Yii2无法连接到postgresql

Question

我在使用yii2和postgresql数据库时遇到此错误。

SQLSTATE[HY000] [2002] No such file or directory 

Caused by: PDOException 

SQLSTATE[HY000] [2002] No such file or directory 

我配置文件主local.php这样的：

<?php 
return [ 
    'components' => [ 
     'db' => [ 
      'class' => 'yii\db\Connection', 
      'dsn' => 'pgsql:host=127.0.0.1;port=5432;dbname=dbname', 
      'username' => 'user', 
      'password' => 'pass', 
      'charset' => 'utf8', 
     ], 
     'mailer' => [ 
      'class' => 'yii\swiftmailer\Mailer', 
      'viewPath' => '@common/mail', 
      // send all mails to a file by default. You have to set 
      // 'useFileTransport' to false and configure a transport 
      // for the mailer to send real emails. 
      'useFileTransport' => true, 
     ], 
    ], 
]; 

顺便说一句，当我用mysql它的工作。

Answer 1

这显然是一个配置问题。

1. 打电话yii2提供并检查是否安装了PDO PostgreSQL的扩展requirements page。
2. 让你的配置正确。 PostgreSQL与MySQL不同。每个数据库群集至少包含一个名为的数据库。数据库至少包含一个名为的模式，该模式又包含表格。

有了这些知识，你的主local.php应该是这样的：

<?php 
return [ 
    'components' => [ 
     'db' => [ 
      'class' => 'yii\db\Connection', 
      'dsn' => 'pgsql:host=localhost;dbname=YOURDATABASE', 
      'username' => 'YOURPOSTGRESUSERNAME', 
      'password' => 'YOURPOSTGRESPASSWORD', 
      'charset' => 'utf8', 
      'schemaMap' => [ 
       'pgsql' => [ 
        'class' => 'yii\db\pgsql\Schema', 
        'defaultSchema' => 'public' //specify your schema here, public is the default schema 
       ] 
      ], // PostgreSQL 
     ], 
     'mailer' => [ 
      'class' => 'yii\swiftmailer\Mailer', 
      'viewPath' => '@common/mail', 
      // send all mails to a file by default. You have to set 
      // 'useFileTransport' to false and configure a transport 
      // for the mailer to send real emails. 
      'useFileTransport' => true, 
     ], 
    ], 
];