django-cacheable-model 1.0.1b0

A cacheable Django model

django cacheable model

A cacheable model for django.

• A generic way of creating cache keys from Django model fields
• Retrieve django models from cache with field values (cache on the way if cache missed)
• Retrieve all the model instances (suitable for small set of models)

See usage example below

1. Github

https://github.com/harisankar-krishna-swamy/django_cacheable_model

2. Install

pip install django_cacheable_model

3. Usage

See samples in example_django_project views.py and models.py.

3.1. Create a model that inherits from CacheableModel

class Question(CacheableModel):
    question_text = models.CharField(max_length=200)
    pub_date = models.DateTimeField('date published')


class Choice(CacheableModel):
    question = models.ForeignKey(Question, on_delete=models.CASCADE)
    choice_text = models.CharField(max_length=200)
    votes = models.IntegerField(default=0)

3.2. Use cache operations from django_cacheable_model.utils

from django_cacheable_model.utils import all_ins_from_cache, model_ins_from_cache

# Get all instances of model from cache (use for smaller set of models)
context['choices'] = all_ins_from_cache(Choice)

# Get all instances with select_related and order_by
choices = all_ins_from_cache(Choice,
                             select_related=('question',),
                             order_by_fields=('-id',))

# Get a single model
context['choice'] = model_ins_from_cache(Choice, {'id': 5})[-1]

4. To do

a) Add more tests
b) Document use of prefetch_related

5. License

Apache2 License