util

Documentation

Index

• Variables
• func JoinURL(base, suffix string) (string, error)
• func LoadLocation(name string) (*time.Location, error)
• func RenderSize(maxSize int, input string, renderFunc func(string) (string, error)) (string, error)
• func RenderSizeN(maxSize int, inputs []string, renderFunc func([]string) (string, error)) (result string, err error)
• type ContextPreparer
• type Prepare
  • func (p *Prepare) P(query string) (s *sql.Stmt)
• type PrepareStmt
  • func (p *PrepareStmt) PrepareFor(ctx context.Context, cp ContextPreparer) (*sql.Stmt, error)
• type Preparer
• type QueryError

Variables

var ErrNoSolution = fmt.Errorf("no solution")

ErrNoSolution is returned by RenderSize when it can't find a solution.

Functions

func JoinURL

func JoinURL(base, suffix string) (string, error)

JoinURL will join a base URL and suffix, taking care to preserve and merge query parameters.

func LoadLocation

func LoadLocation(name string) (*time.Location, error)

LoadLocation works like time.LoadLocation but caches the result for the life of the process.

func RenderSize

func RenderSize(maxSize int, input string, renderFunc func(string) (string, error)) (string, error)

RenderSize will return the rendered result as close as possible to the max size.

func RenderSizeN

func RenderSizeN(maxSize int, inputs []string, renderFunc func([]string) (string, error)) (result string, err error)

RenderSizeN works like RenderSize but accepts multiple inputs.

Inputs are trimmed one by one starting with the fist element.

Types

type ContextPreparer

type ContextPreparer interface {
	PrepareContext(context.Context, string) (*sql.Stmt, error)
}

type Prepare

type Prepare struct {
	DB  Preparer
	Ctx context.Context
	Err error
}

Prepare is used to prepare SQL statements.

If Ctx is specified, it will be used to prepare all statements. Only the first error is recorded. Subsequent calls to `P` are ignored after a failure.

func (*Prepare) P

func (p *Prepare) P(query string) (s *sql.Stmt)

type PrepareStmt

type PrepareStmt struct {
	*sql.Stmt
	// contains filtered or unexported fields
}

func (*PrepareStmt) PrepareFor

func (p *PrepareStmt) PrepareFor(ctx context.Context, cp ContextPreparer) (*sql.Stmt, error)

type Preparer

type Preparer interface {
	PrepareContext(context.Context, string) (*sql.Stmt, error)
}

type QueryError

type QueryError interface {
	Query() string
	Cause() *sqlutil.Error
}