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export.go
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export.go
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package writefreely
import (
"archive/zip"
"bytes"
"encoding/csv"
"github.com/writeas/web-core/log"
"strings"
"time"
)
func exportPostsCSV(u *User, posts *[]PublicPost) []byte {
var b bytes.Buffer
r := [][]string{
{"id", "slug", "blog", "url", "created", "title", "body"},
}
for _, p := range *posts {
var blog string
if p.Collection != nil {
blog = p.Collection.Alias
}
f := []string{p.ID, p.Slug.String, blog, p.CanonicalURL(), p.Created8601(), p.Title.String, strings.Replace(p.Content, "\n", "\\n", -1)}
r = append(r, f)
}
w := csv.NewWriter(&b)
w.WriteAll(r) // calls Flush internally
if err := w.Error(); err != nil {
log.Info("error writing csv:", err)
}
return b.Bytes()
}
type exportedTxt struct {
Name, Body string
Mod time.Time
}
func exportPostsZip(u *User, posts *[]PublicPost) []byte {
// Create a buffer to write our archive to.
b := new(bytes.Buffer)
// Create a new zip archive.
w := zip.NewWriter(b)
// Add some files to the archive.
var filename string
files := []exportedTxt{}
for _, p := range *posts {
filename = ""
if p.Collection != nil {
filename += p.Collection.Alias + "/"
}
if p.Slug.String != "" {
filename += p.Slug.String + "_"
}
filename += p.ID + ".txt"
files = append(files, exportedTxt{filename, p.Content, p.Created})
}
for _, file := range files {
head := &zip.FileHeader{Name: file.Name}
head.SetModTime(file.Mod)
f, err := w.CreateHeader(head)
if err != nil {
log.Error("export zip header: %v", err)
}
_, err = f.Write([]byte(file.Body))
if err != nil {
log.Error("export zip write: %v", err)
}
}
// Make sure to check the error on Close.
err := w.Close()
if err != nil {
log.Error("export zip close: %v", err)
}
return b.Bytes()
}
func compileFullExport(app *app, u *User) *ExportUser {
exportUser := &ExportUser{
User: u,
}
colls, err := app.db.GetCollections(u)
if err != nil {
log.Error("unable to fetch collections: %v", err)
}
posts, err := app.db.GetAnonymousPosts(u)
if err != nil {
log.Error("unable to fetch anon posts: %v", err)
}
exportUser.AnonymousPosts = *posts
var collObjs []CollectionObj
for _, c := range *colls {
co := &CollectionObj{Collection: c}
co.Posts, err = app.db.GetPosts(&c, 0, true, false)
if err != nil {
log.Error("unable to get collection posts: %v", err)
}
app.db.GetPostsCount(co, true)
collObjs = append(collObjs, *co)
}
exportUser.Collections = &collObjs
return exportUser
}

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