如何在一个模板中插入多个Django块? [英] How to insert multiple Django blocks into one template?
问题描述
我试图通过不同的块或包含方法在一个模板中使用更多不同的视图，但是我陷入了困境.我的目标是将我的不同观点整合到一个模板中.我尝试了更多解决方案，但这些方法对我没有用.我展示了这些解决方案:
我的观点:
def console_data(request):#在这里，我从PostgreSQL数据库中收集数据，然后将它们压入#Objects，然后通过如下所示的渲染将其发送到我的test_a.html.返回渲染(请求，'my_project/test_a.html'，send_data)def chart_data(request):#在这些视图中，我的最终目标是从数据库收集数据并创建#charts，但为简单起见，我只使用一个列表(a = [1,2,3,4])，而我#将其推入test_b.html，然后进行渲染.渲染(请求，'my_project/test_b.html'，send_data)) 我的模板:
1，base.html
<！DOCTYPE html>< html lang ="zh-CN">< head>{％block title％}< title>我的项目</title> {％endblock％}< meta charset ="utf-8">< meta name ="viewport" content ="width = device-width，initial-scale = 1"><！-包含CSS文件->{％静态负载％}<！-包含CSS文件->< link rel ="stylesheet" href ="{％static'css/bootstrap.css'％}">< link rel ="stylesheet" href ="{％static'css/bootstrap.min.css'％}">< link rel ="stylesheet" href ="{％static'css/bootstrap-table.css'％}">< link rel ="stylesheet" href ="{％static'css/styles.css'％}">< link rel ="stylesheet" href ="{％static'css/font-awesome.min.css'％}"></head><身体>{％block sidebar％}{％endblock％}{％封锁内容％}{％endblock％}</body></html> 1，test_a.html
{％扩展了"monitor/base.html"％}{％block content％}{％for表中的我％}< p>{{i.record}}</p>{％endfor％}{％endblock} 2，测试b.html
{％for i in a％}< p>{{i}}</p>{％endfor} 所以我的目标是将test_b.html的结果显示在base.html中.
我的解决方案:
A :我试图将test_b.html放到一个块中并集成到base.html中.
1，base.html(test1):
{％block conent％}{％endblock％}{％方块图％}{％endblock％} 1，test_b.html(test1):
{％扩展了"monitor/base.html"％}{％block chart％}{％for a in％}< p>{{i}}</p>{％endfor}{％endblock％} B :我尝试使用 {{block.super}}
1，base.html(test1):
{％block conent％}{％endblock％} 1，test_b.html(test1):
{％扩展了"monitor/base.html"％}{％block content％}{{block.super}}{％for a in％}< p>{{i}}</p>{％endfor}{％endblock％} C:最后，我也使用了include方法，但我也没有为我工作.在这里，我尝试在test_b.html中使用简单的html标记(例如(< p> Hello world</p> ))进行工作.因此，如果我不使用变量，则可以使用，但是必须从我的视图中使用变量.
1，test_a.html
{％扩展了"monitor/base.html"％}{％block chart％}{％for a in％}< p>{{i}}</p>{％endfor}{％endblock％}{％包括"my_project/test_b.html"％} 2，test_b.html
{％for i in a％}< p>{{i}}</p>{％endfor％} 如@ alessioferri20所述，您不能同时渲染2个视图.基本上，一个视图对应一个HTTP请求&响应.
您可以使用自定义模板标签来实现所需的目标: https://docs.djangoproject.com/en/2.0/howto/custom-template-tags/
但是我必须从视图中使用变量.
例如， chart_data 可以是一个包含标记( https://docs.djangoproject.com/en/2.0/howto/custom-template-tags/#inclusion-tags )，下面是一些伪代码:
假设您要从视图中显示 age_stats 的图表:
def your_view(request，...):age_stats = {...}....返回render(request，"template ..."，{'age_stats':age_stats}) 在您的模板中:
{％chart age_stats％} 在模板标签中:
@ register.inclusion_tag('path-to/chart.html')def图表(input_data):#从数据库中收集数据&使用来自您的视图的input_data数据= ...返回{'data':data} I am trying to use more different views in one template via different blocks or include method but I have got stuck. My aim is to implement my different views into one template. I tried to more solution but these haven't worked for me. I show these solution:
My views:
def dashboard_data(request):
# Here I collect data from my PostgreSQL database I push these into
#Objects and I send it to my test_a.html via render like below.
return render(request, 'my_project/test_a.html', send_data)
def chart_data(request):
#In these view my final goal is to collect data from database and create
#charts but for the simplicity I just use a list (a=[1,2,3,4]) and I
#push it to the test_b.html and I render it.
render(request, 'my_project/test_b.html', send_data))
My templates:
1, base.html
<!DOCTYPE html>
<html lang="en">
<head>
{% block title %}<title>My project</title>{% endblock %}
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- Include CSS files -->
{% load static %}
<!-- Include CSS files -->
<link rel="stylesheet" href="{% static 'css/bootstrap.css' %}">
<link rel="stylesheet" href="{% static 'css/bootstrap.min.css' %}">
<link rel="stylesheet" href="{% static 'css/bootstrap-table.css' %}">
<link rel="stylesheet" href="{% static 'css/styles.css' %}">
<link rel="stylesheet" href="{% static 'css/font-awesome.min.css' %}">
</head>
<body>
{% block sidebar %}
{% endblock %}
{% block content%}
{% endblock %}
</body>
</html>
1, test_a.html
{% extends "monitor/base.html" %}
{%block content%}
{%for i in table%}
<p> {{i.record}}</p>
{%endfor%}
{%endblock}
2, test b.html
{%for i in a%}
<p> {{i}}</p>
{%endfor}
So my goal would be that the test_b.html's result could appear in the base.html.
My solutions:
A: I tried to put into a block the test_b.html and integrate in the base.html
1, base.html (test1):
{% block conent%}
{% endblock %}
{% block chart%}
{% endblock %}
1, test_b.html (test1):
{% extends "monitor/base.html" %}
{%block chart%}
{%for i in a%}
<p> {{i}}</p>
{%endfor}
{%endblock%}
B: I tried to use {{ block.super }}
1, base.html (test1):
{% block conent%}
{% endblock %}
1, test_b.html (test1):
{% extends "monitor/base.html" %}
{%block content%}
{{ block.super }}
{%for i in a%}
<p> {{i}}</p>
{%endfor}
{%endblock%}
C: Finally I used include method too but I didn't work for me as well. Here I tried to use simple html tags like (<p>Hello world</p>) int the test_b.html and worked. So If I do not use variables it works but I have to use my variables from my views.
1, test_a.html
{% extends "monitor/base.html" %}
{%block chart%}
{%for i in a%}
<p> {{i}}</p>
{%endfor}
{%endblock%}
{% include "my_project/test_b.html" %}
2, test_b.html
{%for i in a%}
<p> {{i}}</p>
{% endfor %}
As @alessioferri20 mentioned, you cannot render 2 views at the same time. Basically, one view corresponds to one HTTP request & response.
You can achieve what you want by using custom template tags: https://docs.djangoproject.com/en/2.0/howto/custom-template-tags/
but I have to use my variables from my views.
For example, chart_data could be an inclusion tag (https://docs.djangoproject.com/en/2.0/howto/custom-template-tags/#inclusion-tags), here is some pseudo-code:
Let's say you want to show a chart for the age_stats from your view:
def your_view(request, ...):
age_stats = {...}
....
return render(request, "template...", {'age_stats': age_stats})
In your template:
{% chart age_stats %}
In your template tags:
@register.inclusion_tag('path-to/chart.html')
def chart(input_data):
# collect data from database & use the input_data coming from your view
data = ...
return {'data': data}
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