Module: DataMapper::Validations::Context

Included in:
DataMapper::Validations
Defined in:
lib/dm-validations/context.rb

Overview

Module with validation context functionality.

Contexts are implemented using a thread-local array-based stack.

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.any?(&block) ⇒ Boolean

Are there any contexts on the stack?



36
37
38
 
# File 'lib/dm-validations/context.rb', line 36

def self.any?(&block)
  stack.any?(&block)
end

.current ⇒ Symbol, NilClass

Get the current validation context or nil (if no context is on the stack).



26
27
28
 
# File 'lib/dm-validations/context.rb', line 26

def self.current
  stack.last
end

.in_context(context) ⇒ Object

Execute a block of code within a specific validation context



14
15
16
17
18
19
 
# File 'lib/dm-validations/context.rb', line 14

def self.in_context(context)
  stack << context
  yield
ensure
  stack.pop
end

.stack ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

The (thread-local) validation context stack This allows object graphs to be saved within potentially nested contexts without having to pass the validation context throughout



45
46
47
 
# File 'lib/dm-validations/context.rb', line 45

def self.stack
  Thread.current[:dm_validations_context_stack] ||= []
end

Instance Method Details

#default_validation_context ⇒ Symbol

The default validation context for this Resource. This Resource’s default context can be overridden by implementing #default_validation_context



58
59
60
 
# File 'lib/dm-validations/context.rb', line 58

def default_validation_context
  model.validators.current_context || :default
end