downraws

README

downraws

导出数据为 csv文件或xlsx文件。
控制单个文件中的数据量，并压缩为zip包。

Export data to csv or xlsx.
Control the amount of data in a single file and package it as zip

Documentation

Index

• Variables
• type DownRaws
  • func New(driverName, filename string, ...) (*DownRaws, error)
  • func (r *DownRaws) LoadData(ctx context.Context) error
  • func (r *DownRaws) WriteTo(writer io.Writer) (int64, error)
• type Driver
• type Option
  • func SetFields(fields ...string) Option
  • func SetLimit(limit int) Option
  • func SetMaxRaw(maxRaw int) Option
  • func SetOffset(offset int) Option
• type Writer

Variables

var (
	ErrDriverIsNotRegister            = errors.New("driver is not register")
	ErrProhibitLimitGreaterThanMaxRaw = errors.New("Prohibit limit greater than maxRaw")
)

var Drivers = map[string]Driver{}

Types

type DownRaws

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

func New

func New(driverName, filename string, fn func(ctx context.Context, limit, offset int) ([][]interface{}, error), options ...Option) (*DownRaws, error)

func (*DownRaws) LoadData

func (r *DownRaws) LoadData(ctx context.Context) error

func (*DownRaws) WriteTo

func (r *DownRaws) WriteTo(writer io.Writer) (int64, error)

type Driver

type Driver interface {
	NewWriter() Writer
	Suffix() string
}

type Option

type Option func(r *DownRaws)

func SetFields

func SetFields(fields ...string) Option

func SetLimit

func SetLimit(limit int) Option

func SetMaxRaw

func SetMaxRaw(maxRaw int) Option

func SetOffset

func SetOffset(offset int) Option

type Writer

type Writer interface {
	Write(...interface{}) error
	WriteTo(io.Writer) (int64, error)
}