similar to: Every other week recurring event

Hi! I have a table with visits with a visited_at: attribute which is a datetime field. They seem to be stored as UTC. Now I want to count all visits each day and return something like: { 2013-01-01: 8, 2013-01-02: 4, 2013-01-07: 9, ... } So, I did it like this which kind of works...: def self.total_grouped_by_day(start_date, end_date) visits = where(visited_at:

Folks, i thought it should be straightforward but after a few hours poking around, I decided it's best to post my question on this list. I have a data frame consisting of a (large) number of date columns, which are read in from a csv file as character string. I want to convert them to Date type. Following is an example, where the first column is of integer type, while the rest are type

Dear all; I am searching for a way to extract wind direction and speed from a wind rose plot. I have a graph and I want to make a dataframe of 5 years with hourly intervals. > start_date <- as.POSIXct("2019-01-01 00:00:00") > end_date <- as.POSIXct("2023-12-31 23:00:00") > time_sequence <- seq(from = start_date, to = end_date, by = "hour") > df

Hi all, I have a situation with a recurring billing application where I need to test if one range of dates "overlaps" another range of dates. Does anyone know a rails find or mysql select statement that will test for this? Here are the details: * Recurringcharge items have a start_date and an end_date that represent the period of time that the charges should occur. * Statement items

Hello It seems that datetime_select, is creating an instance of the Time class. Why would that be? I found this while building a site where people can create vigils (prayer vigils, peace vigils, etc). When I added a validation method that compared start_date to created_at, it generated the error: ArgumentError (comparison of Time with DateTime failed): I was able to put a breakpoint in the

Hi, I have the following problem. In a csv file I have under column A, the date, and column B, the prices. Thus, for example, the file looks something like this -> 1/31/04 2.5 2/1/04 2.6 ... 4/12/04 3.5 Basically, I use the function inputframe = read.csv( ) which reads the csv file into the inputframe. My question is, how can I make a function that has, as inputs,

I have 3 models, class Host ref: string address: string, name: string primary_key=''ref'' has_many :rooms, :class_name=>"Room", :foreign_key=>''host_ref'' Class Room ref :string host_ref: string capacity: integer primary_key=''ref'' has_many

I''m running into an issue undefined local variable or method `directoryid'' for #<EditorialsController:0x23f1bf8> I have two Models on a legacy database and only one controller called editorials with two actions index and display. I''m trying to pass in a parameter from the results of my search and getting the above error. Example: two tables one is editorial the

I am building an application and I have generated the scaffold for a product. In the list method I include something like my_date = Datetime.now and the result I get from the webrick is an error uninitialized constant Datetime Do I have to add a line with a require? I am new at ruby on rails thanks in advance -- Posted via http://www.ruby-forum.com/.

A wind rose plot omits time information. Your request is simply not possible. On October 30, 2024 3:48:03 AM PDT, javad bayat <j.bayat194 at gmail.com> wrote: >Dear all; >I am searching for a way to extract wind direction and speed from a wind >rose plot. I have a graph and I want to make a dataframe of 5 years with >hourly intervals. > >> start_date <-

Hi! If i have 2 tables i.e. product and images and product has_many images, image belongs_to product - how to create _form.rhtml, new/create and edit/update methods in product controller, so in a single form i can add one product and MANY (let''s assume for now that this number is fixed) images for this product? Pleeeeease help me :) -- Posted via http://www.ruby-forum.com/.

Hi all, Is there a simple function already implemented for getting the ISO weeks of a Date object? I couldn't find one, and so wrote my own function to do it, but would appreciate a pointer to the "default" way. If a function is not yet implemented, could the code below be of interest to submit to CRAN? Best Regards, Gustaf --------------------

I''ve run into an interesting issue. When setting up a table with data from a file (I''m doing this in a block). I find that I can''t create separate entries manually after the import. It complains about a duplicate primary key. I''ve tried Schedule.id += 1 but id= either isn''t defined or accessible in the class Here is my code:

I am planning on using Runt to calculate recurring events. I calculate a Runt object in the view and use it to see if it includes a certain date, which is populates from the database, and display the info for that date if it is included. I have recurring events for every week, which was pretty easy to set up. I can just say: r = Runt::DIWeek.new(4) For a recurring event every Thursday, and

Hi I have to create a json date like {"startDate":"\/Date(1291145744713-0700)\/","endDate":"\/Date(1293824144713-0700)\/"} This is just an example. My case startdate = Time.now-2.day enddate = Time.now I dont know how to convert this to the above format. Please help Thanks -- Posted via http://www.ruby-forum.com/. -- You

I''m having a little trouble with understanding how to work out the schematic for some of my classes using ActiveRecord when a file is in my lib directory: Brief example: Here''s the outline of the files in use: ....app ........controllers ............application_controller.rb ............rushing_offenses_controller.rb ........models ............rushing_offense.rb ....lib

I currently have a model that simply contains one datetime field: class CreateElectricityReadings < ActiveRecord::Migration def self.up create_table :clocks do |t| t.datetime :time_keeper t.timestamps end end def self.down drop_table :clocks end end If I enter the date string "13/10/2010" into this field its showing up in the controller as

I''m using accepts_nested_attributes as follows: class Timesheet < ActiveRecord::Base attr_accessible :status, :user_id, :start_date, :end_date, :activities_attributes has_many :activities, dependent: :destroy has_many :time_entries, through: :activities accepts_nested_attributes_for :activities, allow_destroy: true end class Activity < ActiveRecord::Base attr_accessible

Dear all, I have a question related to the POSIXlt function in R. I have a set of dates and times, for exmaple: startx <- as.POSIXct("2011-01-01 00:00:00") finx <- as.POSIXct("2011-12-31 00:00:00") daysx<- seq(startx, finx, by="24 hours") I want to change the dates of all the days falling on a Saturday to the next working day (i.e. Monday). So I

Hello, I need some help with designing a model I have in mind. I''m not sure what the best way to do it in Ruby/Rails is, or even if what I''m thinking is possible. Basically, I have a system where I want to treat everything as a "message." A Message is a basic model object with a title and message_text. It can stand on it''s own, or it can be