общий код

app/Models/BankTask.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class BankTask extends Model
+{
+    use HasFactory;
+
+    protected $guarded = [
+        'user_id',
+    ];
+
+    public function user()
+    {
+        return $this->belongsTo(User::class);
+    }
+
+    public function subject()
+    {
+        return $this->belongsTo(Subject::class);
+    }
+
+    public function theme()
+    {
+        return $this->belongsTo(Theme::class);
+    }
+
+}

app/Models/BankTaskFile.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class BankTaskFile extends Model
+{
+    use HasFactory;
+    protected $table = 'bank_tasks_files';
+    protected $fillable = ['name', 'type', 'extension', 'url', 'banktask_id'];
+}

app/Models/HeadTeacher.php

@@ -4,13 +4,12 @@ namespace App\Models;
 
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
-use Illuminate\Support\Facades\Validator;
 
 class HeadTeacher extends Model
 {
     use HasFactory;
 
-    protected $fillable = [
+    protected $guarded = [
         'user_id',
     ];
 

app/Models/Parentt.php

@@ -10,7 +10,7 @@ class Parentt extends Model
 {
     use HasFactory;
 
-    protected $fillable = [
+    protected $guarded = [
         'user_id',
     ];
 

app/Models/SchoolClass.php

@@ -12,12 +12,11 @@ class SchoolClass extends Model
     protected $fillable = [
         'number',
         'letter',
-        'count_students',
         'profile',
     ];
 
-    public function teacher()
+    public function students()
     {
-        return $this->belongsTo(Teacher::class, 'classroom_teacher');
+        return $this->hasMany(Student::class);
     }
 }

app/Models/Student.php

@@ -10,7 +10,14 @@ class Student extends Model
 {
     use HasFactory;
 
-    protected $fillable = [
+    protected $guarded = [
         'user_id',
+        'updated_at',
     ];
+
+    public function schoolClass()
+    {
+        return $this->belongsTo(SchoolClass::class, 'class_id');
+    }
+
 }

app/Models/Subject.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Subject extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'name',
+    ];
+
+    public function banktasks()
+    {
+        return $this->hasMany(BankTask::class);
+    }
+}

app/Models/Teacher.php

@@ -10,7 +10,7 @@ class Teacher extends Model
 {
     use HasFactory;
 
-    protected $fillable = [
+    protected $guarded = [
         'user_id',
     ];
 
@@ -18,4 +18,5 @@ class Teacher extends Model
     {
         return $this->hasOne(SchoolClass::class, 'classroom_teacher');
     }
+
 }

app/Models/Theme.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+
+class Theme extends Model
+{
+    use HasFactory;
+
+    protected $fillable = [
+        'name',
+        'variant'
+    ];
+
+    public function banktaks()
+    {
+        return $this->hasMany(BankTask::class);
+    }
+}