AlternateIdea: Rails Did you know? tips

August 3rd, 2005

Rails Did you know? tips

4 comments on 78 words

UPDATE: Textpattern is doing weird stuff with my code, either way I code it whether escaping it or not it renders as html code on my live site or in RSS readers. Looking into that now.

UPDATE 2: Removed article for now because Textpattern decided to have it’s way with me. Hopefully i’ll get it back soon.

Discussion

Curt Hibbs said on August 3rd

Good tips!

It would be nice to post these on the Rails site in the HowTo section. Its nice to have everything (searchable) in one place!
Peter Cooper said on August 3rd

Good, but you might want to escape some of your code? The top JavaScript one is totally blank in my browser, and the sidebar one is missing the code for the view (it just shows the HTML result!) .. seems it’s getting parsed somewhere along the line? :)
Justin Palmer said on August 3rd

Peter, thanks for tell me this.

Textpattern is doing some very funny things with my code. If I don’t escape the code, then it renders as html on my live site, if I do escape the code then it shows up as html in RSS readers. :-(

Going to have to do some digging to see where the problem lies. Sorry to those who get a jumbled view.
Seth said on August 3rd

To simplify handling of multi-selects, just name the select model[collection_ids][] and update_attributes will take care of everything else.

In your example:
article[category_ids][]

Sorry, comments are closed for this article.

Justin develops iPhone and Mac software over at Labrat Revenge by night and by day he is the Design Director for entp, the company behind Lighthouse, Warehouse, and Mephisto. You can check out his dated portfolio for a peek of what he's done.

Beautifully simple issue tracking and project management. With a beautiful Mac-like interface, email and subversion integration, Lighthouse is the perfect project management tool. We took the suck out of issue tracking.

Jan12

YouTube has just announced HouseHub and Senate Hub.
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Oct10

Best Practices For Cocoa and CocoaTouch—Invaluable tips from Cocoa developers.
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Sep25

Track House And Senate Votes On Twitter. I’ve put together a small script that parses vote data collected by Govtrack.us and posts to twitter.
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Jul28
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Protip: Color grep searches in terminal
```
alias grep='GREP_COLOR="1;37;41" LANG=C grep --color=auto'
```
Stash this away in your Z Shell (~/.zshenv) or Bash environment (~/.bashrc) and set your preferred ANSI code.
Jun08

ActiveRecord Ported To Objective-C brought to us by Ninja Kitten
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May06

With the release of Opera’s DragonFly, IE 8’s Developer tools, Safari’s/Webkit’s Web Inspector and Drosera; and the Grand Daddy of them all, Firebug – we’ve now come full circle.
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Feb08

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DoubleClick and Define using Apple Dictionary


var selection;
if(window.getSelection)
  selection = window.getSelection();
else if(document.selection)
  selection = document.selection.createRange();

document.observe("dblclick", function() {
  if(navigator.userAgent.include("Macintosh")) {
      location.href = "dict://" + selection;
    }
});

A quick (and probably dirty) Prototype-based hack allowing Mac users to get the definition of any word by double clicking it.

Feb08

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A strftime for Prototype


Object.extend(Date.prototype, {
  strftime: function(format) {
    var day = this.getUTCDay(), month = this.getUTCMonth();
    var hours = this.getUTCHours(), minutes = this.getUTCMinutes();
    function pad(num) { return num.toPaddedString(2); };

    return format.gsub(/\%([aAbBcdDHiImMpSwyY])/, function(part) {
      switch(part[1]) {
        case 'a': return $w("Sun Mon Tue Wed Thu Fri Sat")[day]; break;
        case 'A': return $w("Sunday Monday Tuesday Wednesday Thursday Friday Saturday")[day]; break;
        case 'b': return $w("Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec")[month]; break;
        case 'B': return $w("January February March April May June July August September October November December")[month]; break;
        case 'c': return this.toString(); break;
        case 'd': return this.getUTCDate(); break;
        case 'D': return pad(this.getUTCDate()); break;
        case 'H': return pad(hours); break;
        case 'i': return (hours === 12 || hours === 0) ? 12 : (hours + 12) % 12; break;
        case 'I': return pad((hours === 12 || hours === 0) ? 12 : (hours + 12) % 12); break;
        case 'm': return pad(month + 1); break;
        case 'M': return pad(minutes); break;
        case 'p': return hours > 11 ? 'PM' : 'AM'; break;
        case 'S': return pad(this.getUTCSeconds()); break;
        case 'w': return day; break;
        case 'y': return pad(this.getUTCFullYear() % 100); break;
        case 'Y': return this.getUTCFullYear().toString(); break;
      }
    }.bind(this));
  }
});

UPDATE: Bugs fixed. Thanks Andrew and Stephen

Also, some of my old and new code has been posted on GitHub. You might find something useful.

Feb04

A beautiful, organic animation by Flight404 created using Processing.

Processing in Action
Jan08

Aaron Patterson shows us how to define ruby methods which can be called from JavaScript using RKelly.
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Jan07

Dustin might not surprise you at your house with a book in hand, but he’ll damn sure send you his innermost fu in the form of a shiny yellow and black book. It’s an excellent read if you’re looking to put more funk in your functions and class in your classes. Check out “Pro JavaScript Design Patterns” by Dustin and Ross Harmes.

—I’m Justin Palmer and I approve this message.
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Dec23

IE 8 PAsses the Acid 2 Test for those not keeping tabs on things.
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Oct24

Mislav has written up an excellent overview on upgrading Radiant (which used 1.5) to Prototype 1.6. The article does a great job of showing how 1.6 is superior to 1.5.
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Oct19

According to the New York Times, the Daily Show Archives, with over 7,000 videos are online—free and searchable.
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Oct11

Telemarketer gets owned