ruby on rails - Method to change resource attribute based on nested resource attributes -

I've got a Rail 4 app quite a simple question; I have written a method, but I do not know where it should go and how to call it.

I have a resource, targets , and nested resources, work (i.e. the tasks of each goal) all work well.

What I want to do is set so that work is target for each task is correct Converts the position of the target

The method I want to use is the content:

complete = true @ goal.tasks.each do | T | if! T.Stats? Complete = Ending the wrong end if completed? @ Goal.status = true end

Checks if there is status in the work of all targets : and if That is, also changes the status to targets .

My idea is to put that method in the target . Model, but as far as I can guess.

• Where does the method go? (Is this a model like I thought?)
• How do I call the method (/ what do I need)?

(I know the method may contain some minor syntax errors, but once I can actually use it, I will be able to test and trigger it !)

Thank you for taking the time to see someone.

You can simplify your function as follows:

  @ Goal.status = @ goals.tasks.map (& amp;: complete). All?  

Assume that you want to know as soon as possible that your target is complete, you can assign this function to your task Models You can do it as follows:

  def task < ActiveRecord :: Base is_to: target after_save: goal_completed def goal_completed if self.goal.tasks.map (& amp; complete). all? Self.goal.update_attribute (full, true) end and end  

As you can see, if you have many tasks a target For , this can be very expensive quickly, because you are pulling task each time a target 's work . Therefore, for a large database, I advised to count the entire work for each goal (it really is similar to what is being implemented in a project like me.)

For, you have to add a counter cache column to your goals for target taskkit (if you have not already), and target < Add another column called completed_tasks_count to / code> Or something like that. Make sure they omit both of them.

  def target & lt; ActiveRecord :: Base is has_many: work, inverse_of :: target, counter_cache: true end def work < ActiveRecord :: Base is_to: target, inverse_of :: task after_initial: set_completed_tasks_count, on: new around_save: goal_complete def set_completed_tasks_count self.completed = false if self.new_record? & Amp; & Amp; Self.completed.nil? Self.completed if end DEF yields goal_complete? & Amp; & Amp; ! Self.completed_wasself.review.increment! (: Completed_tasks_count) Elsf (! Self.completed? & Amp; amp; amp; and self.completed_was) || Self.marked_for_destruction? Self.review.decrement! (: Completed_tasks_count) End End End  

Hope this helps Happy Coding!