update 04.03.24

src/util/structs.go

@@ -0,0 +1,25 @@
+package util
+
+import (
+	"go.mongodb.org/mongo-driver/bson/primitive"
+	"time"
+)
+
+type Person struct {
+	ID    primitive.ObjectID `bson:"_id,omitempty"`
+	Name  string             `bson:"name"`
+	Age   int                `bson:"age,omitempty" json:"age,omitempty"`
+	Email string             `bson:"email,omitempty" json:"email,omitempty"`
+}
+
+type Debt struct {
+	ID          primitive.ObjectID `bson:"_id,omitempty"`
+	PersonID    primitive.ObjectID `bson:"fk_pid"`
+	Amount      int                `bson:"amount"`
+	Description string             `bson:"description,omitempty"`
+	Datetime    time.Time          `bson:"datetime"`
+}
+type PersonWithDebts struct {
+	Person Person `json:"person"`
+	Debts  []Debt `json:"debts"`
+}

src/util/util.go

@@ -0,0 +1,83 @@
+package util
+
+import (
+	"context"
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/bson/primitive"
+	"go.mongodb.org/mongo-driver/mongo"
+	"log"
+	"net/http"
+	"time"
+)
+
+var Client *mongo.Client
+
+func GetDebtsForPerson(client *mongo.Client, personID string) ([]Debt, error) {
+	var results []Debt
+
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	// Umwandlung der personID von string in primitive.ObjectID
+	objID, err := primitive.ObjectIDFromHex(personID)
+	if err != nil {
+		return nil, err
+	}
+
+	// Verbindung zur "debts" Sammlung
+	debtsCollection := client.Database("debtlist").Collection("debts")
+
+	// Abfrage erstellen, die alle Schulden findet, deren fk_pid mit der personID übereinstimmt
+	filter := bson.M{"fk_pid": objID}
+	cursor, err := debtsCollection.Find(ctx, filter)
+	if err != nil {
+		return nil, err
+	}
+	defer cursor.Close(ctx)
+
+	// Durchlaufen des Cursors und Hinzufügen der Ergebnisse zur results-Slice
+	for cursor.Next(ctx) {
+		var debt Debt
+		if err := cursor.Decode(&debt); err != nil {
+			return nil, err
+		}
+		results = append(results, debt)
+	}
+
+	if err := cursor.Err(); err != nil {
+		return nil, err
+	}
+
+	return results, nil
+}
+func InsertRandomData(client *mongo.Client) {
+	persons := []string{"Max", "Moritz", "Hans", "Peter", "Paul", "Klaus", "Karl", "Kai", "Kurt", "Karl-Heinz"}
+	debts := []Debt{}
+	for i := 0; i < 10; i++ {
+		person := Person{Name: persons[i]}
+		collection := client.Database("debtlist").Collection("persons")
+		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+		defer cancel()
+		result, err := collection.InsertOne(ctx, person)
+		if err != nil {
+			log.Fatal(err)
+		}
+		for j := 0; j < 3; j++ {
+			debts = append(debts, Debt{PersonID: result.InsertedID.(primitive.ObjectID), Amount: j * 100, Description: "Test", Datetime: time.Now()})
+		}
+	}
+	collection := client.Database("debtlist").Collection("debts")
+	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+	defer cancel()
+	for _, debt := range debts {
+		_, err := collection.InsertOne(ctx, debt)
+		if err != nil {
+			log.Fatal(err)
+		}
+	}
+}
+
+func Init(w http.ResponseWriter, r *http.Request) {
+	InsertRandomData(Client)
+	w.Write([]byte("Init"))
+}