Class: Rack::Cache::Tags

Inherits:
Object
  • Object
show all
Defined in:
lib/rack/cache/tags.rb,
lib/rack/cache/tags/store.rb,
lib/rack/cache/tags/store/active_record.rb

Defined Under Namespace

Modules: Store

Constant Summary collapse

PURGE_TAGS_HEADER = 
'rack-cache.purge-tags'
TAGS_HEADER = 
'rack-cache.tags'

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(app) ⇒ Tags

Returns a new instance of Tags.



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# File 'lib/rack/cache/tags.rb', line 24

def initialize(app)
  @app = app
end

Instance Attribute Details

#app ⇒ Object (readonly)

Returns the value of attribute app.



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# File 'lib/rack/cache/tags.rb', line 22

def app
  @app
end

Class Method Details

.store ⇒ Object 



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# File 'lib/rack/cache/tags.rb', line 10

def store
  @store ||= Store::ActiveRecord.new
end

.store=(store) ⇒ Object 



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# File 'lib/rack/cache/tags.rb', line 14

def store=(store)
  @store ||= store
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/rack/cache/tags.rb', line 28

def call(env)
  status, headers, body = app.call(env)
  store(Rack::Request.new(env).url, headers[TAGS_HEADER]) if status == 200 && headers.key?(TAGS_HEADER)
  purge(headers) if headers.key?(PURGE_TAGS_HEADER)
  [status, headers, body]
end