similar to: subbing a string vector for another string vector

This is what I have class Photo < ActiveRecord::Base belongs_to :image, :polymorphic => true acts_as_list :scope => image end class Place < ActiveRecord::Base has_many :photos, :as => :image end class Child < ActiveRecord::Base has_many :photos, :as => :image end I want to be able to reorder the images. What I need is for the position of the photos to be set

Can someone please help me with this. I have an Images table :- create table images ( id integer unsigned not null auto_increment primary key, image varchar(200) not null default '''' )ENGINE=InnoDB default CHARSET=latin1; And a car table :- create table cars ( id integer unsigned not null auto_increment primary key, user_id integer unsigned not null, title varchar(100) not

R pattern-matching and replacement functions are vectorized: they can operate on vectors of targets. However, they can only use one pattern and replacement. Here is code to apply a different pattern and replacement for every target. My question: can it be done better? sub2 <- function(pattern, replacement, x) { len <- length(x) if (length(pattern) == 1) pattern <-

Hi, <%= select_tag ''image_id'', options_for_select(Image.find(:all) {| an_image| [ an_image.name, an_image.id ] }), :multiple => true %></p> * I am in a view, and I am trying to search the image table and make a multiple select box with each image''s name. * Right now it is working, but I see this: ---------------------------------------------

hey all, I have 3 tables like this: Images (id,name) Tags (id,name) ImagesTags(imageid,tagid) in my image model I do a "has_and_belongs_to_many :tags" but to make it work I need to rename ImagesTags(imageid,tagid) to Images_Tags(image_id,tag_id). My question is that given that I can''t rename the table, is there any way to make it work with the original names? Second question:

Hi all, I am using Rails 3.1 and Ruby 1.9.2 In my application i am using optional routes like below match ''Gallery(/:gallery_id(/:image_id))(/page/:g_page)'' => "wps/ gallery#show_gallery_page",:as => :gallery_page in console i am trying to call the routes like below include Rails.application.routes.url_helpers => Object 1.9.3dev :002 > gallery_page_path

Hello, I'm seeing a nuisance warning when I run `R CMD check --as-cran whatever_x.y.z.tar.gz`. I generally work with these options set: options( warnPartialMatchArgs = TRUE, warnPartialMatchAttr = TRUE, warnPartialMatchDollar = TRUE ) And I see this: * checking use of SHLIB_OPENMP_*FLAGS in Makefiles ...Warning in dir("src", patt = "[.]c$") : partial argument

I have this code in a controller that returns images to my browser...with ROR. def index @products = Product.find_all_ pictures end ....this is the .rhtml.. <% for photo in @pic -%> <div class="entry"> <img src="<%= photo.image_url %>"/> <h3><%= h(photo.title) %></h3> <%= photo.description %>

* Richard W.M. Jones: > On Sat, Apr 26, 2014 at 02:27:07PM +0200, Hilko Bengen wrote: >> --- >> src/kernel.ml | 43 ++++++++++++++++++++++++++++--------------- >> 1 file changed, 28 insertions(+), 15 deletions(-) >> >> diff --git a/src/kernel.ml b/src/kernel.ml >> index ed5aea3..436b1b0 100644 >> --- a/src/kernel.ml >> +++ b/src/kernel.ml

Hi, I have tried two db designs and both can work but I wonder which one the Rails Gurus would go with. This is a general db design question that has cropped up in a few situation. Here is the example I''ve been working on. In an online store, categories has_and_belongs_to_many images and products has_and_belongs_to_many images. The db has the basic three tables categories - id - name

--- src/kernel.ml | 43 ++++++++++++++++++++++++++++--------------- 1 file changed, 28 insertions(+), 15 deletions(-) diff --git a/src/kernel.ml b/src/kernel.ml index ed5aea3..436b1b0 100644 --- a/src/kernel.ml +++ b/src/kernel.ml @@ -23,6 +23,19 @@ open Utils open Ext2fs open Fnmatch +let patt_of_cpu host_cpu = + let models = + match host_cpu with + | "mips" |

Str is a pretty ugly regexp module. Let's try to replace it with PCRE. This series of commits goes some small way towards that eventual goal. - - - I wonder if there was a deep reason why we had this? let unix2dos s = String.concat "\r\n" (Str.split_delim (Str.regexp_string "\n") s) I replaced it with what I think should be (nearly) equivalent: let unix2dos s =

Hi, I have a rails application where I respond to a request by fetching image urls from various web api calls and need to display them as they come available. I am able to display all the images once I get them all, but that causes an unacceptable delay for my user. One approach I am trying is, from my controller, set an @image variable, and then pass in a block to the model that retrieves the

v1: https://www.redhat.com/archives/libguestfs/2017-September/msg00135.html v2: https://www.redhat.com/archives/libguestfs/2017-September/msg00158.html v3 is almost identical to v2, but I have added 4 extra commits to almost finish the job of replacing Str everywhere possible (note it's not possible to replace Str in common/mlstdutils or the generator because those are pure OCaml). As

R users, I have df like this a <- data.frame( indx = 1:20, var1 = rep(c("I20", "I40", "A50", "B60"), each=5), var1_lab= rep(c("cat", "dog", "mouse", "horse"), each=5), var2 = rep(c("B20", "X40", "D50",

Hi all, finally im starting with rails, i have a simple relationship has_many ans belongs_to that i dont now how to manage the update action, here are my models class Item < ActiveRecord::Base has_many :images end class Image < ActiveRecord::Base belongs_to :item end And my table structure: Items => id, title, desc Images => id, image, item_id ok, i have a number of

Hi everyone, I try to add many vectors (L1,L2,L3....) to many list objects (a.list, b.list....) in a workspace. Somethings like below, but it is not working. Any suggestions will be appreciated. Best, John lf=ls(pattern=".lst")  for (x in listfiles) {     dat=read.delim(x,header=F)     for (i in 1: lf) {     assign(i$add,as.numeric(dat[,3]))   #or i$add=as.numeric(dat[,3]    

Given this data frame (a simplified, essential reproducible example) A<-c(8,7,10,1,5) A_flag<-c(10,0,1,0,2) B<-c(5,6,2,1,0) B_flag<-c(12,9,0,5,0) mydf<-data.frame(A, A_flag, B, B_flag) # this is my initial df mydf I want to get to this final situation i<-which(mydf$A_flag==0) mydf$A[i]<-NA ii<-which(mydf$B_flag==0) mydf$B[ii]<-NA

Hello, in the data.frame "resultsfuzzy" I would like to replace the characters in the second column ("5a", "5b", ... "5e") with numbers from 1 to 5. The data.frame has 39150 entries. I seems to work on samples that are << nrow(resultsfuzzy) but it takes suspicously long. Do you have any suggestions how to make the character replacing more

Hi all, Can anyone explain why the following use of the subset() function produces a different outcome than the use of the "[" extractor? The subset() function as used in density(subset(mydf, ht >= 150.0 & wt <= 150.0, select = c(age))) appears to me from documentation to be equivalent to density(mydf[mydf$ht >= 150.0 & mydf$wt <= 150.0, "age"])