Django Template Tags
Template Tags
In Django templates, you can perform programming logic like executing if statements and for loops.
These keywords, if 和for, are called "template tags" in Django.
To execute template tags, we surround them in {% %} brackets.
例子
templates/template.html:
{% if greeting == 1 %}
<h1>Hello</h1>
{% else %}
<h1>Bye</h1>
{% endif %}
Django Code
The template tags are a way of telling Django that here comes something else than plain HTML.
The template tags allows us to to do some programming on the server before sending HTML to the client.
templates/template.html:
<ul>
{% for x in mymembers %}
<li>{{ x.firstname }}</li>
{% endfor %}
</ul>In the next chapters, you will learn about the most common template tags.
Tag Reference
A list of all template tags:
| Tag | Description |
|---|---|
| autoescape | Specify if autoescape mode is on or off |
| block | Specify a block section |
| comment | Specify a comment section |
| csrf_token | Protects forms from Cross Site Request Forgeries |
| cycle | Specifies content to use in each cycle of a loop |
| debug | Specifies debugging information |
| extends | Specifies a parent template |
| filter | Filters content before returning it |
| firstof | Returns the first not empty variable |
| for | Specify a for loop |
| if | Specifies an if statement |
| ifchanged | Used in for loops. Outputs a block only if a value has changed since the last iteration |
| include | Specifies included content/template |
| load | Loads template tags from another library |
| lorem | Outputs random text |
| now | Outputs the current date/time |
| regroup | Sorts an object by a group |
| resetcycle | Used in cycles. Resets the cycle |
| spaceless | Removes whitespace between HTML tags |
| templatetag | Outputs a specified template tag |
| url | Returns the absolute URL part of a URL |
| verbatim | Specify contents that should not be rendered by the template engine |
| widthratio | Calculates a width value based on the ratio between a given value and a max value |
| with | Specify a variable to use in the block |
