similar to: When saving parent fails, children will still be updated

One of my models has a column that is updated very frequently from a separate process, so it is important that when a record is saved in rails, this column should be left alone. In the update method of the controller I have: @record = MyModel.find(params[:id]) @record.update_attributes(params[:my_model]) params[:my_model] doesn''t have a reference to the column I''m talking

I really need your help guys... I spent 6 hours on this simple update command today that should work. It works fine in my other controller, but doesn''t work in this one for some reason. Here is my controller code for the list view, and then the update command: ====== def edit @user = User.find(params[:id]) end def update @user = User.find(params[:id]) if

disclaimer: am in the midst of my first ruby/rails project I have a situation where I want several child records to be created when a new parent record is created. The following represents my first stab at coding it, am I on the right track? Here is the model: parents ---------- id name children ---------- id parent_id name class Parent < ActiveRecord::Base has_many: children end

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

Hello, I am trying to deal with a database table that contains a date in the form of the number of seconds since epoch. Data is inserted in this format by an existing script that I can''t change, so a schema change isn''t realistic. I would like to allow humans to view and edit this data in the form of an actual human-readable date. I figured a facade column would be the

Hello: I am developing a web application to book machines for an event. so I have an event model class Event < ActiveRecord::Base has_many :datetimes ... end and a datetime model class Datetime < ActiveRecord::Base belongs_to :event ... end I have developed a view with the event information and information for the datetimes. and in the event_controller when I capture a datetime I

Hey folks, I''m trying to keep track of couple of different kinds of "entities" in my rails app: "people", "organizations", and "committees". I have a single Entities table in the database, and I''m using Single Table Inheritance to keep the different subclasses in the same table, with a field "type". My problem comes when

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

Hello all, Is there a method for updating all the attributes from a hash without saving to the database? (the counterpart of update_attributes but without saving). What I want to do is: person = Person.find(params[:id]) person.update_without_saving(params[:person]) #update the in-memory object. # Process person object ....... person.save I know that when you are creating a new object, you can

Hello ! I''m trying to implement something similar to the "multiple updates" section of the Web2.0 chapter of the Agile book. I implemented my version, and nothing is happening. No javascript errors, my logs look fine, page is rendered fine... just no Effect.Highlight. Here is the code: views/causes/cause_home/index.rhtml =============== <%= form_remote_tag(:complete =>

Restricting size of an uploaded file, is how is that possible? If I do not want a user to upload a file larger than X bytes, can it easily be done? If I also would like restrict the types of files that can be uploaded, how may I do so? Thank you, Sharkie

Under Rails 2.3.2 using a completely brand new project, I have 2 models: class Author < ActiveRecord::Base # name:string end class Book < ActiveRecord::Base # title:string belongs_to :author # author_id end And a simple test where i create a Book with an Author using the belongs_to and then update the foreign key directly: require ''test_helper'' class BookTest

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/.

Hi guys! class Parent < ActiveRecord::Base has_many :children end class Child < ActiveRecord::Base belongs_to :parent end I do: parent = Parent.find(1, :include => :children) parent.children.find(3).update_attribute(''name'', ''Tom'') (or parent.children.find(3).name = ''Tom'') parent.children.find(3).name => ''old

I have this code in a view: <% for topic in @topics %> <%= topic.id %> <%= topic.dr_title %><br/> <ul> <% for doc in topic.child_documents %> <%= doc.dr_title %><br/> <% doc = nil %> <% end %> </ul> <% end %> Though the topic titles and IDs display correctly,

I''m having performance issues with one of my actions, and think I''ve narrowed it down to too many sql queries. I have a form with ~60 lines, which takes ~6 sec to save, 60%+ of that is db io. There''s 650+ lines of log data, most of which are AR/queries. The app is a simple dual entry book keeping thingy, and the form in question contains a journal entry along with a

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/.

Hi List, I have a table that contains several fields that must be initialized when first created, but may not be altered afterwards (when updating the other fields) because they can be changed by external processes. I noticed that the ActiveRecord update commands (even update_attribute) only seem to work by loading the complete record, changing fields that need to be changed and doing a full

I am trying to create a record with association. Within the create method, I would also like to pre-populate dependent (has_many) records from a template in the database. The child records are <u>mysteriously rolled back </u> if I insert them in a loop. If I try to insert a single child record, it works.I have read the books and tried to google my way out of this but am at a dead

Ahoy, i''m trying to save a many to many between "talent" and "vital stat" talent_controller.rb def edit @talent = Talent.find(params[:id], :include => [:talent_type, :vital_stats]) @talent_types = TalentType.find_all @vital_stats = VitalStat.find_all if request.post? @talent.attributes = params[:talent] @talent.attributes =