php - 我无法运行 php artisan migrate

Question

我正在尝试运行 php artisan migrate 命令，但我没有得到它。我收到这个错误

SQLSTATE[42601]: Syntax error: 7 ERROR: zero-length delimited identifier at or near """"\n LINE 1: set search_path to ""\n ^ (SQL: select count(*) as aggregate from "categoria" where "deleted_at" is null and "categoria"."deleted_at" is null).

我的类(class)迁移分类:

<?php

use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class CreateCategoriasTable extends Migration
{
    /**
    * Run the migrations.
    *
    * @return void
    */
    public function up()
    {
        Schema::create('categoria', function (Blueprint $table) {
            $table->increments('id');
            $table->string('nome', 60);
            $table->timestamps();
            $table->softDeletes();
        });
    }

    /**
    * Reverse the migrations.
    *
    * @return void
    */
    public function down()
    {
        Schema::dropIfExists('categoria');
    }
}

这个地方发生在我运行 php artisan migrate 命令时。在vagrant中出现这个错误

vagrant@homestead:~/code/controle-interno$ php artisan migrate
**************************************
*     Application In Production!     *
**************************************

 Do you really wish to run this command? (yes/no) [no]:
 > yes


In Connection.php line 664:

  SQLSTATE[42601]: Syntax error: 7 ERROR:  zero-length delimited identifier at or near """"
  LINE 1: set search_path to ""
                             ^ (SQL: select * from information_schema.tables where table_schema = public and table_name = migrations)


In PDOStatement.php line 143:

  SQLSTATE[42601]: Syntax error: 7 ERROR:  zero-length delimited identifier at or near """"
  LINE 1: set search_path to ""
                             ^


In PDOStatement.php line 141:

  SQLSTATE[42601]: Syntax error: 7 ERROR:  zero-length delimited identifier at or near """"
  LINE 1: set search_path to ""
                             ^

我的设置是 Laravel 最新的 homestead

• Laravel 5.5
• Postgres 10.4

如有任何帮助，我将不胜感激!

Answer 1

我能够通过更改 /vendor/laravel 的 configureSchema ($connection, $config) 方法的 $schema 变量来解决我的问题/framework/src/Illuminate/Database/Connectors/PostgresConnector.php 类到我创建的模式。

之前

/**
 * Set the schema on the connection.
 *
 * @param  \PDO  $connection
 * @param  array  $config
 * @return void
 */
protected function configureSchema($connection, $config)
{
    if (isset($config['schema'])) {
        $schema = $this->formatSchema($config['schema']);

        $connection->prepare("set search_path to {$schema}")->execute();
    }
}

之后

/**
 * Set the schema on the connection.
 *
 * @param  \PDO  $connection
 * @param  array  $config
 * @return void
 */
protected function configureSchema($connection, $config)
{
    if (isset($config['schema'])) {
        // $schema = $this->formatSchema($config['schema']);
        $schema = 'controle_interno';

        $connection->prepare("set search_path to {$schema}")->execute();
    }
}

我意识到调试堆栈跟踪的问题并意识到由于某种原因 $schema 变量变空了。

如果有人简洁地解释了为什么会发生此错误，我会将其标记为答案。