method
increment
v7.1.3.2 -
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Class: RedisCacheStore
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increment(name, amount = 1, options = nil)
public
Increment a cached integer value using the Redis incrby atomic operator. Returns the updated value.
If the key is unset or has expired, it will be set to amount:
cache.increment("foo") # => 1 cache.increment("bar", 100) # => 100
To set a specific value, call #write passing raw: true:
cache.write("baz", 5, raw: true) cache.increment("baz") # => 6
Incrementing a non-numeric value, or a value written without raw: true, will fail and return nil.
Failsafe: Raises errors.