设置策略设置为NONE的主键的值 [英] Set value for the primay key with strategy set to NONE

问题描述

我有一个实体类，如下所示：

 <？php 
 
命名空间实体; 
 
 / ** @Entity @Table（name =User）* / 
 class User 
 {
 / ** 
 * @Id 
 * @Column（type =string，length = 12）
 * / 
 private $ no; 
  

根据Doctrine 2识别码生成策略部分：

NONE：告诉您的代码，
标识符被分配（从而
生成）。
赋值必须在
新实体传递给
EntityManager＃persist之前进行。 NONE是
相同的，完全离开
@GeneratedValue。

这意味着，我需要一种方式所以我可以在调用持久化之前设置值。

调用 ./ doctrine orm：generate-entities t生成setter函数，我必须在类中手动写入吗？

  / ** 
 *设置否
 * 
 * @param string $ no 
 * / 
 public function setNo（$ no）
 {
 $ this-> no = $没有; 
} 
  

这是正确的方法吗？

解决方案

没有正确的方法来做到这一点。 Generate-entities命令只是一个帮手。没有什么你可以使用。你可以随便做。

分配策略的唯一要求是，当$ em-> persist（）为

例如，在分配的ID的情况下，将其设置为构造函数中必需的参数是有意义的：

  class User 
 {
 private $ no; 
 public function __construct（$ no）
 {
 $ this-> no = $ no; 
} 
} 
  

I have an Entity class that looks like this:

<?php

namespace Entities;

/** @Entity @Table(name="User") */
class User
{
    /**
     * @Id
     * @Column(type="string", length=12)
     */
    private $no;

Based on Doctrine 2 Identifier Generation Strategy section:

NONE: Tells Doctrine that the identifiers are assigned (and thus generated) by your code. The assignment must take place before a new entity is passed to EntityManager#persist. NONE is the same as leaving off the @GeneratedValue entirely.

That means, I need a way so that I can set the value before calling persist.

Calling ./doctrine orm:generate-entities wouldn't generate a setter function, do I have to write it manually in the class?

/**
 * Set no
 *
 * @param string $no
 */
public function setNo($no)
{
    $this->no = $no;
}

Is this the correct way to do it?

解决方案

There is no "correct" way to do this. the Generate-entities command is just a helper. Nothing that you HAVE to use. You can do as you please.

The only requirement with the assigned strategy is, that the id field has to be non-null when $em->persist() is called.

For example in the case of an assigned ID it makes sense to make it a required parameter in the constructor:

class User
{
    private $no;
    public function __construct($no)
    {
        $this->no = $no;
    }
}

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