Class: Motel::ConnectionAdapters::ConnectionSpecification::Resolver

Inherits:
Object
  • Object
show all
Defined in:
lib/motel/connection_adapters/connection_specification/resolver.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(configurations = nil) ⇒ Resolver

Returns a new instance of Resolver.



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# File 'lib/motel/connection_adapters/connection_specification/resolver.rb', line 12

def initialize(configurations = nil)
  @configurations = configurations || {}
end

Instance Attribute Details

#configurations ⇒ Object

Returns the value of attribute configurations.



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# File 'lib/motel/connection_adapters/connection_specification/resolver.rb', line 10

def configurations
  @configurations
end

Instance Method Details

#spec(config) ⇒ Object

Raises:

  • (::ActiveRecord::AdapterNotSpecified) 


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# File 'lib/motel/connection_adapters/connection_specification/resolver.rb', line 16

def spec(config)
  spec = resolve(config).symbolize_keys

  raise(::ActiveRecord::AdapterNotSpecified, "database configuration does not specify adapter") unless spec.key?(:adapter)

  path_to_adapter = "active_record/connection_adapters/#{spec[:adapter]}_adapter"
  begin
    require path_to_adapter
  rescue Gem::LoadError => e
    raise Gem::LoadError, "Specified '#{spec[:adapter]}' for database adapter, but the gem is not loaded. Add `gem '#{e.name}'` to your Gemfile (and ensure its version is at the minimum required by ActiveRecord)."
  rescue LoadError => e
    raise LoadError, "Could not load '#{path_to_adapter}'. Make sure that the adapter in config/database.yml is valid. If you use an adapter other than 'mysql', 'mysql2', 'postgresql' or 'sqlite3' add the necessary adapter gem to the Gemfile.", e.backtrace
  end

  adapter_method = "#{spec[:adapter]}_connection"
  ::ActiveRecord::ConnectionAdapters::ConnectionSpecification.new(spec, adapter_method)
end