Category Archives: Ruby on Rails
ID Proliferation Eradication Technique #1: Leverage page.select with page.insert
update 3/29/2009 8:34 AM: In November, 2007 Brad Wilson pointed out an even cleaner fix. Rather than relying on page.select you can just use page.literal to inject (literal) JavaScript code right where you want it. So recasting my example using … Continue reading
Fight id Proliferation and Update Any Element You Want
update: July 5, 2007: see ID Proliferation Eradication Technique #1… for an update. The Prototype Updater constructor takes an Element (object) or element id (String) as the first parameter. You can see this in prototype.js in Abstract.Insertion.initialize and Ajax.Updater.updateContent . … Continue reading
Rails IDE Goes Jurassic
About a year ago in Smalltalk Browser Goes Jurassic I lamented the fact that the Smalltalk browser UI was caught in a techno-aesthetic time warp and cheered the possibility that it might escape to the future and in doing so … Continue reading
Updated Validateable Recipe
Recipe 64[1] shows how to use Rails’ ActiveRecord Validations functionality on objects that don’t have corresponding database records. The canonical example of this situation is a Password (model) class. It helps support the view but there is no actual passwords … Continue reading
Foolproof AJAX Progress Indicator
Bruce Williams is right on in Avoiding AJAX Faux Pas where he lists four inviolable conditions your AJAX code must meet. The first two conditions address the need to show (then hide) a visual progress indicator to let the user … Continue reading
Put NULLS Last on MySQL
NULLs are a wonderful but strange feature of SQL. They are the source of some deep coolness but also some lost hair. One place where NULLs can bite you is when you are sorting. The way you sort in SQL … Continue reading
Tell TextMate About Your RJS Templates
As explanations go, it doesn’t get much more straightforward than Cody Fauser’s excellent post on Rails RJS Templates. When you try it out though, you may notice that TextMate doesn’t know that RJS templates which by convention have an “.rjs” … Continue reading
script.aculo.us InPlaceEditor Drops Paragraph Tags
I submitted a Rails/script.aculo.us defect describing how Ajax.InPlaceEditor is stripping paragraph tags when loading the textfield/textarea. While waiting for the Universe to respond, I’ve had some time to research the issue a little more. Interestingly, the behavior seems to have … Continue reading
