Module: StandardAPI::AccessControlList

Defined in:
lib/standard_api/access_control_list.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(application_controller) ⇒ Object 



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# File 'lib/standard_api/access_control_list.rb', line 14

def self.included(application_controller)
  acl_dir = Rails.application.root.join('app', 'controllers', 'acl')
  return if !acl_dir.exist?

  traverse(acl_dir) do |child|
    mod = child.classify.constantize
    prefix = child.delete_suffix('_acl').gsub('/', '_')

    [:orders, :includes, :attributes].each do |m|
      next if !mod.instance_methods.include?(m)
      mod.send :alias_method, "#{prefix}_#{m}".to_sym, m
      mod.send :remove_method, m
    end

    if mod.instance_methods.include?(:nested)
      mod.send :alias_method, "nested_#{prefix}_attributes".to_sym, :nested
      mod.send :remove_method, :nested
    end

    if mod.instance_methods.include?(:filter)
      mod.send :alias_method, "filter_#{prefix}_params".to_sym, :filter
      mod.send :remove_method, :filter
    end

    application_controller.include mod
  end
end

.traverse(path, prefix: nil, &block) ⇒ Object 



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# File 'lib/standard_api/access_control_list.rb', line 4

def self.traverse(path, prefix: nil, &block)
  path.children.each do |child|
    if child.file? && child.basename('.rb').to_s.ends_with?('_acl')
      block.call([prefix, child.basename('.rb').to_s].compact.join('/'))
    elsif child.directory?
      traverse(child, prefix: [prefix, child.basename.to_s].compact.join('/'), &block)
    end
  end
end

Instance Method Details

#filter_model_params(model_params, model, id: nil, allow_id: nil) ⇒ Object 



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# File 'lib/standard_api/access_control_list.rb', line 58

def filter_model_params(model_params, model, id: nil, allow_id: nil)
  permitted_params = if self.respond_to?("#{model_name(model)}_attributes", true)
    permits = self.send("#{model_name(model)}_attributes")

    allow_id ? model_params.permit(permits, :id) : model_params.permit(permits)
  else
    ActionController::Parameters.new
  end

  if self.respond_to?("nested_#{model_name(model)}_attributes", true)
    self.send("nested_#{model_name(model)}_attributes").each do |relation|
      relation = model.reflect_on_association(relation)
      attributes_key = "#{relation.name}_attributes"

      if model_params.has_key?(attributes_key)
        filter_method = "filter_#{relation.klass.base_class.model_name.singular}_params"
        if model_params[attributes_key].nil?
          permitted_params[attributes_key] = nil
        elsif model_params[attributes_key].is_a?(Array) && model_params[attributes_key].all? { |a| a.keys.map(&:to_sym) == [:id] }
          permitted_params["#{relation.name.to_s.singularize}_ids"] = model_params[attributes_key].map{|a| a['id']}
        elsif self.respond_to?(filter_method, true)
          permitted_params[attributes_key] = if model_params[attributes_key].is_a?(Array)
            model_params[attributes_key].map { |i| self.send(filter_method, i, allow_id: true) }
          else
            self.send(filter_method, model_params[attributes_key], allow_id: true)
          end
        else
          permitted_params[attributes_key] = if model_params[attributes_key].is_a?(Array)
            model_params[attributes_key].map { |i| filter_model_params(i, relation.klass.base_class, allow_id: true) }
          else
            filter_model_params(model_params[attributes_key], relation.klass.base_class, allow_id: true)
          end
        end
      elsif relation.collection? && model_params.has_key?("#{relation.name.to_s.singularize}_ids")
        permitted_params["#{relation.name.to_s.singularize}_ids"] = model_params["#{relation.name.to_s.singularize}_ids"]
      elsif model_params.has_key?(relation.foreign_key)
        permitted_params[relation.foreign_key] = model_params[relation.foreign_key]
        permitted_params[relation.foreign_type] = model_params[relation.foreign_type] if relation.polymorphic?
      end

      permitted_params.permit!
    end
  end

  permitted_params
end

#model_name(model) ⇒ Object 



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# File 'lib/standard_api/access_control_list.rb', line 105

def model_name(model)
  if model.model_name.singular.starts_with?('habtm_')
    model.reflect_on_all_associations.map { |a| a.klass.base_class.model_name.singular }.sort.join('_')
  else
    model.model_name.singular
  end
end

#model_orders ⇒ Object 



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# File 'lib/standard_api/access_control_list.rb', line 42

def model_orders
  if self.respond_to?("#{model.model_name.singular}_orders", true)
    self.send("#{model.model_name.singular}_orders")
  else
    []
  end
end

#model_params ⇒ Object 



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# File 'lib/standard_api/access_control_list.rb', line 50

def model_params
  if self.respond_to?("filter_#{model_name(model)}_params", true)
    self.send("filter_#{model_name(model)}_params", params[model_name(model)], id: params[:id])
  else
    filter_model_params(params[model_name(model)], model.base_class)
  end
end