similar to: Automatted Getter/Setter

Is anyone could help me to resolve this problem?I'm presently an SAS user for my application and was exploring R to use it for my application.I have already posted this question on using my 32 bit machine with 2GB RAM and from what i understood was to use a 64Bit machine .I tried using 64bit machine using 4GB RAM .I'm running predictive analytics using R and to calibrate my model i used to

Hi everyone, just wanted to ask what's the smartest/recommended way of defining getter and setter function *shortcuts* (i.e. something like "[", "[<-") for Reference Class objects? Or is it desired to not use this stuff, but define methods like 'obj$getSubset(row=1:3, col=1)' and 'obj$setSubset(value=x)' instead? I have some example code that might

Hi, I can''t find how do i created a getter and setter property for a non db property. what i have done isnt working, i have a cnt mass assign error. Here is what i''ve done: attr_accessor :creator_is_participant def creator_is_participant @participe end def creator_is_participant=(participe) if participe == true @participe = true else @participe

hi people I don''t know much about ajax - jquery. And right now I need to use some functionality with them. In a form (sales model) I have the following code: <div> <%= f.label :product_id, "Product" %> <%= f.collection_select( :product_id, Product.all, :id, :name, options={} ) %> </div> <div> <%= f.label :price,

Dear All, For a data mining project, I am relying heavily on the RandomForest and Party packages. Due to the large size of the data set, I have often memory problems (in particular with the Party package; RandomForest seems to use less memory). I really have two questions at this point 1) Please see how I am using the Party and RandomForest packages. Any comment is welcome and useful.

Hi, I was wondering if there was a way to store the results of a computationally expensive "getter" call on an S4 object, so that it is only calculated once for each object. Trivial example: let's say I want to cache the "expensive" area calculation of a square object. setClass("Square", representation( length='numeric',

Hi, I am having trouble using before_create when I have an specialized setter method: before_save :set_campaign_start #----------------------------------------------------------------------- ------- def set_campaign_start self.campaign_start = Time.now end # We want the date to always start at midnight

I have written the followign setter to raise an exception when the field disabled_on is beeing assigned a value minor or equal that the enabled_on field. class Survey < ActiveRecord::Base def disabled_on=(date) raise AssignmentException if date != nil and date <= self.enabled_on write_attribute(:disabled_on, date) end end The matter is that this method never gets called, as I

I have a virtual attribute ''tags'' , and defined a setter method for it tags=(val). My setter method is not called while creating a Article. I copied my rails 3.2.11 code in rails 4, it was perfectly working in former. I want to know who can i use setter method for virtual attribute in rails 4. Or is it a bug in rails 4. I raised this as a issue in

Hi, I m trying to link into the process of setting an belongs_to attribute in my model. Unfortunetly, it does not seem to be as easy as for "normal" attributes. I ve tried the following: class Treatment < ActiveRecord::Base belongs_to :drug def drug=(new_value) ''my stuff super new_value end However, that does not work. Ive also tried self[:drug] =

The set_decode_error_handler function allows the User to set the decoding error scheme to be used when non UTF8 characters are encountered in Python 3. The function has no effect in Python 2. Signed-off-by: Matteo Cafasso <noxdafox@gmail.com> --- generator/python.ml | 16 ++++++++++++++++ python/handle.c | 18 ++++++++++++++++-- python/t/test830RHBZ1406906.py |

Hey everyone, I am developing a package and I am wondering if there is a good practice for naming classes, builders, attributes getters and setters when dealing with object composition. I know that it is usually a good practice to give to the builder the same name as the class and, if possible, to avoid to use upper case letters. My problem is that, when I build an object containing an other

Hi, I have a AR model that I want to limit changes to be only via instance methods that I''ve added. How do I prevent my other sw from setting the instance''s attributes? I know about #attr_protected and #attr_readonly. But the first leaves the individual setters as they were and the second stops all changes. I want something like "attr_private" Thoughts? Thanks,

(This message was originally written on StackOverflow -- the formatting is much prettier there -- http://stackoverflow.com/questions/1283046/problem-with-setter-override-on-activerecord) This is not exactly a question, it''s rather a report on how I solved an issue with write_attribute when the attribute is an object, on Rails'' Active Record. I hope this can be useful to others

Hi, I have some problems with an application where I''m using custom accessors to do currency conversions. In my model, I have a price attribute in the database that stores the value in cents, to avoid future problems with float arithmetic and round. But at the views, I would like to show the price in euros, with decimal for the cents. So I defined a new attribute called price_in_euros,

Hi all, I mentioned this on the forum but wasn''t sure if anyone was paying attention. I was just wondering if it would be possible to replace the get_something/set_something style methods with the more Rubyish something/something= style (i.e. uniform access). For example, the Button class currently has button.get_label and button.set_label("foo"). It would give me warm,

Hi, I have some problems with an application where I''m using custom accessors to do currency conversions. In my model, I have a price attribute in the database that stores the value in cents, to avoid future problems with float arithmetic and round. But at the views, I would like to show the price in euros, with decimal for the cents. So I defined a new attribute called price_in_euros,

Hi list, first evening of playing with rails, so please forgive me if I ask something stupid. ;-) I created a User model and tried to use ActiveRecord callbacks to convert the password to sha1 just before saving it. For some reason postgresql gives me a error because the given password is null. To test even further I tried to change :login too, same error happens, :login is empty too. I am sure

Hello people, I''d like to detect whether an attribute of a model has vaildates_presence_of applied to it so I can automatically apply a mandatory (*) to the field...it doesn''t look easy...any ideas? Cheers, -- Dan Webb http://www.danwebb.net

Hi Matthew, > In the process of porting the Polly plug-in to Windows we encountered a couple > of issues stemming from the use (within Polly) of global data from LLVM. > > By far the most common occurrence of this is the definition by a class of a > publicly accessible static ID, the address of which is used to uniquely identify > the class. For example > > class