python - get mongodb "_id" in django template -

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my question related this question.

i trying display _id of mongo database in django template last 2 days unable it.

this error:

error

this code trying:

views.py

register = template.library() port = 27019 client = mongoclient(port=port) mydb = client.catalogdb data = mydb.productcatalog    def index(request):    values = data.find()    @register.filter("mongo_id")    def mongo_id(value):       return str(value['_id'])    return render(request, 'product.html', {"values":values})

product.html

<ul class="row catalog-list">     {% value in values %}         <li class="col-xs-12 col-sm-6 col-md-4 col-lg-4">        <div>           <img src={{value.image_url_medium}}>           <label>             <input type="checkbox" name="sync-check" class="catalog-checkbox">           </label>         </div>         <div>           {% csrf_token %}           <h4 class="ellipsis-text catalog-item-name" tooltip={{value.name}}><span class="catalogproductid">{{value.name}}</span></h4>           {% load views %}           <h5 >product id: {{ object|mongo_id }}</h5>           <h5>category:{{value.catagory}}</h5>           <h5>best price: {{value.best_price}}</h5>           <h5>best price vendor: {{value.best_price_vendor}}</h5>           <h5 class="ellipsis-text">link:             <a href={{value.best_price_vendor_url}}>{{value.best_price_vendor_url}}</a>           </h5>         </div>     </li>     {% endfor %}     <h2 class="message">sorry no records found</h2> </ul>

though, tried changing name static, cache etc, still no luck.

template tag written in app/templatetag folder not in view of app.

https://docs.djangoproject.com/en/1.9/howto/custom-template-tags/


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