Zend Framework 1. 获取评论

Question

我无法创建一个合适的查询来 select 与一个特定图像相关的所有评论并获取这些评论的作者。我想创建一个类似这样的查询：

select a comment where comment_id == image_id && user_id(table comments) == user_id(table users)

这是 MySQL 部分：

Table 'comments'
id | comment | user_id | image_id |
1  | test 1  |    1    |     1    |
2  | test 2  |    1    |     2    |
3  | test 3  |    2    |     1    |


Table 'users'
id |  name  |
1  |  test1 |
2  |  test2 |


Table 'images'
id |    img     |
1  |  test.jpg  |
2  |  test.jpg  |
3  |  test.jpg  |
4  |  test.jpg  |

控制器部分：

$imageId = $filter->filter ($request->getParam('id'));
$this->view->imageId = $filter->filter ($request->getParam('id'));
$this->view->imageChosen = $images->fetchRow($images->select()->where('id = ?', $imageId));

$users = new Users();
$userChosen = new Users();
$comments = new Comments();
$this->view->comments = $comments->fetchAll();

$this->view->userChosen = $users->fetchRow($users->select()->where('id = ?', $this->view->imageChosen->author_id));
$this->view->commentsChosen = $comments->fetchAll($comments->select()->where('id = ?', $imageId));

查看部分：

for ($i=0; $i < count($this->commentsChosen); $i++) {
    echo $this->commentChosen[$i]->comment;
}

现在我只收到第一条评论。我的意思是我需要属于每张图片的所有评论以及作者信息。感谢您的帮助！

Answer 1

我已经成功获取了属于每张图片的所有评论。

控制器：

$this->view->commentsChosen = $comments->fetchAll($comments->select()->where('image_id = ?', $this->view->imageChosen->id));

查看：

for ($i=0; $i<count($this->commentsChosen); $i++) {
    echo $this->commentsChosen[$i]->comment;
    //Have 'user_id' only
    echo $this->commentsChosen[$i]->user_id;
}

但是，我仍然无法获取作者的详细信息。

Answer 2

如您所说，您可以通过查询获取图像信息，我将对其进行扩展以获取用户信息：

$select = $comments->select()->setIntegrityCheck(false)
                   ->from('comments')
                   ->joinInner('users', 'users.id = comments.user_id')
                   ->where('comments.image_id = ?', $this->view->imageChosen->id);

$this->view->commentsChosen = $comments->fetchAll($select);

生成的查询将是：

SELECT comments.* users.* FROM comments
INNER JOIN users ON users.id = comments.user_id
WHERE comments.image_id = [Your_id_here]

希望对您有所帮助！

Zend Framework 1. 获取评论

Zend Framework 1. Fetch comments

php

mysql

select

zend-framework

fetch