first version of db model

wagfarm-api/main.go

@@ -39,6 +39,8 @@ func dbMigration() {
 	db.Create(&models.AssetType{Name: "field"})
 	db.Create(&models.AssetType{Name: "animal"})
 	db.Create(&models.AssetType{Name: "substance"})
+
+	err := db.SetupJoinTable(&models.Fertilizer{}, "Ingredients", &models.FertilizerIngredient{})
 }
 
 func main() {

wagfarm-api/models/asset_models.go

@@ -11,7 +11,6 @@ type Land struct {
 	FID                   string  `gorm:"not null"`
 	IsWaterProtectionArea bool    `gorm:"not null"`
 	IsRedArea             bool    `gorm:"not null"`
-	Betriebsnummer?
 	Area                  float64 `gorm:"not null"`
 }
 
@@ -20,47 +19,69 @@ type Plant struct {
 	LandId         uint    `gorm:"not null"`
 	Land           Land    `gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
 	CropID         uint    `gorm:"not null"`
-	Crop			Taxonomy	`gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
+	Crop           Crop    `gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
 	CoverCropID    uint    `gorm:"not null"`
-	CoverCrop		Taxonomy	`gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
+	CoverCrop      Crop    `gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
 	Year           uint    `gorm:"not null"`
 	AreaPercentage float64 `gorm:"not null"`
 }
-
+type _Resource struct {
-type Machine struct {
 	_Asset
 	UnitID uint            `gorm:"not null"`
-	Unit 	Taxonomy	`gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
+	Unit   Unit            `gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
-	Cost 	float64		`gorm:"not null; type:decimal(10,2);"` // in euro
+	Cost   decimal.Decimal `gorm:"not null; type:decimal(10,2);"` // in euro/unit
 }
 
-type SeedType struct {
+type Machine struct {
-	ID		uint		`gorm:"primaryKey`
+	_Resource
-	Name	string		`gorm:"not null"`
+}
-	CropID	uint		`gorm:"not null"`
+
-	Crop	Taxonomy	`gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
+type _BoughtResource struct {
+	_Resource
+	BuyDate      Datetime.Time `gorm:"type:date;default:CURRENT_DATE"`
+	BoughtFromID uint          `gorm:"not null"`
+	BoughtFrom   Seller        `gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
+}
+
+type _SoldResource struct {
+	_Resource
+	SaleDate Datetime.Time `gorm:"type:date;default:CURRENT_DATE"`
+	SoldToID uint          `gorm:"not null"`
+	SoldTo   Customer      `gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
 }
 
 type Seed struct {
-	_Asset
+	_BoughtResource
-	BuyDate			Datetime.Time	`gorm:"type:date;default:CURRENT_DATE"`
-	UnitID			uint			`gorm:"not null"`
-	Unit 			Taxonomy		`gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
-	Cost 			float64			`gorm:"not null; type:decimal(10,2);"` // in euro/unit
-	SourcedFromID	uint			`gorm:"not null"`
-	SourcedFrom		Taxonomy		`gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
 	SeedTypeID uint     `gorm:"not null"`
 	SeedType   SeedType `gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
 }
 
 type Fertilizer struct {
 	_Asset
-	BuyDate				Datetime.Time	`gorm:"type:date;default:CURRENT_DATE"`
+	_BoughtResource
-	UnitID				uint			`gorm:"not null"`
-	Unit 				Taxonomy		`gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
-	Cost 				float64			`gorm:"not null; type:decimal(10,2);"` // in euro/unit
-	SourcedFromID		uint			`gorm:"not null"`
-	SourcedFrom			Taxonomy		`gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
 	FertilizerTypeID uint           `gorm:"not null"`
-	FertilizerType		Taxonomy		`gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
+	FertilizerType   FertilizerType `gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
+	// Association to the ingredients. This represents the composition.
+	Ingredients []FertilizerIngredient `gorm:"not null; many2many:fertilizer_ingredient"`
+}
+
+type FertilizerIngredient struct {
+	FertilizerAssetID uint    `gorm:"primaryKey"` // foreign key to the fertilizer asset
+	IngredientID      uint    `gorm:"primaryKey"` // foreign key to the ingredient
+	Amount            float64 `gorm:"not null"`   // amount of the ingredient
+
+	// Preload the ingredient details if needed.
+	Ingredient Ingredient `gorm:"not null"`
+}
+
+type Pesticide struct {
+	_BoughtResource
+	PesticideTypeID uint          `gorm:"not null"`
+	PesticideType   PesticideType `gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
+}
+
+type Product struct {
+	_SoldResource
+	ProductTypeID uint        `gorm:"not null"`
+	ProductType   ProductType `gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
 }

wagfarm-api/models/log_models.go

@@ -1,12 +1,14 @@
+package models
+
 type Log struct {
 	ID          uint          `gorm:"primaryKey"`
 	Name        string        `gorm:"not null"`
-	Notes		string	
+	Notes       string        `gorm:"not null"`
 	LogType     string        `gorm:"not null"`
 	Date        Datetime.Time `gorm:"type:date;default:CURRENT_DATE"not null`
 	Duration    float64       `gorm:"not null"` // in hours
 	VisibiltyID uint          `gorm:"not null"`
-	Visibility	Taxonomy		`gorm:"constraint:OnUpdate:CASCADE,OnDelete:CASCADE;not null"`
+	Visibility  Visibility    `gorm:"constraint:OnUpdate:CASCADE,OnDelete:CASCADE;not null"`
 }
 
 type _LogMetadata struct {
@@ -27,15 +29,31 @@ type SeedingLog struct {
 	SeedID       uint             `gorm:"not null"`
 	Seed         Seed             `gorm:"constraint:OnUpdate:CASCADE,OnDelete:CASCADE;not null"`
 	TechniqueID  uint             `gorm:"not null"`
-	Technique		Taxonomy	`gorm:"constraint:OnUpdate:CASCADE,OnDelete:CASCADE;not null"`
+	Technique    SeedingTechnique `gorm:"constraint:OnUpdate:CASCADE,OnDelete:CASCADE;not null"`
 	Amount       float64          `gorm:"not null"` // in units/ha
 	ConditionsID uint             `gorm:"not null"`
-	Conditions		Taxonomy	`gorm:"constraint:OnUpdate:CASCADE,OnDelete:CASCADE;not null"`
+	Conditions   SeedingCondition `gorm:"constraint:OnUpdate:CASCADE,OnDelete:CASCADE;not null"`
 }
 
 type FertilizingLog struct {
 	_FieldWorkLog
 	FertilizerID uint       `gorm:"not null"`
 	Fertilizer   Fertilizer `gorm:"constraint:OnUpdate:CASCADE,OnDelete:CASCADE;not null"`
-	Amount			float64		`gorm:"not null"` // in units/ha
+	Amount       float64    `gorm:"not null"` // in units of the fertilizer
+}
+
+type CropProtectionLog struct {
+	_FieldWorkLog
+	PesticideID   uint      `gorm:"not null"`
+	Pesticide     Pesticide `gorm:"constraint:OnUpdate:CASCADE,OnDelete:CASCADE;not null"`
+	Amount        float64   `gorm:"not null"` // in units of the pesticide
+	PerformedByID uint      `gorm:"not null"`
+	PerformedBy   Worker    `gorm:"constraint:OnUpdate:CASCADE,OnDelete:CASCADE;not null"`
+}
+
+type HarvestLog struct {
+	_FieldWorkLog
+	ProductID uint    `gorm:"not null"`
+	Product   Product `gorm:"constraint:OnUpdate:CASCADE,OnDelete:CASCADE;not null"`
+	Amount    float64 `gorm:"not null"` // in units of the product
 }

wagfarm-api/models/taxonomy_models.go

@@ -1,7 +1,28 @@
 package models
 
-type Taxonomy struct {
+type _Taxonomy struct {
 	ID   uint   `gorm:"primaryKey" json:"id"`
-	Type  string `gorm:"not null;index" json:"type"` // e.g., "unit", "color", etc.
 	Name string `gorm:"not null;index" json:"name"` // e.g., "kg", "lb"
 }
+
+type Unit struct{ _Taxonomy }
+type Visibility struct{ _Taxonomy }
+type SeedingTechnique struct{ _Taxonomy }
+type SeedingCondition struct{ _Taxonomy }
+type Worker struct{ _Taxonomy }
+type Crop struct{ _Taxonomy }
+type Seller struct{ _Taxonomy }
+type Customer struct{ _Taxonomy }
+type SeedType struct {
+	_Taxonomy
+	CropID uint `gorm:"not null"`
+	Crop   Crop `gorm:"not null; constraint:OnUpdate:CASCADE,OnDelete:CASCADE;"`
+}
+type Ingredient struct {
+	_Taxonomy
+	UnitID uint `gorm:"not null"`
+	Unit   Unit `gorm:"not null"`
+}
+type FertilizerType struct{ _Taxonomy }
+type PesticideType struct{ _Taxonomy }
+type ProductType struct{ _Taxonomy }