Module: Zuul::ActiveRecord::AuthorizationMethods::ClassMethods
- Defined in:
- lib/zuul/active_record.rb
Instance Method Summary collapse
-
#auth_scope(scope = nil, *exec_args, &block) ⇒ Object
Return the requested scope, call a method within a scope or execute an optional block within that scope.
-
#auth_scope_eval(scope = nil, &block) ⇒ Object
Evaluate a block within the requested scope.
-
#current_auth_scope=(scope) ⇒ Object
Set the current auth scope.
Instance Method Details
#auth_scope(scope = nil, *exec_args, &block) ⇒ Object
Return the requested scope, call a method within a scope or execute an optional block within that scope
If an optional block is passed, it will be executed within the provided scope. This allows you to call methods on the model or the auth scope without having to specify a scope each time. The exec_args hash can be used to pass arguments through to the block.
If a block is not passed, exec_args can be used to provide a method and arguments to be called on the object within the requested scope.
The reason this is defined separately at the class and instance level is because it uses instance_exec to execute the block within the scope of the object (either class or instance) and then uses method_missing temporarily to provide the auth scope methods.
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# File 'lib/zuul/active_record.rb', line 172 def auth_scope(scope=nil, *exec_args, &block) scope ||= current_auth_scope raise ::Zuul::Exceptions::UndefinedScope unless auth_scopes.has_key?(scope) if block_given? || (exec_args.length > 0 && exec_args[0].is_a?(Symbol) && respond_to?(exec_args[0])) old_scope = current_auth_scope self.current_auth_scope = scope instance_eval do def method_missing (meth,*args) return auth_scopes[current_auth_scope].send(meth, *args) if auth_scopes[current_auth_scope].respond_to?(meth) raise NoMethodError, "#{self.name}.#{meth} does not exist." end end exec_result = block_given? ? instance_exec(*exec_args, &block) : send(exec_args.slice!(0), *exec_args) instance_eval do undef method_missing end self.current_auth_scope = old_scope return exec_result end auth_scopes[scope] end |
#auth_scope_eval(scope = nil, &block) ⇒ Object
Evaluate a block within the requested scope
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# File 'lib/zuul/active_record.rb', line 199 def auth_scope_eval(scope=nil, &block) auth_scope(scope).instance_eval &block end |
#current_auth_scope=(scope) ⇒ Object
Set the current auth scope
The current_auth_scope is the scope that is currently active on the model for all auth operations
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# File 'lib/zuul/active_record.rb', line 206 def current_auth_scope=(scope) @current_auth_scope = scope.to_sym end |