egutierrez
a75170cbc6
Funciones Go con interfaz unificada para operaciones DB: open, close, create_table, exec, query, insert_row, insert_batch. Openers específicos por engine. Tipo DBConfig para configuración común. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
33 lines
882 B
Go
33 lines
882 B
Go
package infra
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import (
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"database/sql"
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"fmt"
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_ "github.com/jackc/pgx/v5/stdlib"
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)
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// PostgresOpen connects to a PostgreSQL server and returns a *sql.DB.
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// sslmode defaults to "disable" when empty.
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// Constructs a DSN of the form:
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//
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// host=<host> port=<port> user=<user> password=<password> dbname=<dbname> sslmode=<sslmode>
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func PostgresOpen(host string, port int, user, password, dbname string, sslmode string) (*sql.DB, error) {
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if sslmode == "" {
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sslmode = "disable"
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}
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dsn := fmt.Sprintf(
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"host=%s port=%d user=%s password=%s dbname=%s sslmode=%s",
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host, port, user, password, dbname, sslmode,
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)
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db, err := sql.Open("pgx", dsn)
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if err != nil {
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return nil, fmt.Errorf("postgres_open: open: %w", err)
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}
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if err := db.Ping(); err != nil {
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db.Close()
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return nil, fmt.Errorf("postgres_open: ping %s:%d/%s: %w", host, port, dbname, err)
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}
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return db, nil
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}
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