similar to: Overriding AR read/write_attribute - Overridden write_attribute Is Never Called

I''m attempting to wrestle an old DB into Rails. This relationship is giving me trouble: class Show < AR::Base has_many :segments end class Segment < AR::Base belongs_to :show has_one :media #this has no PK/FK relation end A Segment is "linked" to Media by Media.name, which is the result of concatenating Segment.name and Segment.part. As I said there are is no

This SystemStackError is driving me crazy. It only takes place when testing with WEBrick - I can''t reproduce it with any tests. It is caused by calling the "missing" id method (base.rb:2435) on my ActiveRecord class. WEBrick and my tests are running as the same user, with a `ulimit -s` of 10240. Plus the query works sometimes so I don''t think this matters.

Hi. Given: class Group < AR has_many :users end Is it in any way possible to retain reference to the old users when they get replaced using group.users=(new_users) ? The below doesn''t work but illustrates what I''m looking for: class Group < AR has_many :users def users=(new_users) @old_users = users write_attribute(''users'', new_users)

In my attempt to add AM:Dirty to my model I realized that AM#AttributeMethods is a bit imperfect. It''s impossible to generate attribute methods step-by-step in DataMapper-like manner. class Model include ActiveModel::Dirty def self.property(name, klass = String) define_property_accessors(name, klass) # This method will be called once, because of

Can anyone clarify something for me? I''ve been having a hard time with write_attribute. If I do (for instance in a callback): write_attribute(:user, user) Is obj.user_id set automatically too? And viceversa, if I do: write_attribute(:user_id, user.id) Does that set obj.user for me? Doesn''t seem like it''s doing that for me. Anyone understands exactly what

All, I''m finally doing my first real form in Rails - the model object that I''m entering information for has 8 validations so far. If I type in good values for all the fields but one, I get the pretty validation, and the nice field highlighting, but all of the fields are cleared, forcing me to retype all of that info. That is a big drag. Is there a standard way to get the

When booting 2.6.37 (from kernel.org) under Xen 4.1, there are apparently issues with timer interrupts being delivered to the dom0. Repeatedly causing an interrupt (for example, the ACPI power button) will allow the system to boot, as does adding "clocksource=jiffies" to the kernel command line. This is only present under Xen, not when booting the same kernel on real hardware. When boot

I am using this line on my index.rhtml page to capture the quantity required of a particular item for a basic shopping cart app: <%= text_field ''line_item'', ''quantity'', {:size=>3} %> </td> but my next screen (a cart screen) doesn''t reflect what was entered in that text field when the item is added to the cart. That is,

This seems like it must have been asked before - I really _did_ try to find it in the archives, so my apologies if it''s already out there. Utilizing ActiveRecord, I would like to specify a prefix for the column names in my table. For example, in ''Recipe 16 Integrating with Legacy Databases'' (Rails Recipes, from PragProg, by Fowler) they deal with integration with a

Guys, Say I have the following: ----- class Person < ActiveRecord::Base has_one :house end class House < ActiveRecord::Base belongs_to :person attr_accessor :color end ----- Then I have the following code: ----- john = Person.new john.house.color = "Blue" john.save ----- What I would like to have happen, is that on first call to john.house, if house hadn''t been

Would really appreciate it if someone could tell me why this is happening: I override ssn method of AR class so I can encrypt/decrypt to/from the db: class Person < ActiveRecord::Base def ssn=(value) write_attribute(:borrower_ssn, Crypto.encrypt(self.encryption_key, value)) write_attribute(:borrower_ssn_final_four, value[5,4]) end def ssn # this begin - rescue can be

<adding nouveau-devel to the Cc> Hi Ben, On 02-03-16 04:23, Ben Skeggs wrote: > On 03/01/2016 09:37 PM, Hans de Goede wrote: <snip> >> Ok, I've but an mmiotrace of the blob starting with a monitor connected >> to the troubesome connector here: >> >> https://fedorapeople.org/~jwrdegoede/mmiotrace.log.xz >> >> And a demmio-ed version (with

Hi, I have a model similar Basket shown below. If customer_type is set then it should also set customer to nil. Likewise, if I set customer, it should inspect the customer_type attached to the customer and set accordingly within Basket. However implementing it as below doesn''t seem to work. Am I missing a better way to achieve this? I had also considered using a before_save

somple question here but pretty confusing on my side. i have a model towns that is mapped to my towns table. can i add an extra variable to the class and access it in my view? basicall what i am trying to do is return a list of towns, and next to each town, display a total number of what i have in each town. ive tried both attr_reader and @total but no avail. here is my view <% for

How do you tell if an foreign key attribute has been changed? For example, lets say you have a model with attribute table_a_id. Would you do this? def table_a_id=(value) if value != table_a_id @table_a_changed = true write_attribute ''table_a_id'', value end end def table_a=(value) if value != table_a @table_a_changed = true

i am doing a couple of times the following in my models class User < ActiveRecord::Base def name=(val) write_attribute :name, val.to_s.strip end end quite clear, it strips the name when setting it. now the question: Is it possible to do something like the following .. and if yes how could i achieve it class User < ActiveRecord::Base auto_strip :name, :street end thanks... --

Hi guys, I''m trying to make an AR model which accepts a string data (from a text input) in euro date format eg <input .... value = "23/01/2006"> ( 23 Jan 2006) Reading the example from RDoc... i tried to overwrite/overload/override the = function to write in the date.. Cant get it to work because .. i dont knoe what format should it accept.. i''ve tried

When submitting billing information in the past I''ve always used attr_accessor for credit card details as they should not be saved in the database. In addition I always end up storing the card expiration date so that the date form helper works correctly. With Active Model it seems logical to create a CreditCard class to hold this data instead. **1st issue.** It seems there still

Hi all, Is there a way to invoke validations at times other than save, create and update? I know that I can do this by writing my own validation checks using errors.add_[blah], but I''d like to leverage the existing validation code. What I have is two sets of fields in a record, set A and set B. Both sets must be validated on record create. However, the trouble is that after

Hello all, I''ve been trying to use a facade column but I notice that the form helpers don''t seem to respect the facade. In the following example I''m trying to story the prices as Integer values but present them to the user as decimals. class Product < ActiveRecord::Base def price=(new_price) write_attribute(:price, Float(new_price)*100) end def price