channel.go

package rss2

import (
	"encoding/xml"
	"fmt"
)

// Channel represents an rss channel element. Title, Link and
// Description are required.
type Channel struct {
	XMLName        xml.Name    `xml:"channel"`
	Title          string      `xml:"title"`
	Link           string      `xml:"link"`
	Description    string      `xml:"description"`
	Language       string      `xml:"language,omitempty"`
	Copyright      string      `xml:"copyright,omitempty"`
	ManagingEditor string      `xml:"managingEditor,omitempty"`
	WebMaster      string      `xml:"webMaster,omitempty"`
	PubDate        *RSSTime    `xml:"pubDate,omitempty"`
	LastBuildDate  *RSSTime    `xml:"lastBuildDate,omitempty"`
	Categories     []*Category `xml:"category,omitempty"`
	Generator      string      `xml:"generator,omitempty"`
	Docs           string      `xml:"docs,omitempty"`
	Cloud          *Cloud      `xml:"cloud,omitempty"`
	TTL            int         `xml:"ttl,omitempty"`
	Image          *Image      `xml:"image,omitempty"`
	Rating         string      `xml:"rating,omitempty"`
	TextInput      *TextInput  `xml:"textInput,omitempty"`
	SkipHours      *SkipHours  `xml:"skipHours,omitempty"`
	SkipDays       *SkipDays   `xml:"skipDays,omitempty"`
	Items          []*Item     `xml:"item,omitempty"`
}

// NewChannel creates a new Channel.
func NewChannel(title, link, description string) (*Channel, error) {
	if len(title) == 0 || len(link) == 0 || len(description) == 0 {
		return nil, fmt.Errorf(`empty string passed to NewChannel()`)
	}
	return &Channel{
		XMLName:     xml.Name{Local: `channel`},
		Title:       title,
		Link:        link,
		Description: description,
	}, nil
}