Symfony 1.4,学说:多连接到一张表 [英] Symfony 1.4, doctrine: multiple join to one table
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问题描述
方案:
User:
options:
collate: utf8_unicode_ci
charset: utf8
tableName: users
columns:
ID:
type: integer(4)
primary: true
autoincrement: true
USERNAME:
type: string(255)
notnull: true
Task:
options:
collate: utf8_unicode_ci
charset: utf8
tableName: tasks
columns:
ID:
type: integer(4)
primary: true
autoincrement: true
CREATED_ID:
type: integer(4)
notnull: true
OWNER_ID:
type: integer(4)
notnull: true
DESCRIPTION:
type: text
notnull: true
relations:
User:
onDelete: CASCADE
local: CREATED_ID
foreign: ID
User:
onDelete: CASCADE
local: OWNER_ID
foreign: ID
如您所见,Task.OWNER_ID 和 Task.CREATED_ID 指向 User.ID - 尽管如此,在实际 SQL 表中只有 OWNER_ID 显示为外键:
as you can see, the Task.OWNER_ID and Task.CREATED_ID points at User.ID - Still, only OWNER_ID appears as foreign key in the actual SQL table:
CREATE TABLE `users` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`username` varchar(255) COLLATE utf8_unicode_ci NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
CREATE TABLE `tasks` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`created_id` int(11) NOT NULL,
`owner_id` int(11) NOT NULL,
`description` text COLLATE utf8_unicode_ci NOT NULL,
PRIMARY KEY (`id`),
KEY `owner_id_idx` (`owner_id`),
CONSTRAINT `tasks_owner_id_users_id` FOREIGN KEY (`owner_id`) REFERENCES `users` (`id`) ON DELETE CASCADE,
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
Symfony 不会丢弃任何错误.我不能定义更多的表连接吗?
Symfony doesnt drop any error. Am I not allowed to define more join to a table?
推荐答案
你的方案……不太正确.试试这个
Your scheme is ... not really correct. Try this
relations:
UserCreator:
class: User
onDelete: CASCADE
local: CREATED_ID
foreign: ID
foreignAlias: Tasks
UserOwner:
class: User
onDelete: CASCADE
local: OWNER_ID
foreign: ID
foreignAlias: Tasks
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