similar to: validate data

Hi everybody I would like a function as the "before_save" method in the model. But it must be the opposite. When I take out data from the database through the model, I want to call a function before the data are available in the controller. Can anyone help me? ---- >>>> thx <<<< ---- -- Posted via http://www.ruby-forum.com/.

hi @all Can anyone help me? I would like to read the last two records from a database. In the database I have a table with id, name and sex. How can I read the last two records from the entered names, who are female? There are two conditions I need: > last entries > sex-condition User.find(:all, :condition.....) ?? -- Posted via http://www.ruby-forum.com/.

I use the following code in my view: <%= collection_select(''datedata'', ''date'', @allDate, :id, :date) %> It''s show me the date of all entries in the database (Dropdown menu). Additional, I wrote a helper method "showDate" in the application_helper.rb! How can I use this method in the collection_select for every date entry? thanks

Hi I a newbie in RoR! So I have an easy question for some of you: I want with the following codeline link to the Admin-Controller. The codeline is on the Product-View with a seperate controller "Product". <%= link_to ''Back'', :action => ''Admin'' %> But it doesn''t work correctly. Can anyone help me? I want to make a simple link!

Hi all, I recently started back up with Rails and things are going well up until now. I''ve set up acts_as_commentable in my Post model and it''s working great. Problem is users are able to create a "blank" comment. I''ve added the following validations in the comment.rb file generated by acts_as_commentable to limit the comment length: [code]

hi, is there a way to create the database (say development and or production) specified in database.yml with rake? thanks, Enrico -- "The only thing necessary for the triumph of evil is for good men to do nothing" Edmund Burke

Hi, I''ve used .save to save the attributes, but on my table there is an autoincrementing id (not the primary key) that doesn''t need to be inserted... but save try to INSERT it anyway... is there a way to avoid save from acting this way or to whisper him to be more polite this time? ;) Thanks, Enrico -- "The only thing necessary for the triumph of evil is for good men to do

I''ve got a partial with a form using the dynarch calendar (calendar_field behavior). Working. Now I render this partial from the action specified in to a link_to_remote. Now when I click the calendar it''s not showed anymore. theese lines: <%= stylesheet_link_tag ''calendar-system.css'' %> <%= javascript_include_tag ''calendar'',

Hello, I''m using file_column to save my users images. It''s all OK, but I want to prevent one user from accessing other user''s image. Is it possible, as the image is saved in the file system ?? Thanks Parra -------------- next part -------------- An HTML attachment was scrubbed... URL:

Anyone seeing the following: llvm[3]: Compiling SelectionDAGISel.cpp for Release+Asserts build Decoding Conflict: ____0001111_........________.... ____0001111_.................... ____0001111..................... ____0001..1..................... ____0001........................ ____00.......................... ____............................ ................................

I am using rails just for few days Now i am developing traffic reports for my local network I had to build database queries manualy becouse ActiveRecord does not support selection of multiple sum() fields in silgle query Then i wrote special class QueryBuilder which makes query string from the given conditions (group by, where, additinal fields to select etc). I put QueryBuilder just after my

Hi, I need to check the uniqueness of an attribute (a doc number) using a condition (a specific year), I''ve found validates_uniqueness_of :number, but I need to tell it I just want to check a specific year. I''ve found :scope but I haven''t really understood it''s meaning, Can I scope on a specific year? Thanks, Enrico -- "The only thing necessary for the

Removing rows with NAs, using na.omit(), doesn't seem to be working for me. Dataset: > str ( ex10s ) 'data.frame': 2189576 obs. of 5 variables: $ LOPNR : int 58 58 58 58 64 64 64 64 64 64 ... $ DIAGNOS: Factor w/ 173 levels "F20","F200","F2000",..: 128 128 128 128 105 105 105 160 105 105 ... $ X_DATE : int 20060821 20061207 20080102 20090904

Hello iam new to rubyonrails. Please any one help me out in "How to upload only jpeg & gif & png images into public/images using rubyonrails" Thanks in Advance -------------- next part -------------- An HTML attachment was scrubbed... URL: http://wrath.rubyonrails.org/pipermail/rails/attachments/20060504/33a17ad2/attachment.html

Hi, Reading http://ssc.wisc.edu/~ahanna/20_newsgroups.csv after downloading it using data <- read.csv("20_newsgroups.csv",header=TRUE) throws this. Warning message: In scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings, : EOF within quoted string So, for example, the first line in the file is this. This column contains only such text. Is there a way read it ?

Hi, I am trying to build a more recent version (3.6.1 or 3.5.3) of R on Ubuntu 18.04 LTS. I have installed build-deps with: sudo apt-get build-dep r-base and I ran ./configure During "make", I get the following error: platform.o: In function `do_eSoftVersion': /home/user/Desktop/R-3.6.1/src/main/platform.c:3129: undefined reference to `u_getVersion_58'

Hi, I''m using: select(object, method, choices, options = {}, html_options = {}) I''ve read the API where there''s this example: select("post", "person_id", Person.find_all.collect {|p| [ p.name, p.id ] }, { :include_blank => true }) should give this code: <select name="post[person_id]"> <option></option>

Hi, I''ve installed Ubuntu 5.10, with Ruby 1.8.4 with thoose rep: deb http://www-devel.orcaware.com/packages/ubuntu/ breezy/ deb-src http://www-devel.orcaware.com/packages/ubuntu/ breezy/ when I give: sudo gem install postgres I get: Attempting local installation of ''postgres'' Local gem file not found: postgres*.gem Attempting remote installation of

Hey there, good job with the file_column thing, but I''m experiencing a problem I didn''t found about. I''m grouping controllers in to modules (like Admin::Category Admin:Item) and: url_for_file_column("dettaglio", "picture_url") return this search path: src="/detail/picture_url/development/5/dark.jpg" there''s a development coming from

Hi, I correctly see: image_tag url_for_file_column("element", "picture_url", "medium") now I need to make it a link so I''ve used: <%= link_to(image_tag url_for_file_column("element", "picture_url", "medium"), {:controller => "products", :action => "sec_level", :level_id => @element.id}) unless