quiz.php

<?php

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

class CreateQuizModuleTables extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        // Quizzes
        Schema::create('quiz_module_quizzes', function (Blueprint $table) {
            $table->id();
            $table->string('title');
            $table->unsignedInteger('try_score')->nullable();
            $table->unsignedInteger('correct_score')->nullable();
            $table->json('data')->nullable();
            $table->timestamps();
        });
        Schema::create('quiz_module_questions', function (Blueprint $table) {
            $table->id('id');
            $table->foreignId('quiz_module_quiz_id');
            $table->string('text');
            $table->string('type');
            $table->boolean('visible')->default(false);
            $table->timestamps();

            $table->foreign('quiz_module_quiz_id')->references('id')->on('quiz_module_quizzes')->onDelete('cascade');
        });
        Schema::create('quiz_module_question_answers', function (Blueprint $table) {
            $table->increments('id');
            $table->foreignId('quiz_module_question_id');
            $table->string('answer');
            $table->boolean('correct')->default(false);
            $table->timestamps();

            $table->foreign('quiz_module_question_id')->references('id')->on('quiz_module_questions')->onDelete('cascade');
        });

        // User attempts
        Schema::create('quiz_module_user_attempts', function (Blueprint $table) {
            $table->increments('id');
            $table->foreignId('user_id');
            $table->foreignId('quiz_module_quiz_id');
            $table->unsignedInteger('total_score')->nullable();
            $table->timestamps();

            $table->foreign('user_id')->references('id')->on('users');
            $table->foreign('quiz_module_quiz_id')->references('id')->on('quiz_module_quizzes');
        });
        Schema::create('quiz_module_user_attempt_answers', function (Blueprint $table) {
            $table->increments('id');
            $table->foreignId('quiz_module_question_id');
            $table->foreignId('quiz_module_user_attempt_id');
            $table->foreignId('quiz_module_question_answer_id');
            $table->timestamps();

            $table->foreign('quiz_module_question_id')->references('id')->on('quiz_module_questions');
            $table->foreign('quiz_module_question_answer_id')->references('id')->on('quiz_module_question_answers');
            $table->foreign('quiz_module_user_attempt_id')->references('id')->on('quiz_module_user_attempts');
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('quiz_module_quizzes');
        Schema::dropIfExists('quiz_module_questions');
        Schema::dropIfExists('quiz_module_question_answers');
        Schema::dropIfExists('quiz_module_user_attempts');
        Schema::dropIfExists('quiz_module_user_attempt_answers');
    }
}