Class: ActiveSupport::Cache::PrefixedStore

Inherits:
Object
  • Object
show all
Defined in:
lib/active_support/cache/prefixed_store.rb

Overview

Public: A wrapper around an ActiveSupport::Cache to prefix all keys.

Example

cache = ActiveSupport::Cache::PrefixedStore.new 'namespace:', Rails.cache

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(prefix, store) ⇒ PrefixedStore

Returns a new instance of PrefixedStore.



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# File 'lib/active_support/cache/prefixed_store.rb', line 12

def initialize(prefix, store)
  @prefix = prefix
  @store = store
end

Instance Attribute Details

#prefix ⇒ Object (readonly)

Returns the value of attribute prefix.



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# File 'lib/active_support/cache/prefixed_store.rb', line 10

def prefix
  @prefix
end

#store ⇒ Object (readonly)

Returns the value of attribute store.



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# File 'lib/active_support/cache/prefixed_store.rb', line 10

def store
  @store
end

Instance Method Details

#clear ⇒ Object 



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# File 'lib/active_support/cache/prefixed_store.rb', line 36

def clear
  store.delete_matched(prefix)
end

#fetch(key, *args, &block) ⇒ Object 



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# File 'lib/active_support/cache/prefixed_store.rb', line 32

def fetch(key, *args, &block)
  store.fetch(prefixed(key), *args, &block)
end

#read(key, *args, &block) ⇒ Object 



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# File 'lib/active_support/cache/prefixed_store.rb', line 17

def read(key, *args, &block)
  store.read(prefixed(key), *args, &block)
end

#read_multi(*keys) ⇒ Object 



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# File 'lib/active_support/cache/prefixed_store.rb', line 21

def read_multi(*keys)
  k = keys.map { |key| prefixed(key) }
  store.read_multi(*k).each_with_object(Hash.new) do |t,memo|
    memo[t[0].sub(prefix, '')] = t[1]
  end
end

#write(key, *args, &block) ⇒ Object 



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# File 'lib/active_support/cache/prefixed_store.rb', line 28

def write(key, *args, &block)
  store.write(prefixed(key), *args, &block)
end