fix / add logger fields to db tables

backend/sitemanagement/models.py

@@ -9,6 +9,12 @@ class Multiplexor(models.Model):
     subnet = models.GenericIPAddressField(null=True, blank=True)
     gateway = models.GenericIPAddressField(null=True, blank=True)
     sd_path = models.CharField(max_length=255, null=True, blank=True)
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+    class Meta:
+        verbose_name = "Мультиплексор"
+        verbose_name_plural = "Мультиплексоры"
+        ordering = ["name"]
 
     def __str__(self):
         return self.name
@@ -20,10 +26,14 @@ class Channel(models.Model):
     number = models.PositiveSmallIntegerField()  # CH-1 ... CH-14
     # для "полканалов" можно использовать дробное значение (1, 1.5, 2, ...)
     position = models.DecimalField(max_digits=4, decimal_places=1, default=Decimal("1.0"))
-
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
     class Meta:
         unique_together = ("multiplexor", "number", "position")
-
+        verbose_name = "Канал"
+        verbose_name_plural = "Каналы"
+        ordering = ["multiplexor", "number", "position"]
+        
     def __str__(self):
         return f"{self.multiplexor.name} - CH{self.number} ({self.position})"
 
@@ -33,10 +43,16 @@ class SensorType(models.Model):
     code = models.CharField(max_length=10, unique=True)  # GA, PE, GLE
     name = models.CharField(max_length=100)
     description = models.TextField(blank=True, null=True)
-
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
     # пороговые значения для всех сенсоров этого типа
     min_value = models.DecimalField(max_digits=12, decimal_places=4, null=True, blank=True)
     max_value = models.DecimalField(max_digits=12, decimal_places=4, null=True, blank=True)
+    
+    class Meta:
+        verbose_name = "Тип сенсора"
+        verbose_name_plural = "Типы сенсоров"
+        ordering = ["name"]
 
     def __str__(self):
         return self.code
@@ -48,10 +64,14 @@ class SignalFormat(models.Model):
     code = models.CharField(max_length=50)  # например "4-20мА", "VW f<1600Hz", "NTC R>250Ohm"
     unit = models.CharField(max_length=20, blank=True, null=True)  # °C, мкм/м, мм и т.п.
     conversion_rule = models.CharField(max_length=255, blank=True, null=True)
-
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
     class Meta:
         unique_together = ("sensor_type", "code")
-
+        verbose_name = "Формат сигнала"
+        verbose_name_plural = "Форматы сигналов"
+        ordering = ["sensor_type", "code"]
+        
     def __str__(self):
         return f"{self.sensor_type.code} - {self.code}"
 
@@ -63,6 +83,12 @@ class Sensor(models.Model):
     signal_format = models.ForeignKey(SignalFormat, on_delete=models.SET_NULL, null=True, blank=True)
     serial_number = models.CharField(max_length=50, blank=True, null=True)  # CL 2106009
     name = models.CharField(max_length=50, blank=True, null=True)  # GA-1, HLE-1 и т.п.
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+    class Meta:
+        verbose_name = "Датчик"
+        verbose_name_plural = "Датчики"
+        ordering = ["channel", "sensor_type", "serial_number"]
 
     def __str__(self):
         return f"{self.name or self.sensor_type.code} ({self.serial_number})"
@@ -75,13 +101,18 @@ class Metric(models.Model):
     raw_value = models.CharField(max_length=50)  # исходное значение из файла (например "11.964 (A)")
     value = models.FloatField(null=True, blank=True)  # преобразованное значение
     status = models.CharField(max_length=20, blank=True, null=True)  # No Rx, Error, NotAv и т.д.
-
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
+    
     class Meta:
+        verbose_name = "Метрика"
+        verbose_name_plural = "Метрики"
+        ordering = ["timestamp", "sensor"]
         indexes = [
             models.Index(fields=["timestamp"]),
             models.Index(fields=["sensor"]),
         ]
-
+        
     def __str__(self):
         return f"{self.timestamp} {self.sensor} = {self.value} {self.sensor.signal_format.unit if self.sensor.signal_format else ''}"
 
@@ -101,6 +132,7 @@ class Alert(models.Model):
         default="warning"
     )
     created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)
     resolved = models.BooleanField(default=False)
 
     class Meta:
@@ -109,6 +141,9 @@ class Alert(models.Model):
             models.Index(fields=["sensor"]),
             models.Index(fields=["sensor_type"]),
         ]
-
+        verbose_name = "Тревога"
+        verbose_name_plural = "Тревоги"
+        ordering = ["created_at", "sensor"]
+        
     def __str__(self):
         return f"ALERT {self.sensor} @ {self.metric.timestamp}: {self.message}"