has-many

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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
Rails has_many with finder_sql and name_scope in combination return nil

For example lets say you have: class Model < AR::Base has_many :somethings, :finder_sql => \"SELECT * FROM somethings\"[详细]

2023-04-11 17:03 分类：问答
has_many :through - complicated model

I have a pretty complicated set of models and I\'m trying to figure out how to set it all up so that rails will generate chained queries (though I\'m not sure it is possible). So my question ends up b[详细]

2023-04-11 02:02 分类：问答
Ruby on Rails 3: How to access an attribute of each record in a has_many query

I wasn\'t sure how to phrase it in the title, but what I\'m trying to do the following. I have 2 models that have the following relationships:[详细]

2023-04-09 11:53 分类：问答
How to save objects in list without unique ID (belongsTo, hasMany)

When I have collection, where each object is unique but they belong to some parentId, how should I store it?[详细]

2023-04-08 20:04 分类：问答
Rails/ActiveRecord has_many question

I am using Ruby 1.8.7 and Rails 2.3.5 So I am trying to figure out why my has_many association doesn\'t work properly. I have 2 tables in the database, Videos and Comments. Inside the Comments table[详细]

2023-04-07 23:41 分类：问答
Rails 3.1, has_many relationship and new records problem

Supose I have a simple has_many relationship betwen model_1 and model_2: class Model1 < ActiveRecord::Base[详细]

2023-04-05 08:27 分类：问答
metasearch has_many where all/none has to match

Im trying to make a metasearch or alternatively a scope that gives me all objects that doesnt have any of its has_many-association equal to type == \"Something\".[详细]

2023-04-04 08:04 分类：问答
Multiple has_many relationships to the same class

I\'m building a football game and I\'m having trouble creating Club and Match classes. I want to be able to do this:[详细]

2023-04-03 07:12 分类：问答
Suppress Autoincrement during FasterCSV Load

I\'m trying to export and import two related models using FasterCSV.The first model is Task and the second开发者_运维知识库 model is PrecedingTask.Task has many preceding_tasks.[详细]

2023-04-01 19:21 分类：问答