Class: Policier::Condition

Inherits:
Object
  • Object
show all
Extended by:
ConditionResolve
Defined in:
lib/policier/condition.rb

Defined Under Namespace

Classes: FailedException

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from ConditionResolve

resolve, |

Constructor Details

#initialize ⇒ Condition

Returns a new instance of Condition.



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# File 'lib/policier/condition.rb', line 33

def initialize
  @context = Context.current
  @data = @context.init_data(self.class, self.class.data_class) if self.class.data_class.present?
  @failed = false
  @executed = false
end

Class Attribute Details

.collector ⇒ Object

Returns the value of attribute collector.



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# File 'lib/policier/condition.rb', line 87

def collector
  @collector
end

.data_class ⇒ Object

Returns the value of attribute data_class.



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# File 'lib/policier/condition.rb', line 28

def data_class
  @data_class
end

.verification_block ⇒ Object (readonly)

Returns the value of attribute verification_block.



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# File 'lib/policier/condition.rb', line 86

def verification_block
  @verification_block
end

Instance Attribute Details

#data ⇒ Object (readonly)

Returns the value of attribute data.



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# File 'lib/policier/condition.rb', line 31

def data
  @data
end

Class Method Details

.also_ensure(name, &block) ⇒ Object 



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# File 'lib/policier/condition.rb', line 93

def also_ensure(name, &block)
  define_method :"and_#{name}" do |data|
    @failed ||= !instance_exec_with_failures(data, &block)
    self
  end
end

.handle ⇒ Object 



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# File 'lib/policier/condition.rb', line 100

def handle
  Dry::Inflector.new.underscore(name).gsub("/", "_").to_sym
end

.verify_with(&block) ⇒ Object 



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# File 'lib/policier/condition.rb', line 89

def verify_with(&block)
  @verification_block = block
end

Instance Method Details

#depend_on!(condition_klass) ⇒ Object 



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# File 'lib/policier/condition.rb', line 40

def depend_on!(condition_klass)
  condition = condition_klass.resolve
  return fail! if condition.failed?

  condition.data
end

#fail! ⇒ Object

Raises:



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# File 'lib/policier/condition.rb', line 47

def fail!
  raise FailedException
end

#failed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/policier/condition.rb', line 55

def failed?
  @failed
end

#instance_exec_with_failures(*args, &block) ⇒ Object 



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# File 'lib/policier/condition.rb', line 74

def instance_exec_with_failures(*args, &block)
  instance_exec(*args, &block)
  true
rescue FailedException
  false
end

#override!(failing: false, data_replacement: {}) ⇒ Object 



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# File 'lib/policier/condition.rb', line 67

def override!(failing: false, data_replacement: {})
  @failed = failing
  @executed = true
  data_replacement.each { |k, v| data[k] = v }
  self
end

#payload ⇒ Object 



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# File 'lib/policier/condition.rb', line 51

def payload
  @context.payload
end

#union ⇒ Object 



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# File 'lib/policier/condition.rb', line 81

def union
  ConditionUnion.new(self)
end

#verify ⇒ Object 



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# File 'lib/policier/condition.rb', line 59

def verify
  return self if @executed

  @failed ||= !instance_exec_with_failures(&self.class.verification_block)
  @executed = true
  self
end