similar to: Defining model classes for enumerations

Some of my earlier questions may have hinted ever so slightly in the direction that I''m trying to implement "enumerations". By an enumeration here I mean a class that has a fixed number of immutable instances, which in turn have essentially only a name and a position. Requirements I''ve tried to meet are - Enumeration instances should only be loaded once from the

Somewhere between 0.13.1 and the current SVN version the :overwrite_params option to url_for (and related methods) went missing. I can''t tell whether this was deliberate or by mistake, and I have no idea how to get the same functionality in some other way either. Michael -- Michael Schuerig Life is what happens

Recently, I''ve started to write unit tests for some of my scripts. In general,it''s no worse in JavaScript than in Ruby or Java. I didn''t have the courage to try Selenium, but had a look at JsUnit. Unfortunately, in Konqueror it produces unfathomable errors and in Firefox it is slow beyond imagination. Anyway, writing tests for functions that are computational or

Thomas, currently the script.aculo.us scripts have some workarounds for Safari that should be extended to more generally cover all khtml-based browsers, Konqueror in particular. In prototype.js, there is a workaround for an addEventListener bug that affects Konqueror as well as Safari, controls.js has a similar workaround, and the special case in dragdrop.js doesn''t hurt anyway. In

I know there''s wiki page on generating PDF[*], but that''s not really what I want. I don''t need to create arbitrary PDF. What I''d like to do is create PDF templates and fill in the blanks. Roughly, I''m looking for functionality akin to the mail merge feature of word processors, including conditional and repeated elements, say, table rows. Michael

I have a model layer containing Movie, Person, Role, and RoleType, making it possible to express facts such as "Clint Easterbunny is director of the movie Gran Milano". The relevant model and associations look like this class Movie < ActiveRecord::Base has_many :roles, :include => :role_type, :dependent => :destroy has_many :participants, :through => :roles, :source

I''d like to run the FastCGI as a different user than the Apache2 server (www-data on Debian). I take it this is possible in some way with suExec2, but so far I haven''t figured out how to do it. Michael -- Michael Schuerig Life is just as deadly mailto:michael-q5aiKMLteq4b1SvskN2V4Q@public.gmane.org As it looks

I''m in a dilemma: In order to keep GET requests from deleting objects, I''d like to use the button_to helper to get "something" that generates a POST request. Unfortunately, that something is a form and forms can''t be nested. I''d also like to place buttons related to the same form close to each other. At the top are some navigational buttons

I''ve noticed that using several TimedObservers (prototype.js) on a page to watch for changes to text fields (haven''t tried forms) can have a non-negligible effect on the CPU cycles used by the browser process. Nothing dramatic, to be sure, but unnecessary. Autocompleter.Base (controls.js) follows a smarter strategy to watch for changes. Currently this functionality is tied

There really doesn''t seem to be a *declarative* way to define a default value for belongs_to and has_one associations class Person < ActiveRecord::Base belongs_to :address end p = Person.new p.address.city = ''Atlantis'' # Bummer! Of course, there''s an easy way to avoid this class Person < ActiveRecord::Base belongs_to :address

Here''s a simplistic model class. class Person < ActiveRecord::Base has_and_belongs_to_many :relatives, :class_name => ''Person'', :join_table => ''relatives'', :foreign_key => ''from_id'', :association_foreign_key => ''to_id'' has_and_belongs_to_many :brothers, :class_name =>

I want to implement in-place editing for a hierarchical structure where the nodes are not simple text fields, but need to be represented by at least two input elements. The Rails helpers only support in-place editing for a text field, scriptaculous''s controls.js beyond that implements support for an in-place editor containing a select element. I need an editor where I essentially

Ah - thanks Michael. Event.stop is precisely what I was looking for. I can just grab the event object inside the handler that I registered previously and pass it to an Event.stop call, and get exactly what I want. Thanks, Rahul Date: Tue, 2 Aug 2005 16:08:20 +0200 From: Markus Joschko <markus.joschko@gmail.com> Subject: Re: [Rails-spinoffs] Re: function.prototype.bind

It''s awfully quiet in here... So here''s another bunch of scripts that are heavily inspired by Prototype.js and useful in conjunction with Rails http://www.schuerig.de/michael/javascript/ Please have a look... at the code. There''s nothing visual about the scripts, I happily leave that to Thomas. Michael -- Michael Schuerig Airtight arguments have

I''ve just put two plugins on RubyForge. Included below are the READMEs. You can get the plugins at svn://rubyforge.org//var/svn/valirefl/validation_reflection/trunk svn://rubyforge.org//var/svn/clientsidevali/client_side_validation/trunk Michael Validation Reflection ===================== Version 0.2, 2006-08-06 This plugin adds reflective access to validations -

No, not a question, but a few suggestions. I take it that everyone serious about using Prototype & Co. already has Christophe''s (Porteneuve) Prototype and Script.aculo.us book. Apart from that, I''d like to point out two new, library-agnostic books: Cameron Adams and several others The Art & Science of JavaScript Sitepoint 2008 http://www.sitepoint.com/books/jsdesign1/

Currently, pages generated by Rails tend to be sprinkled with JavaScript. This happens, because the various helper methods work only locally and simply append to the output. In order to hide the JavaScript away, rendering would probably have to be changed. A way I can think of is that a page-specific script is included in the head of the document and JavaScript code is not written to the

The validation reflection plugin adds three things (1) Reflective access to validations - ModelClass.reflect_on_all_validations - ModelClass.reflect_on_validations_for(:property) (2) It provides "declarative" methods for defining validations based on database metadata - validates_presence_of_mandatory_content_columns - validates_lengths_of_string_attributes -

Has someone come up with a generic way to handle ajax requests that exceed a certain time? In my concrete case, I have several select boxes for drilling down a hierarchy. When the user clicks an option, the next deeper level is retrieved. To avoid multiple concurrent requests, I disable the select box. As the request may take too long or cause an error, I set a timeout that re-enables the

I''m no friend of paging, but I have to somehow deal with lists of potentially large numbers of objects. The Rico LiveGrid[*] at first blush seems attractive, but has some major drawbacks. It doesn''t work with Safari/Konqueror, not yet anyway. It can only handle fixed-size tables and requires that widths, including column widths, are hand-crafted. I''m looking for a