Class: Mongoid::QueryCache::Middleware

Inherits:

Object

• Object
• Mongoid::QueryCache::Middleware

Defined in:

lib/mongoid/query_cache.rb

Overview

The middleware to be added to a rack application in order to activate the query cache.

Since:

• 4.0.0

Instance Method Summary

• #call(env) ⇒ Object

  Execute the request, wrapping in a query cache.

• #initialize(app) ⇒ Middleware constructor

  Instantiate the middleware.

Constructor Details

#initialize(app) ⇒ Middleware

Instantiate the middleware.

Examples:

Create the new middleware.

Middleware.new(app)

Parameters:

• app (Object) —

  The rack application stack.

Since:

• 4.0.0

# File 'lib/mongoid/query_cache.rb', line 147

def initialize(app)
  @app = app
end

Instance Method Details

#call(env) ⇒ Object

Execute the request, wrapping in a query cache.

Examples:

Execute the request.

middleware.call(env)

Parameters:

• env (Object) —

  The environment.

Returns:

• (Object) —

  The result of the call.

Since:

• 4.0.0

# File 'lib/mongoid/query_cache.rb', line 161

def call(env)
  QueryCache.cache do
    @app.call(env)
  end
ensure
  QueryCache.clear_cache
end