similar to: Some random rails, and maybe Ruby, questions..

This change helps to make libguestfs package build reproducible. See https://reproducible-builds.org/ for why this is good. Without this patch, building today's libguestfs in 2033, claims Copyright (C) 2009-2033 Red Hat Inc. which cannot be correct. This affected files like /usr/include/guestfs-gobject.h /usr/lib/perl5/vendor_perl/5.26.2/x86_64-linux-thread-multi/Sys/Guestfs.pm

Hi, How can I validate date in model class Thanks. Sainaba. -- Posted via http://www.ruby-forum.com/.

This seems like such an obvious idea that I''m having trouble believing I''m the first to think of it. Why not take ranges containing Float::INFINITY and translate them to the appropriate greater than or less than comparisons? Example: class Person scope :voters, -> { where(born_on: (-Float::INFINITY..18.years.ago)) } end This would generate something along the lines of

In my RoR app I would like to change a drop down list, which dispays a list of colors selected from the database. Instead I would like to create a radio button for each color. The user is allowed to check one color and this will be saved back into the database as the color for this user. I don''t know how to do this. Currently it looks like this: <%= select(:user, :color_id,

Dear group, Is there a way I could avoid the sort of duplication illustrated below? i.e., I have the same dplyr::summarise function on different group_by arguments. So I'd like to create a single summarise function that could be applied to both. My attempt below fails. df <- data.frame(matrix(rnorm(40), 10, 4), f1 = gl(3, 10, labels = letters[1:3]), f2 =

Hello, How can I save an ActiveRecord without trigger before_save, after_save, etc? Thanks for the help. --~--~---------~--~----~------------~-------~--~----~ 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 unsubscribe from this group,

Hi there. I am a RoR newbie and come from the Java/C# perspective. After digging into Rails I would like to convert an ASP.NET project -that served as a protoype- to RoR. The only thing that I haven´t got a good solution for is handling calendar events. With that I specifically mean creating, moving an event or a set of events as well as recurrence handling - similar to Google Calendar if you

Hi Lars I am not very sure what you really want. However, I am suggesting the following code that enables (1) to obtain the full summary of your data and (2) retrieve only mean of X values as function of factors f1 and f2. library(tidyverse) library(psych) df <- data.frame(matrix(rnorm(40), 10, 4), f1 = gl(3, 10, labels = letters[1:3]), f2 = gl(3, 10, labels

Hi Lars, Two comments: 1. You can achieve what you want with a slight modification of your definition of s(), using the hint from the error message that you need an argument '.': s <- function(.) { dplyr::summarise(., x1m = mean(X1), x2m = mean(X2), x3m = mean(X3), x4m = mean(X4)) } 2. You have not given a great test case in

Hola, Tengo un data set con información de transferencias monetarias por paciente provincia y modalidad de atención. Necesito hacer en una misma operación una suma de dinero por provincia y modalidad y a su vez una cuenta de pacientes por provincia y modalidad. Esto funciona bien: transferencias<-becas_modalidades %>% group_by(PROVINCIA,Modalidad) %>% summarize(dinero =

Hi, I tried this: # extract date from the time stamp dt1 <- cbind(as.Date(dt$EndDate, format="%m/%d/%Y"), dt$EnergykWh) head(dt1) colnames(dt1) <- c("date", "EnergykWh") and my dt1 becomes these, the dates are replace by numbers. dt1 <- cbind(as.Date(dt$EndDate, format="%m/%d/%Y"), dt$EnergykWh) dput(head(dt1)) colnames(dt1) <-

hello, Suppose I have a table that looks like this: center name email Health Jon jon@test.com Health Bob bob@test.com Admin Jane jan@test.com Admin Jill jill@test.com I would like the output to look like this: Health Jon jon@test.com Bob bob@test.com Admin Jane jan@test.com Jill jill@test.com when i using cold fusion, this was easy via a tag called cfoutput. when i was using java, this was

Buenas para tod en s, tengo una consulta para poder optimizar tiempos. Ejemplo tengo el siguiente dataframe: distrito<-c("A","A","A","B","B","B","C","C","C","A","A","B","B","C")

Yes but this exageration precisely misses the point. Concerning your examples: * I love fread but I think it makes a lot of subjective choices that are best associated with a package. I think it changed a lot with time and can still change, and we have great developers willing to maintain it and be reactive regarding feature requests or bug reports *.group_by() adds a class that works only (or

Hi, I have one problem with validation I am creating e-shop and I have products. This view look like this: <% for product in @category.products %> <div class="produktyBox"> <%= product.title %><br /> Price: <br /> <div style="color:red; font-size:large; font-weight:bold; margin- bottom:5px"><%=

so I am trying to sum month over month the amount that a user has posted. So for example: User 1: Jan $3000 Feb $4000 March $1500, etc. I can get this to work if I sum totals (aggregate of all users) but just not by user. Here is my code in the controller: def index @users = User.find :all, :order => ''name ASC'' @deal_groups = Deal.find(:all).group_by {|t|

Hi.. I need some support... table: week_id, user_id, project_id, hours ex. => 33, 2, 1, 10 34, 2,1,15 33, 2, 2, 20 35, 3, 1,20 etc. Want to display a sum of hours per week_id per user_id I have: @hours = HourUser.includes(:user).group_by { |h| h.week_id } @hours.keys.sort.each do |hour| @hours[hour].collect(&:stunden).sum Hours are summed up, but not sorted by user_id.. How to get

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

Hello, I would like to get a window handle from another app outside of wxRuby and convert it into a wxRuby Window handle so that I can use it as the parent Window for several wxRuby child windows. Basically I want to use the FRAME_FLOAT_ON_PARENT window style so that my wxRuby windows become associated with the outside app kind of like toolbars, e.g., they don''t show up in the

I''ve got a publications table that contains an author_id foreign key and a pubrole_id foreign key. What I want to do is query the DB using AR so that I can get a list of all publications that belong_to a particular author, and group the results by the pubrole.role_name (Author, Joint Author, Editor, etc.) so that the results look something like: Author book1 info book2 info etc.