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Python / Django-如何更改模板中顯示的信息？

[英]Python/ Django- How to change what information is displayed in a template?

 原文  2016-12-05 12:24:04  5   2    python/ html/ django/ view

問題描述

我正在處理一個用Python / Django編寫的項目，並且在其中一個網頁上，有一張表顯示有關數據庫中對象的一些信息。

該表顯示在“選項卡式內容”元素中，每個選項卡顯示一個不同的表。 每個表中顯示的信息會有所不同（即表具有不同的列），具體取決於它顯示的對象的類型。

我想從“選項卡式內容”元素的一個表中刪除列之一。

返回此網頁的URL的view定義為： 

def report_ccis(request, project_id):
    """ CCI items styled for pdf """
    print "report_ccis() called in costing.views (1463) "
    project = Project.objects.get(id=project_id)
    budget = get_current_budget(project_id)

    cci_total_exc = budget.cci_total_exc_vat_final
    cci_grouped_items = budget.cci_items.all().order_by('project_room', 'name')

    context = {
        'project': project,
        'cci_total_exc': cci_total_exc,
        'cci_grouped_items': cci_grouped_items,
        'webview': 1,
    }

    try: context['current_budget'] = project.budget_versions.get(current_marker=1) #For option name/date on top of pdfs
    except ObjectDoesNotExist: pass

    if request.GET.get('stage') == 'pd':
        print "request.GET('stage') == 'pd' "
        """ Render post deposit homepage """
        context['html'] = render_to_string('costing/report2_ccis.html', context)
        print "'render_to_sting() called with parameter: costing/report2_ccis.html "
        context['active_tab'] = '4'
        print "render() called with parameter: costing/reports_post_deposit.html "
        return render(request, 'costing/reports_post_deposit.html', context)
    else:
        print "request.GET('stage') != 'pd' "
        """ Render pre deposit homepage """
        context['html'] = render_to_string('costing/report_ccis.html', context)
        print "'render_to_sting() called with parameter: costing/report_ccis.html "
        context['active_tab'] = '5'
        print "render() called with parameter: costing/reports_pre_deposit.html "
        return render(request, 'costing/reports_pre_deposit.html', context)

該view根據所request的類型返回“ reports_post_deposit.html”或“ reports_pre_deposit.html”，並且當前在兩個頁面上的“選項卡式內容”區域中均顯示一個表，其中“項”的列標題為”，“初始總和”，“最新總和”和“注釋”。

我想做的是從“ reports_pre_deposit.html”頁面上的表中刪除“最新總和”列，但是我不確定如何在Python / Django中做到這一點，我會通過更改Django HTML來做到這一點嗎？文件，還是通過更改Python view ？

傳遞給render_to_string()的report_ccis.html文件為： 

{% extends "pdf2_base.html" %} 
{% load money_handling %}
{% block web_content %}

{% block content_overview %}
{% endblock content_overview %}
{% block content_construction %}
{% endblock content_construction %}
{% block content_schedule_of_works %}
{% endblock content_schedule_of_works %}
{% block content_report_by_class %}
{% endblock content_report_by_class %}
{% block content_ccis %}
    {{block.super}}
{% endblock content_ccis %}

{% block content_payment_schedule %}
{% endblock content_payment_schedule %}
{% block agreed_variations %}
{% endblock agreed_variations %}
{% block agreed_variations_client %}
{% endblock agreed_variations_client %}
{% block agreed_variations_construction %}
{% endblock agreed_variations_construction %}
{% block unagreed_variations %}
{% endblock unagreed_variations %}
{% endblock web_content %}

編輯我修改了HTML，以包含新的塊，如下所示： 

{% extends "pdf2_base.html" %} {#ERF(02/12/2016 @ 1150) Change from 'pdf_base.html - to ensure it displays all relevant variables. ' #}
{% load money_handling %}
{% block web_content %}

{% block content_overview %}
{% endblock content_overview %}
{% block content_construction %}
{% endblock content_construction %}
{% block content_schedule_of_works %}
{% endblock content_schedule_of_works %}
{% block content_report_by_class %}
{% endblock content_report_by_class %}
{% block content_ccis %}
    {{block.super}}
{% endblock content_ccis %}
{# Set the block to content_ccis_pre_deposit) #}
{% block content_ccis_pre_deposit %}
    {{block.super}}
{% endblock content_ccis_pre_deposit %}
{# Add details that are displayed in report2_ccis.html here too #}
{% block content_payment_schedule %}
{% endblock content_payment_schedule %}
{% block agreed_variations %}
{% endblock agreed_variations %}
{% block agreed_variations_client %}
{% endblock agreed_variations_client %}
{% block agreed_variations_construction %}
{% endblock agreed_variations_construction %}
{% block unagreed_variations %}
{% endblock unagreed_variations %}
{% endblock web_content %}

但是，當我現在嘗試在瀏覽器中顯示頁面時，出現一條錯誤消息：

/ costing / 5547 / report / ccis /處的TemplateSyntaxError

並突出顯示以下行： 

context['html'] = render_to_string('costing/report_ccis.html', context)

作為問題...我不確定為什么會引起問題？

結束編輯

我要刪除的列將通過以下行顯示： 

{% block content_ccis %}
    {{block.super}}
{% endblock content_ccis %}

但這也是將顯示其余列的內容，我想保留...

reports_pre_deposit.html文件本身定義為： 

{% extends "costing/reports_tabbed.html" %}
{% load staticfiles utilities %}

{% block title2 %}
    | Pre-deposit reports
{% endblock title2 %}

{% block page_title %}
    <a id="topbar-shortcuts" data-view-url="{% url 'hub:open_sidebar' %}?app={{app.name}}&p={{project.id}}&po=1">
        <span class="m-l-md">Reports</span> <img class="icon open text-sm m-l-md" src="{% static 'img/down-lt.png' %}" >
    </a>
    <div id="topbar-results" class="{{app.color}}" style="display:none;"></div>
{% endblock page_title %}


{% block tabs %}
    {% with 'Overview, Construction budget, Schedule of works, Client choice items'|listify as tabs %}
        {% for tab_name in tabs %}
            {% with forloop.counter as tab %}
                {% if not tab == active_tab|add:0 %}<a class="tab" href="{% url 'costing:report_tabbed' project.id %}?tab={{tab}}">{% else %}<a class="active tab">{% endif %}{{tab_name}}</a>
            {% endwith %}
        {% endfor %}
    {% endwith %}
{% endblock tabs %}

如何從{{block.super}}行中刪除該列...？ 還是需要從呈現此HTML的view或HTML文件本身中將其刪除？

我嘗試查看了要在report_ccis(..)視圖中傳遞給context變量的參數，但這些參數似乎都沒有設置表中顯示哪些列。

誰能指出如何/在何處更改顯示的列？

編輯

該block從pdf2_base.html該HTML文件extend ，其中顯示的表是： 

{% block content_ccis %}
    {% if not webview %}
        <table>
            <tr>
                <td>
                    <a class="plain-link" href="{% url 'costing:home' project.id %}">Client Choice Items - please refer to 'Budget Explained'   </a>
                </td>
                <td rowspan="2" style="text-align: right;">

                </td>
            </tr>
            <tr>
                <td>
                    <span class="project-name">{{project.project_name|upper}}</span>
                </td>
            </tr>
        </table>

    {% endif %}

    <table class="pdf-report left">
        <thead>
            <tr>
                <th colspan="3" style="width:400px;">Items</th>
                <th>Initial sum (£)</th>
                <th>Latest sum (£)</th>
                <th colspan="3">Notes</th>
            </tr>
        </thead>
        <tbody>
            {% for item in cci_grouped_items %}
                {% ifchanged item.project_room %}
                    <tr class="sub-summary">
                            <td>{{item.project_room}}</td>
                            <td></td>
                            <td colspan="6"></td>
                    </tr>
                {% endifchanged %}
                <tr style="padding:0.1cm;">
                    <td  colspan="3" style="width:400px;">&nbsp;&nbsp;&nbsp;&nbsp;{{item.name}}</td>
                    <td>{{item.initial_cost|money}}</td>
                    <td {% if item.final_cost == item.initial_cost %}style="color:blue;"{% endif %}>{{item.final_cost|money}}</td>
                    <td colspan="3">{{item.notes|xor}}</td>
                </tr>
            {% endfor %}

            <tr class="end-table-section">
                <td colspan="8"></td>
            </tr>
            <tr class="last-row">
                <td colspan="3"></td>
                <td>Total excluding VAT</td>
                <td>{{cci_total_exc|money:'£'}}</td>
                <td colspan="3"></td>
            </tr>
        </tbody>
    </table>
    <p>To help you understand the rationale behind these items, please refer to booklet 'Budget explained'. </p>
{% endblock content_ccis %}

如果我用<!--th>Latest sum (£)</th-->注釋“最新總和”表標題，則顯然會從表中刪除該標題，但是我不確定如何刪除這些值在該列中顯示-並且最終僅將“注釋”列的標題向左移動，因此該列現在位於“最新總和”值的上方，並且“注釋”列不再具有標題。

有沒有一種方法可以使該條件取決於表是顯示pre-deposit數字還是post-deposit數字，還是我需要針對每種情況編寫單獨的HTML塊？

編輯

(% block content_ccis %}部分現在看起來像這樣： 

{% block content_ccis %}
    {% if not webview %}
        <table>
            <tr>
                <td>
                    <a class="plain-link" href="{% url 'costing:home' project.id %}">Client Choice Items - please refer to 'Budget Explained'   </a>
                </td>
                <td rowspan="2" style="text-align: right;">

                </td>
            </tr>
            <tr>
                <td>
                    <span class="project-name">{{project.project_name|upper}}</span>
                </td>
            </tr>
        </table>

    {% endif %}

    <table class="pdf-report left">
        <thead>
            <tr>
                <th colspan="3" style="width:400px;">Items</th>
                <th>Initial sum (£)</th>
                {% if post_deposit %}
                <th>Latest sum (£)</th>
                {% endif %}
                <th colspan="3">Notes</th>
            </tr>
        </thead>
        <tbody>
            {% for item in cci_grouped_items %}
                {% ifchanged item.project_room %}
                    <tr class="sub-summary">
                            <td>{{item.project_room}}</td>
                            <td></td>
                            <td colspan="6"></td>
                    </tr>
                {% endifchanged %}
                <tr style="padding:0.1cm;">
                    <td  colspan="3" style="width:400px;">&nbsp;&nbsp;&nbsp;&nbsp;{{item.name}}</td>
                    <td>{{item.initial_cost|money}}</td>
                    {% if post_deposit %}
                        <td {% if item.final_cost == item.initial_cost %}style="color:blue;"{% endif %}>{{item.final_cost|money}}</td>
                    {% endif %}
                    <td colspan="3">{{item.notes|xor}}</td>
                </tr>
            {% endfor %}

            <tr class="end-table-section">
                <td colspan="8"></td>
            </tr>
            <tr class="last-row">
                <td colspan="3"></td>
                <td>Total excluding VAT</td>
                {% if post_deposit %}
                    <td>{{cci_total_exc|money:'£'}}</td>
                {% endif %}
                <td colspan="3"></td>
            </tr>
        </tbody>
    </table>
    <p>To help you understand the rationale behind these items, please refer to booklet 'Budget explained'. </p>
{% endblock content_ccis %}

更新后的視圖是： 

def report_ccis(request, project_id):
    """ CCI items styled for pdf """
    project = Project.objects.get(id=project_id)
    budget = get_current_budget(project_id)

    cci_total_exc = budget.cci_total_exc_vat_final
    cci_grouped_items = budget.cci_items.all().order_by('project_room', 'name')

    context = {
        'project': project,
        'cci_total_exc': cci_total_exc,
        'cci_grouped_items': cci_grouped_items,
        'webview': 1,
    }

    try: context['current_budget'] = project.budget_versions.get(current_marker=1) #For option name/date on top of pdfs
    except ObjectDoesNotExist: pass

    if request.GET.get('stage') == 'pd':
        """ Render post deposit homepage """

        context['post_deposit'] = True

        print "request.GET('stage') == 'pd' "
        context['html'] = render_to_string('costing/report2_ccis.html', context)
        context['active_tab'] = '4'
        return render(request, 'costing/reports_post_deposit.html', context)
    else:
        """ Render pre deposit homepage """
        print "request.GET('stage') != 'pd' "
        context['html'] = render_to_string('costing/report_ccis.html', context)
        context['post_deposit'] = True
        context['active_tab'] = '5'
        return render(request, 'costing/reports_pre_deposit.html', context)

2 個解決方案

解決方案1
 1  2016-12-05 12:47:25

{{block.super}}表示父模板的塊內容。 因為您的案例的父模板是“ pdf2_base.html”，所以我想您可以在“ pdf2_base.html”模板中找到必填列。

更新如果您需要更改要顯示的塊，則可以添加上下文變量“ post_deposit”： 

if request.GET.get('stage') == 'pd':
    print "request.GET('stage') == 'pd' "
    """ Render post deposit homepage """
    context['html'] = render_to_string('costing/report2_ccis.html', context)
    print "'render_to_sting() called with parameter: costing/report2_ccis.html "
    context['active_tab'] = '4'
    print "render() called with parameter: costing/reports_post_deposit.html "
    return render(request, 'costing/reports_post_deposit.html', context)
else:
    print "request.GET('stage') != 'pd' "
    """ Render pre deposit homepage """
    context['html'] = render_to_string('costing/report_ccis.html', context)
    context['post_deposit'] = True
    print "'render_to_sting() called with parameter: costing/report_ccis.html "
    context['active_tab'] = '5'
    print "render() called with parameter: costing/reports_pre_deposit.html "
    return render(request, 'costing/reports_pre_deposit.html', context)

在模板pdf2_base.html檢查post_deposit值並顯示必填列： 

...
{% if post_deposit %}
    <th>Latest sum (£)</th>
{% endif %}
...
{% if post_deposit %}
    <td {% if item.final_cost == item.initial_cost %}style="color:blue;"{% endif %}>{{item.final_cost|money}}</td> 
{% endif %}
...
{% if post_deposit %}
    <td>{{cci_total_exc|money:'£'}}</td>
{% endif %}
...

解決方案2
 0  2016-12-05 12:36:30

您可以發送一個上下文變量來決定是否渲染block.super

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