Class: DbCharmer::ConnectionProxy

Inherits:
ActiveSupport::BasicObject
Defined in:
lib/db_charmer/connection_proxy.rb

Constant Summary collapse

RESPOND_TO_METHODS = 
[
  :abstract_connection_class,
  :db_charmer_connection_name,
  :db_charmer_connection_proxy,
  :db_charmer_retrieve_connection,
  :nil?
].freeze
DOESNT_RESPOND_TO_METHODS =

Short-circuit some of the methods for which we know there is a separate check in coercion code

[
  :set_real_connection
].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(abstract_class, db_name) ⇒ ConnectionProxy

Returns a new instance of ConnectionProxy.



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# File 'lib/db_charmer/connection_proxy.rb', line 10

def initialize(abstract_class, db_name)
  @abstract_connection_class = abstract_class
  @db_name = db_name
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(meth, *args, &block) ⇒ Object 



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# File 'lib/db_charmer/connection_proxy.rb', line 52

def method_missing(meth, *args, &block)
  db_charmer_retrieve_connection.send(meth, *args, &block)
end

Instance Attribute Details

#abstract_connection_class ⇒ Object

We use this to get a connection class from the proxy



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# File 'lib/db_charmer/connection_proxy.rb', line 8

def abstract_connection_class
  @abstract_connection_class
end

Instance Method Details

#db_charmer_connection_name ⇒ Object 



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# File 'lib/db_charmer/connection_proxy.rb', line 15

def db_charmer_connection_name
  @db_name
end

#db_charmer_connection_proxy ⇒ Object 



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# File 'lib/db_charmer/connection_proxy.rb', line 19

def db_charmer_connection_proxy
  self
end

#db_charmer_retrieve_connection ⇒ Object 



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# File 'lib/db_charmer/connection_proxy.rb', line 23

def db_charmer_retrieve_connection
  @abstract_connection_class.retrieve_connection
end

#nil? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/db_charmer/connection_proxy.rb', line 27

def nil?
  false
end

#respond_to?(method_name, include_all = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/db_charmer/connection_proxy.rb', line 45

def respond_to?(method_name, include_all = false)
  return true if RESPOND_TO_METHODS.include?(method_name)
  return false if DOESNT_RESPOND_TO_METHODS.include?(method_name)
  db_charmer_retrieve_connection.respond_to?(method_name, include_all)
end