php - 计算关系表条目

Question

代码:

$criteria = new CDbCriteria;
$criteria->select='id, name, count(events.id) AS event_relational';
$criteria->with=array('events');
$model = Profiles::model()->findAll($criteria);

响应:

[{"id":"1","name":"Profile 1","event_relational":"0"}]

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代码 2:

$criteria = new CDbCriteria;
$criteria->select='id, name';
$criteria->with=array('events');
$model = Profiles::model()->findAll($criteria);

响应 2:

[{"id":"1","name":"Profile 1","event_relational":null},{"id":"2","name":"Profile 2","event_relational":null}...]

---

---

当我使用 COUNT 时，查询在第一个 MySQL 条目中停止。 我希望代码返回所有条目并检查是否有关系事件。

我想要的响应:

[{"id":"1","name":"Profile 1","event_relational":"0"},{"id":"2","name":"Profile 2","event_relational":"1"}...]

Answer 1

为此，您需要按 profile.id 进行分组:

$criteria = new CDbCriteria;
$criteria->select='id, name, count(events.id) AS event_relational';
$criteria->with=array('events');
$criteria->group='t.id';
$model = Profiles::model()->findAll($criteria);