My :counter\_cache column isn’t working properly. I wouldn’t normally ask about a relatively trivial issue like this but I’ve been banging my head on this for a bit and haven’t gotten anywhere. I must be missing some…
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## [How to structure a database table with arbitrary labels for the columns?](https://www.ruby-forum.com/t/how-to-structure-a-database-table-with-arbitrary-labels-for-the-columns/172983)
I am starting to think about writing an RoR app to store some 2-D data. Most of the data are textual, although there could be a column of dates or a column of numbers here and there. The issue is: different data set…
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## [Conditions don't work](https://www.ruby-forum.com/t/conditions-dont-work/172026)
Hi there, I’m building a private message system for one of my sites. I’m now trying to give users the delete messages in their inbox (not destroy the records but put “archived = true” in them), so they don’t come up …
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## [TVRX question](https://www.ruby-forum.com/t/tvrx-question/170702)
Hi all For some reason I always thought that the TVRX daughterboards support IQ sampling. Turns out I was wrong. How do I modify my applications for I sampling? Can I just wire up a whole IQ chain, save files in IQ …
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## [Crazy string issues](https://www.ruby-forum.com/t/crazy-string-issues/167282)
I can’t believe I am having to stoop to asking such a stupid question! I want a string that I am sending out to launch a process on windows. The string has to look like this: myapp --actx="\\.\\DISPLAY3" I cannot figu…
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## [Convert to rails](https://www.ruby-forum.com/t/convert-to-rails/164537)
Last week, I succeed to get a response from my usrp2. After that, however, when I try usrp2\_fft.py, or anything \*.py related with usrp2, I get the “Import Error with usrp2” error. (But when I try something \*.py with u…
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## [Cancel the last migration?](https://www.ruby-forum.com/t/cancel-the-last-migration/161357)
Hello everyone! How can I cancel the last migration? Thank you!
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## [JRuby on Android (from: What would you like to know about Jruby?)](https://www.ruby-forum.com/t/jruby-on-android-from-what-would-you-like-to-know-about-jruby/153608)
In “What would you like to know about Jruby?”, Charles wrote: We get a lot of questions about whether JRuby could work on Android et al, and though we’re not working on it it’s most definitely possible. Is this jus…
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## [\[Patch-gnuradio\] Fixing Bug in usrp\_spectrum\_sense.py](https://www.ruby-forum.com/t/patch-gnuradio-fixing-bug-in-usrp-spectrum-sense-py/150899)
Hi! about this: http://www.mail-archive.com/removed\_email\_address@domain.invalid/msg00039.html Does anyone give you the reason? Furthermore, Is it possible to show the wideband spectrum in a Graphic Window? (Not at …
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## [Action view mutiplication problem and why doesn't method work](https://www.ruby-forum.com/t/action-view-mutiplication-problem-and-why-doesnt-method-work/147379)
Arggh sorry abouht the above post i accidently sent it without finihing it. my second question is that i have put this method in the controller def qx(product,price) result = product.price \* product.quantity end an…
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## [All mongrels crashing](https://www.ruby-forum.com/t/all-mongrels-crashing/146863)
Hi, I got a problem running a rails app on swiftiply (0.6.1.1)/mongrel (1.1.4). It’s running on a Debian 4.0 Etch, rails 1.2.6, ruby 1.8. Mostly its running fine, but sometimes ALL mongrels die with the following m…
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## [Searching between two date](https://www.ruby-forum.com/t/searching-between-two-date/144603)
Hi In model i have (as part of find statement) sd.created\_on \<=\> (sd\_ticket\_start\_date…sd\_ticket\_end\_date) (Here i am using ez\_where plugin So \<=\> means BETWEEN) And for example I am passing dates from view like \<%…
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## [Using auth\_basic in dynamic vhosts](https://www.ruby-forum.com/t/using-auth-basic-in-dynamic-vhosts/142401)
Hi, I have an nginx installation which allows vhosts to be setup dynamically: -------8\<------- server { listen 10.1.2.3:80; root /data/www/$host; index index.php index.html; loca…
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## [Patch for Struct.new(0)](https://www.ruby-forum.com/t/patch-for-struct-new-0/136660)
In my humble opinion… It is always best to have a firewall between you and the outside world. In some circumstances, two firewalls back to back is even better (make sure the two are from different manufacturers…) The…
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## [Problem rendering template with story](https://www.ruby-forum.com/t/problem-rendering-template-with-story/133630)
Hi y’all The problem is probably because I’m a newb. I have a home controller in the admin namespace. My controller spec is working as expected, and the following example is passing: it “should show the home page …
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## [Programmatic VCR Control](https://www.ruby-forum.com/t/programmatic-vcr-control/129255)
Hello, I was flicking through the Ruby Q.zes when I saw the VCR Program Manager (#101) – and thought how nice it would be to control my (real) video recorder via Ruby rather than its native GUI. http://www.rubyquiz.c…
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## [Simple efficiency question: repeated iteration in the view](https://www.ruby-forum.com/t/simple-efficiency-question-repeated-iteration-in-the-view/127868)
Let’s say I get a list of all places from the database in the controller: @places=Place.find(:all, :order=\>“category\_id”) And in the view I want to list them under category headings Now let’s imagine categories is a …
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## [Boolean values passed to content\_tag?](https://www.ruby-forum.com/t/boolean-values-passed-to-content-tag/126853)
In Rails 1.2.3, if I call content\_tag(‘input’, :type =\> ‘checkbox’, :checked =\> true, :disabled =\> true), I get \ I expected content\_tag to handle all boolean v…
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## [Https going back to http after forms -- why?](https://www.ruby-forum.com/t/https-going-back-to-http-after-forms-why/120819)
Yello, When people login to my site, they are redirected to https://mysite.org/their\_account That part is working fine for me. The problem comes when I use form\_tags. After they click the submit button, the next …
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## [Access modifier : private](https://www.ruby-forum.com/t/access-modifier-private/121135)
Hi! I’m missing some core ruby concept here that I just can’t figure out; any assistance would be excellent and welcome: I came to know from various posts that Class level varibales are shared among its subclasses in…
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## [Trivial syntax error: Unexpected ')'](https://www.ruby-forum.com/t/trivial-syntax-error-unexpected/120385)
I am a Rails newbie but have programmed other languages/frameworks earlier. There’s a trivial syntax error I can’t for the life of me figure out. I am following the well-known Ruby On InstantRails tutorial from here: …
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## [How to create a windows startup app](https://www.ruby-forum.com/t/how-to-create-a-windows-startup-app/115851)
I want my RUby app to automatically be called when windows boots up … what is the best way to do this? I am probably going to compile it to an exe… I would also like to know how to do this for Mac
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## [Savage Beast: where are the pagination\_links calculated?](https://www.ruby-forum.com/t/savage-beast-where-are-the-pagination-links-calculated/115538)
I am trying to track down where the pagination\_links are calculated. I have integrated SB into my site, and the show.rhtml for the topics controller references them like this: \<%= \_('Pages:') %\> \<%= pagination\_links @…
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## [How to toggle several divs at the click?](https://www.ruby-forum.com/t/how-to-toggle-several-divs-at-the-click/82398)
Hey all, I have several divs like this: blabal blabal blabal I would like to do a link\_to\_function or link\_to\_remote to make them visible all by one click. Any idea how to do that? thanx in advance Pat
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## [Ruby on the rise in Brazil](https://www.ruby-forum.com/t/ruby-on-the-rise-in-brazil/112861)
Developers in Brazil expect their use of the Ruby scripting language to double in the next year, according to an Evans Data Corp. survey of 400 developers in Brazil, China, India and Eastern Europe. Although roughly 1…
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## [Calling a Rails action from the command line](https://www.ruby-forum.com/t/calling-a-rails-action-from-the-command-line/108952)
Anyone knows how to call a Rails action from the command line? I have an action that would update the database. I can call it from a web browser: http://localhost:3000/radar/update\_radar I want to create a cron job t…
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## [ActiveRecord::Base.find returning columns from :joins](https://www.ruby-forum.com/t/activerecord-base-find-returning-columns-from-joins/107208)
Hi, I’m trying to find all of the products that have parts supplied by the given supplier’s name: @products=Product.find :all, :include=\>\[“company”,“parts”\], :joins=\>“inner join suppliers\_to\_parts stp on stp.part = …
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## ["Bad file descriptor - connect(2)" = Unable to connect to DB](https://www.ruby-forum.com/t/bad-file-descriptor-connect-2-unable-to-connect-to-db/90590)
When developing a Rails project I occasionally get the error message: ‘Bad file descriptor - connect(2)’ The first time this happened, it took me a while to work out that the problem was that I have forgotten to start…
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## [Controllers!?](https://www.ruby-forum.com/t/controllers/87633)
when i put: render :action=\>“list” in my “index” method of my controller it doesn’t use/create the variables created in the list method it only gives the “list” view? is that supposed to happen
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## [Re: Creating a second instance of a singleton class?](https://www.ruby-forum.com/t/re-creating-a-second-instance-of-a-singleton-class/85593)
dblack wrote: I think the idea is for the object to have its own class, so if that class ceased to be its own class, there would have to be some new construct that was its own class, and you’d be back where you start…
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## [Ruby 1.8.5-p12 released](https://www.ruby-forum.com/t/ruby-1-8-5-p12-released/80380)