nomethoderror

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No Method error in UsersController

I began coding in Rails several weeks ago, and I can\'t figure out why I have this error. I\'m using Devise for log-ins and Formtastic for forms. The app was working correctly until I added the Acts_l[详细]

2023-03-14 18:16 分类：问答
Trying to validate the background property of an object when it is in the CSS style

Ruby version 1.9.2 gem version 1.8.1 IE version 8 in compatibility mode I have an object on the page (is actually a cell in a table) that is defined as a \"TD class=burst>100<\" in the DOM (HTM[详细]

2023-03-12 18:12 分类：问答
Rails listing problem

I generated a scaffold and I created a casual application. I want to list the scaffold items on a sidebar, everywhere on the application (inside application.html.erb).[详细]

2023-03-06 01:00 分类：问答
Rails: Error "NoMethodError: undefined method `<' for nil:NilClass", missing some gem?

Here is model class class Item::Item < ActiveRecord::Base validates_presence_of :start_date, :end_date, :product_id[详细]

2023-02-18 01:40 分类：问答
One-to-many nested attributes in rails

This is not a question, but hopefully someone can benefit from it. When you try to create or modify a one-to-many nested association make sure that you\'re passing an array.[详细]

2023-02-14 02:48 分类：问答
Rails error “NoMethodError” - Just started to use Rails

Hopefully this is a very easy problem to solve as I am just starting out with Rails. I have one database (Products) which contains a number of product attributes including brand, colour and product_t[详细]

2023-02-11 13:55 分类：问答
Rspec error: undefined method 'change' for end.should change(Model, :count)

This is a follow on after completing the Ruby on Rails tutorial. I\'ve spent quite a while trying to mix and match gems to find a solution since I really have no idea how Rspec is having trouble iden[详细]

2023-02-09 15:53 分类：问答
fbgraph: undefined method `encode_json' for true:TrueClass

My code: def start redirect_to client.authorization.authorize_url(:redirect_uri => callback_oauth_url,[详细]

2023-02-06 19:25 分类：问答
Why the method is not called -- jRuby Rails3

I have this Java class class Dog { private String name开发者_C百科; public Dog() { name = \"Fido\"; }[详细]

2023-01-30 01:42 分类：问答
MacRuby, error when using Sequel

I have just installed Sequel using the command sudo macgem install sequel. It tells me sequel-3.18.0 was successfully installed.[详细]

2023-01-28 06:35 分类：问答