Class: ForeignKeyValidation::Validator

Inherits:
Object
  • Object
show all
Defined in:
lib/foreign_key_validation/validator.rb

Constant Summary collapse

DEFAULT_VALIDATE_AGAINST = 
:user

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(klass, opt = {}) ⇒ Validator

Returns a new instance of Validator.



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# File 'lib/foreign_key_validation/validator.rb', line 8

def initialize(klass, opt={})
  self.klass                 = klass
  self.validate_against      = find_validate_against(opt[:on])
  self.reflections           = klass.reflect_on_all_associations(:belongs_to)
  self.reflection_names      = reflections.map(&:name).map(&:to_s)
  self.validate_against_key  = find_validate_against_key
  self.validate_with         = find_validate_with(opt[:with])
end

Instance Attribute Details

#klass ⇒ Object

Returns the value of attribute klass.



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# File 'lib/foreign_key_validation/validator.rb', line 4

def klass
  @klass
end

#reflection_names ⇒ Object

Returns the value of attribute reflection_names.



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# File 'lib/foreign_key_validation/validator.rb', line 4

def reflection_names
  @reflection_names
end

#reflections ⇒ Object

Returns the value of attribute reflections.



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# File 'lib/foreign_key_validation/validator.rb', line 4

def reflections
  @reflections
end

#validate_against ⇒ Object

Returns the value of attribute validate_against.



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# File 'lib/foreign_key_validation/validator.rb', line 4

def validate_against
  @validate_against
end

#validate_against_key ⇒ Object

Returns the value of attribute validate_against_key.



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# File 'lib/foreign_key_validation/validator.rb', line 4

def validate_against_key
  @validate_against_key
end

#validate_with ⇒ Object

Returns the value of attribute validate_with.



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# File 'lib/foreign_key_validation/validator.rb', line 4

def validate_with
  @validate_with
end

Instance Method Details

#check ⇒ Object

Raises:



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# File 'lib/foreign_key_validation/validator.rb', line 17

def check
  raise Errors::NoReleationFoundError.new(klass.name) if reflection_names.empty?
  raise Errors::NoForeignKeyFoundError.new(validate_against, klass.table_name) unless reflection_names.include?(validate_against)
  raise Errors::UnknownRelationError.new(validate_with) unless validate_with.all? {|k| reflection_names.include?(k)}
end

#filter_method_name ⇒ Object 



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# File 'lib/foreign_key_validation/validator.rb', line 23

def filter_method_name
  "validate_foreign_keys_on_#{validate_against}"
end