fix-cache-returns-nil (#3213)

This commit is contained in:
masarakki 2017-05-25 12:18:08 +09:00 committed by Eugen Rochko
parent 576afed755
commit 0949d86d83
3 changed files with 61 additions and 7 deletions

View file

@ -5,7 +5,7 @@ module Settings
extend ActiveSupport::Concern
def settings
ScopedSettings.for_thing(self)
@settings ||= ScopedSettings.new(self)
end
end
end

View file

@ -1,14 +1,69 @@
# frozen_string_literal: true
module Settings
class ScopedSettings < ::Setting
def self.for_thing(object)
class ScopedSettings
def initialize(object)
@object = object
self
end
def self.thing_scoped
unscoped.where(thing_type: @object.class.base_class.to_s, thing_id: @object.id)
# rubocop:disable Style/MethodMissing
def method_missing(method, *args)
method_name = method.to_s
# set a value for a variable
if method_name[-1] == '='
var_name = method_name.sub('=', '')
value = args.first
self[var_name] = value
else
# retrieve a value
self[method_name]
end
end
# rubocop:enable Style/MethodMissing
def respond_to?(_method_name, _include_private = false)
true
end
def all_as_records
vars = thing_scoped
records = vars.map { |r| [r.var, r] }.to_h
Setting.send(:default_settings).each do |key, default_value|
next if records.key?(key) || default_value.is_a?(Hash)
records[key] = Setting.new(var: key, value: default_value)
end
records
end
def []=(key, value)
key = key.to_s
record = thing_scoped.find_by(var: key) || thing_scoped.new(var: key)
record.value = value
record.save!
Rails.cache.write(Setting.cache_key(key, @object), value)
value
end
def [](key)
Rails.cache.fetch(Setting.cache_key(key, @object)) do
db_val = thing_scoped.find_by(var: key.to_s)
if db_val
default_value = Setting.send(:default_settings)[key]
return default_value.with_indifferent_access.merge!(db_val.value) if default_value.is_a?(Hash)
db_val.value
else
Setting.send(:default_settings)[key]
end
end
end
protected
def thing_scoped
Setting.unscoped.where(thing_type: @object.class.base_class.to_s, thing_id: @object.id)
end
end
end

View file

@ -35,7 +35,6 @@ class Setting < RailsSettings::Base
default_settings[key]
end
end
val
end