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Questions - activemodel

In Rails 4, how do I reference an enum value when initializing my model?

I’m using Rails 4.2. It is not an option to upgrade at this time. I have this model class OrderItem < ApplicationRecord … enum type: { data: “Data”, product: “Product” } How do I initializ...
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Dave

ruby-on-rails

ruby-on-rails-4

enums

activemodel

Votes: 0

Answers: 2

Latest Answer

I'd guess that you're running into an STI conflict, not an enum issue. Rails reserves the type column name for Single Table Inheritance (STI) and uses type to store the class name but you're trying to...
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mu is too short

Validate existing records with overlap item ranges taking nil as infinite

I'm here because I've been looking around for some queries that could help to find existing records with overlapping item ranges but I couldn't find anything. Let's say I have a model named Cart. A C...
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Emilio Contreras

ruby-on-rails

ruby

activerecord

activemodel

Votes: 0

Answers: 1

Latest Answer

Using Range#overlaps?, ActiveRecord::Calculations#pluck and Array#any? Without special SQL query if Cart.pluck(:item_min, :item_max).any? { |min, max| (min..max).overlaps?(item_min..item_max) } erro...
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mechnicov

Active Record: NameError (undefined local variable or method `attributes&#39; for nil:NilClass Did you mean? attribute_names)

I recently migrated from Rails 6.1 to 7.0 and I keep getting the error when I try to sign up a user. NameError (undefined local variable or method `attributes' for nil:NilClass Did you mean? attribut...
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john Elisat

activemodel

ruby-on-rails-7

Votes: 0

Answers: 1

Latest Answer

You need to include Active Model Serialization wherever you're initializing the serializer. For instance, in your /application_controller.rb: class ApplicationController < ActionController::API ...
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axelmukwena

Postgresql JSONB nested form ruby on rails

I have product as active record table and option_type as activemodel model. option types is an array of objects as follows, [ {name: 'color', values: ['red', 'blue']}, {name: 'size', values: ['sma...
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Hemant Patil

ruby-on-rails

activemodel

nested-form-for

Votes: 0

Answers: 1

Latest Answer

I know this isn't the answer you're hoping for but instead of just tossing the whole lot into a JSONB column and hoping for the best you should model it as far as possible in a relational way: class P...
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