qrm

Documentation

Index

• Variables
• func Query(ctx context.Context, db DB, query string, args []interface{}, ...) error
• type DB

Variables

var ErrNoRows = errors.New("qrm: no rows in result set")

ErrNoRows is returned by Query when query result set is empty

Functions

func Query

func Query(ctx context.Context, db DB, query string, args []interface{}, destPtr interface{}) error

Query executes Query Result Mapping (QRM) of `query` with list of parametrized arguments `arg` over database connection `db` using context `ctx` into destination `destPtr`. Destination can be either pointer to struct or pointer to slice of structs. If destination is pointer to struct and query result set is empty, method returns qrm.ErrNoRows.

Types

type DB

type DB interface {
	Exec(query string, args ...interface{}) (sql.Result, error)
	ExecContext(ctx context.Context, query string, args ...interface{}) (sql.Result, error)
	Query(query string, args ...interface{}) (*sql.Rows, error)
	QueryContext(ctx context.Context, query string, args ...interface{}) (*sql.Rows, error)
}

DB is common database interface used by jet execution