feat(BE-115,116,117): implement chickin CRUD, approve logic, and stock availabilit

internal/entities/stock_availabilites.go

@@ -0,0 +1,26 @@
+package entities
+
+import (
+	"time"
+
+	"gorm.io/gorm"
+)
+
+const (
+	EntityTypeProjectFlockKandang = "PROJECT_FLOCK_KANDANG"
+)
+
+type StockAvailability struct {
+	Id               uint           `gorm:"primaryKey"`
+	EntityType       string         `gorm:"size:50;not null"`
+	EntityId         uint           `gorm:"not null"`
+	ProductId        uint           `gorm:"not null"`
+	Quantity         float64        `gorm:"not null;default:0"`
+	ReservedQuantity float64        `gorm:"not null;default:0"`
+	Unit             string         `gorm:"size:20"`
+	LastUpdated      time.Time      `gorm:"autoUpdateTime"`
+	CreatedAt        time.Time      `gorm:"autoCreateTime"`
+	DeletedAt        gorm.DeletedAt `gorm:"index" json:"-"`
+
+	Product *Product `gorm:"foreignKey:ProductId;references:Id"`
+}