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example_test.go
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example_test.go
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package chai_test
import (
"fmt"
"github.com/chaisql/chai"
)
type User struct {
ID int64
Name string
Age uint32
}
func Example() {
// Create a database instance, here we'll store everything in memory
db, err := chai.Open(":memory:")
if err != nil {
panic(err)
}
defer db.Close()
// Create a table.
err = db.Exec("CREATE TABLE user (id int, name text, age int)")
if err != nil {
panic(err)
}
// Create an index.
err = db.Exec("CREATE INDEX idx_user_name ON user (name)")
if err != nil {
panic(err)
}
// Insert some data
err = db.Exec("INSERT INTO user (id, name, age) VALUES (?, ?, ?)", 10, "foo", 15)
if err != nil {
panic(err)
}
conn, err := db.Connect()
if err != nil {
panic(err)
}
defer conn.Close()
// Query some rows
stream, err := conn.Query("SELECT * FROM user WHERE id > ?", 1)
if err != nil {
panic(err)
}
// always close the result when you're done with it
defer stream.Close()
// Iterate over the results
err = stream.Iterate(func(r *chai.Row) error {
var u User
err = r.StructScan(&u)
if err != nil {
return err
}
fmt.Println(u)
return nil
})
if err != nil {
panic(err)
}
// Output:
// {10 foo 15}
}