Class: ValidationBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/validation_sync/validation_builder.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#method ⇒ Object

allows us to set default arguments for the builder



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# File 'lib/validation_sync/validation_builder.rb', line 4

def method
  @method
end

#object_name ⇒ Object

allows us to set default arguments for the builder



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# File 'lib/validation_sync/validation_builder.rb', line 4

def object_name
  @object_name
end

Instance Method Details

#check_model_validation(object_name = self.object_name, method = self.method, validation) ⇒ Object

Check to see if a given model attribute uses a given validation returns true / false



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# File 'lib/validation_sync/validation_builder.rb', line 53

def check_model_validation(object_name=self.object_name, method=self.method, validation)
  if get_model_validation(object_name, method, validation).nil?
    return false
  else
    return true
  end
end

#find_all_models ⇒ Object

Create a list of all of the current app’s Active Record Models returns an array of hashes



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# File 'lib/validation_sync/validation_builder.rb', line 11

def find_all_models
	models = []

  # iterate over all files in folder
  folder = File.join(ValidationSync::Engine::APP_ROOT, "app", "models")

  Dir[File.join(folder, "*")].each do |filename|
  	klass = File.basename(filename, '.rb').camelize.constantize
		next unless klass.ancestors.include?(ActiveRecord::Base)

		model = {
			name: klass.name.downcase,
			attributes: klass.new.attributes.keys
		}

		models << model
  end

  return models
end

#get_model_validation(object_name = self.object_name, method = self.method, validation) ⇒ Object

Check to see if a given model attribute uses a given validation returns either a validation object or nil



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# File 'lib/validation_sync/validation_builder.rb', line 38

def get_model_validation(object_name=self.object_name, method=self.method, validation)
  object_class = object_name.camelize.constantize
  if val = object_class.validators_on(method).find { |v| v.class == validation }
    val
  else
    nil
  end
end

#get_validation_attr(object_name = self.object_name, method = self.method, validation, option) ⇒ Object

Fetch a given option for a model’s attribute’s validation returns the specified validation option



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# File 'lib/validation_sync/validation_builder.rb', line 67

def get_validation_attr(object_name=self.object_name, method=self.method, validation, option)

	# Make sure that we use this validation for this attribute
  if get_model_validation(object_name, method, validation)

  	# look up the option
    object_class = object_name.camelize.constantize
    validation = object_class.validators_on(method).find { |v| v.class == validation }
    return (validation.options[option]) ? validation.options[option] : nil

  else
  	nil
  end
end

#get_validation_message(object_name = self.object_name, method = self.method, validation) ⇒ Object

Fetch the validation message for a given model’s attribute’s validation returns a string



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# File 'lib/validation_sync/validation_builder.rb', line 88

def get_validation_message(object_name=self.object_name, method=self.method, validation)

  # Are we even using this validation?
  if (val = get_model_validation(object_name, method, validation)).nil?
    nil

  else
    # we are using the validation, now find the message
    
  	if val.options[:message]
  		# Simple lookup:
   	return val.options[:message]

   else
   	# Takes some digging:
   	# get the index of this validation in the validators_on array...
   	validators_array = []

   	object_class = object_name.camelize.constantize
   	object_class.validators_on(method).each do |v|
   		validators_array << v.class
   	end

   	validators_hash = Hash[validators_array.map.with_index.to_a]
   	index = validators_hash[validation]

      # create a new object
   	object = object_class.new

      # Do we need ro define a confirmation_of attribute?
      # If so, then we should read the errors from this
      # attribute, rather than the original
      if object_class.method_defined?("#{method}_confirmation")
        object.send("#{method}_confirmation=", "#{object.send(method)}_not_confirmed")
        method_to_read_errors_from = "#{method}_confirmation".to_sym
      else
        method_to_read_errors_from = method
      end

      # gather the errors
   	object.valid?

      # and match the index to the errors array
      if object.errors.messages[method_to_read_errors_from]
	    	return object.errors.messages[method_to_read_errors_from][index]
      end
   end
  end

end