CakePhp 3 - 保存关联模型失败并以mysql错误结束

Question

i have a question about saving associated data with CakePhp 3. Unfortunately I can't figure out what's the problem is. My scenario is very easy. I want to save the following request-data:

$data = [
    'name' => 'article 1',
    'comments' => [
        (int) 0 => [
            'description' => 'comment 1'
        ]
    ]
]

In this case. I want to save a new article-entity with a new comment-entity. So for both entities it's a new record in the table. So there's is the articles-table and a comments-table where each comment has a connection to the article-table.

ArticlesTable.php

    $this->hasMany('Comments', [
        'foreignKey' => 'article_id'
    ]);

CommentsTable.php

$this->belongsTo('Articles', [
    'foreignKey' => 'article_id',
    'joinType' => 'INNER'
]);

Patched Article

$article = $this->Articles->patchEntity($article, $data, [
    'associated' => [
        'Comments'
    ]
]);

Debug Print - Patched Article

object(App\Model\Entity\Article) {

    'name' => 'article 1',
    'comments' => [
        (int) 0 => object(App\Model\Entity\Comment) {

            'description' => 'comment 1',
            '[new]' => true,
            '[accessible]' => [
                '*' => true
            ],
            '[dirty]' => [
                'description' => true
            ],
            '[original]' => [],
            '[virtual]' => [],
            '[errors]' => [],
            '[invalid]' => [],
            '[repository]' => 'Comments'

        }
    ],
    '[new]' => true,
    '[accessible]' => [
        '*' => true
    ],
    '[dirty]' => [
        'name' => true,
        'duration' => true,
        'comments' => true
    ],
    '[original]' => [],
    '[virtual]' => [],
    '[errors]' => [],
    '[invalid]' => [],
    '[repository]' => 'Articles'

}

SQL Error:

Error: SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'description, created, modified) VALUES (3, 'comment 1', '2017-05-22 20:36:59', '2017-05-22 20:3' at line 1

SQL Query:

BEGIN
INSERT INTO articles (name, created, modified) 
VALUES 
  (
    'article 1', '2017-05-22 20:36:59', 
    '2017-05-22 20:36:59'
  )
INSERT INTO comments (
  article_id, description, created, modified
) 
VALUES 
  (
    3, 'comment 1', '2017-05-22 20:36:59', '2017-05-22 20:36:59'
  )
ROLLBACK

Here's super detailed all the stuff what I'm doing. I am just confused cause as far as I remember this is the way how I normally do it all the time in Cakephp 3. Sorry to ask such a simple question. I just can't figure it out. So do I miss something here? Can someone see my fault?

Answer 1

You shouldn't need to write SQL queries for simple entity insertion in cakephp3, please have a look at https://book.cakephp.org/3.0/en/orm/saving-data.html

In your articles add action you should use $this->Articles->save();

if $this->request->is('post') {

    $article = $this->Articles->newEntity($this->request->data());

    $this->Articles->save($article);

}