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我有一个名为 Game 的模型,它与 Planet 模型具有 hasMany 关系(而该模型又定义回 Game 模型的 belongsTo )。

在创建我的第一个游戏记录时,我使用它的starting_num_planets 字段的值来尝试创建那么多关联的行星记录。GamesController 通过调用 PlanetsController 中的一个函数来执行此操作,每次调用该函数时,都会返回一个与 Planet 模型匹配的数组,并且应该是可保存的,这是 GamesController 尝试做的下一件事。

游戏记录创建得很好,但在我试图访问第二个控制器的功能时,我显然得到了一个无效的 SQL 语法错误。这很奇怪,因为我直到几行之后才尝试保存。

以下是 GamesController 的代码:

public function newgame() {
        if ($this->request->is('post')) {
            $this->Game->create();
            if ($this->Game->save($this->request->data)) {
                // Add the 'id' element to the Game array and put the whole game record on the session
                $this->request->data['Game']['id'] = $this->Game->getLastInsertID();
                $this->Session->write('Game', $this->request->data);

                // Create the number of planet records indicated by start_num_planets
                $count = 0;
                $planets = array();
                while ($count < $this->request->data['Game']['starting_num_planets']) {
                    $planetData = $this->Game->Planet->generate_planet_data($this->request->data['Game']['id']);
                    $planets[$count] = $planetData;
                    $this->Game->Planet->create();
                    $this->Game->Planet->save($planetData);
                    $count++;
                }

                $this->redirect(array('action' => 'main'));
            } else {
              $this->Session->setFlash('There was a problem creating the game.');
            }
        }
    }

在此行的行号处:

$planetData = $this->Game->Planet->generate_planet_data($this->request->data['Game']['id']);

我正进入(状态:

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 'generate_planet_data' at line 1

SQL Query: generate_planet_data

我不知道为什么,我很害怕。

这是在 PlanetsController 中调用的函数:

public function generate_planet_data($gameId) {
    $planetNames = array(1 => 'name1', 2 => 'name2', 3 => 'name3', 4 => 'name4');
    $planetImages = array(1 => '01', 2 => '02', 3 => '03', 4 => '04');
    $planetData = array();
    // game_id is the foreign key, do I have to explicitly state that in the model?
    $planetData['Planet']['game_id'] = $gameId;
    $planetData['Planet']['planet_name'] = $planetNames[rand(1,10)];
    $planetData['Planet']['planet_image_file'] = $planetImages[rand(1,4)];
    return $planetData;
}

Game.php 中的模型关联很简单:

var $hasMany = array(
    'Planet' => array(
        'className' => 'Planet'),
    'Player' => array(
        'className' => 'Player'
    )
);

谁能告诉我出了什么问题?这是我第一次尝试使用关联模型,结果有点不对劲!:)

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1 回答 1

2

问题是你在这里调用了一个缺失的函数:

$planetData = $this->Game->Planet->generate_planet_data($this->request->data['Game']['id']);

如您所说generate_planet_data,在控制器上。所以你应该这样称呼它:

$planetData = $this->generate_planet_data($this->request->data['Game']['id']);

如评论中所述,此逻辑可能属于 Planet 模型。如果你把它移到那里,你就可以通过你原来的方式访问它。

于 2012-10-18T14:11:34.560 回答