {% if detail.0 == 'VAT (£)' or detail.0 == 'Scheduled payment (£)' or detail.0 == 'Gross payment (£)' %} {{ detail.1|money }} {% else %} {{ detail.1 }} {% endif %} {% elif detail.1 %} {{ detail.1|date:'d-M' }} {% endif %} </td> {% endfor %} <td></td> </tr> {% if 0 %} <tr class="end-table-section"></tr> <td></td> <td></td> <td></td> <td></td> <td></td> <td></td> </tr> {% endif %} {% endfor %} <tr class="end-table-section"> <td>Gross payment now due:</td> <td>{{gross_payment_due|money:'£'}}</td> <td>Current contract sum</td> <td>Exc VAT {{ latest_total_exc|money:'£' }}</td> <td></td> <td>Bank</td> <td>Handelsbanken</td> </tr> <tr> <td></td> <td></td> <td>Total payments made</td> <td>Exc VAT {{total_paid_exc|money:'£'}}</td> <td></td> <td> acc</td> <td></td> </tr> <tr> <td></td> <td></td> <td>Outstanding contract sum</td> <td>Exc VAT {{outstanding_exc|money:'£'}}</td> <td>Inc VAT {{outstanding_inc|money:'£'}}</td> <td>Sort Code</td> <td></td> </tr> <tr class="last-row"> <td></td> <td></td> <td></td> <td></td> <td></td> <td colspan="2">Please ensure address is put as reference</td> </tr> </tbody> </table>条件中的if(project.deposit_received == False)条件显示时，更改模板中的此表，以便表格中的一列（'最新总和' ）表中没有显示......但是假设表生成了＆amp;使用Django view循环填充，因为它根据从数据库中检索到的信息动态更改，我不知道如何执行此操作...

有没有办法可以在Python或Django / HTML中明确告诉代码在满足特定条件时不显示表的某一列？

Answer 1

首先，您可以通过上下文向模板传递一些变量，并检查它是存款前还是后存款。

if(project.deposit_received == True):
    context['post_deposit'] = True
    return render(request, 'costing/reports_post_deposit.html', context)
elif(project.deposit_received == False):
    context['post_deposit'] = False
    return render(request, 'costing/reports_pre_deposit.html', context)

所以现在你需要在模板中检查这个值：

{% if post_deposit %}
    do_something
{% else %}
    do_something_else
{% endif %}

最后一个你可以使用forloop.counter检查模板中循环的当前迭代。例如，如果您需要删除post_deposit表中的第3列，您可以检查循环计数器是否等于3并跳过迭代：

{% for detail in payment_details %}
    {% if not post_deposit or forloop.counter != 3 %} 
        <th>{{ detail.0 }}</th>
    {% endif %}
{% endfor %}

Django网页 - 如何操纵表格中显示的信息

1 个答案: