Luís Murta a6a350c901
Implements /transactions POST method
It adds the method to the OpenAPI spec and generates a new server
config. The requirement for the ID on the Transaction component is
removed, so that it can be reused for insertions.
It also adds two new middlewares, a logging and a spec validator. If a
request does not follow the spec, a 400 is returned immediately.

Issue: #18
2024-05-28 21:59:23 +01:00

105 lines
2.3 KiB
Go

package dal
import (
"database/sql"
"log"
"git.rosemyrtle.work/personal-finance/server/internal/entity"
)
type DalImpl struct {
Db *sql.DB
}
func (dal *DalImpl) Transaction(transactionId int64) (*entity.Transaction, error) {
log.Printf("DAL::Transaction(%v)", transactionId)
if dal.Db == nil {
log.Panic("database not available")
}
rows, err := dal.Db.Query("SELECT t.id, t.date, t.description, t.amount FROM pfbudget.transactions t WHERE t.id = $1", transactionId)
if err != nil {
return nil, err
}
transactions := convert[entity.Transaction](rows)
if len(transactions) == 0 {
return nil, nil
}
return &transactions[0], nil
}
func (dal *DalImpl) Transactions() (entity.Transactions, error) {
log.Print("DAL::Transactions")
if dal.Db == nil {
log.Panic("database not available")
}
rows, err := dal.Db.Query("SELECT t.id, t.date, t.description, t.amount FROM pfbudget.transactions t")
if err != nil {
return entity.Transactions{}, err
}
return convert[entity.Transaction](rows), nil
}
func (dal *DalImpl) InsertTransaction(t entity.Transaction) (entity.Transaction, error) {
log.Print("DAL::InsertTransaction")
if dal.Db == nil {
log.Panic("database not available")
}
stmt := `
INSERT INTO pfbudget.transactions (date, description, value)
VALUES ($1, $2, $3)
RETURNING id
`
id := new(uint64)
if err := dal.Db.QueryRow(stmt, t.Date, t.Description, t.Value).Scan(id); err != nil {
return entity.Transaction{}, err
}
t.Id = *id
return t, nil
}
func (dal *DalImpl) Bank(bankId string) (*entity.Bank, error) {
log.Printf("DAL::Bank(%v)", bankId)
if dal.Db == nil {
log.Panic("database not available")
}
rows, err := dal.Db.Query("SELECT b.name, b.name, n.requisition_id FROM pfbudget.banks b JOIN pfbudget.banks_nordigen n ON b.name = n.name WHERE b.name = $1", bankId)
if err != nil {
return nil, err
}
banks := convert[entity.Bank](rows)
if len(banks) == 0 {
return nil, nil
}
return &banks[0], nil
}
func (dal *DalImpl) Banks() (entity.Banks, error) {
log.Print("DAL::Banks")
if dal.Db == nil {
log.Panic("database not available")
}
rows, err := dal.Db.Query("SELECT b.name, b.name, n.requisition_id FROM pfbudget.banks b JOIN pfbudget.banks_nordigen n ON b.name = n.name")
if err != nil {
return entity.Banks{}, err
}
return convert[entity.Bank](rows), nil
}