similar to: Implementing conditional read-only attributes of ActiveRecord objects

Hi, I have a AR model that I want to limit changes to be only via instance methods that I''ve added. How do I prevent my other sw from setting the instance''s attributes? I know about #attr_protected and #attr_readonly. But the first leaves the individual setters as they were and the second stops all changes. I want something like "attr_private" Thoughts? Thanks,

Is there a way to prevent an attribute from being changed from outside the class instance? So that after a record is created, the attribute can be read but cannot be changed from outside the class instance. At first glance, "attr_readonly" seems to be the solution. However, will "attr_readonly" also prevent the attribute from being changed even from inside the class? In

Hi, I have this rails query: @birthdays = Birthday.find :all, :conditions => ["user_id = ? and birthdate = ''2006-02-01'', @user_id], :limit => @birthday_pages.items_per_page, :offset => @birthday_pages.current.offset You can ignore the user_id, limit and offset part.

i am using date_select to allow someone to select their birthdate in a form. however date_select uses 3 wierd labels in the forms like follows: <select name="user[birthdate(1i)]"> <option value="1940">1940</option> <option value="1941">1941</option> . and then the month is user[birthdate(2i)] and so on. My issue is i dont know the

A small patch to fix attr_readonly when used in conjunction with optimistic locking Please Review: http://dev.rubyonrails.org/ticket/10188 +1 if it works for you. nick. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" group. To post to this group, send email to

I notice that I always want to prevent the unique key of a table from being changed. Does that mean I always have to have attr_readonly right after validates_uniqueness_of ? Is there a single function that replaces both of these but has the same affect? Thanks. -------------------------------------------------------------------------------- Developing with Rails 2.3.2; Ruby 1.8.7 (2009-04-08

when retreiving a date from a DATETIME field in a database, is there a way to set the date to the value of the DB in the view? It seems to always default to the current date... if I have a field called birthdate in the users table and i do @user = User.find(@params[:id]) in my view i have a <%= date_select ''birthdate'',''user'' %> but dont know how to

Hi, Has anyone implemented some sort of automatic class to dynamic table mapping ? The idea is to have a single table capable of storing various unrelated classes. Some sort of Extreme polymorphism. I''ve used this with other languages. E.g. osproperty in Java. The idea is the following In the DB create table dynamicobjects ( id int, object_type varchar(255), key_name

Dear RUsers, I guess this is an easy question for someone a little familiar with programming...(which I am not)... I've got 2 colummns, one shows just dates(SST_date, Class 'Date' num), the other one shows the SeaSurfaceTemperature (SST, num) at that certain date. SST_date SST 2008-01-01 22.2 2008-01-02 21.8 2008-01-03 22.8 2008-01-04 22.9 2008-01-05 23.1 2008-01-06 23.2 ...

Here''s the issue: When I submit a form for updating, @person.update_attributes doesn''t work. But the next nested clause for updating images DOES work. How is that possible? However no matter what I do the Person object will not change its attributes. def edit @person = Person.find(params[:id]) if request.post? @person.update_attributes(params[:person])

Does anyone know if there are any special considerations with Random Forest and correlated fields or rather derived fields? For example if we are trying to predict who might leave our company to go work for another company some of the variables we may look at are below (in addition to others). Do we need to be cautious with comingling these especially since, for example with Age variable, all are

I am using date_select and in some instances it only shows about 10 years worth of choices. Same form on other users shows the whole range. date_select looks like this <%= date_select ''user'',''birthdate'' , :start_year => 1940 %> I would expect to always see 1940-2006 or so , but i dont always do. Is there a way to force the range or explain why i

Hi, I''m creating a date type field to put birthdate, but the years on this field only go to 2003, what should I do?? --~--~---------~--~----~------------~-------~--~----~ 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-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To

I want my date fields to default to NIL or "", because the presence of a date means something. My problem is that rails is defaulting the fields to today''s date automatically when I create a new record through the scaffold. I tried removing the default ''0000-00-00'' and changing NOT NULL to NULL, but both columns get today''s date as the default

I''am try using collection_select helper, but the option selected_value not work i try like this: <%= collection_select("user", "gender_id", @genders, "id", "description", {:include_blank => true, :selected_value => "2"} []''s Bruno -- Posted via http://www.ruby-forum.com/.

Hello everyone, I''m almost cracking my head trying to do this birthdate validation. It turns out that I can only accept users with at least 18 years old and I''m trying to validate it writing this code on my user.rb fil at app/ models class User < ActiveRecord::Base validates_presence_of :full_name validates_presence_of :street_address validates_presence_of :city

hi, I want to know just enter a string value entering a numeric value is make with the function scan () or scan (nmax = ..) but it does not work for string my goal is to enter three string: name and surname and date of birth I try with this code but it shows me errors print ("enter the name") name <- scan (nmax = 1) print ("enter the first name") firstName <- scan

As an R beginner, I feel brain dead today as I can not find the answer to a relatively simple question. Given a array of string values, for example lets say "mary", "bob", "danny", "sue", and "jane". I am trying to determine how to perform a logical test to determine if a variable is an exact match for one of the string values in the array

Hi, I have a field for the user which is their birthday. I am letting them edit it and then save it if they want. However, the form displays the current date/time, and when they save the form without changing the birthdate (because they do not wish to set it), the current date/time gets saved to the db. How do I do this? I thought about having a hidden field which would be the current date/time

how can i calculate the age of a person using database " birth date" my teble is user and column is bday .... now i want to calculate the age will some one please tell me how can i calculate the age.. actually i want to compare my two database fields birthdate and joining date ......that is why i need this.... will someone please tell me how can i do that