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Padrino::Cache::Store::Redis

Redis Cache Store

Public Class Methods

new(client) click to toggle source

Initialize Redis store with client connection.

@param client

Instance of Redis client

@example

Padrino.cache = Padrino::Cache::Store::Redis.new(::Redis.new(:host => '127.0.0.1', :port => 6379, :db => 0))
# or from your app
set :cache, Padrino::Cache::Store::Redis.new(::Redis.new(:host => '127.0.0.1', :port => 6379, :db => 0))

@api public

# File lib/padrino-cache/store/redis.rb, line 20
def initialize(client)
  @backend = client
end

Public Instance Methods

delete(key) click to toggle source

Delete the value for a given key

@param [String] key

cache key

@example

# with: MyApp.cache.set('records', records)
MyApp.cache.delete('records')

@api public

# File lib/padrino-cache/store/redis.rb, line 76
def delete(key)
  @backend.del(key)
end
flush() click to toggle source

Reinitialize your cache

@example

# with: MyApp.cache.set('records', records)
MyApp.cache.flush
MyApp.cache.get('records') # => nil

@api public

# File lib/padrino-cache/store/redis.rb, line 89
def flush
  @backend.flushdb
end
get(key) click to toggle source

Return the a value for the given key

@param [String] key

cache key

@example

# with MyApp.cache.set('records', records)
MyApp.cache.get('records')

@api public

# File lib/padrino-cache/store/redis.rb, line 35
def get(key)
  code = @backend.get(key)
  Marshal.load(code) if code.present?
end
set(key, value, opts = nil) click to toggle source

Set the value for a given key and optionally with an expire time Default expiry is 86400.

@param [String] key

cache key

@param value

value of cache key

@example

MyApp.cache.set('records', records)
MyApp.cache.set('records', records, :expires_in => 30) # => 30 seconds

@api public

# File lib/padrino-cache/store/redis.rb, line 54
def set(key, value, opts = nil)
  value = Marshal.dump(value) if value
  if opts && opts[:expires_in]
    expires_in = opts[:expires_in].to_i
    expires_in = expires_in if expires_in < EXPIRES_EDGE
    @backend.setex(key, expires_in, value)
  else
    @backend.set(key, value)
  end
end

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