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I know ActiveRecord doesn''t support composite primary keys, but I need to use one, and I need it ASAP. I don''t need any composite foreign keys, luckily; what I have is a table that stores old versions of rows in another table, so the composite key is an id + date stamp. Would someone tell me a hack I can use to support this? -- View this message in context:

Hello, I have tried implementing the shopping cart ajax example and have run into some problems. The only differences with the shopping cart is My list of products are generated from a partial view The images of the products come from an http link. However, Iam seeing a strange behavior when I drag and drop the elements to my cart. On the first drag and drop the image successfully reverts to

Hello, Sorry, but I think my first answer is wrong. You probably want something along the lines of sp <- split(priceStore_Grps, priceStore_Grps$StorePC) res <- lapply(seq_along(sp), function(i){ sp[[i]]$StoreID <- paste("Store", i, sep = "_") sp[[i]] }) res <- do.call(rbind, res) row.names(res) <- NULL Hope this helps, Rui Barradas On 5/26/2018

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Hi all, I am creating a multiple-storefront shopping cart in Rails, and have run into a small problem. In addition to the cart, line-item, product, and order models (pretty much standard for this sort of thing), I have a Storefront model which locates the current storefront (by examining the domain name), and initializes itself. This works fine throughout, and by declaring a

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Hello, See if this is it: priceStore_Grps$StoreID <- paste("Store", seq_len(nrow(priceStore_Grps)), sep = "_") Hope this helps, Rui Barradas On 5/26/2018 2:03 PM, Jeff Reichman wrote: > ALCON > > > > I'm trying to figure out how to rename groups in a data frame after groups > by selected variabels. I am using the dplyr library to group my

I am sorry to trouble the list with this, but I'm hoping that someone will be able to help me track down this reference. I am looking for a good reference on repeated measures, and many of the relevant functions in R refer in their "help" to: Hand, D. J. and Taylor, C. C. (1987) _Multivariate Analysis of Variance and Repeated Measures._ Chapman and Hall. This sounds

I wanted to post the beginings of my latest IVR Project for an automated Time Clock software. The customer has over 300 Field Reps that call in everytime they arrive on location and whey they leave that location. This is handled by the receptionist now and she logs in them and out of there Time Clock Software. Which takes up majority of her day. The customer has requested a automated way of

Hi, I'm trying to set up AR(1) as a correlation structure in modeling some data (attached file data.txt in text format) with lme, but have trouble getting it to work. Incent, Correctness, and Oppor are 3 categorical variables, Beta is a response variable, and Time is an equally-spaced variable with 6 time points (treated as a categorical variable as well). Basically I want to model the

Hi all, I've got some functioning code that I've literally taken hours to write. My 'R' coding is getting better...it used to take days :) I know I've done a poor job of optimizing the code. In addition, I'm missing an important step and don't know where to put it. So, three questions: 1) I'd like the resulting output to be sorted on distance (ascending) and

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Shoval, Interesting Mention. I agree, most people don't have CO exp. And I wish daily I had enough. Understand that what I mean by my e-mail is consumer side FXS ports, in broader terms, I mean, customer picks up a phone line, it signals a channel bank which signals *. 24 of those channels. Not channels equipped to Send Signal to the CO that a loop has been made.. meaning FXO. 24

I''ve uploaded the B1.12 version of AWDwR. The major changes include: - Justin Gehtland''s new chapter on Web 2.0 - James Duncan Davisdon''s chapter on deployment (this is an interesting one---JDD has strong opinions on how a Rails application should be deployed, and the chapter mirrors this. You''ll find it short and easy to follow). - I changed the

I''m having a problem with one of the migration files from the depot application. ** Invoke db:migrate (first_time) ** Invoke environment (first_time) ** Execute environment ** Execute db:migrate == AddPrice: migrating ======================================================== -- add_column(:products, :price, :decimal, {:scale=>2, :default=>0, :precision=> 8}) rake aborted! You

Hi, Rails produces to diff Gets on the Webrick: AWDWR Chpt 6 strange results: First browser call to /Admin shows correct form; - And WEBrick reports: "Get /admin HTTP/1.1" 200 485 - -> /admin Subsequent browser calls to /Admin show: NoMethodError in AdminController#index undefined method `each'' for #<Mysql:0x37aba80> - And WEBrick reports: "Get /admin

Following the tutorial app in Agile Rails, I''m trying to figure out the best way to get the flash notice to go away after an "Invalid product" is selected (eg. when a new, valid product is selected). This is after Task D, Chapter 9, in the 2nd Ed Beta. I''ve come close to getting to work right, but I think I may still be missing something in the control flow of