Persons constraint

project/main/migrations/0004_alter_person_address_alter_person_city_and_more.py

@@ -0,0 +1,46 @@
+# Generated by Django 5.0.4 on 2024-05-16 05:33
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("main", "0003_person"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="person",
+            name="address",
+            field=models.CharField(
+                max_length=100,
+                validators=[
+                    django.core.validators.MinLengthValidator(2),
+                    django.core.validators.MaxLengthValidator(100),
+                ],
+            ),
+        ),
+        migrations.AlterField(
+            model_name="person",
+            name="city",
+            field=models.CharField(
+                max_length=100,
+                validators=[
+                    django.core.validators.MinLengthValidator(2),
+                    django.core.validators.MaxLengthValidator(100),
+                ],
+            ),
+        ),
+        migrations.AlterField(
+            model_name="person",
+            name="name",
+            field=models.CharField(
+                max_length=100,
+                validators=[
+                    django.core.validators.MinLengthValidator(2),
+                    django.core.validators.MaxLengthValidator(100),
+                ],
+            ),
+        ),
+    ]

project/main/models/person.py

@@ -1,10 +1,26 @@
+from django.core.validators import MaxLengthValidator, MinLengthValidator
 from django.db import models
 
 
 class Person(models.Model):
-    name = models.CharField(max_length=100)
-    address = models.CharField(max_length=100)
-    city = models.CharField(max_length=100)
+    name = models.CharField(
+        max_length=100,
+        blank=False,
+        null=False,
+        validators=[MinLengthValidator(2), MaxLengthValidator(100)],
+    )
+    address = models.CharField(
+        max_length=100,
+        blank=False,
+        null=False,
+        validators=[MinLengthValidator(2), MaxLengthValidator(100)],
+    )
+    city = models.CharField(
+        max_length=100,
+        blank=False,
+        null=False,
+        validators=[MinLengthValidator(2), MaxLengthValidator(100)],
+    )
 
     class Meta:
         db_table = "persons"