A cache store implementation which stores everything on the filesystem.
FileStore implements the Strategy::LocalCache strategy which implements an in memory cache inside of a block.
Methods
- C
- D
- I
- N
- R
- W
Constants
DIR_FORMATTER | = | "%03X" |
Attributes
[R] | cache_path |
Class Public methods
Instance Public methods
# File activesupport/lib/active_support/cache/file_store.rb, line 50 def decrement(name, amount = 1, options = nil) file_name = key_file_path(namespaced_key(name, options)) lock_file(file_name) do options = merged_options(options) if num = read(name, options) num = num.to_i - amount write(name, num, options) num else nil end end end
# File activesupport/lib/active_support/cache/file_store.rb, line 64 def delete_matched(matcher, options = nil) options = merged_options(options) instrument(:delete_matched, matcher.inspect) do matcher = key_matcher(matcher, options) search_dir(cache_path) do |path| key = file_path_key(path) delete_entry(key, options) if key.match(matcher) end end end
# File activesupport/lib/active_support/cache/file_store.rb, line 36 def increment(name, amount = 1, options = nil) file_name = key_file_path(namespaced_key(name, options)) lock_file(file_name) do options = merged_options(options) if num = read(name, options) num = num.to_i + amount write(name, num, options) num else nil end end end
Instance Protected methods
# File activesupport/lib/active_support/cache/file_store.rb, line 105 def delete_entry(key, options) file_name = key_file_path(key) if File.exist?(file_name) begin File.delete(file_name) delete_empty_directories(File.dirname(file_name)) true rescue => e # Just in case the error was caused by another process deleting the file first. raise e if File.exist?(file_name) false end end end
# File activesupport/lib/active_support/cache/file_store.rb, line 77 def read_entry(key, options) file_name = key_file_path(key) if File.exist?(file_name) entry = File.open(file_name) { |f| Marshal.load(f) } if entry && !entry.expired? && !entry.expires_in && !self.options[:expires_in] # Check for deprecated use of +:expires_in+ option from versions < 3.0 deprecated_expires_in = options[:expires_in] if deprecated_expires_in ActiveSupport::Deprecation.warn('Setting :expires_in on read has been deprecated in favor of setting it on write.', caller) if entry.created_at + deprecated_expires_in.to_f <= Time.now.to_f delete_entry(key, options) entry = nil end end end entry end rescue nil end