has-one
CakePHP: saveAll with hasOne plus a HABTM
I have two models set up that I need to save inside one form.When the user uses the \"/deliveries/add/\" form, I need it to save a new delivery, and also save a new license that is attached to that de[详细]
2022-12-29 15:56 分类：问答Ruby on Rails has_one Model Not Supplying ID Column
I have a legacy rails (version 1.2.3) app which runs without issue on a number of servers (not to mention my local environment). Deployed to its newest server, though, and I now get ActiveRecord::Stat[详细]
2022-12-28 05:19 分类：问答Rails: Using build with a has_one association in rails
In this example, I create a user with no profile, then later on create a profile for that user. I tried using build with a has_one association but that blew up. The only way I see this working is usin[详细]
2022-12-23 03:57 分类：问答Rails: associate model with two of its kind
im trying to do this: class Event < ActiveRecord::Base belongs_to :previous_event has_one :event, :as => :previous_event, :foreign_key => \"previous_event_id\"[详细]
2022-12-23 03:14 分类：问答If I use :class_name attribute to has_one, what do I put in the migration?
I have a model in my Rails app that uses the :class_name attribute for has_one: class Foo < ActiveRecord:Base[详细]
2022-12-18 08:23 分类：问答ActiveRecord has_one relationship does not return in certain cases
Given three models that are each nested in each other. If I create the top-level object and build_* the other child objects, I can retrieve all child objects through the relationships before and after[详细]
2022-12-15 07:22 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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