CODEWITHSUNDEEP
ruby-on-railsredis
cman77
cman77

Reputation: 1783

How to get a count of values in Redis?

I am playing around with storing simple Analytics data in Reds.

I'm starting out by storing simple pageview data for a blog post. I'm using the following model:

$redis.incr '2014:7:29:post:123:views'

So i'm storing 'YEAR:MONTH:DAY:ENTITY:ID:ACTION' as the key.

What is the best way to get back the value (sum?) of the keys for all Posts with ID 123?

Ultimately I'd like to be able to create a spark line for the # of views by Day for this Post.

I'm getting the feeling I am approaching this the wrong way.....

Upvotes: 0

Views: 2449

Answers (1)

ALittleDiff
ALittleDiff

Reputation: 1211

You can increase the count value by HINCRBY command rather than INCR, so that you can get all count values of the key by HGETALL command.

To increase the count value:

$redis.hincrby 'post:123:views' '2014:7:29' 1

To get all count values for the key:

$redis.hgetall 'post:123:views'

Upvotes: 1

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