为 Doctrine 指定与 YAML 的关系
只是尝试在 YAML 文件中为 Doctrine 指定一些表结构和模型。我正在浏览此页面上的文档： http://www.doctrine-project.org/projects/orm/1.2/docs/manual/yaml-schema-files/en
我还不太清楚 < 中的每一行是什么关系部分正在做。
以下是该页面中的一些示例 YAML：
User:
columns:
username:
type: string(255)
password:
type: string(255)
contact_id:
type: integer
relations:
Contact:
class: Contact
local: contact_id
foreign: id
foreignAlias: User
foreignType: one
type: one
具体来说，关系，按顺序：
联系人 是.. 我猜测与此关系相关的其他对应表的名称？
类：联系是..到底是什么？将从此 YAML 创建的模型的名称？
local: contact_id 是本地密钥，我明白这一点。
foreign: id 是外键的字段名，我理解这个
foreignAlias: User 这一行是做什么的？
外国类型：一个
type: one: 我猜这两行一起指定了关系的类型，例如一对一？
感谢您的任何和所有帮助。
Just trying to specify some tables structures and models for Doctrine in a YAML file. I'm going through the documentation on this page: http://www.doctrine-project.org/projects/orm/1.2/docs/manual/yaml-schema-files/en
I haven't quite got a grasp on what each line in the relations section is doing.
Here's some sample YAML from that page:
User:
columns:
username:
type: string(255)
password:
type: string(255)
contact_id:
type: integer
relations:
Contact:
class: Contact
local: contact_id
foreign: id
foreignAlias: User
foreignType: one
type: one
Specifically, relations, in order:
Contact is.. I am guessing the name of the other corresponding table pertaining to this relationship?
class: contact is.. what exactly? The name of the model that will be created from this YAML?
local: contact_id is the local key, I understand this.
foreign: id is the field name of the foreign key, I understand this
foreignAlias: User what is this line doing?
foreignType: one
type: one: I am guessing these two lines together specify the type of relationship, eg, one-to-one?
Thanks for any and all help.
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没有。它是您稍后在访问用户的联系信息时使用的对象的名称。
$user->Contact->email
这可以与类名不同
这就是您所引用的类。需要是 YAML 中的类名（即联系人）
这是您可以从联系人对象访问用户信息的名称。
$联系人->用户->用户名
Nope. It is the Name of the object you later use when accessing contact information of a user.
$user->Contact->email
This can be different from the Class-Name
That is the class you are referencing. Needs to be the Classname in the YAML (i.e. Contact)
This is the name you can access the user information from a contact object.
$contact->User->username