polymorphic-associations

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Suggestions on how to track tag count for a particular object

I\'m looking for suggestions on how to track the number of tags associated with a particular object in Rails. I\'m using acts_as_taggable_on and it\'s working fine. What I would like to be able to do[详细]

2023-01-02 17:00 分类：问答
jpa join query on a subclass

I have the following relationships in JPA (hibernate). Object X has two subclasses, Y and Z. Object A has a manyToOne relationship to object X. (Note, this is a one-sided relationship so object X ca[详细]

2023-01-02 12:52 分类：问答
How to model has_many with polymorphism?

I\'ve run into a situation that I am not quite sure how to model. EDIT: The code below now represent a working solution. I am still interested in nicer looking solutions, though.[详细]

2023-01-02 12:39 分类：问答
join same rails models twice, eg people has_many clubs through membership AND people has_many clubs through committee

Models: * Person * Club Relationships * Membership * Committee People should be able to join a club (Membership)[详细]

2023-01-02 11:04 分类：问答
How to combine two models in one RoR acts_as_tree treeview?

I have two simple models each with acts_as_tree, say Departments and Employees. My goal is to create a treeview combining both models in to one overall tree, like so:[详细]

2023-01-01 14:01 分类：问答
Rails: Polymorphic User Table a good idea with AuthLogic?

I have a system where I need to login three user types: customers, companies, and vendors from one login form on the home page.[详细]

2022-12-31 20:56 分类：问答
Rails preventing duplicates in polymorphic has_many :through associations

Is there an easy or at least elegant way to prevent duplicate entries in polymorphic has_many through associations?[详细]

2022-12-31 12:26 分类：问答
Associating Models with Polymorphic

I am trying to associate Contacts with Classes but as two different types. Current_classes and Interested_classes.[详细]

2022-12-31 04:46 分类：问答
How do I check if an instance has an object to skip displaying the values?

I have created a polymorphic association around a model called status. Some contacts will have a status associate开发者_开发问答d with it.Many won\'t.[详细]

2022-12-30 21:51 分类：问答
Ruby on Rails: How can I authenticate different user types from one place?

This is my first post on Stack Overflow. I am trying to build a system that authenticates three types of user with completely different site experiences: Customers, Employers, and Vendors.[详细]

2022-12-30 13:35 分类：问答