mn-48 / django-customtags-filters

django-customtags-filters

{{ }} -------> filter

{% %} -------> tag

Step for Custom filter

-->1:
   create project
   -->2:
       create app
           # views.py
           from django.shortcuts import render

           # Create your views here.
           def HomeView(request):
               return render(request, 'home.html', context={'data':'amaer deshe hobe sei cele kobe j kothai na boro hoye kaje boro hobe.', 't':20,})

   -->3:
       create templatetags dir inside app dir

       -->4: 
           create myFilters.py

               from  django import template
               register = template.Library()
               def cutlast(value, elements):
                   return value[:len(value) - elements] + "Nazmul Hossain"
               register.filter("myCut", cutlast)
               # myCut is my customtag which will be used in template


       -->5: templates

           {% load myFilters %} 
           <h1>Hello home</h1>
           {{ data|truncatechars:10|upper }}
           <br>
           {{ data|myCut:t}}

       

Custom simple_tag/ customtag

add multiple arguments to my custom template filter using simple_tag

# myFilters.py
from django import template
register = template.Library()

@register.simple_tag
def multiple_args_tag(a, b, c, d):
   #do your stuff
   return 

In Template:

{% multiple_args_tag 'arg1' 'arg2' 'arg3' 'arg4' %}