How to highlight searched queries in result page of Django template?

Question

I have the following search query in views.py:

class SearchView(View):
    def get(self, request, *args, **kwargs):
        queryset = BlogPost.         


        

Answer 1

You can also use a function from django-haystack but you will need to configure the simple backend on your settings:

pipenv install django-haystack

Your settings.py

INSTALLED_APPS = (
   'haystack'
)

HAYSTACK_CONNECTIONS = {
    'default': {
        'ENGINE': 'haystack.backends.simple_backend.SimpleEngine',
    },
}

Create a new template filter:

@register.filter
def highlight_search(text, search):
    from haystack.utils.highlighting import Highlighter
    highlight = Highlighter(search, html_tag='strong', css_class='highlighted', max_length=400)

    return highlight.highlight(text)

Your template will look something like this:

{{ result.htmldata|highlight_search:myquery|safe  }}

The built-in safe will render the html_tag that you choose on your implementation.

More info: https://django-haystack.readthedocs.io/en/master/highlighting.html