143 lines
3.7 KiB
Go
143 lines
3.7 KiB
Go
package atomfeed
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import (
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"encoding/xml"
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"errors"
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"fmt"
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)
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// It is advisable that each atom:entry element contain a non-empty atom:title
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// element, a non-empty atom:content element when that element is present, and
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// a non-empty atom:summary element when the entry contains no atom:content
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// element.
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type Entry struct {
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*CommonAttributes
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Authors []*Person `xml:"author,omitempty"`
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Categories []*Category `xml:"category,omitempty"`
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Content *Content `xml:"content,omitempty"`
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Contributors []*Person `xml:"contributors,omitempty"`
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ID *ID `xml:"id"`
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Links []*Link `xml:"link,omitempty"`
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Published *Date `xml:"published,omitempty"`
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Rights Text `xml:"rights,omitempty"`
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Source *Source `xml:"source,omitempty"`
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Summary Text `xml:"summary,omitempty"`
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Title Text `xml:"title"`
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Updated *Date `xml:"updated"`
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Extensions []*ExtensionElement `xml:",any,omitempty"`
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}
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func (e *Entry) checkAuthors() error {
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if e.Authors == nil {
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if e.Source.Authors == nil {
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return errors.New("no authors set in entry")
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}
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} else {
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for i, a := range e.Authors {
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if err := a.Check(); err != nil {
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return fmt.Errorf("author element %v of entry: %v", i, err)
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}
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}
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}
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return nil
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}
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func (e *Entry) AddExtension(name string, value any) {
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e.Extensions = append(e.Extensions, &ExtensionElement{XMLName: xml.Name{Local: name}, Value: value})
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}
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func (e *Entry) Check() error {
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if e.ID == nil {
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return errors.New("no id element of entry")
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} else {
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if err := e.ID.Check(); err != nil {
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return fmt.Errorf("id element of entry: %v", err)
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}
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}
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if err := e.checkAuthors(); err != nil {
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return fmt.Errorf("entry %v: %v", e.ID.URI, err)
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}
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if e.Categories != nil {
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for i, c := range e.Categories {
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if err := c.Check(); err != nil {
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return fmt.Errorf("category element %v of entry %v: %v", i, e.ID.URI, err)
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}
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}
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}
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if e.Content != nil {
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if err := (*e.Content).Check(); err != nil {
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return fmt.Errorf("content element of entry %v: %v", e.ID.URI, err)
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}
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}
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if e.Contributors != nil {
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for i, c := range e.Contributors {
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if err := c.Check(); err != nil {
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return fmt.Errorf("contributor element %v of entry %v: %v", i, e.ID.URI, err)
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}
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}
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}
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if e.Links != nil {
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for i, l := range e.Links {
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if err := l.Check(); err != nil {
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return fmt.Errorf("link element %v of entry %v: %v", i, e.ID.URI, err)
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}
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}
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}
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if e.Published != nil {
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if err := e.Published.Check(); err != nil {
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return fmt.Errorf("published element of entry %v: %v", e.ID.URI, err)
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}
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}
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if e.Rights != nil {
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if err := e.Rights.Check(); err != nil {
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return fmt.Errorf("rights element of entry %v: %v", e.ID.URI, err)
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}
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}
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if e.Source != nil {
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if err := e.Source.Check(); err != nil {
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return fmt.Errorf("source element of entry %v: %v", e.ID.URI, err)
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}
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}
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if e.Summary != nil {
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if err := e.Summary.Check(); err != nil {
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return fmt.Errorf("summary element of entry %v: %v", e.ID.URI, err)
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}
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}
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if e.Title == nil {
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return fmt.Errorf("no title element of entry %v", e.ID.URI)
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} else {
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if err := e.Title.Check(); err != nil {
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return fmt.Errorf("title element of entry %v: %v", e.ID.URI, err)
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}
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}
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if e.Updated == nil {
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return fmt.Errorf("no updated element of entry %v", e.ID.URI)
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} else {
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if err := e.Updated.Check(); err != nil {
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return fmt.Errorf("updated element of entry %v: %v", e.ID.URI, err)
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}
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}
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if e.Extensions != nil {
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for i, x := range e.Extensions {
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if err := x.Check(); err != nil {
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return fmt.Errorf("extension element %v of entry %v: %v", i, e.ID.URI, err)
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}
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}
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}
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return nil
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}
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