[ADD] BASE: Add field filtered employees to announcements

base/models.py

@@ -174,7 +174,9 @@ class JobRole(HorillaModel):
     job_position_id = models.ForeignKey(
         JobPosition, on_delete=models.PROTECT, verbose_name=_("Job Position")
     )
-    job_role = models.CharField(max_length=50, blank=False, null=True)
+    job_role = models.CharField(
+        max_length=50, blank=False, null=True, verbose_name=_("Job Role")
+    )
     company_id = models.ManyToManyField(Company, blank=True, verbose_name=_("Company"))
 
     objects = HorillaCompanyManager("job_position_id__department_id__company_id")
@@ -1490,6 +1492,8 @@ class Announcement(HorillaModel):
 
     from employee.models import Employee
 
+    model_employee = Employee
+
     title = models.CharField(max_length=100)
     description = models.TextField(null=True)
     attachments = models.ManyToManyField(
@@ -1507,6 +1511,9 @@ class Announcement(HorillaModel):
         related_name="announcement",
     )
     disable_comments = models.BooleanField(default=False)
+    filtered_employees = models.ManyToManyField(
+        Employee, related_name="announcement_filtered_employees", editable=False
+    )
     objects = HorillaCompanyManager(related_company_field="company_id")
 
     def get_views(self):

base/signals.py

@@ -1,11 +1,11 @@
 from datetime import datetime
 
 from django.apps import apps
-from django.db.models import Max
-from django.db.models.signals import post_migrate, post_save
+from django.db.models import Max, Q
+from django.db.models.signals import m2m_changed, post_migrate, post_save
 from django.dispatch import receiver
 
-from base.models import PenaltyAccounts
+from base.models import Announcement, PenaltyAccounts
 from horilla.methods import get_horilla_model_class
 
 
@@ -80,3 +80,23 @@ def clean_work_records(sender, **kwargs):
             .exclude(id=record["latest_id"])
             .delete()[0]
         )
+
+
+@receiver(m2m_changed, sender=Announcement.employees.through)
+def filtered_employees(sender, instance, action, **kwargs):
+    """
+    filtered employees
+    """
+    if action not in ["post_add", "post_remove", "post_clear"]:
+        return  # Only run after M2M changes
+    employee_ids = list(instance.employees.values_list("id", flat=True))
+    department_ids = list(instance.department.values_list("id", flat=True))
+    job_position_ids = list(instance.job_position.values_list("id", flat=True))
+
+    employees = instance.model_employee.objects.filter(
+        Q(id__in=employee_ids)
+        | Q(employee_work_info__department_id__in=department_ids)
+        | Q(employee_work_info__job_position_id__in=job_position_ids)
+    )
+
+    instance.filtered_employees.set(employees)