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Contents
module Alf
module Rack
# Connect to a database and make the connection available in the Rack
# environment.
#
# Example:
#
# ```
# require 'sinatra'
#
# use Alf::Rack::Connect do |cfg| # see Alf::Rack::Config
# cfg.database = ... # (required) a Alf::Database or Alf::Adapter
# end
#
# get '/' do
# # the configuration object (a dup of what has been seen above)
# config = env[Alf::Rack::Connect::CONFIG_KEY]
#
# # the config object is connected
# connection = config.connection
# # => Alf::Database::Connection
#
# # ...
# end
# ```
class Connect
CONFIG_KEY = "ALF_RACK_CONFIG".freeze
def initialize(app, config = Config.new)
@app = app
@config = config
yield(config) if block_given?
end
def call(env)
env[CONFIG_KEY] = cfg = @config.dup
cfg.connect do
@app.call(env)
end
end
end # class Connect
end # module Rack
end # module Alf
Version data entries
5 entries across 5 versions & 1 rubygems