[Rails] Re: Really stuck on nested resources
MLittle, I just picked up this thread towards the bottom and thought maybe I could say one thing. Don't ever nest more than two levels deep. I have some amazingly 'deep' applications and suffered the pains of hell until I picked up this important point. If you are still treading water, send me an email and I'll send a routes file that will make this point more clear. Good luck, David On Sep 20, 9:35 pm, mlittle mdlit...@gmail.com wrote: Agoofin: The only reason I am doing it this way is for the current_user. This is the only way I know how to make sure another user does not see a record created by someone else. If I knew another way to do this then I would avoid the nested resources. I can see where my current model is going to become a pain to manage. If I knew how to do that I would change my ways. Currently I do: current_user.children.find(child).dogs.build(params[:dog]) I know there has to be a better way but I am glad it's working now. I am new and am sure as I improve I will discover the appropriate way to handle this. Thanks for the feedback. On Sep 20, 5:32 pm, AGoofin amor...@gmail.com wrote: One other way to think about this - you shouldn't need to nest resources more then one level deep. You only deal with children in relation to parents and dogs in relation to children. Separate relationships which can be handled transparently. Plus the links you have to generate get a lot more confusing - parents_childrens_dog_path( parent_id, child_id, dog_id) or some such... On Sep 20, 1:41 pm, mlittle mdlit...@gmail.com wrote: MichaelB: THANK YOU! So much. Your solution fixed my problem and taught me a bunch about rails. Thanks again for your help. On Sep 20, 8:32 am, MichaelB michael.james.bamf...@gmail.com wrote: Hey mlttle- You can create a new dog with: def create @dog = Parent.find(params[:parent_id]).children.find(params [:child_id]).dogs.create end The console is your best friend to quickly diagnose errors: @record= parent.child.dog.build(params[:dog]) NoMethodError: undefined method `child' for #Parent:0x22b6748 .. becuase your parent model has many **children** @record= parent.children.find(child).dogs.build(params[:dog]) Michael- Hide quoted text - - Show quoted text - --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Ruby on Rails: Talk group. To post to this group, send email to rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~--~~~~--~~--~--~---
[Rails] Re: Really stuck on nested resources
2009/9/20 mlittle mdlit...@gmail.com: Maybe I'm just going about my application in the wrong way. I'm new with rails and I'm trying to make sure that Child and Dog can only be viewed my the person who creates them. That's how I ended up with resources 3 deep. My resources are actually called User, Child and Parent. User is also current_user (I use restful_authentication) and all the resources are created by the current_user. My routes are basic but are 3 resources deep: User Child Parent. So, I reference each in my controllers by current_user.child and when I started trying to access current_user.child.parent, things started to break because I really don't know how to do this. I've read some articles that say more then 1 level deep is not a good idea but I don't how to make sure records aren't viewed by other users that they didn't create. I've bought more book then I probably should and am getting frustrated. Maybe my method of making sure records are not viewed by other users is the wrong approach. I am still confused about your model relationships. Could you post the class definitions please showing the has and belongs to relationships? Colin --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Ruby on Rails: Talk group. To post to this group, send email to rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~--~~~~--~~--~--~---
[Rails] Re: Really stuck on nested resources
Hey mlttle- You can create a new dog with: def create @dog = Parent.find(params[:parent_id]).children.find(params [:child_id]).dogs.create end The console is your best friend to quickly diagnose errors: @record= parent.child.dog.build(params[:dog]) NoMethodError: undefined method `child' for #Parent:0x22b6748 .. becuase your parent model has many **children** @record= parent.children.find(child).dogs.build(params[:dog]) Michael --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Ruby on Rails: Talk group. To post to this group, send email to rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~--~~~~--~~--~--~---
[Rails] Re: Really stuck on nested resources
One other way to think about this - you shouldn't need to nest resources more then one level deep. You only deal with children in relation to parents and dogs in relation to children. Separate relationships which can be handled transparently. Plus the links you have to generate get a lot more confusing - parents_childrens_dog_path( parent_id, child_id, dog_id) or some such... On Sep 20, 1:41 pm, mlittle mdlit...@gmail.com wrote: MichaelB: THANK YOU! So much. Your solution fixed my problem and taught me a bunch about rails. Thanks again for your help. On Sep 20, 8:32 am, MichaelB michael.james.bamf...@gmail.com wrote: Hey mlttle- You can create a new dog with: def create @dog = Parent.find(params[:parent_id]).children.find(params [:child_id]).dogs.create end The console is your best friend to quickly diagnose errors: @record= parent.child.dog.build(params[:dog]) NoMethodError: undefined method `child' for #Parent:0x22b6748 .. becuase your parent model has many **children** @record= parent.children.find(child).dogs.build(params[:dog]) Michael --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Ruby on Rails: Talk group. To post to this group, send email to rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~--~~~~--~~--~--~---
[Rails] Re: Really stuck on nested resources
Agoofin: The only reason I am doing it this way is for the current_user. This is the only way I know how to make sure another user does not see a record created by someone else. If I knew another way to do this then I would avoid the nested resources. I can see where my current model is going to become a pain to manage. If I knew how to do that I would change my ways. Currently I do: current_user.children.find(child).dogs.build(params[:dog]) I know there has to be a better way but I am glad it's working now. I am new and am sure as I improve I will discover the appropriate way to handle this. Thanks for the feedback. On Sep 20, 5:32 pm, AGoofin amor...@gmail.com wrote: One other way to think about this - you shouldn't need to nest resources more then one level deep. You only deal with children in relation to parents and dogs in relation to children. Separate relationships which can be handled transparently. Plus the links you have to generate get a lot more confusing - parents_childrens_dog_path( parent_id, child_id, dog_id) or some such... On Sep 20, 1:41 pm, mlittle mdlit...@gmail.com wrote: MichaelB: THANK YOU! So much. Your solution fixed my problem and taught me a bunch about rails. Thanks again for your help. On Sep 20, 8:32 am, MichaelB michael.james.bamf...@gmail.com wrote: Hey mlttle- You can create a new dog with: def create @dog = Parent.find(params[:parent_id]).children.find(params [:child_id]).dogs.create end The console is your best friend to quickly diagnose errors: @record= parent.child.dog.build(params[:dog]) NoMethodError: undefined method `child' for #Parent:0x22b6748 .. becuase your parent model has many **children** @record= parent.children.find(child).dogs.build(params[:dog]) Michael --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Ruby on Rails: Talk group. To post to this group, send email to rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~--~~~~--~~--~--~---
[Rails] Re: Really stuck on nested resources
Maybe I'm just going about my application in the wrong way. I'm new with rails and I'm trying to make sure that Child and Dog can only be viewed my the person who creates them. That's how I ended up with resources 3 deep. My resources are actually called User, Child and Parent. User is also current_user (I use restful_authentication) and all the resources are created by the current_user. My routes are basic but are 3 resources deep: User Child Parent. So, I reference each in my controllers by current_user.child and when I started trying to access current_user.child.parent, things started to break because I really don't know how to do this. I've read some articles that say more then 1 level deep is not a good idea but I don't how to make sure records aren't viewed by other users that they didn't create. I've bought more book then I probably should and am getting frustrated. Maybe my method of making sure records are not viewed by other users is the wrong approach. On Sep 18, 2:01 pm, Jeff cohen.j...@gmail.com wrote: On Sep 18, 10:49 am, mlittle mdlit...@gmail.com wrote: I have nested resources 2 levels deep and am having problems with the controller of the deepest resource; Parent Child Dog The rails guide says this for the forms, which seems to work fine: form_for [:parent, :child, @dog] I have all the appropriate belong_to and has_many but I cannot figure out how to do this in the dog controller: def create parent = Parent.find(params[:parent_id]) child = Child.find(params[:child_id]) @record= parent.child.dog.build(params[:dog]) . end I am getting this error: undefined method `child' Not sure what the local variable child is doing? It's not being used in the 3rd line. I would have expected the code to look like this: parent = Parent.find(params[:parent_id]) child = parent.children.find(params[:child_id]) @dog = child.dogs.build(params[:dog]) This way, you're making sure that the child you find really belongs to the parent. Then, you build a new dog for that child's dog collection. Does this help? Jeff purpleworkshops.com --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Ruby on Rails: Talk group. To post to this group, send email to rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~--~~~~--~~--~--~---
[Rails] Re: Really stuck on nested resources
Could this be a pluralization issue? Did you set up your models as: class Parent ActiveRecord::Base has_many :children end class Parent ActiveRecord::Base has_many :children belongs_to :parent end class Dog ActiveRecord::Base has_many :dogs belongs_to :child end If so, then I would think that something like this might work: parent = Parent.find(params[:parent_id]) child = parent.children.find(params[:child_id]) @record= child.dogs.build(params[:dog]) ...but I am still very much a RoR neophyte. Everything I know about nested routes I learned from http://akitaonrails.com/2007/12/12/rolling-with-rails-2-0-the-first-full-tutorial, and I refer back to there each time I try to do it again. --wpd --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Ruby on Rails: Talk group. To post to this group, send email to rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~--~~~~--~~--~--~---
[Rails] Re: Really stuck on nested resources
Thanks for the reply. My models are correct, they work find at the higher levels of the hierarchy. On Sep 18, 9:01 am, Patrick Doyle wpds...@gmail.com wrote: Could this be a pluralization issue? Did you set up your models as: class Parent ActiveRecord::Base has_many :children end class Parent ActiveRecord::Base has_many :children belongs_to :parent end class Dog ActiveRecord::Base has_many :dogs belongs_to :child end If so, then I would think that something like this might work: parent = Parent.find(params[:parent_id]) child = parent.children.find(params[:child_id]) @record= child.dogs.build(params[:dog]) ...but I am still very much a RoR neophyte. Everything I know about nested routes I learned fromhttp://akitaonrails.com/2007/12/12/rolling-with-rails-2-0-the-first-f..., and I refer back to there each time I try to do it again. --wpd --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Ruby on Rails: Talk group. To post to this group, send email to rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~--~~~~--~~--~--~---
[Rails] Re: Really stuck on nested resources
On Sep 18, 10:49 am, mlittle mdlit...@gmail.com wrote: I have nested resources 2 levels deep and am having problems with the controller of the deepest resource; Parent Child Dog The rails guide says this for the forms, which seems to work fine: form_for [:parent, :child, @dog] I have all the appropriate belong_to and has_many but I cannot figure out how to do this in the dog controller: def create parent = Parent.find(params[:parent_id]) child = Child.find(params[:child_id]) @record= parent.child.dog.build(params[:dog]) . end I am getting this error: undefined method `child' Not sure what the local variable child is doing? It's not being used in the 3rd line. I would have expected the code to look like this: parent = Parent.find(params[:parent_id]) child = parent.children.find(params[:child_id]) @dog = child.dogs.build(params[:dog]) This way, you're making sure that the child you find really belongs to the parent. Then, you build a new dog for that child's dog collection. Does this help? Jeff purpleworkshops.com --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Ruby on Rails: Talk group. To post to this group, send email to rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~--~~~~--~~--~--~---
