[Django APP] django-next-prev

[소스]

source

[설치]

pip install django-next-prev


[사용법]

models.py 

from django.db import models

class Category(models.Model):

    title = models.CharField(max_length=100)

class Post(models.Model):

    title = models.CharField(max_length=100)

    category = models.ForeignKey(Category, on_delete=models.CASCADE)

    created = models.DateField()

    text = models.TextField()

    class Meta:

        ordering = ('created', 'title')

views.py

from next_prev import next_in_order, prev_in_order

from .models import Post

# default ordering

first = Post.objects.first()

second = next_in_order(first)

prev_in_order(second) == first # True

last = prev_in_order(first, loop=True)

# custom ordering

qs = Post.objects.all().order_by('-created')

newest = qs.first()

second_newest = next_in_order(newest, qs=qs)

oldest = prev_in_order(newest, qs=qs, loop=True)