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apps/customer/models.py

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+from django.db import models
+from utils.base_model import BaseModel
+from apps.workspace.models import City as CityModel, Workspace as WorkspaceModel
+from apps.cuser.models import CuserRole as CuserRoleModel
+from django.core.exceptions import ValidationError
+# Create your models here.
+
+
+class ShiveAshenaei(BaseModel):
+    name = models.CharField(max_length=15, null=False, blank=False)
+    sys_ws = models.ForeignKey(WorkspaceModel, on_delete=models.CASCADE, null=False, blank=False)
+
+    def __str__(self):
+        return str(self.name)
+
+
+class ResponsibleGroup(BaseModel):
+    name = models.CharField(max_length=20, null=False, blank=False)
+    sys_ws = models.ForeignKey(WorkspaceModel, on_delete=models.CASCADE, null=False, blank=False)
+
+    def __str__(self):
+        return str(self.name)
+
+
+class CustomerResponsible(BaseModel):
+    responsible_group = models.ForeignKey(ResponsibleGroup, on_delete=models.CASCADE, null=False, blank=False, related_name='customer_responsible')
+    cuser_role = models.ForeignKey(CuserRoleModel, on_delete=models.CASCADE, null=False, blank=False)
+    sys_ws = models.ForeignKey(WorkspaceModel, on_delete=models.CASCADE, null=False, blank=False)
+
+    def __str__(self):
+        return str(self.responsible_group)
+
+
+class CustomerGroupType(BaseModel):
+    name = models.CharField(max_length=10, null=False, blank=False)
+    sys_ws = models.ForeignKey(WorkspaceModel, on_delete=models.CASCADE, null=False, blank=False)
+
+    def __str__(self):
+        return str(self.name)
+
+
+class CustomerGroup(BaseModel):
+    name = models.CharField(max_length=15, null=False, blank=False)
+    group_type = models.ForeignKey(CustomerGroupType, on_delete=models.SET_NULL, null=True, blank=True)
+    sys_ws = models.ForeignKey(WorkspaceModel, on_delete=models.CASCADE, null=False, blank=False)
+
+    def __str__(self):
+        return str(self.name)
+
+
+class Customer(BaseModel):
+    name_family = models.CharField(max_length=25, null=False, blank=False)
+    mobile = models.PositiveBigIntegerField(null=True, blank=True)
+    phone = models.PositiveBigIntegerField(null=True, blank=True)
+    address = models.CharField(max_length=100, null=True, blank=True)
+    city = models.ForeignKey(CityModel, on_delete=models.SET_NULL, null=True, blank=True)
+    shive_ashenaei = models.ForeignKey(ShiveAshenaei, on_delete=models.SET_NULL, null=True, blank=True)
+    responsible_group = models.ForeignKey(ResponsibleGroup, on_delete=models.SET_NULL, null=True, blank=True)
+    cuser_role = models.ForeignKey(CuserRoleModel, on_delete=models.SET_NULL, null=True, blank=True)
+    sys_ws = models.ForeignKey(WorkspaceModel, on_delete=models.CASCADE, null=False, blank=False)
+
+    class Meta:
+        ordering = ['-created_at']
+
+    def __str__(self):
+        return str(self.name_family)
+
+    def clean(self):
+        if self.cuser_role and not self.cuser_role.role_type.role_name_en == 'workspace_customer':
+            raise ValidationError("cuser_role type must be customer")
+
+
+class CustomerNote(BaseModel):
+    customer = models.ForeignKey(Customer, on_delete=models.CASCADE, null=False, blank=False)
+    cuser_role = models.ForeignKey(CuserRoleModel, on_delete=models.CASCADE, null=False, blank=False)
+    desc = models.CharField(max_length=200, null=False, blank=False)
+    sys_ws = models.ForeignKey(WorkspaceModel, on_delete=models.CASCADE, null=False, blank=False)
+
+    class Meta:
+        ordering = ['-created_at']
+
+    def __str__(self):
+        return str(self.customer.name_family)