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what is {% block content %} and {% endblock content %} for in Django?

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没有蜡笔的小新
没有蜡笔的小新 2021-02-07 01:49

so I just started reading a book on Django (for beginners) and I came across the following code snipet:



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  • 抹茶落季
    2021-02-07 02:23

    block is used for overriding specific parts of a template.

    In your case, you have a block named content and this is supposed to be overridden by children that inherit from this template.

    From the examples at The Django Docs

    Template to be extended, named base.html

    <head>
    <link rel="stylesheet" href="style.css">
    <title>{% block title %}My amazing site{% endblock %}</title>
</head>

    Overriding Child template

    {% extends "base.html" %}

{% block title %}My amazing blog{% endblock %}

    "My amazing site" will be overriden by the child and then display "My amazing blog"

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  • 太阳男子
    2021-02-07 02:23

    That's where the power of the templates comes from in a sense.

    You can create a hierarchy of templates so start with base.html which might be like you've got above;

    <body>
    {% block content %}
    {% endblock content %}
</body>

    Then you can create any other template, home.html for example, and do something like;

    {% extends "base.html" %}

{% block content %}
    <h1>Welcome</h1>
    <p>This is the home page</p>
{% endblock content %}

    Then you'd reference home.html in django and it'd include the markup from base.py with the content defined in home.html.

    That's the basics, but if you put some templates together using blocks you'll pick it up.

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