Questions tagged [virtual-attribute]
113 questions
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How can I get a unique :group of a virtual attribute in rails?
I have several similar models ContactEmail, ContactLetter, etcetera.
Each one belongs_to a Contact
Each contact belongs_to a Company
So, what I did was create a virtual attribute for ContactEmail:
def company_name
contact =…

Satchel
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Rails 4 Minitest Testing Virtual Attributes
So I have a class TimeBank, and its being updated, and is getting two new virtual attributes which will manipulate two other existing attributes (DB columns).
class TimeBank < ActiveRecord::Base
# validations, consts, few other methods omitted for…

Todd
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Virtual attributes in nested forms are not recorded
You'll see in my code I've got a "has_many => belongs_to" models association and a nested form in the new actions's view.
Plus, I've used Using two separate fields for the same parameter in a Rails form handler?
The problem is the "prix" attribute…

Hugololo
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How do I do where queries across virtual attributes?
I have a Node model, that has a virtual attribute user_tags.
This is what it looks like at the console:
[42] pry(main)> n = Node.first
Node Load (0.5ms) SELECT "nodes".* FROM "nodes" ORDER BY "nodes"."id" ASC LIMIT 1
=> #

marcamillion
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use multiple virtual attribute form inputs to update a single model attribute
I have the following virtual attributes within my model:
attr_accessor :city, :zip, :street, :suite
In the new/edit form, I have form fields for each of these attributes. I can convert these four attributes into a single address_id with a method…

Tim Koelkebeck
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How to create read-only virtual attributes in Ruby models
I would like to create a virtual attribute that will always be included when you do model_instance.inspect. I understand that attr_reader will give me the same thing as just defining an instance method, but I would like this attribute to be part of…

Bill Brasky
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Yii virtual attribute and models
Can a virtual attribute represent a model ? I've read this wiki but don't find answer.
Edit :
The aim is to make my model more explicit for the user.
abstract class BaseDonnee{
protected $info;
public function representingColumn(){
…

sk001
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Trouble with virtual attribute for payments
Im currently trying to convert my price_in_cents field to the virtual attribute of price_in_dollars. I did some research and basically implemented everything from the railscast virtual attributes video, here is the link…

bigREDcode
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Preference values - static without tables using a model with virtual attributes
Im trying to eliminate two tables from my database. The tables are message_sort_options and per_page_options. These tables basically just have 5 records which are options a user can set as their preference in a preferences table. The preferences…

Michael
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Rails 3 - Validating against virtual attribute results in Exception
I have a virtual attribute, called currentBalance, in one of my models. An ajax call in my view populates this attribute. In the model I'm trying to validate that the net_weight is less than or equal to the currentBalance which represents total net…

user2967603
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Why are my virtual attributes not working?
I'm using Rails 3.2.17 trying to access two virtual attributes (expiration_amount & expiration_format) in a model but nothing I've tried allows me to access them.
Everything else seems to update correctly, however in my logs the virtual attributes…

Eric Norcross
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Virtual attributes on new models in Rails?
This certain part of my application takes cares of creation of Webshop model for store chains (like H&M) that has one. If the chain has a website that also is a webshop it creates one Webshop model.
If the website is not a webshop then it lets it be…

Antony Sastre
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Rails 3.2, virtual accessor and deprecation warning
I'm really confused about virtual attributes in Rails 3.2 and all my research haven't help making things clearer.
# input model
class Input < ActiveRecord::Base
# Attributes --------------------
attr_accessible :title, :parent
attr_accessor…

karellm
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Rails Virtual Attribute(s) Not Validating
I guess that in many ways I'm still a newbie with some of this rails stuff.
I have ActiveRecord Model for Payments.
But, it only has two things that get added to it's table and those are done once we get a positive response back from authorize.net.…

Drew Harris
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Virtual attribute in a Rails app - why is attr_writer not making my input work with my getter and setter methods?
I'm trying to roll my own tagging system. My setup is (at the moment) much like acts_as_taggable_on, with Tags, Taggable objects, and Taggings to relate the one to the other. Taggable is a module, which will be included in Events, Users, and…

Reb
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