discount percentage validation added

apps/course/migrations/0005_alter_course_discount_percentage.py

@@ -0,0 +1,19 @@
+# Generated by Django 5.2.12 on 2026-05-04 09:11
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('course', '0004_alter_lessoncompletion_options_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='course',
+            name='discount_percentage',
+            field=models.PositiveIntegerField(default=0, validators=[django.core.validators.MinValueValidator(0), django.core.validators.MaxValueValidator(100)], verbose_name='Discount Percentage'),
+        ),
+    ]

apps/course/models/course.py

@@ -8,6 +8,7 @@ from django.utils.translation import gettext_lazy as _
 from apps.account.models import ProfessorUser
 from utils.schema import default_timing
 from utils import generate_slug_for_model
+from django.core.validators import MinValueValidator, MaxValueValidator
 
 
 
@@ -95,7 +96,7 @@ class Course(models.Model):
     status = models.CharField(max_length=15, choices=StatusChoices.choices, default=StatusChoices.INACTIVE, verbose_name=_('Course Status'))
     is_free = models.BooleanField(default=True, verbose_name=_('Is Free'))
     price = models.DecimalField(max_digits=10, decimal_places=2, default=0.00, verbose_name=_('Course Price'))
-    discount_percentage = models.PositiveIntegerField(default=0, verbose_name=_('Discount Percentage'))
+    discount_percentage = models.PositiveIntegerField(default=0, validators=[MinValueValidator(0), MaxValueValidator(100)], verbose_name=_('Discount Percentage'))
     final_price = models.DecimalField(
         verbose_name=_('Course Final Price'), decimal_places=2, max_digits=10, default=0.00, blank=True,
         help_text=_('This field is automatically calculated based on the discount percentage.')