similar to: Update_attributes on multiple models, revert back on error

Hi everyone, I have a order with order_lines use case. On changing the lines, I want to be sure no one else changed the order. So I use lock_version on the order. This works fine if something is changed on the order record. But now i have the situation that I delete, alter and add order lines without changing the order record itself. I have to check and increment the order#lock_version however

I notice that ActiveRecord::Base.update_attributes() calls save(). What if I want to get an exception if the save fails? Is there a way to get the update_attributes() function plus the save! function? Thanks, Wes -- Posted via http://www.ruby-forum.com/.

I am trying to wrap the updating of two models in a transaction and when the transaction fails it is not rolling back. My method is : def update_attributes(user,params) @user = user @company = user.company begin User.transaction do @user.update_attributes!(params[:user]) @company.update_attributes!(params[:company]) end true rescue false

Hi! I have updated my app to rails 2.3. I have form that has few nested models and I am happy that I can just write accepts_nested_attributes_for :tasks, :allow_destroy => true, but update_attributes! does not update my nested model. I have tried update_attributes, and it works. Any ideas? Few lines from log: update_attributes: SQL (0.1ms) BEGIN Education Update (0.3ms) UPDATE

Hi, IN one of my unit tests I get an ActiveRecord::StaleObjectError: Attempted to update a stale object object.save! in object I have apart from other stuff an after_save method, which calls object.assosication.update_attributes(...) If I remove that line from my code my tests succeeds. Unfortunetly, I do not understand why an update_attributes call can generate an StaleObjectError. Maybe

Hi, I am trying to use the update_attributes on object with nested attributes and I am getting the following error: ProductPrice expected, got HashWithIndifferentAccess Here''s the situation (simplified): class Product < ActiveRecord::Base belongs_to :productPrice end class ProductPrice < ActiveRecord::Base has_one :product, :dependent => true

It seems that attachment_fu is a pretty popular plugin (it''s great), but I''ve been having a terrible time trying to figure out an issue when using "update_attributes". I''m storing files on the file system rather than in a database. It seems that when "update_attributes" is called with a new file, upload_data= tries to copy a file that

I''m trying to update a record, but it just stops with "ActiveRecord::ReadOnlyRecord". I don''t understand why, because I never wanted my model to be read only. Relevant code: Controller: def edit @project = find_project if request.post? @project.update_attributes(params[:project]) if @project.save flash[:message] = _(''Project was

My application is so far mostly built from scaffold. When I edit an existing record (I''ve turned off validation) the update method is called. I get this error: NoMethodError in <module>/<controller>#update You have a nil object when you didn''t expect it! You might have expected an instance of Array. The error occured while evaluating nil.+ I get the same error when

For some strange reason I can''t get update_attributes to work. Any reason why that might be? here is my code: controller: def update @user = User.find(params[:id]) respond_to do |format| if @user.update_attributes(params[:user]) flash[:notice] = ''Your Information was successfully updated.'' format.html { redirect_to(user_url(@user))

I have a Person model. Person has_many lab_urls. The LabUrl model has a title and a url, which are both required. Now, I want to update a LabUrl object and stick some invalid data in there. And I want the person that has that invalid LabUrl to now be invalid, too. That doesn''t seem like too much to ask for. How can I do that? Right now, this is happening: >> me = Person.find(1)

Is it possible to update the parameters from a form without saving? @model.update_attributes(params[:model]) will save the model after updating its attributes. I''d just like the attributes updating without a save. Thanks Chris -- Posted via http://www.ruby-forum.com/.

Hello, I have this problem that my rails application works fine in development environment on my local Linux and windows system but when I uploaded it to work on the server in production environment I have this problem as listed in the pasted log file at the end of this entry: NoMethodError (undefined method `[]'' for nil:NilClass): /app/controllers/admin_controller.rb:201:in

Got a weird situation with an update put to a controller with a form with nested attributes. On the data below, I am updating data for both items (''0'' and ''1'') in rosters_attributes (in the example below I am updating the ''name'' attribute to a new value in both cases. What I am stuck on is that ''1'' gets its data updated,

I''m creating a simple portfolio site for a painter. I have a painting and an image model with following relationship: Painting has_many :images Image belongs_to :painting On the edit screen the user can edit the Painting data as well as upload pictures for a thumbnails and full size image. The Image model extracts filename, width, and height from the uploaded file, saves those

Hi, In Agile Web Development with Rails section on Transactions (p 381) there are two main examples. 1) making changes in two records in the same database table 2) making changes in two records each in a different *database* I want to do what is in between: changes in two records each in a different table of the same database. Suppose they are apples and oranges tables. How do I write this?

Just in case it saves someone else the several hours of insanity I just went through, update_attributes will not save unless the model validations are satisfied, but update_attribute (the singular form) will save the attribute to the database even if the model validations would fail! This appears to be a feature, not a bug (http://api.rubyonrails.com/classes/ActiveRecord/Base.html) although

I dont know if its me or the dodgy win-32 intall of ruby/mysql, but I can''t seem to get update_attributes to work. In my user controller, I have: def update @user = User.find(@params[''user'']["id"]) if @user.update_attributes(@params["user"]) flash["success"] = "Updated Successfully" redirect_to :action =>

Hope someone can tell me what''s up, because this has me baffled. I have an Image model, and a Provider model. Both are defined as "has_and_belongs_to_many" relating to each other. In my image form partial, I have a bit of AJAX generating the provider_ids array dynamically from a provider AJAX search on the same page. So for example, each time I click on a provider name that

I''m having problems in a controller i am writing. i get this exception: wrong number of arguments (1 for 0) ## this does not work: @voicemail_user = VoicemailUser.find(session[:asterisk][:user_id]) if (@voicemail_user.password == params[:pwd][:current]) @voicemail_user.update_attributes({"password" => params[:pwd][:newpwd2]}) end ## but this works: