Added Base spec for devices

care/emr/models/device.py

@@ -0,0 +1,60 @@
+from django.contrib.postgres.fields import ArrayField
+from django.db import models
+
+from care.emr.models import EMRBaseModel
+
+
+class Device(EMRBaseModel):
+    # Device Data
+    identifier = models.CharField(max_length=1024, null=True, blank=True)
+    status = models.CharField(max_length=14)
+    availability_status = models.CharField(max_length=14)
+    manufacturer = models.CharField(max_length=1024)
+    manufacture_date = models.DateTimeField(null=True, blank=True)
+    expiration_date = models.DateTimeField(null=True, blank=True)
+    lot_number = models.CharField(max_length=1024, null=True, blank=True)
+    serial_number = models.CharField(max_length=1024, null=True, blank=True)
+    registered_name = models.CharField(max_length=1024, null=True, blank=True)
+    user_friendly_name = models.CharField(max_length=1024, null=True, blank=True)
+    model_number = models.CharField(max_length=1024, null=True, blank=True)
+    part_number = models.CharField(max_length=1024, null=True, blank=True)
+    contact = models.JSONField(default=dict)
+    care_type = models.CharField(max_length=1024, null=True, blank=True)
+
+    # Relations
+    facility = models.ForeignKey("facility.Facility", on_delete=models.CASCADE)
+    managing_organization = models.ForeignKey(
+        "emr.FacilityOrganization", on_delete=models.SET_NULL, null=True, blank=True
+    )
+    current_location = models.ForeignKey(
+        "emr.FacilityLocation", on_delete=models.SET_NULL, null=True, blank=True
+    )
+    current_encounter = models.ForeignKey(
+        "emr.Encounter", on_delete=models.SET_NULL, null=True, blank=True
+    )
+
+    # metadata
+    facility_organization_cache = ArrayField(models.IntegerField(), default=list)
+
+
+class DeviceEncounterHistory(EMRBaseModel):
+    device = models.ForeignKey("emr.Device", on_delete=models.CASCADE)
+    encounter = models.ForeignKey("emr.Encounter", on_delete=models.CASCADE)
+    start = models.DateTimeField()
+    end = models.DateTimeField(null=True, blank=True)
+
+
+class DeviceLocationHistory(EMRBaseModel):
+    device = models.ForeignKey("emr.Device", on_delete=models.CASCADE)
+    location = models.ForeignKey("emr.FacilityLocation", on_delete=models.CASCADE)
+    start = models.DateTimeField()
+    end = models.DateTimeField(null=True, blank=True)
+
+
+class DeviceServiceHistory(EMRBaseModel):
+    device = models.ForeignKey(
+        Device, on_delete=models.PROTECT, null=False, blank=False
+    )
+    serviced_on = models.DateField(default=None, null=True, blank=False)
+    note = models.TextField(default="", null=True, blank=True)
+    edit_history = models.JSONField(default=list)

care/emr/registries/device_type/device_registry.py

@@ -0,0 +1,43 @@
+class DeviceTypeBase:
+    def handle_create(self, request_data, obj):
+        """
+        Handle Creates, the original source request along with the base object created is passed along.
+        Update the obj as needed and create any extra metadata needed. This method is called within a transaction
+        """
+        return obj
+
+    def handle_update(self, request_data, obj):
+        """
+        Handle Updates, the original source request along with the base object updated is passed along.
+        Update the obj as needed and create any extra metadata needed. This method is called within a transaction
+        """
+        return obj
+
+    def handle_delete(self, obj):
+        """
+        Handle Deletes, the object to be deleted is passed along.
+        Perform validation or any other changes required here
+        """
+        return obj
+
+    def list(self, obj):
+        """
+        Return Extra metadata for the given obj for lists, N+1 queries is okay, caching is recommended for performance
+        """
+        return {}
+
+    def retrieve(self, obj):
+        """
+        Return Extra metadata for the given obj during retrieves
+        """
+        return {}
+
+
+class InternalQuestionnaireRegistry:
+    _device_types = {}
+
+    @classmethod
+    def register(cls, device_type, device_class) -> None:
+        if not issubclass(device_class, DeviceTypeBase):
+            raise ValueError("The provided class is not a subclass of DeviceTypeBase")
+        cls._device_types[device_type] = device_class