👀 Views: 928 💬 Answers: 1 📅 Created: 2025-06-21

ruby rails activerecord Ruby

I'm upgrading from an older version and Can someone help me understand I'm sure I'm missing something obvious here, but I've searched everywhere and can't find a clear answer....... I'm working with a question with updating nested associations using ActiveRecord callbacks in a Ruby on Rails 7 application. When I try to update a parent object, I want to ensure that any changes to the nested child objects are processed correctly. However, I'm finding that the callbacks are not triggering as expected for the nested associations. I've defined the following models: ```ruby class Project < ApplicationRecord has_many :tasks, dependent: :destroy accepts_nested_attributes_for :tasks, allow_destroy: true before_update :log_project_update private def log_project_update Rails.logger.info "Project #{id} is being updated." end end class Task < ApplicationRecord belongs_to :project end ``` In my controller, I have the following code to update a project with its tasks: ```ruby class ProjectsController < ApplicationController def update @project = Project.find(params[:id]) if @project.update(project_params) redirect_to @project, notice: 'Project was successfully updated.' else render :edit end end private def project_params params.require(:project).permit(:name, tasks_attributes: [:id, :description, :_destroy]) end end ``` When I submit the form to update the project, the log message from the `log_project_update` method appears, but if I change any task attributes, the `before_update` callbacks within the `Task` model aren't being triggered. I want to ensure that I can log updates to tasks as well. I’ve also tried moving the logging logic directly into the `Task` model, but it seems like the callbacks aren’t firing at all for nested attributes. I’ve verified that the parameters are being passed correctly and that `allow_destroy: true` is set, so I'm not sure why this is happening. Is there a way to ensure that ActiveRecord callbacks are triggered for nested associations when updating them through the parent model? Any advice or insights would be greatly appreciated. For context: I'm using Ruby on macOS. What am I doing wrong? Am I missing something obvious? My team is using Ruby for this web app. Thanks in advance! Thanks in advance!