How to change tastypie time format

问题

I'm writing an API server using Django 1.4.2 and Tastypie 0.9.11.

For all the datetime output, I'm using the default iso 8601 format, for example: "2012-11-20T02:48:19+00:00". But I want to get a "2012-11-20T02:48:19Z" format. How to do it easily without customizing each datetime field?

回答1:

Formatting a date is probably best done in the templates. However, Tastypie allows you to add or modify fields returned by the API using the dehydrate cycle. For example:

# models.py
class MyModel(models.Model):
    iso8601_date = models.DateTimeField()

    class Meta:
        verbose_name = 'my_model'

# api.py
class MyResource(ModelResource):
    class Meta:
        queryset = MyModel.objects.all()

    def dehydrate(self, bundle):
        # Your original field: bundle.data['iso8601_date']

        # Newly formatted field.
        bundle.data['new_date_format'] = '2012-11-20T02:48:19Z'
        return bundle

Now, if you make the HTTP request, you should see a new line for "new_date_format".

回答2:

There is a configuration called TASTYPIE_DATETIME_FORMATTING in this page http://django-tastypie.readthedocs.org/en/latest/serialization.html. However, this gives you limited options(iso-8601 & rfc-2822).

What you could do is use a custom Serializer for your resource like

# models.py
class MyModel(models.Model):
    class Meta:
        verbose_name = 'my_model'

# api.py
from custom_serializer import MySerializer
class MyResource(ModelResource):
    class Meta:
        queryset = MyModel.objects.all()
        serializer = MySerializer()

#custom_serializer.py
from tastypie.serializers import Serializer
class MySerializer(Serializer):
    def format_datetime(self, data):
        return data.strftime("%Y-%m-%dT%H:%M:%SZ")

This has been detailed here - http://django-tastypie.readthedocs.org/en/latest/serialization.html

来源：https://stackoverflow.com/questions/13539901/how-to-change-tastypie-time-format

标签

django

tastypie