some changes

apps/herd/migrations/0011_rancher_herd_code.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.0 on 2025-08-06 07:25
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('herd', '0010_rancher_without_herd'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='rancher',
+            name='herd_code',
+            field=models.CharField(max_length=100, null=True),
+        ),
+    ]

apps/herd/migrations/0012_alter_rancher_national_code_and_more.py

@@ -0,0 +1,23 @@
+# Generated by Django 5.0 on 2025-08-06 07:35
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('herd', '0011_rancher_herd_code'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='rancher',
+            name='national_code',
+            field=models.CharField(max_length=50, null=True),
+        ),
+        migrations.AlterField(
+            model_name='rancher',
+            name='nationality',
+            field=models.CharField(max_length=50, null=True),
+        ),
+    ]

apps/herd/migrations/0013_alter_herd_latitude_alter_herd_longitude.py

@@ -0,0 +1,23 @@
+# Generated by Django 5.0 on 2025-08-06 07:49
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('herd', '0012_alter_rancher_national_code_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='herd',
+            name='latitude',
+            field=models.DecimalField(decimal_places=6, max_digits=10, null=True),
+        ),
+        migrations.AlterField(
+            model_name='herd',
+            name='longitude',
+            field=models.DecimalField(decimal_places=6, max_digits=10, null=True),
+        ),
+    ]

apps/herd/migrations/0014_alter_herd_latitude_alter_herd_longitude.py

@@ -0,0 +1,23 @@
+# Generated by Django 5.0 on 2025-08-06 07:51
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('herd', '0013_alter_herd_latitude_alter_herd_longitude'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='herd',
+            name='latitude',
+            field=models.FloatField(default=0),
+        ),
+        migrations.AlterField(
+            model_name='herd',
+            name='longitude',
+            field=models.FloatField(default=0),
+        ),
+    ]

apps/herd/migrations/0015_alter_herd_postal.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.0 on 2025-08-06 07:55
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('herd', '0014_alter_herd_latitude_alter_herd_longitude'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='herd',
+            name='postal',
+            field=models.CharField(help_text='herd postal code', max_length=20, null=True),
+        ),
+    ]

apps/herd/models.py

@@ -42,7 +42,7 @@ class Herd(BaseModel):
         null=True
     )
     postal = models.CharField(
-        max_length=10,
+        max_length=20,
         help_text="herd postal code", null=True
     )
     institution = models.CharField(
@@ -56,8 +56,8 @@ class Herd(BaseModel):
         related_name="herd_contractor",
         null=True
     )
-    latitude = models.DecimalField(max_digits=22, decimal_places=16, null=True)
-    longitude = models.DecimalField(max_digits=22, decimal_places=16, null=True)
+    latitude = models.FloatField(default=0)
+    longitude = models.FloatField(default=0)
     unit_unique_id = models.CharField(max_length=20, null=True)
     activity_types = (
         ("I", "Industrial"),
@@ -82,12 +82,13 @@ class Herd(BaseModel):
 
 class Rancher(BaseModel):
     ranching_farm = models.CharField(max_length=150, null=True)
+    herd_code = models.CharField(max_length=100, null=True)
     first_name = models.CharField(max_length=150, null=True)
     last_name = models.CharField(max_length=150, null=True)
     mobile = models.CharField(max_length=25, null=True)
-    national_code = models.CharField(max_length=20, null=True)
+    national_code = models.CharField(max_length=50, null=True)
     birthdate = models.DateTimeField(null=True)
-    nationality = models.CharField(max_length=20, null=True)
+    nationality = models.CharField(max_length=50, null=True)
     address = models.TextField(blank=True)
     province = models.ForeignKey(
         auth_models.Province,