Django cycle Tag
Cycles
The cycle tag allows you to do different tasks for different iterations.
The cycle tag takes arguments, the first
iteration uses the first argument, the second iteration uses the second argument
etc.
{% cycle 'lightblue' 'pink' 'yellow' 'coral' 'grey' %}
If you want to have a new background color for each iteration, you can do
that with the cycle tag:
Example
<ul>
{% for x in members %}
<li style='background-color:{% cycle 'lightblue' 'pink' 'yellow' 'coral' 'grey' %}'>
{{ x.firstname }}
</li>
{% endfor %}
</ul> If the cycle reaches the end of the arguments, it starts over:
Example
<ul>
{% for x in members %}
<li style='background-color:{% cycle 'lightblue' 'pink' %}'>
{{ x.firstname }}
</li>
{% endfor %}
</ul> Cycle Arguments as Variable
In the first example the argument values were displayed directly in the cycle, but you can also keep the argument values in a variable, and use it later:
Example
Store the color values in a variable named bgcolor, and use it as a background color later in the loop:
<ul>
{% for x in members %}
{% cycle 'lightblue' 'pink' 'yellow' 'coral' 'grey' as bgcolor silent %}
<li style='background-color:{{ bgcolor }}'>
{{ x.firstname }}
</li>
{% endfor %}
</ul> Did you notice the silent
keyword? Make sure you add this, or else the argument values will be displayed twice
in the output:
Example
Same example as above, but without the silent keyword:
<ul>
{% for x in members %}
{% cycle 'lightblue' 'pink' 'yellow' 'coral' 'grey' as bgcolor %}
<li style='background-color:{{ bgcolor }}'>
{{ x.firstname }}
</li>
{% endfor %}
</ul> Reset Cycle
You can force the cycle to restart by using the {% resetcycle %} tag:
Example
Restart the cycle after 3 cycles:
<ul>
{% for x in members %}
{% cycle 'lightblue' 'pink' 'yellow' 'coral' 'grey' as bgcolor silent %}
{% if forloop.counter == 3 %}
{% resetcycle %}
{% endif %}
<li style='background-color:{{ bgcolor }}'>
{{ x.firstname }}
</li>
{% endfor %}
</ul> 
