create initial models and mobile test for mojtaba eshaghi

apps/herd/admin.py

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+from django.contrib import admin
+
+# Register your models here.

apps/herd/apps.py

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+from django.apps import AppConfig
+
+
+class HerdAppConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'apps.herd'

apps/herd/management/commands/command.py

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+# Your custom management commands go here.

apps/herd/migrations/0001_initial.py

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+# Generated by Django 4.2.20 on 2025-05-05 11:54
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('authentication', '0007_user_ownership'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Herd',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('create_date', models.DateTimeField(auto_now_add=True)),
+                ('modify_date', models.DateTimeField(auto_now=True)),
+                ('trash', models.BooleanField(default=False)),
+                ('name', models.CharField(max_length=50)),
+                ('photo', models.CharField(max_length=50, null=True)),
+                ('code', models.CharField(max_length=20)),
+                ('postal', models.CharField(help_text='herd postal code', max_length=10, null=True)),
+                ('institution', models.CharField(help_text='herd institution code', max_length=20, null=True)),
+                ('epidemiologic', models.CharField(max_length=18, null=True)),
+                ('latitude', models.DecimalField(decimal_places=16, max_digits=22, null=True)),
+                ('longitude', models.DecimalField(decimal_places=16, max_digits=22, null=True)),
+                ('unit_unique_id', models.CharField(max_length=20, null=True)),
+                ('activity', models.CharField(choices=[('I', 'Industrial'), ('V', 'Village'), ('N', 'Nomadic')], max_length=1, null=True)),
+                ('activity_state', models.BooleanField(default=False)),
+                ('operating_license_state', models.BooleanField(default=False)),
+                ('capacity', models.IntegerField(default=0)),
+                ('contractor', models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='herd_contractor', to='authentication.organization')),
+                ('created_by', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='%(class)s_createdby', to=settings.AUTH_USER_MODEL)),
+                ('modified_by', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='%(class)s_modifiedby', to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+    ]

apps/herd/models.py

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+from apps.core.models import BaseModel
+from apps.authentication import models as auth_models
+from django.db import models
+
+
+class Herd(BaseModel):
+    name = models.CharField(max_length=50)
+    photo = models.CharField(max_length=50, null=True)
+    code = models.CharField(max_length=20)
+    postal = models.CharField(
+        max_length=10,
+        help_text="herd postal code", null=True
+    )
+    institution = models.CharField(
+        max_length=20,
+        help_text="herd institution code", null=True
+    )
+    epidemiologic = models.CharField(max_length=18, null=True)  # noqa
+    contractor = models.ForeignKey(
+        auth_models.Organization,
+        on_delete=models.CASCADE,
+        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)
+    unit_unique_id = models.CharField(max_length=20, null=True)
+    activity_types = (
+        ("I", "Industrial"),
+        ("V", "Village"),
+        ("N", "Nomadic")
+    )
+    activity = models.CharField(
+        choices=activity_types,
+        max_length=1,
+        null=True
+    )
+    activity_state = models.BooleanField(default=False)
+    operating_license_state = models.BooleanField(default=False)
+    capacity = models.IntegerField(default=0)
+
+    def __str__(self):
+        return f'{self.name}-{self.code}'
+
+    def save(self, *args, **kwargs):
+        super(Herd, self).save(*args, **kwargs)

apps/herd/permissions.py

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+from rest_framework import permissions
+
+
+# example Code
+class AuthorAllStaffAllButEditOrReadOnly(permissions.BasePermission):
+    edit_methods = ("PUT", "PATCH")
+
+    def has_permission(self, request, view):
+        if request.user.is_authenticated:
+            return True
+
+    def has_object_permission(self, request, view, obj):
+        if request.user.is_superuser:
+            return True
+
+        if request.method in permissions.SAFE_METHODS:
+            return True
+
+        if obj.author == request.user:
+            return True
+
+        if request.user.is_staff and request.method not in self.edit_methods:
+            return True
+
+        return False

apps/herd/services.py

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+# Your services go here

apps/herd/urls.py

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+# Your urls go here