Prolog
======
`Django-context-cache` extends the Django framework with a context cache that caches data per request or per decorated block.
Installation
------------
- Install `django-context-cache` with the `pip` command:
```bash
pip install django-context-cache
```
- Add `'context_cache.middleware.ContextCacheMiddleware'` to your `MIDDLEWARE`:
```python
MIDDLEWARE = [
'context_cache.middleware.ContextCacheMiddleware',
...
]
```
Usage
-----
Imagine having an function or method which result you want to cache per request:
import random
import string
from context_cache.decorators import cache_for_context
@cache_for_context
def get_random_string():
letters = string.ascii_lowercase
return ''.join(random.choice(letters) for i in range(10))
If you call function get_random_string more times the value will be get from cache:
def view(request):
get_random_string() == get_random_string() # should return True
If you want to cache an function out of requests, for example in the django command you can use the decorator `init_context_cache`. The decorator can be used as a context processor too:
from django.core.management.base import BaseCommand, CommandError
from context_cache.decorators import init_context_cache
class Command(BaseCommand):
@init_context_cache
def handle(self, *args, **options):
get_random_string() == get_random_string() # should return True
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