similar to: possible bug in eager loading

R-help: I have a variable ("ID_list") containing about 1800 unique numbers, and a 143066x29 data frame. One of the columns ("ID") in my data frame contains a list of ids, many of which appear more than once. I'd like to find the subset of my data frame for which "ID" matches one of the numbers in "ID_list." I'm pretty sure I could write a function

Hi. I would like to do code refactoring: @beers = [] Beer.all.each do |beer| unless @beers.find{|c| c.brand_id == beer.brand_id} @beers << beer end break if @beers.size > 29 end So I achieved this by writing scope (on PostgreSQL): scope :with_unique_brand, select("DISTINCT ON (beers.brand_id) beers.*") Using this scope alone is working

Is there a proper way of doing inner selects in rails. Basically, I run in issues where I need the count of a query and end up using find_by_sql. I was wondering if there was any elegant way of doing such queries. Roland -- Posted via http://www.ruby-forum.com/.

I have a form with a text area. I want to have an observer watch the text area and update a div with the running count of characters in the text area. I tried "onchange" but that doesn''t update until you leave the text area. I was able to get it working using AJAX, but it''s silly to make a needless round trip to the server, when the page already knows

Hi, I need some help. I`m developing a data base administrator using ruby and ajax, both for the first time and I have a problem: I have a form where you can add or delete some information about a person., information related with their studies. There is no problem when I add, but when I delete, it deletes from the database but when I try to save it throughs me an error because it tries to find

Hi, I''m trying some RJS to update a series of list boxes in which the user selects a state, and the following list gets updated with a list of counties, and the same for the next list of areas. My code works perfectly (albeit a bit slow) on Firefox, but on Internet Explorer it clears the list box (instead of filling it) and Netscape shows all the counties cramped together on one

I''ve followed the instructions in the Rails Recipe #1 and have the in_place_editor_field working but now I want to tweak how it looks and behaves. I''d like to be able to override the default yellow highlight color, which is done using the highlightcolor param according to the scriptaculous documentation (unless I''m missing something). I''m new to Ruby and Rails

I have a few in_place_editor_fields working fine. I can access some of the script.aculo.us options such as :cols, :save_text, :cancel_text, but how do I access the okButton = false & submitOnBlur options? Basically, I want no submit button, a cancel button, and the ability to submit when I tab out of the field. Is this doable without writing a helper? (avoiding digging that deep so

Hi, I would like to know how to populate data in another text fields on selection from a drop down For Ex 1) The form contains 4 fields out of which 3 are text fields and the 4th one is drop down list. 1) i would like to know how to populate the 3 text fields with data simultaneously on selection from the drop down list. Please Help. -- Posted via http://www.ruby-forum.com/.

Is there any API in LLVM that can represent the field in java. such as the instucion "iget vx, vy, field_id" -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20130716/81e59a4a/attachment.html>

It's hard to say. What you've described sounds close to a neutral type system implemented in metadata. In particular, ". It also defines a set of language-neutral formal rules that LLVM codegen follows to determine whether a given pair of accesses are allowed to overlap by rules of the input language. " and "the base type followed by field descriptors" etc Despite the

Hi Ivan, thanks for writing it up. This is a pretty long thread, and there are many good points brought up in the heated discussions. Here is my take on many of the points that have been mentioned: 1) The type based aliasing IR annotation should be generic enough to represent aliasing constraints for any frontend languages; 2) The offset based aliasing rules and type based aliasing rule have a

On Mon, Aug 21, 2017 at 2:19 PM, Hal Finkel <hfinkel at anl.gov> wrote: > On 08/20/2017 08:47 PM, Xinliang David Li via llvm-dev wrote: > > Hi Ivan, thanks for writing it up. This is a pretty long thread, and there > are many good points brought up in the heated discussions. Here is my take > on many of the points that have been mentioned: > > 1) The type based

I figured I pose this to the list and see if any one can build a better mousetrap. The problem: 1. Store hierarchical data in a database, but without knowing the hierarchy beforehand. 2. Allow the user to define there own hierarchy, and allow the system to support multiple hierarchies. Call it a cataloging system, we have an object and we want to add data about that object to the system. Now

Signed-off-by: Jerone Young <jyoung5@us.ibm.com> -- Jerone Young IBM Linux Technology Center jyoung5@us.ibm.com 512-838-1157 (T/L: 678-1157) _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

Hello, I am new here and actually I am writing my first RoR app. My question is: -------- class Topic < ActiveRecord::Base has_many :messages end class Message < ActiveRecord::Base belongs_to :topic end class ForumController < ApplicationController def post message = Message.new(params[:message]) @topic = Topic.find(params[:id]) @topic.messages

In this patch series we use the newly introduced free callback on the completion function to dererence the OCaml NBD.Buffer. I will make the same kind of change for Python later in a separate series. The completion function is always called at the C level, even if the OCaml program didn't use the optional argument. That's because the free callback doesn't run otherwise. There is a

Rich found that I had been using bogus logic, but it was hidden by other bugs in our language bindings until recently. Eric Blake (2): python: Fix test 505 ocaml: Fix test 505 python/t/505-aio-pread-callback.py | 14 +++++++------- .../test_505_aio_pread_structured_callback.ml | 14 +++++++------- 2 files changed, 14 insertions(+), 14 deletions(-) -- 2.20.1

Patches 1 & 2 are rather complex, but the end result is that we pass closures + user_data + free function in single struct parameters as I described previously in this email: https://www.redhat.com/archives/libguestfs/2019-August/msg00210.html Patch 3 adds a convenient FREE_CALLBACK macro which seems a worthwhile simplification if you buy into 1 & 2. Patch 4 adds another macro which is

This is a combination of these two earlier series: https://www.redhat.com/archives/libguestfs/2019-August/msg00235.html https://www.redhat.com/archives/libguestfs/2019-August/msg00240.html plus changes to allow .callback = NULL / .free != NULL, and to reduce the complexity of freeing callbacks. Although it's rather long there's nothing complex here. We might consider squashing some