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sqlx with firebirdsql driver example https://github.com/nakagami/firebirdsql/issues/32
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package main | |
import ( | |
"database/sql" | |
"fmt" | |
"log" | |
"github.com/jmoiron/sqlx" | |
_ "github.com/nakagami/firebirdsql" | |
) | |
var schema1 = ` | |
CREATE TABLE person ( | |
first_name varchar(32), | |
last_name varchar(32), | |
email varchar(32) | |
) | |
` | |
var schema2 = ` | |
CREATE TABLE place ( | |
country varchar(32), | |
city varchar(32), | |
telcode integer | |
)` | |
type Person struct { | |
FirstName string `db:"first_name"` | |
LastName string `db:"last_name"` | |
Email string | |
} | |
type Place struct { | |
Country string | |
City sql.NullString | |
TelCode int | |
} | |
func main() { | |
db, err := sqlx.Connect("firebirdsql_createdb", "sysdba:masterkey@localhost/tmp/test.fdb?column_name_to_lower=true") | |
if err != nil { | |
log.Fatalln(err) | |
} | |
// exec the schema | |
db.MustExec(schema1) | |
db.MustExec(schema2) | |
tx := db.MustBegin() | |
tx.MustExec("INSERT INTO person (first_name, last_name, email) VALUES (?, ?, ?)", "Jason", "Moiron", "jmoiron@jmoiron.net") | |
tx.MustExec("INSERT INTO person (first_name, last_name, email) VALUES (?, ?, ?)", "John", "Doe", "johndoeDNE@gmail.net") | |
tx.MustExec("INSERT INTO place (country, city, telcode) VALUES (?, ?, ?)", "United States", "New York", "1") | |
tx.MustExec("INSERT INTO place (country, telcode) VALUES (?, ?)", "Hong Kong", "852") | |
tx.MustExec("INSERT INTO place (country, telcode) VALUES (?, ?)", "Singapore", "65") | |
// Named queries can use structs, so if you have an existing struct (i.e. person := &Person{}) that you have populated, you can pass it in as &person | |
tx.NamedExec("INSERT INTO person (first_name, last_name, email) VALUES (:first_name, :last_name, :email)", &Person{"Jane", "Citizen", "jane.citzen@example.com"}) | |
tx.Commit() | |
// Query the database, storing results in a []Person (wrapped in []interface{}) | |
people := []Person{} | |
db.Select(&people, "SELECT * FROM person ORDER BY first_name ASC") | |
jason, john := people[0], people[1] | |
fmt.Printf("%#v\n%#v", jason, john) | |
// Person{FirstName:"Jason", LastName:"Moiron", Email:"jmoiron@jmoiron.net"} | |
// Person{FirstName:"John", LastName:"Doe", Email:"johndoeDNE@gmail.net"} | |
// You can also get a single result, a la QueryRow | |
jason = Person{} | |
err = db.Get(&jason, "SELECT * FROM person WHERE first_name=?", "Jason") | |
fmt.Printf("%#v\n", jason) | |
// Person{FirstName:"Jason", LastName:"Moiron", Email:"jmoiron@jmoiron.net"} | |
// if you have null fields and use SELECT *, you must use sql.Null* in your struct | |
places := []Place{} | |
err = db.Select(&places, "SELECT * FROM place ORDER BY telcode ASC") | |
if err != nil { | |
fmt.Println(err) | |
return | |
} | |
usa, singsing, honkers := places[0], places[1], places[2] | |
fmt.Printf("%#v\n%#v\n%#v\n", usa, singsing, honkers) | |
// Place{Country:"United States", City:sql.NullString{String:"New York", Valid:true}, TelCode:1} | |
// Place{Country:"Singapore", City:sql.NullString{String:"", Valid:false}, TelCode:65} | |
// Place{Country:"Hong Kong", City:sql.NullString{String:"", Valid:false}, TelCode:852} | |
// Loop through rows using only one struct | |
place := Place{} | |
rows, err := db.Queryx("SELECT * FROM place") | |
for rows.Next() { | |
err := rows.StructScan(&place) | |
if err != nil { | |
log.Fatalln(err) | |
} | |
fmt.Printf("%#v\n", place) | |
} | |
// Place{Country:"United States", City:sql.NullString{String:"New York", Valid:true}, TelCode:1} | |
// Place{Country:"Hong Kong", City:sql.NullString{String:"", Valid:false}, TelCode:852} | |
// Place{Country:"Singapore", City:sql.NullString{String:"", Valid:false}, TelCode:65} | |
// Named queries, using `:name` as the bindvar. Automatic bindvar support | |
// which takes into account the dbtype based on the driverName on sqlx.Open/Connect | |
_, err = db.NamedExec(`INSERT INTO person (first_name,last_name,email) VALUES (:first,:last,:email)`, | |
map[string]interface{}{ | |
"first": "Bin", | |
"last": "Smuth", | |
"email": "bensmith@allblacks.nz", | |
}) | |
// Selects Mr. Smith from the database | |
rows, err = db.NamedQuery(`SELECT * FROM person WHERE first_name=:fn`, map[string]interface{}{"fn": "Bin"}) | |
// Named queries can also use structs. Their bind names follow the same rules | |
// as the name -> db mapping, so struct fields are lowercased and the `db` tag | |
// is taken into consideration. | |
rows, err = db.NamedQuery(`SELECT * FROM person WHERE first_name=:first_name`, jason) | |
} |
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