Module: ActiveRecord::Configurations

Defined in:
lib/active_record/configurations.rb,
lib/active_record/configurations/version.rb

Constant Summary collapse

VERSION = 
"0.3.0"

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#configurations ⇒ Object (readonly)

Returns the value of attribute configurations.



55
56
57
 
# File 'lib/active_record/configurations.rb', line 55

def configurations
  @configurations
end

#environments ⇒ Object (readonly)

Returns the value of attribute environments.



54
55
56
 
# File 'lib/active_record/configurations.rb', line 54

def environments
  @environments
end

Class Method Details

.extended(child) ⇒ Object 



27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
 
# File 'lib/active_record/configurations.rb', line 27

def self.extended(child)
	child.instance_variable_set(:@environments, {})
	child.instance_variable_set(:@configurations, {})
	
	# This is needed to explicitly override the behaviour provided by ActiveRecord::Core.
	def child.configurations
		instance_variable_get(:@configurations)
	end
	
	def child.configurations= value
		instance_variable_set(:@configurations, value)
	end
	
	# Remove the shitty "default"
	child.configurations.delete("default_env")
	
	# Add one that makes sense:
	child.configure(:default) do
		# The provided uri overrides other options.
		dsn ->{ENV[prefix.upcase + "_DSN"]}
		database ->{prefix + "_#{name}"}
		
		host 'localhost'
		prefix 'database'
	end
end

Instance Method Details

#configure(name, parent: :default, &block) ⇒ Object 



101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
 
# File 'lib/active_record/configurations.rb', line 101

def configure(name, parent: :default, &block)
	parent = self.lookup_environment(parent)
	
	environment = Build::Environment.new(parent, {name: name.to_s}, &block)
	
	self.environments[name] = environment
	
	configuration = environment.to_hash
	
	if dsn = configuration[:dsn]
		resolve_database_dsn(dsn, configuration)
	end
	
	self.configurations[name.to_s] = configuration.stringify_keys
end

#establish_connection(config = nil) ⇒ Object

This is a quick hack to work around github.com/rails/rails/pull/32135



118
119
120
121
122
123
124
125
126
127
128
129
130
 
# File 'lib/active_record/configurations.rb', line 118

def establish_connection(config = nil)
	raise "Anonymous class is not allowed." unless name

	config ||= DEFAULT_ENV.call.to_sym
	spec_name = self == Base ? "primary" : name
	self.connection_specification_name = spec_name

	resolver = ConnectionAdapters::ConnectionSpecification::Resolver.new(self.configurations)
	spec = resolver.resolve(config).symbolize_keys
	spec[:name] = spec_name

	connection_handler.establish_connection(spec)
end

#lookup_environment(name) ⇒ Object 



91
92
93
94
95
96
97
98
99
 
# File 'lib/active_record/configurations.rb', line 91

def lookup_environment(name)
	return nil unless name
	
	if environment = self.environments[name]
		environment
	# elsif self.superclass
	# 	self.superclass.lookup_environment(name)
	end
end

#resolve_database_dsn(string, environment) ⇒ Object 



57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
 
# File 'lib/active_record/configurations.rb', line 57

def resolve_database_dsn(string, environment)
	uri = URI.parse(string)
	
	case uri.scheme
	when 'postgres'
		environment[:adapter] = 'postgresql'
	when 'mysql'
		environment[:adapter] = 'mysql2'
	else
		environment[:adapter] = uri.scheme
	end
	
	if username = uri.user
		environment[:username] = username
	end
	
	if password = uri.password
		environment[:password] = password
	end
	
	if host = uri.host
		environment[:host] = host
	end
	
	if port = uri.port
		environment[:port] = port
	end
	
	if path = uri.path
		# The path should always be relative:
		environment[:database] = path.sub(/^\//, '')
	end
end