how to get date after some specific number of days from given date in django template

Question

I am new in django. I want to get date after some specific number of days or number of weeks in html template file.

my template file code:

{% for factors in c.factor %}
    {% for factor_details in factors.factor_values %}
         {{factor_details.id}}
         {{factor_details.factor_value}}
            # here this is given date {{order_detail.oderdate}} and this is number of days and weeks {{factor_details.factor_value}}.

    {% endfor %}
{% endfor %}

order Model :

class Order(models.Model):
    user = models.ForeignKey(settings.AUTH_USER_MODEL, null=True, blank=True,on_delete=models.CASCADE)
    order_no = models.CharField(max_length=120, blank=True) # AB31DE3
    shipping_address = models.ForeignKey(Addresses, related_name="shipping_address",null=True, blank=True,on_delete=models.CASCADE)
    billing_address = models.ForeignKey(Addresses, related_name="billing_address",null=True, blank=True,on_delete=models.CASCADE)
    cart = models.ForeignKey(Cart,on_delete=models.CASCADE)
    shipping_total = models.DecimalField(default=0.00, max_digits=65, decimal_places=2)
    totalamount = models.DecimalField(default=0.00, max_digits=65, decimal_places=2)
    stripe_id = models.CharField(max_length=120, blank=True)
    payment_status = models.CharField(max_length=120, blank=True)
    oderdate = models.DateTimeField(auto_now_add=True)
    is_active = models.BooleanField(default=True)

factor Model :

class ProductPriceFactor(models.Model):
    factor_value = models.CharField(max_length=255)
    name = models.CharField(max_length=255)
    is_active = models.BooleanField(default=True)

orderdate and factor_values from different model so orderdate from order model and factor_value from ProductPriceFactor model. please help me.

ruddra · Accepted Answer · 2019-07-05T06:42:38.420

1

I am assuming factor_details is coming from a Model. Then you can add a method in model and render the value in template. For example:

import datetime

class FactorDetail(models.Model):
   ...

   def date_after_some_days(self):
       return self.oderdate + datetime.timedelta(days=self.factor_value)

Then render the value in template:

{% for factor_details in factors.factor_values %}
     {{ factor_details.id }}
     {{ factor_details.factor_value }}
     {{ factor_details.date_after_some_days }}
{% endfor %}

Update

above solution won't work here because you don't have any relation between orderdate and factor_value. Instead, you can create a template filter:

# template filter tag

@register.filter(name='factor_date')
def factor_date(value, arg):

    return value + datetime.timedelta(days=int(arg))

And update the template with filter:

{% for factor_details in factors.factor_values %}
     {{ factor_details.id }}
     {{ factor_details.factor_value }}
     {{ orderdetail.oderdate|factor_date:factor_details.factor_value }}
{% endfor %}

edited Jul 05 '19 at 06:42

answered Jul 05 '19 at 06:08

ruddra

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oderdate and factor_value both are from different table. @ruddra – Bhoomi Patel Jul 05 '19 at 06:18
can you share the models please? – ruddra Jul 05 '19 at 06:18
see i share models in my question – Bhoomi Patel Jul 05 '19 at 06:28
It is mentioned in documentation: https://docs.djangoproject.com/en/2.2/howto/custom-template-tags/#code-layout – ruddra Jul 05 '19 at 06:53
can we pass multiple arguments in `{{ orderdetail.oderdate|factor_date:factor_details.factor_value }}` ? – Bhoomi Patel Jul 05 '19 at 07:13
um, you can't send multiple arguments, but you can send a list. More details can be found here: https://stackoverflow.com/a/423060/2696165 – ruddra Jul 05 '19 at 08:19
i follow that link but it's not working for me@ruddra – Bhoomi Patel Jul 05 '19 at 09:27
Um, can you please ask a new question with what you have tried :) ? Because its hard to tell what is going on or why the code isn't working without seeing the actual code. – ruddra Jul 05 '19 at 09:54

how to get date after some specific number of days from given date in django template

1 Answers1

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