has-many-through

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has_many associations table confusing

My goal here is to print list of users from specified city and category with their names, address and club name.Name and address display correctly but when i add club name,says undefined method member[详细]

2023-04-13 07:42 分类：问答
What is the proper way to access a join model's value?

I have users and projects and they are associated through a has_many :through model called ownerships. On the project show page, I would like to list the name of the project, the users associated with[详细]

2023-04-13 05:10 分类：问答
How do i access attributes in has_many :through relationship?

How do i access store name here?@deal instance can 开发者_如何学Pythonaccess perfectly item name,but when i try to access store name it gives me[详细]

2023-04-11 18:07 分类：问答
Active record query in rails with conditional join

I have models Category and Deal and having has_many :through mapping via categories_deals. I have a another model, City, which ha开发者_高级运维s a has_many :through mapping via cities_dealswith dea[详细]

2023-04-11 14:30 分类：问答
rails - meta_search not filtering results properly

I have a product model, a category model, and a product_categorization model (has_many..., through association).I am using the meta_search gem to conduct product searches.For some reason, even though[详细]

2023-04-11 01:29 分类：问答
How can I build a 'has-many-through' relation linking more than 2 models?

I have 3 models eg; TABLE `users` `id` INT `username` VARCHAR(32) ... TABLE `books` `id` INT `title` VARCHAR(100)[详细]

2023-04-10 16:51 分类：问答
join table and has_many relationships not working

I have two items, users and posts, and a join table linking them together.The two items have a has_many relationship with each other (:through the join table).I created the join table after creating t[详细]

2023-04-10 07:42 分类：问答
Rails: has_many through association - did I get this right?

I building a photo sharing web application using Rails 3.1. I just want to verify that I got the associations right.[详细]

2023-04-06 01:11 分类：问答
Eager Loading with "has many through" -- do I need Arel?

I have three tables: users, members, projects.The middle is a join table expressing a has-many-through between the other two tables; and it has some attributes of interest, including join_code and act[详细]

2023-04-05 15:58 分类：问答
One-To-Many-Through adding join model instances

My models: class Test include DataMapper::Resource property :id, Serial property :name, String, :default => \'\'[详细]

2023-04-04 04:06 分类：问答