has-and-belongs-to-many

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How to use HABTM fields in Active Admin filter section?

I\'m using Active Admin 0.3.2, and my database schema includes a few has_and_belongs_to_many relationships.I can create and display records just fine, but attempting to include them in the filter sect[详细]

2023-04-13 07:40 分类：问答
cakephp HABTM database upload cant find issue

I am new to cakePHP and fairly new to PHP as well, I have gone through some Youtube videos to help me make a basic site set up with CRUD pages for everything. I am now trying to set up the user signup[详细]

2023-04-11 07:58 分类：问答
Migration a has_and_belongs_to_many join table don't create the table

I\'m develop a web app with Rails 3.0.9 and Postgres 9.4 I\'m trying to create a join table for a has_and_belongs_to_many association, but when execute \"rake db:migrate\" the only one not executed mi[详细]

2023-04-11 03:36 分类：问答
rails - habtm association not saving to database

Product controller: def update params[:product][:category_ids] ||= [] @product = Product.find(params[:id])[详细]

2023-04-10 01:47 分类：问答
Query based on a HABTM association

I\'m trying to put together a query in ActiveRecord that is in part based on a HABTM association between project and item. This is what I\'m trying to do:[详细]

2023-04-06 01:42 分类：问答
Rails HABTM checkboxes don't save to database

I am beginning Rails programming and all I want to accomplish is to have a list of check boxes from which I can choose the corresponding categories for a product.[详细]

2023-04-05 13:22 分类：问答
Rails 3: HABTM, destroy and before_destroy callback

If I have read the rails guides correctly, a before_destroy callback that returns false will stop the object being destroyed by issuing a rollback command.[详细]

2023-04-03 03:15 分类：问答
BeforeSave and SaveAll on CakePHP

Ok so I have a relation: Tag HABTM Post. I allow the user to add tags while adding a post, so when he submit the post, the saveAll function saves and creates all the relationships.[详细]

2023-04-02 17:12 分类：问答
Using Has_and_belongs_to_many association in multi model view rails

I am new to rails and having trouble with views so excuse me if this is a simple question.I was wondering how add to a has_and_belongs_to_many association in the view.[详细]

2023-04-02 11:50 分类：问答
Pretty HABTM List Entry

I have a Recipe, Item, and Units table/model. I have a HABTM relationship with Recipe and Item, and I get the default multiple-select box when adding/editing Recipe. (am using Bake for everything for[详细]

2023-03-31 03:11 分类：问答