Remove Characters from String in Django Template
John on May 03, 2022
To remove characters from a string in a Django, create a custom template tag, which will run the Python .replace() method. Let's go through the steps to complete this.
Step 1 – Create templatetags Directory and Custom Tag File
The first step is to create a templatetags folder in your app (if there isn't one already there) then a .py file with an appropriate name for the function.
mkdir ./myapp/templatetags/
mkfile remove_substr.py
Step 2 – Create Remove Character Function
In the custom template tag file register the remove character function like this:
./myapp/templatetags/remove_substr.py
from django import template
register = template.Library()
@register.filter
def remove_substr(string, char):
return string.replace(char, '')
The remove_substr function takes a string and the character to remove and returns the string minus the specified char.
Step 3 – Use the Custom Filter in a Template
To use the custom filter in a template, load it then call it like this:
{% load remove_substr %}
{{ 'hello'|remove_substr:'o' }}
The string is passed before the custom filter using a pipe (|) and the character to remove after the filter using a colon (:).
