db

Documentation

Index

• Variables
• func StoreTx(ctx context.Context, tx pgx.Tx) context.Context
• type App
  • func New(config Config) (App, error)
  • func (a App) Bulk(ctx context.Context, fetcher func() ([]interface{}, error), ...) error
  • func (a App) Close()
  • func (a App) Create(ctx context.Context, query string, args ...interface{}) (uint64, error)
  • func (a App) DoAtomic(ctx context.Context, action func(context.Context) error) error
  • func (a App) Enabled() bool
  • func (a App) Exec(ctx context.Context, query string, args ...interface{}) error
  • func (a App) Get(ctx context.Context, scanner func(pgx.Row) error, query string, ...) error
  • func (a App) List(ctx context.Context, scanner func(pgx.Rows) error, query string, ...) (err error)
  • func (a App) One(ctx context.Context, query string, args ...interface{}) error
  • func (a App) Ping() error
• type Config
  • func Flags(fs *flag.FlagSet, prefix string, overrides ...flags.Override) Config
• type Database

Variables

var (
	// ErrNoHost occurs when host is not provided in configuration
	ErrNoHost = errors.New("no host for database connection")

	// ErrNoTransaction occurs when no transaction is provided but needed
	ErrNoTransaction = errors.New("no transaction in context, please wrap with DoAtomic()")

	// ErrBulkEnded occurs when bulk creation is over
	ErrBulkEnded = errors.New("no more data to copy")

	// SQLTimeout when running queries
	SQLTimeout = time.Second * 5
)

Functions

func StoreTx

func StoreTx(ctx context.Context, tx pgx.Tx) context.Context

StoreTx stores given transaction in context

Types

type App

type App struct {
	// contains filtered or unexported fields
}

App of package

func New

func New(config Config) (App, error)

New creates new App from Config

func (App) Bulk

func (a App) Bulk(ctx context.Context, fetcher func() ([]interface{}, error), schema, table string, columns ...string) error

Bulk load data into schema and table by batch

func (App) Close

func (a App) Close()

Close the database connection

func (App) Create

func (a App) Create(ctx context.Context, query string, args ...interface{}) (uint64, error)

Create execute query with a RETURNING id

func (App) DoAtomic

func (a App) DoAtomic(ctx context.Context, action func(context.Context) error) error

DoAtomic execute given action in a transactionnal context

func (App) Enabled

func (a App) Enabled() bool

Enabled check if sql.DB is provided

func (App) Exec

func (a App) Exec(ctx context.Context, query string, args ...interface{}) error

Exec execute query with specified timeout, disregarding result

func (App) Get

func (a App) Get(ctx context.Context, scanner func(pgx.Row) error, query string, args ...interface{}) error

Get execute single row query

func (App) List

func (a App) List(ctx context.Context, scanner func(pgx.Rows) error, query string, args ...interface{}) (err error)

List execute multiple rows query

func (App) One

func (a App) One(ctx context.Context, query string, args ...interface{}) error

One execute query with specified timeout, for exactly one row

func (App) Ping

func (a App) Ping() error

Ping indicate if database is ready or not

type Config

type Config struct {
	// contains filtered or unexported fields
}

Config of package

func Flags

func Flags(fs *flag.FlagSet, prefix string, overrides ...flags.Override) Config

Flags adds flags for configuring package

type Database

type Database interface {
	Ping(context.Context) error
	Close()
	Begin(context.Context) (pgx.Tx, error)
	Query(context.Context, string, ...interface{}) (pgx.Rows, error)
	QueryRow(context.Context, string, ...interface{}) pgx.Row
}

Database interface needed for working