我正在与Codeigniter一起工作，并且在理解将表和数据插入MySQL时遇到的问题有一些困难。
这是我试图通过命令行使用Spark运行的完整代码。
<?php namespace Myth\Auth\Database\Migrations;
use CodeIgniter\Database\Migration;
class CreateAuthTables extends Migration
{
public function up()
{
/*
* Users
*/
$this->forge->addField([
'id' => ['type' => 'int', 'constraint' => 11, 'unsigned' => true, 'auto_increment' => true],
'email' => ['type' => 'varchar', 'constraint' => 255],
'username' => ['type' => 'varchar', 'constraint' => 30, 'null' => true],
'password_hash' => ['type' => 'varchar', 'constraint' => 255],
'reset_hash' => ['type' => 'varchar', 'constraint' => 255, 'null' => true],
'reset_time' => ['type' => 'datetime', 'null' => true],
'activate_hash' => ['type' => 'varchar', 'constraint' => 255, 'null' => true],
'status' => ['type' => 'varchar', 'constraint' => 255, 'null' => true],
'status_message' => ['type' => 'varchar', 'constraint' => 255, 'null' => true],
'active' => ['type' => 'tinyint', 'constraint' => 1, 'null' => 0, 'default' => 0],
'force_pass_reset' => ['type' => 'tinyint', 'constraint' => 1, 'null' => 0, 'default' => 0],
'permissions' => ['type' => 'text', 'null' => true],
'created_at' => ['type' => 'datetime', 'null' => true],
'updated_at' => ['type' => 'datetime', 'null' => true],
'deleted_at' => ['type' => 'datetime', 'null' => true],
]);
$this->forge->addKey('id', true);
$this->forge->addUniqueKey('email');
$this->forge->addUniqueKey('username');
$this->forge->createTable('users', true);
/*
* Auth Login Attempts
*/
$this->forge->addField([
'id' => ['type' => 'int', 'constraint' => 11, 'unsigned' => true, 'auto_increment' => true],
'ip_address' => ['type' => 'varchar', 'constraint' => 255, 'null' => true],
'email' => ['type' => 'varchar', 'constraint' => 255, 'null' => true],
'user_id' => ['type' => 'int', 'constraint' => 11, 'unsigned' => true, 'null' => true], // Only for successful logins
'date' => ['type' => 'datetime'],
'success' => ['type' => 'tinyint', 'constraint' => 1],
]);
$this->forge->addKey('id', true);
$this->forge->addKey('email');
$this->forge->addKey('user_id');
// NOTE: Do NOT delete the user_id or email when the user is deleted for security audits
$this->forge->createTable('auth_logins', true);
/*
* Auth Tokens
* @see https://paragonie.com/blog/2015/04/secure-authentication-php-with-long-term-persistence
*/
$this->forge->addField([
'id' => ['type' => 'int', 'constraint' => 11, 'unsigned' => true, 'auto_increment' => true],
'selector' => ['type' => 'varchar', 'constraint' => 255],
'hashedValidator' => ['type' => 'varchar', 'constraint' => 255],
'user_id' => ['type' => 'int', 'constraint' => 11, 'unsigned' => true],
'expires' => ['type' => 'datetime'],
]);
$this->forge->addKey('id', true);
$this->forge->addKey('selector');
$this->forge->addForeignKey('user_id', 'users', 'id', false, 'CASCADE');
$this->forge->createTable('auth_tokens', true);
/*
* Password Reset Table
*/
$this->forge->addField([
'id' => ['type' => 'int', 'constraint' => 11, 'unsigned' => true, 'auto_increment' => true],
'email' => ['type' => 'varchar', 'constraint' => 255],
'ip_address' => ['type' => 'varchar', 'constraint' => 255],
'user_agent' => ['type' => 'varchar', 'constraint' => 255],
'token' => ['type' => 'varchar', 'constraint' => 255, 'null' => true],
'created_at' => ['type' => 'datetime', 'null' => false],
]);
$this->forge->addKey('id', true);
$this->forge->createTable('auth_reset_attempts');
/*
* Groups Table
*/
$fields = [
'id' => ['type' => 'int', 'constraint' => 11, 'unsigned' => true, 'auto_increment' => true],
'name' => ['type' => 'varchar', 'constraint' => 255],
'description' => ['type' => 'varchar', 'constraint' => 255],
];
$this->forge->addField($fields);
$this->forge->addKey('id', true);
$this->forge->createTable('auth_groups', true);
/*
* Permissions Table
*/
$fields = [
'id' => ['type' => 'int', 'constraint' => 11, 'unsigned' => true, 'auto_increment' => true],
'name' => ['type' => 'varchar', 'constraint' => 255],
'description' => ['type' => 'varchar', 'constraint' => 255],
];
$this->forge->addField($fields);
$this->forge->addKey('id', true);
$this->forge->createTable('auth_permissions', true);
/*
* Groups/Permissions Table
*/
$fields = [
'group_id' => ['type' => 'int', 'constraint' => 11, 'unsigned' => true, 'default' => 0],
'permission_id' => ['type' => 'int', 'constraint' => 11, 'unsigned' => true, 'default' => 0],
];
$this->forge->addField($fields);
$this->forge->addKey(['group_id', 'permission_id']);
$this->forge->addForeignKey('group_id', 'auth_groups', 'id', false, 'CASCADE');
$this->forge->addForeignKey('permission_id', 'auth_permissions', 'id', false, 'CASCADE');
$this->forge->createTable('auth_groups_permissions', true);
/*
* Users/Groups Table
*/
$fields = [
'group_id' => ['type' => 'int', 'constraint' => 11, 'unsigned' => true, 'default' => 0],
'user_id' => ['type' => 'int', 'constraint' => 11, 'unsigned' => true, 'default' => 0],
];
$this->forge->addField($fields);
$this->forge->addKey(['group_id', 'user_id']);
$this->forge->addForeignKey('group_id', 'auth_groups', 'id', false, 'CASCADE');
$this->forge->addForeignKey('user_id', 'users', 'id', false, 'CASCADE');
$this->forge->createTable('auth_groups_users', true);
/*
* Users/Permissions Table
*/
$fields = [
'user_id' => ['type' => 'int', 'constraint' => 11, 'unsigned' => true, 'default' => 0],
'permission_id' => ['type' => 'int', 'constraint' => 11, 'unsigned' => true, 'default' => 0],
];
$this->forge->addField($fields);
$this->forge->addKey(['user_id', 'permission_id']);
$this->forge->addForeignKey('user_id', 'users', 'id', false, 'CASCADE');
$this->forge->addForeignKey('permission_id', 'auth_permissions', 'id', false, 'CASCADE');
$this->forge->createTable('auth_users_permissions');
}
//--------------------------------------------------------------------
public function down()
{
// drop constraints first to prevent errors
if ($this->db->DBDriver != 'SQLite3')
{
$this->forge->dropForeignKey('auth_tokens', 'auth_tokens_user_id_foreign');
$this->forge->dropForeignKey('auth_groups_permissions', 'auth_groups_permissions_group_id_foreign');
$this->forge->dropForeignKey('auth_groups_permissions', 'auth_groups_permissions_permission_id_foreign');
$this->forge->dropForeignKey('auth_groups_users', 'auth_groups_users_group_id_foreign');
$this->forge->dropForeignKey('auth_groups_users', 'auth_groups_users_user_id_foreign');
$this->forge->dropForeignKey('auth_users_permissions', 'auth_users_permissions_user_id_foreign');
$this->forge->dropForeignKey('auth_users_permissions', 'auth_users_permissions_permission_id_foreign');
}
$this->forge->dropTable('users', true);
$this->forge->dropTable('auth_logins', true);
$this->forge->dropTable('auth_tokens', true);
$this->forge->dropTable('auth_reset_attempts', true);
$this->forge->dropTable('auth_groups', true);
$this->forge->dropTable('auth_permissions', true);
$this->forge->dropTable('auth_groups_permissions', true);
$this->forge->dropTable('auth_groups_users', true);
$this->forge->dropTable('auth_users_permissions', true);
}
}
运行它时，出现以下错误：
Can't create table `catering`.`users` (errno: 150 "Foreign key constraint is incorrectly formed")
/var/www/vhosts/cateringtest.eu/httpdocs/appstarter/vendor/codeigniter4/framework/system/Database/MySQLi/Connection.php - 330
然后进一步研究我在PhpMyAdmin中运行show engine innodb status并发现LATEST FOREIGN KEY ERROR的错误，该错误给了我以下错误：
2019-12-10 21:13:11 7f3ae42ab700 Error in foreign key constraint of table catering/auth_groups_users:
there is no index in referenced table which would contain
the columns as the first columns, or the data types in the
referenced table do not match the ones in table. Constraint:
,
CONSTRAINT "auth_groups_users_user_id_foreign" FOREIGN KEY ("user_id") REFERENCES "users" ("id") ON DELETE CASCADE
The index in the foreign key in table is "auth_groups_users_user_id_foreign"
See http://dev.mysql.com/doc/refman/5.6/en/innodb-foreign-key-constraints.html
for correct foreign key definition.
我在这里很难找到问题所在。为什么表插入失败？