first handler writing to database

src/udi/database/abstract_database.go

@@ -3,15 +3,20 @@ package database
 import "time"
 import "gorm.io/gorm"
 
+
+type VariableType struct {
+  Label string `json:"label"`
+  Variable string `json:"variable"`
+  Unit string `json:"unit"`
+  Value interface{} `json:"value,omitempty"`
+}
+
 type Measurement struct {
   Time time.Time `gorm:"not null;primary_key"`
   Application string `gorm:"not null"`
-  SensorType string `gorm:"not null"`
-  Sensor string `gorm:"not null"`
-  Variable string `gorm:"not null"`
-  Unit string
-  Value float32 `gorm:"not null"`
+  Device string
   Attributes map[string]string `gorm:"serializer:json;type:jsonb"`
+  Values map[string]VariableType `gorm:"serializer:json;type:jsonb"`
 }
 
 type Application struct {
@@ -20,21 +25,21 @@ type Application struct {
   Attributes map[string]string `gorm:"serializer:json;type:jsonb"`
 }
 
-type SensorType struct {
+
+type DeviceType struct {
   gorm.Model
   Label string `gorm:"not null"`
-  Variable string `gorm:"not null"`
-  Unit string
+  ModelIdentifier string
   Attributes map[string]string `gorm:"serializer:json;type:jsonb"`
 }
 
-type Sensor struct {
+type Device struct {
   gorm.Model
   Label string `gorm:"not null"`
   ApplicationID int `gorm:"not null"`
   Application Application
-  SensorTypeID int `gorm:"not null"`
-  SensorType SensorType
+  DeviceTypeID int `gorm:"not null"`
+  DeviceType DeviceType
   Attributes map[string]string `gorm:"serializer:json;type:jsonb"`
 }