Laravel空数据库给出SQLSTATE [42S02]错误

Question

我正在尝试将数据库迁移到空数据库，但是当我进行php artisan migrate时出现以下错误：

  [Illuminate\Database\QueryException]
  SQLSTATE[42S02]: Base table or view not found: 1146 Table 'portal-for-fun.permissions' doesn't exist (SQL: select *
   from `permissions`)



  [PDOException]
  SQLSTATE[42S02]: Base table or view not found: 1146 Table 'portal-for-fun.permissions' doesn't exist

所有迁移都可以在这里找到： https : //github.com/cskiwi/portal-for-fun/tree/master/database

但我认为问题出在这里：

<?php

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

class CreateRolesTables extends Migration {
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up() {
        Schema::create('roles', function (Blueprint $table) {
            $table->increments('id');
            $table->string('name');
            $table->string('label')->nullable();
            $table->integer('role_id')->unsigned()->nullable();
            $table->timestamps();

            $table->foreign('role_id')->references('id')->on('roles')->onDelete('cascade');
        });

        Schema::create('permissions', function (Blueprint $table) {
            $table->increments('id');
            $table->string('name');
            $table->string('label')->nullable();
            $table->timestamps();
        });

        Schema::create('permission_role', function (Blueprint $table) {
            $table->integer('permission_id')->unsigned();
            $table->integer('role_id')->unsigned();

            $table->foreign('permission_id')->references('id')->on('permissions')->onDelete('cascade');
            $table->foreign('role_id')->references('id')->on('roles')->onDelete('cascade');

            $table->primary(['permission_id', 'role_id']);
        });


        Schema::create('role_user', function (Blueprint $table) {
            $table->integer('role_id')->unsigned();
            $table->integer('user_id')->unsigned();

            $table->foreign('role_id')->references('id')->on('roles')->onDelete('cascade');
            $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
            $table->primary(['role_id', 'user_id']);
        });

        Schema::create('permission_user', function (Blueprint $table) {
            $table->integer('permission_id')->unsigned();
            $table->integer('user_id')->unsigned();

            $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
            $table->foreign('permission_id')->references('id')->on('permissions')->onDelete('cascade');
            $table->primary(['permission_id', 'user_id']);
        });
    }

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

        Schema::dropIfExists('permissions');
        Schema::dropIfExists('roles');
    }
}

数据库本身仅包含一个空的migration表

Answer 1

在您的项目中创建permission模型。
如果您具有permission模型，请确保permission中的名称不是Permission

Answer 2

我有类似的问题。 尝试对迁移进行分批处理，然后从migrations文件夹中移走其中的一部分（使用permissions表的部分）。 首先，您应该运行migration，它将使用php artisan migrate migration创建permissions表。 然后将创建了permission_role和permission_user表的migrations移回migrations文件夹，然后再次运行php artisan migrate migrations 。

那对我有所帮助，希望它也会对您有所帮助。