Ruby on Rails 复数（控制器）和单数（模型）约定 - 解释
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Ruby on Rails plural (controller) and singular (model) convention - explanation
提问by
As per Ruby on Rails convention, controller names get pluralized while model names are singular. Example : a Users controller, but a User model.
根据 Ruby on Rails 约定，控制器名称采用复数形式，而模型名称采用单数形式。示例：一个用户控制器，但是一个用户模型。
rails generate controller Users
rails generate model User name:string email:string
Now open migration file
现在打开迁移文件
class CreateUsers < ActiveRecord::Migration
def change
create_table :users do |t|
t.string :name
t.string :email
t.timestamps
end
end
end
Here table name is plural (users).
这里表名是复数（用户）。
So my question is - Why table name is plural (users) even though the model name is singular (User)?
所以我的问题是 - 为什么表名是复数（用户），即使模型名称是单数（用户）？
采纳答案by AMIC MING
Ruby on Rails follow linguistic convention. That means a model represents a single user, whereas a database table consists of many users.
Ruby on Rails 遵循语言约定。这意味着模型代表单个用户，而数据库表由多个用户组成。
回答by Emily
An instance of your Usermodel represents a single user, so is singular. The userstable, by contrast, holds all of your users, so it's plural.
User模型的一个实例代表单个用户，因此是单数。users相比之下，该表包含您的所有用户，因此它是复数形式。
回答by Justin D.
To complete Emily's answer
完成艾米丽的回答
An instance of your User model represents a single user, so is singular. The users table, by contrast, holds all of your users, so it's plural.
您的 User 模型的实例代表单个用户，因此是单数。相比之下，users 表包含所有用户，因此它是复数形式。
回答by Ganesh Arulanantham
in rails conntroller and table name are plural model alone is singular.In a two word name second word is pluralized !
在 rails 控制器和表名称是复数模型单独是单数。在两个词名称中，第二个词是复数！
回答by John Paul Ashenfelter
Because the table holds users. Its just the convention.
因为该表包含用户。它只是公约。
