CakePHP 3 无法保存关联模型

Question

我正在更新一些表中的一些日志数据。我无法仅在关联模型 ModulesEmployees 上保存顶级 CoursesEmployees。看不到缺少什么。

类(class)员工表.php

    $this->hasMany('ModulesEmployees', [
        'dependent' => true,
        'foreignKey' => 'courses_employee_id'
    ]);

ModulesSlidesController.php

$this->loadModel('CoursesEmployees');

$CoursesEmployee = $this->CoursesEmployees
     ->get(65, [
           'contain' => ['ModulesEmployees'],
           'where' =>[
                ['ModulesEmployees.id' => 19]
            ]
        ]);

if (!$CoursesEmployee['modules_employees'][0]['started_on']) {
    $CoursesEmployee['modules_employees'][0]['started_on'] = date('Y-m-d H:i:s');
};

$this->CoursesEmployees->save($CoursesEmployee, ['associated' => ['ModulesEmployees']]);

返回对象

CoursesEmployee(array)
id65
employee_id3
course_id1
course_module_id1
completed_modules0
current_slide0
cid0
date_started(array)
progress0
modified(array)
created(array)
completed(false)
date_completed(null)
deleted(null)
modules_employees(array)
    0(object)
        id19
        courses_employee_id65
        course_module_id1
        started_on2015-10-04 21:00:10
        completed_on(null)
        completed(false)
        deleted(null)
[new](false)
[accessible](array)
[dirty](empty)
[original](empty)
[virtual](empty)
[errors](empty)
[repository]CoursesEmployees

Answer 1

仅保存脏实体/属性，而您在此处所做的操作(修改嵌套实体)只会将该嵌套实体标记为脏实体，父实体 CoursesEmployee 将保持不变，并且因此保存过程不会影响关联。

当不使用自动将父实体属性标记为脏的修补机制时，您必须自己执行此操作。

引用文档:

[...]

If you are building or modifying association data after building your entities you will have to mark the association property as modified with dirty():

$company->author->name = 'Master Chef';
$company->dirty('author', true);

<强> Cookbook > Database Access & ORM > Saving Data > Saving Associations

因此，在您的情况下，需要将 modules_employees 属性标记为脏，例如

$CoursesEmployee->dirty('modules_employees', true);