adding position and trade endpoints

internal/database/main.go

@@ -30,6 +30,7 @@ func InitDB(db *sql.DB) {
     CREATE TABLE IF NOT EXISTS position (
         id         INTEGER PRIMARY KEY AUTOINCREMENT,
         company_id INTEGER NOT NULL,
+        currency_id INTEGER NOT NULL,
         shares     INTEGER NOT NULL,
         weight     REAL NOT NULL,
         CostBases   REAL NOT NULL,

internal/database/portfolio.go

@@ -30,6 +30,29 @@ func GetTrades(db *sql.DB) ([]model.Trade, error) {
 	return trades, nil
 }
 
+func GetPositions(db *sql.DB) ([]model.Position, error) {
+	rows, err := db.Query("SELECT company_id, shares, weight, CostBases, currency_id")
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var positions []model.Position
+	for rows.Next() {
+		var t model.Position
+		err := rows.Scan(&t.Company.ID, &t.Shares, &t.Weight, &t.CostBasis, t.Currency)
+		if err != nil {
+			return nil, err
+		}
+		positions = append(positions, t)
+	}
+	if err = rows.Err(); err != nil {
+		return nil, err
+	}
+
+	return positions, nil
+}
+
 func InsertTrade(db *sql.DB, trade model.Trade) error {
 	_, err := db.Exec(
 		"INSERT INTO trades (company_id, currency_id, shares, product, type, price, traded_at) VALUES (?, ?, ?, ?, ?, ?, ?)",