belongs-to

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Need some help for understanding search algorithms (A*, IDA*, DFS, BFS, IDDFS, etc. )

I have some troubles understanding some of the algorithms for searching, used in AI (artificial intelligence).[详细]

2023-01-29 14:13 分类：问答
referencing belongs_to association of a belongs_to association

I have the following relationships that work in the rails console but not when I run the site what I am doing wrong?[详细]

2023-01-29 06:27 分类：问答
rails 3 - belongs_to :uniqueness

I want do a one-to-one relationship, unique. So I have in a model this association and validation开发者_如何学编程[详细]

2023-01-28 17:47 分类：问答
saving comments object with relationship to a status update .build ruby

I have a status update, and comment db table. A user has many status updates, and a status update has many comments. Similar to facebook, When a users friend goes to the users feed page (show page),[详细]

2023-01-26 07:13 分类：问答
belongs_to objects in rails

Hi I\'m currently building a little forum application with rails (3). I\'m fairly new in the Rails matter and I got stuck with the topics.[详细]

2023-01-24 22:58 分类：问答
Setting a :has_many :through association on a belongs_to association Ruby on Rails

I have three models, each having the following associations: class Model1 < ActiveRecord::Base has_many :model2s[详细]

2023-01-18 15:53 分类：问答
How can I remove this logic from my view?

I am trying to wrap my head around this problem. I know views shouldn\'t have that much logic in them. I have an app with users, posts and comments. Users have many posts and comments.[详细]

2023-01-17 21:03 分类：问答
Rails Associations (belongs_to, has_many) can't save 2 ids in table with a create method (user, post, comment)

Trying to write a basic \"blog-like\" app in rails 3, I\'m stuck with associations. I need the create method save the post_id as well as the user_id in the comment table (which I need in order to retr[详细]

2023-01-16 06:58 分类：问答
Belongs_to based on value of a field

I have a table with entries, and each entries can have different account-types. I\'m trying to define and return the account based on the value of cindof[详细]

2023-01-15 17:25 分类：问答
belongs_to has_one structure

I have an application which has the following characteristics There are Clubs Each Club has Teams Each Team has Players[详细]

2023-01-12 16:56 分类：问答