Use uuid.UUID everywhere and have postgres generate ids

postgres/transactions.sql.go

@@ -0,0 +1,78 @@
+// Code generated by sqlc. DO NOT EDIT.
+// source: transactions.sql
+
+package postgres
+
+import (
+	"context"
+	"database/sql"
+	"time"
+
+	"github.com/google/uuid"
+)
+
+const createTransaction = `-- name: CreateTransaction :one
+INSERT INTO transactions
+(budget_id, date, memo, amount)
+VALUES ($1, $2, $3, $4)
+RETURNING id, budget_id, date, memo, amount
+`
+
+type CreateTransactionParams struct {
+	BudgetID uuid.UUID
+	Date     time.Time
+	Memo     sql.NullString
+	Amount   string
+}
+
+func (q *Queries) CreateTransaction(ctx context.Context, arg CreateTransactionParams) (Transaction, error) {
+	row := q.db.QueryRowContext(ctx, createTransaction,
+		arg.BudgetID,
+		arg.Date,
+		arg.Memo,
+		arg.Amount,
+	)
+	var i Transaction
+	err := row.Scan(
+		&i.ID,
+		&i.BudgetID,
+		&i.Date,
+		&i.Memo,
+		&i.Amount,
+	)
+	return i, err
+}
+
+const getTransactionsForBudget = `-- name: GetTransactionsForBudget :many
+SELECT transactions.id, transactions.budget_id, transactions.date, transactions.memo, transactions.amount FROM transactions 
+WHERE transactions.budget_id = $1
+`
+
+func (q *Queries) GetTransactionsForBudget(ctx context.Context, budgetID uuid.UUID) ([]Transaction, error) {
+	rows, err := q.db.QueryContext(ctx, getTransactionsForBudget, budgetID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var items []Transaction
+	for rows.Next() {
+		var i Transaction
+		if err := rows.Scan(
+			&i.ID,
+			&i.BudgetID,
+			&i.Date,
+			&i.Memo,
+			&i.Amount,
+		); err != nil {
+			return nil, err
+		}
+		items = append(items, i)
+	}
+	if err := rows.Close(); err != nil {
+		return nil, err
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return items, nil
+}