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Filename : 2023_10_18_110722_laratrust_setup_tables.php
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<?php

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

class LaratrustSetupTables extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        // Create table for storing roles
        if(!Schema::hasTable('roles'))
        {
            Schema::create('roles', function (Blueprint $table) {
                $table->bigIncrements('id');
                $table->string('name');
                $table->string('display_name')->nullable();
                $table->string('description')->nullable();
                $table->string('guard_name')->default('web');
                $table->string('module')->nullable()->default('Base');
                $table->integer('created_by')->nullable()->default(0);
                $table->timestamps();
            });
        }

        // Create table for storing permissions
        if(!Schema::hasTable('permissions'))
        {
            Schema::create('permissions', function (Blueprint $table) {
                $table->bigIncrements('id');
                $table->string('name')->unique();
                $table->string('display_name')->nullable();
                $table->string('description')->nullable();
                $table->string('guard_name')->default('web');
                $table->string('module')->default('Base');
                $table->integer('created_by')->default(0);
                $table->timestamps();
            });
        }

        // Create table for associating roles to users and teams (Many To Many Polymorphic)
        if(!Schema::hasTable('role_user'))
        {
            Schema::create('role_user', function (Blueprint $table) {
                $table->unsignedBigInteger('role_id');
                $table->unsignedBigInteger('user_id');
                $table->string('user_type');

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

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

        // Create table for associating permissions to users (Many To Many Polymorphic)
        if(!Schema::hasTable('permission_user'))
        {
            Schema::create('permission_user', function (Blueprint $table) {
                $table->unsignedBigInteger('permission_id');
                $table->unsignedBigInteger('user_id');
                $table->string('user_type');

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

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

        // Create table for associating permissions to roles (Many-to-Many)
        if(!Schema::hasTable('permission_role'))
        {
            Schema::create('permission_role', function (Blueprint $table) {
                $table->unsignedBigInteger('permission_id');
                $table->unsignedBigInteger('role_id');

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

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

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