Some more example database interface code

backend/internal/database/db.go

@@ -58,3 +58,18 @@ func (d *Db) RemoveUser(username string) error {
 	_, err := d.Exec("DELETE FROM users WHERE username = ?", username)
 	return err
 }
+
+func (d *Db) GetUserId(username string) (int, error) {
+	var id int
+	err := d.Get(&id, "SELECT id FROM users WHERE username = ?", username)
+	return id, err
+}
+
+func (d *Db) AddProject(name string, description string, username string) error {
+	userId, err := d.GetUserId(username)
+	if err != nil {
+		return err
+	}
+	_, err = d.Exec("INSERT INTO projects (name, description, user_id) VALUES (?, ?, ?)", name, description, userId)
+	return err
+}

backend/internal/database/db_test.go

@@ -4,6 +4,9 @@ import (
 	"testing"
 )
 
+// Tests are not guaranteed to be sequential
+// Writing tests like this will bite you, eventually
+
 func TestDbConnect(t *testing.T) {
 	db := DbConnect()
 	_ = db
@@ -17,6 +20,20 @@ func TestDbAddUser(t *testing.T) {
 	}
 }
 
+func TestDbGetUserId(t *testing.T) {
+	db := DbConnect()
+
+	var id int
+
+	id, err := db.GetUserId("test")
+	if err != nil {
+		t.Error("GetUserId failed:", err)
+	}
+	if id != 1 {
+		t.Error("GetUserId failed: expected 1, got", id)
+	}
+}
+
 func TestDbRemoveUser(t *testing.T) {
 	db := DbConnect()
 	err := db.RemoveUser("test")