class method `self.lookup_store`

Ruby on Rails 3.2.22.5

Since v2.2.3

Available in: v2.2.3 v2.3.18 v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

self.lookup_store(*store_option)

Creates a new CacheStore object according to the given options.

If no arguments are passed to this method, then a new ActiveSupport::Cache::MemoryStore object will be returned.

If you pass a Symbol as the first argument, then a corresponding cache store class under the ActiveSupport::Cache namespace will be created. For example:

ActiveSupport::Cache.lookup_store(:memory_store)
# => returns a new ActiveSupport::Cache::MemoryStore object

ActiveSupport::Cache.lookup_store(:mem_cache_store)
# => returns a new ActiveSupport::Cache::MemCacheStore object

Any additional arguments will be passed to the corresponding cache store class’s constructor:

ActiveSupport::Cache.lookup_store(:file_store, "/tmp/cache")
# => same as: ActiveSupport::Cache::FileStore.new("/tmp/cache")

If the first argument is not a Symbol, then it will simply be returned:

ActiveSupport::Cache.lookup_store(MyOwnCacheStore.new)
# => returns MyOwnCacheStore.new

Parameters

store_option rest

Source

# File activesupport/lib/active_support/cache.rb, line 55
      def lookup_store(*store_option)
        store, *parameters = *Array.wrap(store_option).flatten

        case store
        when Symbol
          store_class_name = store.to_s.camelize
          store_class =
            begin
              require "active_support/cache/#{store}"
            rescue LoadError => e
              raise "Could not find cache store adapter for #{store} (#{e})"
            else
              ActiveSupport::Cache.const_get(store_class_name)
            end
          store_class.new(*parameters)
        when nil
          ActiveSupport::Cache::MemoryStore.new
        else
          store
        end
      end

Defined in activesupport/lib/active_support/cache.rb line 55 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveSupport::Cache

Signature

Parameters