How to use redis to implement caching in odoo

Using Redis as a cache implementation can improve the performance of the Odoo system and reduce frequent database queries. The following are the steps to use Redis to implement Odoo caching:

1. Install Redis

First you need to install the Redis database. You can refer to the official documentation for installation.

2. Install the Python Redis module

To use Redis in Odoo, you need to install the Python Redis module. You can use the pip command to install

pip install redis

3. Configure Odoo

Add the following lines in the Odoo configuration file:

redis_host = your_redis_host
redis_port = your_redis_port
redis_db = your_redis_db

These configuration items need to be modified according to the actual situation.

4. Write caching logic

Where caching is required, you can use the following code to store the results in Redis:

import redis
 
redis_client = redis.Redis(host=config['redis_host'], port=config['redis_port'], db=config['redis_db'])
cache_key = 'my_cache_key'
cache_value = 'my_cache_value'
redis_client.set(cache_key, cache_value, ex=3600)

This code converts a key-value pair Store it in Redis and set the expiration time to 3600 seconds.

Where you need to get cached data, you can use the following code to get data from Redis:

import redis
 
redis_client = redis.Redis(host=config['redis_host'], port=config['redis_port'], db=config['redis_db'])
cache_key = 'my_cache_key'
cache_value = redis_client.get(cache_key)

This code will get the value with the key "my_cache_key" from Redis and put it Assigned to the variable cache_value.

It should be noted that if the cache value obtained is None, the data needs to be obtained from the database and stored in Redis, so that the data can be obtained directly from the cache the next time it is obtained.

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