search for: someclasses

Hi everyone, I''m trying to convert a string passed on the command-line into an ActiveRecord class, so I can do something like this. a="SomeClass" a.find(:all) where class SomeClass < ActiveRecord::Base end This appears to work (better ways would be appreciated): a="SomeClass" b=eval a b.find(:all) However I would like to make sure

Does anyone have any experience making this work? I installed the plugin and tried the following: class SomeClass < ActiveRecord::Base acts_as_Taggable end class SubClass1 < SomeClass end class SubClass2 < SomeClass end SubClass1.tag_with("tag") and notice that taggable_type = SomeClass when I do SubClass2.find_tagged_with("tag") a SubClass1 object is

Hi Accesses the $new method for a class defined in a package fails if the methods package is not loaded. I have created a test package with the following single code file: newTest <- function() { cl <- get("someClass") cl$new } someClass <- setRefClass("someClass") (This is similar to code actually used in the testthat package.) If methods is not loaded,

Dear useRs and wizaRds, I am currently developing a set of functions using S4 classes. On the way I encountered the problem exemplified with the code below. For some reason the 'validity' method does not seem to work, i.e. does not check for errors in the specification of the slots of the defined class. Any hints? My understanding of the whole S4 system was that validity checks are made

Hi,   I'm new to R and S4 classes. I defined a class with two methods (myMethod1 and myMethod2). I want to call myMethod1 within myMethod2. Why does the code below not work? The name 'myMethod1' doesn't appear to have meaning inside myMethod2, even though the two methods belong to the same class.     setClass(Class="SomeClass",      representation=representation(      

I''m trying to figure out how to use modules with my model classes. I''m going to have good number of model classes that don''t map to the database, and I''d like to put some of these in seperate modules. I''ve been wrestling with this for 2 days and can''t figure out how to get it to work. Rails seems to handle it fine for controllers, though. I

FWIW, I''ve wrote puppet-cleaner to help me make comply thousands of lines of puppet 2.6 DSL code to puppet 2.7 style guide and expectations. I''m uploading it to github today for anyone to use. https://github.com/santana/puppet-cleaner Externally, you run puppet-clean file.pp and it can transform this: /* multiline comment trailing white space here -> */ class

Hi. I''ve done following things: >./scripts/generate model Someclass added self.table_name in someclass.rb with my custom tablename >./scripts/generate scaffold someclass And it logs out following : ''mybase_dev.someclasses'' doesn''t exist: SHOW FIELDS FROM someclasses ... It seems generator just ignores my table name definition... I''m noob to ruby and rails, anyone can help? Thanx.

Hi, I'm having trouble seeing the added value over functions defined by setGeneric vis-a-vis methods defined by inheritance and polymorphism. setGeneric offers a 'clean' call to a generic function, ie. no need to call new(), so less typing to do for the user. But such explicit calls can also be avoided by functions like f <- function(x, y) new(Class = SomeClass, x=x, y=y). Then

Dear R developers, It would be great if you could implement the two minor code changes suggested below, which would help processing large objects in R. Jens Oehlschl?gel # Wish no. 1: let [.AsIs return the class AFTER subsetting, not the class of the original object # Wish no. 2: adjust write.csv and write.csv2 for multiple calls in chunked writing # Rationale no. 1: a couple of packages

I have a link to remote and I''m trying to get the name="" and the class="" attribute in the href so the link will come out like this: <a href="action" onclick"ajax(action)" name="Title Of Link" class="someclass"> So far the link looks like this: <% for course in @courses %> <%= link_to_remote

Hello,   How can I generate an overview/vector of all the methods winthin an S4 class? Similar to dir() in this Python code: >>> class SomeClass():  def some_method_1(self):   pass  def some_method_2(self):   pass   >>> dir(SomeClass) ['__doc__', '__module__', 'some_method_1', 'some_method_2'] >>>   Thanks in advance! Cheers!! Albert-Jan

Hi R experts,   The fix() function canbe used to edit normal functions. I would like to know whether it's also possible to use something similar to edit a method of an S4 class. In other words, is there a fix-like function that allows me to edit method definitions without having to go back to the source code?   setGeneric (name="doStuff",def =

Hi all, Just wondering about this: I''ve been dealing with classes/modules nested in several layers of namespaces. Here would be an example of a describe block: describe ClassOne::ClassTwo::ClassThree, "description here" do ... end What would be the easiest way to write something a little more terse, like: describe ClassThree, "description here" do ... end

Hi I run into problem trying to set expectations for the mockobject.class method, I had to undefine a method before I could set some expectation. Is there any better way of doing it? object = mock() .... klass = class <<object; self; end klass.send(:undef_method, "class") # I had to do this because Mocha utilizes "method_missing(symbol, *arguments, &block) "

I am working on a small model mixin called attachment_kung to make attachment_fu polymorphic, so you no longer need a different table and Model class for every associated attachment (Productimage, Ad_doc, etc). All you really need is one model and table to handel all your attachments - in some cases, anyway. I have the code working, but have run into one small hitch that I can''t seem to

On 11/11/19 01:40, Martin Maechler wrote: >>>>>> Duncan Murdoch >>>>>> on Sun, 10 Nov 2019 11:48:26 -0500 writes: > > > On 10/11/2019 9:17 a.m., Bryan Hanson wrote: > >> > >> > >>> On Nov 10, 2019, at 3:36 AM, Martin Maechler <maechler at stat.math.ethz.ch> wrote: > >>> >

>>>>> Duncan Murdoch >>>>> on Sun, 10 Nov 2019 11:48:26 -0500 writes: > On 10/11/2019 9:17 a.m., Bryan Hanson wrote: >> >> >>> On Nov 10, 2019, at 3:36 AM, Martin Maechler <maechler at stat.math.ethz.ch> wrote: >>> >>>>>>>> Gabriel Becker

I sent this earlier under with the subject "artificial sugar causes cancer" and I think some spam filters ate it. Here it is again: ====================================== All, If you look at http://rubyforge.org/tracker/index.php?func=detail&aid=6760&group_id=797&atid=3149 you''ll see that Chad (the submitter) found the source of the bug. Unfortunately, the source

Hi, I''m stuck right now with a problem concerning error handling. I''ll try to explain the problem in short: In a controller class I have a method edit: def edit @some_class = SomeClass.find(params[:id]) end The record originates from a database table. What happens if the user enters a field that fails validation and I return to my edit page? I get the idea that th