similar to: sql query in a more "rails 3 way"

Anyone have an idea on this? Got a weird situation where on a specific model I can not create an instance using params, yet it works fine on other models. The model which does not work is a stock model, there is no logic in it. Ruby 1.8.7/Rails 3.0.5. Does not work: (rdb:1) PaymentTransaction.create(:purchase_id => 3) #<PaymentTransaction id: 2, purchase_id: nil, action: nil, amount: nil,

On 3 January 2018 at 00:52, Duncan Murdoch <murdoch.duncan at gmail.com> wrote: > On 02/01/2018 6:38 PM, Martin M?ller Skarbiniks Pedersen wrote: >> >> Hi, >> >> I am trying to understand S3 classes. I have read several tutorials >> about >> the topics but I am still a bit confused. I guess it is because it is >> so different from >> Java

On 02/01/2018 6:38 PM, Martin M?ller Skarbiniks Pedersen wrote: > Hi, > > I am trying to understand S3 classes. I have read several tutorials about > the topics but I am still a bit confused. I guess it is because it is > so different from > Java OOP. What you do below isn't S3. S3 is a system where the classes are secondary to the generic functions. Methods

Hi, I am trying to understand S3 classes. I have read several tutorials about the topics but I am still a bit confused. I guess it is because it is so different from Java OOP. I have pasted my attempt at creating a bank-account class below and my problems are: 1. What should be added some plot.default() calls the account$plot() method ? 2. What should the account$plot() be implemented to

Hello Ulrik, Can you please explain this code means how and what this code is doing because I'm not able to understand it, if you can explain it i can use it in future by doing some Lil bit manipulation. Thanks data_help <- data_help %>% mutate(Purchase_ID = 1:n()) %>% group_by(Purchase_ID) %>% do(split_items(.)) cat_help %>% gather("Foo",

Pido ayuda para calcular el SALDO *DATAFRAME:* ASIENTO FECHA CUENTA CONCEPTO ARS_DEB ARS_HAB SALDO 1 1 2020-01-01 40100006 Asiento de Apertura 0 199517. -199517. 2 231 2020-01-13 40100006 15/01 CH53677071 GALICIA 14054. 0 14054. 3 231 2020-01-13 40100006 20/01 CH22406030 CREDICOO 9458. 0 23511. 4 231 2020-01-13

Tengo que preparar un Dataset que termine siendo un resumen de cuenta contable a partir de los datos del diario contable de una empresa que el script va filtrando cuenta por cuenta. He podido importar los datos con variables: fecha , concepto, valor debe, valor haber y me falta una variable que sea el saldo. Sucede que el saldo se tiene que calcular fila a fila, es decir sumando el valor debe y

Hi Hemant, the solution is really quite similar, and the logic is identical: library(readr) library(dplyr) library(stringr) library(tidyr) data_help <- read_csv("data_help.csv") cat_help <- read_csv("cat_help.csv") # Helper function to split the Items and create a data_frame split_items <- function(items){ x <- items$Items_purchased_on_Receipts %>%

Some mistake: > I expect this output: [1] 100 Martin Saldo is: 100 but I get [1] 0 Martn Saldo is: 0

Function arguments are not pass-by-reference... they are pass-by-value. You need to return the altered object to the caller when you are done messing with it. Note that R is a data processing language... your example will not scale to real world use cases because you make no use of vectorization to handle multiple accounts. It is better to focus on the functional aspect of computing and let the

In the below code fragment, print(arg) always prints the last element of rekeningen$rekening. Is this because of lazy evaluation? I.e. arg is evaluated at the time the button is pressed? And, if so, how can I avoid this? I tried function() {force(arg); print(arg)} but that didn't work either. Thanks, Jeebee. for(rek in seq(1,nrow(rekeningen))) { arg <- rekeningen$rekening[rek]

An application that run without flaw last week has been reported to crash with an error that says that a conversion from char to datetime has given a date outside range. This very application runs OK today in production (fortunately :-), and the difference in both SQL Servers is just that the one where the exception has started to appear has Spanish conventions. I can''t give

by using these two tables we have to create third table in this format where categories will be on the top and transaction will be in the rows, On 30 August 2017 at 16:42, Hemant Sain <hemantsain55 at gmail.com> wrote: > Hello Ulrik, > Can you please once check this code again on the following data set > because it doesn't giving same output to me due to absence of quantity,a

Buenos días, en medio del trabajo se me ocurre la idea de ocultar parte del código de un scrpit de programación, esto ayudaría a la validación de los resultados y del paso a paso. Es posible hacer esto? o encriptar de alguna forma? si bien va en contra de los principios del proyecto R tal vez se puede hacer. Saldos y gracias Andrés [[alternative HTML version deleted]]

Hi people I want to know which is the best gem or plug-in to store and track register changes for a rails 3.0.9 app Hope you can help me, thanks -- 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-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this

Estimado Andres Hirigoyen Lo que comenta Carlos Ortega es una buena opción, yo la use, pero me crea una duda, supongamos que compilo de la línea 50 a la 100 porque ahí está la función, luego para aplicarla llamo a la función compilada y el proceso mejora, pero mi duda está en que el código que compile (el original) continúa estando al usuario, y este podría tocarlo y recompilar sin mucho

INFORMACAO CONFIDENCIAL Prezado(a) Amigo(a): Esta carta/e-mail nada tem de semelhante As muitas "aldrabices" que circulam pela Internet. Ela ? uma mensagem rara que tem um conteUdo que pode modificar a sua vida para melhor. Assim, peco-lhe um pouco de paciencia, e que a leia com atencao, muita atencao, e no final, muito provavelmente, se sentira recompensado(a). Este e um assunto que

INFORMACAO CONFIDENCIAL Prezado(a) Amigo(a): Esta carta/e-mail nada tem de semelhante As muitas "aldrabices" que circulam pela Internet. Ela ? uma mensagem rara que tem um conteUdo que pode modificar a sua vida para melhor. Assim, peCo-lhe um pouco de paciencia, e que a leia com atencao, muita atencao, e no final, muito provavelmente, se sentira recompensado(a). Este e

I have a SQL Server column named StartTime of (SQL Server) type datetime If I attempt to set the attribute using public def StartTime=(time) write_attribute(:StartTime, "{ts ''1899-12-30 #{time.hour}:#{time.min}:#{time.sec}''}") end it''s inserting a NULL value. Anyone else able to successfully insert a date time value into a SQL Server table using

Hi people I have a problem with the Jquery "Datepicker". If I use datepicker in a simple-form, I have no problem... but I need to use it in a nested form that add fields dynamically, and everytime I add new fields I have a field that needs to use datepicker. I''ve reading the web, and many people have the same problem, but nobody get a solution for this issue Could you help