similar to: validates_uniqueness_of serialize

Has anybody noticed validates_uniqueness_of missing in rails 3.0 rc2? I''m not sure if this is a bug or I''m just doing something wrong. Here''s what I''m doing. Class 1: class Title < ActiveRecord::Base validates_length_of :language, :is => 3 validates_uniqueness_of :language, :scope => :book_id validate :language,

Hi folks, I've attached a patch to the svn trunk that improves the performance of the serialize/unserialize interface for vector types. The current implementation: a) invokes the R_XDREncode operation for each element of the vector type, and b) uses a switch statement to determine the stream type for each element of the vector type. I've added R_XDREncodeVector/R_XDRDecodeVector functions

I noticed the following peculiarity with `serialize()' when `ascii = TRUE' is used. In today's (svn r37299) R-devel, I get > set.seed(10) > x <- rnorm(10) > > a <- serialize(x, con = NULL, ascii = TRUE) > b <- unserialize(a) > > identical(x, b) ## FALSE [1] FALSE > x - b [1] -3.469447e-18 2.775558e-17 -4.440892e-16 0.000000e+00

Dear R-Users, I need a very fast and reliable database solution so I try to serialize a data.frame (to binary data) and to store this data to an SQLite database. This is what I tried to do: library(RSQLite) con <- dbDriver("SQLite") db <- dbConnect(con, "test") dbSendQuery(db, 'CREATE TABLE frames("simID" INT, "data" BLOB)') data.bin <-

Hello I have a user table in my db. A user has a status field, status is an INT an can be between 1-5. When a new user sign up I want to use "validates_uniqueness_of :login" in user model. But I don''t want to validate the new user against users with status == 5. Can I do this with some :if or :conditions? (I prefer not to use my own validate method) -- Posted via

Hello all, I have a class Ticket < ActiveRecord::Base which has a property called :number and a property called :samples_date. a ticket number has to be unique over the same year. the year is given by the property called :samples_date I''m trying to validate the uniqueness of :number based on the year from the :samples_date property. i would like to specify the condition somehow in

Hi, While debugging a network server I'm developing I noticed something unusual - call to unserialize() resulted in an error about loading a namespace. I was a bit taken back by this - why should unserializing an object cause a namespace lookup? Are there any other side-effects of unserialize() that I should be cautious about? I've been digging through the R_Unserialize() call, I

Is there a option to make validates_uniqueness_of Case Sensitive, if so what is it, if not then how to do it without writing my own function. Regards Suraj

On Sep 24, 2:14 pm, Andy <andym...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > I''ve getting data like this: > > <![CDATA[a:1:{i:0;s:6:&quot;Sometext&quot;;}]]> > > I know in PHP I can unserialize and decode, but I''m not sure the best > way to do it in Rails. > > I''m already parsing the XML using REXML so I''m

I''ve got something like this: class Position < ActiveRecord::Base end class CartItem < Position validates_uniqueness_of :product_id end When I try to save CartItem I get this error: ArgumentError: wrong number of arguments (1 for 2) from /home/joaz/.gem/ruby/1.8/gems/activerecord-2.3.2/lib/active_record/validations.rb:758:in `exists?'' from

Hey, I have a simple web app where I would like users to sign up with a maximum of two accounts per email address. What would be the rails way of accomplishing this. Is there anyway of modifying validates_uniqueness_of to perform the proper validations? Thanks -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you

I see this on MacOS as well, so likely not platform dependent. A little more diddling to try to narrow it down: > unserialize(serialize(as.raw(1), NULL, version=2, ascii=TRUE)) [1] 30 > unserialize(serialize(list(as.raw(1)), NULL, version=2, ascii=TRUE)) [[1]] [1] 30 > unserialize(serialize(list(raw=as.raw(1)), NULL, version=2, ascii=TRUE)) Error in unserialize(serialize(list(raw =

hello all, i am new to RoR programming and am struck with the functional test whole checking for uniqeness of carriers. If it is not unique,the the bin shudn''t be created.Can someone help me in correcting my code. def test_create_failure_cycle_unique begin num_bins = Bin.count post :create, {:bin => { :carrier => carriers(:A), :cycle => cycles(:one), :name =>

I ran into an interesting error unserializing a file created with ascii=TRUE: R 3.5.1 (Windows or Linux): > unserialize(serialize(list(raw=as.raw(c(39,41))), NULL, version=2, ascii=TRUE)) Error in unserialize(serialize(list(raw = as.raw(c(39, 41))), NULL, version = 2, : ReadItem: unknown type 29, perhaps written by later version of R The same error happens when the

Hello all, I am working through the depot example in the rails book. If I add a validates_uniqueness_of to a string column in the model, and then try to create a record with a number in this string column I get an SQL error. Looks like the SQL generated to test for uniqueness does not quote the value if it''s numeric even though it''s comparing against a varchar column. It does

I was wondering if anybody knows an easy way to pass a method name as the scope option to a validates_uniqueness_of validation on a AR model? For example, I have nested models a bit like: class Survey has_many :areas end class Area belongs_to :survey has_many :questions, :order => ''position'' validates_uniqueness_of :position, :scope => : survey_id end class

I have a database field called dates in which I am trying to serialize an array of DateTime objects. When I unserialize them, they are coming back in as Time objects. I know this, because I am getting errors that say "comparison between Time and DateTime failed. Why is this happening? Is there a way to prevent it?? Thanks Shelby -------------- next part -------------- An HTML attachment

Hi folks, I have a question regarding validates_uniqueness_of, and similar before-filter-like events attempting to guarantee some DB state prior to modification. >From my reading of ActiveRecord, validate_uniqueness_of appears to cause a SELECT on the underlying table attempting to ensure that a record with ID(s) specified in the validates_uniqueness_of statement is not already present, prior

Hello, I am new to Ruby on rails and this is therefore probably trivial. Lets say I have 3 tables - users[id,name, age, ...], interests[id,name,description, ...], and finally a table user_interests[id,user_id,interest_id] to link a user to a set of interests. Now there is no problem to put validates_uniqueness_of :name in the user-model to ensure that I only have one Lenny, but how do I

> ------------------------------ > > Date: Wed, 17 Jan 2024 11:35:02 -0500 > > From: Dipterix Wang <dipterix.wang at gmail.com> > > To: Lionel Henry <lionel at posit.co>, Tomas Kalibera > > <tomas.kalibera at gmail.com> > > Cc: r-devel at r-project.org > > Subject: Re: [Rd] Choices to remove `srcref` (and its buddies) when > >