app/Models/Lesson.php

@@ -6,6 +6,7 @@ use Illuminate\Contracts\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\BelongsToMany;
 use Illuminate\Database\Eloquent\Relations\HasMany;
 
 class Lesson extends Model
@@ -42,6 +43,11 @@ class Lesson extends Model
         return $this->belongsTo(Subject::class);
     }
 
+    public function students(): BelongsToMany
+    {
+        return $this->belongsToMany(Student::class);
+    }
+
     public function scopeFilter(Builder $query): void
     {
         $subject_id = request('subject_id');

app/Models/Score.php

@@ -1,17 +0,0 @@
-<?php
-
-namespace App\Models;
-
-use Illuminate\Database\Eloquent\Factories\HasFactory;
-use Illuminate\Database\Eloquent\Relations\BelongsTo;
-use Illuminate\Database\Eloquent\Relations\Pivot;
-
-class Score extends Pivot
-{
-    use HasFactory;
-
-    public function lesson(): BelongsTo
-    {
-        return $this->belongsTo(Lesson::class);
-    }
-}

app/Models/Student.php

@@ -34,7 +34,12 @@ class Student extends Model
 
     public function subjects(): BelongsToMany
     {
-        return $this->belongsToMany(Subject::class)->withPivot('mark')->using(Score::class);
+        return $this->belongsToMany(Subject::class);
+    }
+
+    public function lessons(): BelongsToMany
+    {
+        return $this->belongsToMany(Lesson::class)->withPivot('score');
     }
 
     public function scopeFilter(Builder $query): void

database/migrations/2024_05_07_125455_add_foreign_key_to_student_subject.php

@@ -1,28 +0,0 @@
-<?php
-
-use Illuminate\Database\Migrations\Migration;
-use Illuminate\Database\Schema\Blueprint;
-use Illuminate\Support\Facades\Schema;
-
-return new class extends Migration
-{
-    /**
-     * Run the migrations.
-     */
-    public function up(): void
-    {
-        Schema::table('student_subject', function (Blueprint $table) {
-            $table->foreignId('lesson_id')->nullable()->constrained('lessons')->onDelete('cascade');
-        });
-    }
-
-    /**
-     * Reverse the migrations.
-     */
-    public function down(): void
-    {
-        Schema::table('student_subject', function (Blueprint $table) {
-            $table->dropColumn('lesson_id');
-        });
-    }
-};

database/migrations/2024_05_13_102702_create_lesson_student_table.php

@@ -11,11 +11,11 @@ return new class extends Migration
      */
     public function up(): void
     {
-        Schema::create('student_subject', function (Blueprint $table) {
+        Schema::create('lesson_student', function (Blueprint $table) {
             $table->id();
-            $table->foreignId('student_id')->constrained('students')->onDelete('cascade');
-            $table->foreignId('subject_id')->constrained('subjects')->onDelete('cascade');
-            $table->unsignedInteger('mark');
+            $table->foreignId('lesson_id')->constrained('lessons')->onDelete('cascade');
+            $table->foreignId('student_id')->constrained('lessons')->onDelete('cascade');
+            $table->unsignedInteger('score');
             $table->timestamps();
         });
     }
@@ -25,6 +25,6 @@ return new class extends Migration
      */
     public function down(): void
     {
-        Schema::dropIfExists('student_subject');
+        Schema::dropIfExists('lesson_student');
     }
 };