Support Rails-compatible cache initialization

[alaz]

Tell us about your environment

Ruby Version: 2.5

Framework Version (Rails, whatever): Rails 5.2.1

Action Policy Version: 0.2.3

What did you do?

I have initialized Action Policy's cache in exactly the same way as Rails documentation recommends:

config.action_policy.cache_store = :mem_cache_store, ENV['MEMCACHE_SERVERS'], {namespace: "r2", compress: true, pool: 32}

What actually happened?

Exception:

vendor/bundle/jruby/2.5.0/gems/action_policy-0.2.3/lib/action_policy/policy/cache.rb:45:in `block in apply_with_cache': undefined method `read' for #<Array:0xd0fabc8> (NoMethodError)
    from org/jruby/RubyKernel.java:1301:in `yield_self'
    from vendor/bundle/jruby/2.5.0/gems/action_policy-0.2.3/lib/action_policy/policy/cache.rb:44:in `apply_with_cache'
    from vendor/bundle/jruby/2.5.0/gems/action_policy-0.2.3/lib/action_policy/policy/cache.rb:58:in `apply'
    from vendor/bundle/jruby/2.5.0/gems/action_policy-0.2.3/lib/action_policy/policy/cached_apply.rb:18:in `apply'
    from vendor/bundle/jruby/2.5.0/gems/action_policy-0.2.3/lib/action_policy/policy/reasons.rb:98:in `allowed_to?'
    from app/policies/topic_policy.rb:7:in `show?'

[palkan]

Thanks for the report!

Just pushed a fix to master, check, please.

[alaz]

Fixed. Thank you!

[palkan]

Released as 0.2.4