PHP ActiveRecord如何检查与数据库的连接是否成功? [英] PHP ActiveRecord how to check if connection to database is successful?

问题描述

执行此操作后如何检查初始化是否成功?

How do I check if the initialisation was successful after I do this?

ActiveRecord\Config::initialize(function($cfg){
    $cfg->set_model_directory('models');
    $cfg->set_connections(array(
        'development' => "mysql://root:root@localhost/blog"
        ));  
});

然后我继续做类似的事情:

And then I go onto doing something like:

$posts = Post::all();

在执行上述操作之前，我想检查初始化是否成功.

Just before performing the above I'd like to check if the initialization was successful.

使用 PDO对象，我可以这样做:

if $con ? /*execute query*/ : /*failed to connect*/

如何通过ActiveRecord获得相同的保证?

How could I achieve the same assurance with ActiveRecord?

推荐答案

您可以从您拥有的某个实例中检查连接(例如，您已将某些模型实例化为$model)，如下所示:

You can either check the connection from some instance you have (lets say you have got some model instantiated as $model), like so:

$model->connection();

您可能可以通过调用连接类来静态完成

You can probably do it statically, by calling the connection class

\Activerecord\Connection::instance();

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