Class: ActiveSupport::Cache::RedisStore

Inherits:
Store
  • Object
show all
Includes:
Redis::Store.rails3? ? Rails3 : Rails2
Defined in:
lib/active_support/cache/redis_store.rb

Instance Method Summary collapse

Instance Method Details

#clear ⇒ Object

Clear all the data from the store.



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# File 'lib/active_support/cache/redis_store.rb', line 217

def clear
  instrument(:clear, nil, nil) do
    @data.flushdb
  end
end

#decrement(key, amount = 1) ⇒ Object

Decrement a key in the store

If the key doesn’t exist it will be initialized on 0. If the key exist but it isn’t a Fixnum it will be initialized on 0.

Example:

We have two objects in cache:
  counter # => 23
  rabbit  # => #<Rabbit:0x5eee6c>

cache.decrement "counter"
cache.read "counter", :raw => true      # => "22"

cache.decrement "counter", 2
cache.read "counter", :raw => true      # => "20"

cache.decrement "a counter"
cache.read "a counter", :raw => true    # => "-1"

cache.decrement "rabbit"
cache.read "rabbit", :raw => true       # => "-1"



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# File 'lib/active_support/cache/redis_store.rb', line 210

def decrement(key, amount = 1)
  instrument(:decrement, key, :amount => amount) do
    @data.decrby key, amount
  end
end

#increment(key, amount = 1) ⇒ Object

Increment a key in the store.

If the key doesn’t exist it will be initialized on 0. If the key exist but it isn’t a Fixnum it will be initialized on 0.

Example:

We have two objects in cache:
  counter # => 23
  rabbit  # => #<Rabbit:0x5eee6c>

cache.increment "counter"
cache.read "counter", :raw => true      # => "24"

cache.increment "counter", 6
cache.read "counter", :raw => true      # => "30"

cache.increment "a counter"
cache.read "a counter", :raw => true    # => "1"

cache.increment "rabbit"
cache.read "rabbit", :raw => true       # => "1"



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# File 'lib/active_support/cache/redis_store.rb', line 183

def increment(key, amount = 1)
  instrument(:increment, key, :amount => amount) do
    @data.incrby key, amount
  end
end

#read_multi(*names) ⇒ Object

Reads multiple keys from the cache using a single call to the servers for all keys. Options can be passed in the last argument.

Example:

cache.read_multi "rabbit", "white-rabbit"
cache.read_multi "rabbit", "white-rabbit", :raw => true



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# File 'lib/active_support/cache/redis_store.rb', line 158

def read_multi(*names)
  @data.mget *names
end

#stats ⇒ Object 



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# File 'lib/active_support/cache/redis_store.rb', line 223

def stats
  @data.info
end