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Add limit parameter and pagination for files

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This commit is contained in:
cschiano 2016-07-20 10:46:28 +02:00
parent c63cebaee1
commit af905a3ff7
2 changed files with 37 additions and 28 deletions
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59
weed/server/filer_server_handlers_read.go
View file

@ -10,59 +10,66 @@ import (
"github.com/syndtr/goleveldb/leveldb" "github.com/syndtr/goleveldb/leveldb"
) )
// listDirectoryHandler lists directories and folers under a directory func (fs *FilerServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request, isGetMethod bool) {
// files are sorted by name and paginated via "lastFileName" and "limit".
// sub directories are listed on the first page, when "lastFileName"
// is empty.
func (fs *FilerServer) listDirectoryHandler(w http.ResponseWriter, r *http.Request) {
if !strings.HasSuffix(r.URL.Path, "/") { if !strings.HasSuffix(r.URL.Path, "/") {
return return
} }
dirlist, err := fs.filer.ListDirectories(r.URL.Path)
if err == leveldb.ErrNotFound { if fs.disableDirListing {
glog.V(3).Infoln("Directory Not Found in db", r.URL.Path) w.WriteHeader(http.StatusMethodNotAllowed)
w.WriteHeader(http.StatusNotFound)
return return
} }
m := make(map[string]interface{})
m["Directory"] = r.URL.Path
lastFileName := r.FormValue("lastFileName")
if lastFileName == "" {
m["Subdirectories"] = dirlist
}
limit, limit_err := strconv.Atoi(r.FormValue("limit")) limit, limit_err := strconv.Atoi(r.FormValue("limit"))
if limit_err != nil { if limit_err != nil {
limit = 100 limit = 100
} }
m["Files"], _ = fs.filer.ListFiles(r.URL.Path, lastFileName, limit)
writeJsonQuiet(w, r, http.StatusOK, m)
}
func (fs *FilerServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request, isGetMethod bool) { lastFileName := r.FormValue("lastFileName")
fileLimit := 100 files, err := fs.filer.ListFiles(r.URL.Path, lastFileName, limit)
files, err := fs.filer.ListFiles(r.URL.Path, "", fileLimit)
if err == leveldb.ErrNotFound { if err == leveldb.ErrNotFound {
glog.V(0).Infof("Error %s", err) glog.V(0).Infof("Error %s", err)
w.WriteHeader(http.StatusNotFound)
return return
} }
directories, err2 := fs.filer.ListDirectories(r.URL.Path) directories, err2 := fs.filer.ListDirectories(r.URL.Path)
if err2 == leveldb.ErrNotFound { if err2 == leveldb.ErrNotFound {
glog.V(0).Infof("Error %s", err) glog.V(0).Infof("Error %s", err)
w.WriteHeader(http.StatusNotFound)
return return
} }
shouldDisplayLoadMore := len(files) > 0
lastFileName = ""
if len(files) > 0 {
lastFileName = files[len(files)-1].Name
files2, err3 := fs.filer.ListFiles(r.URL.Path, lastFileName, limit)
if err3 == leveldb.ErrNotFound {
glog.V(0).Infof("Error %s", err)
w.WriteHeader(http.StatusNotFound)
return
}
shouldDisplayLoadMore = len(files2) > 0
}
args := struct { args := struct {
Path string Path string
Files interface{} Files interface{}
Directories interface{} Directories interface{}
NotAllFilesDisplayed bool Limit int
LastFileName string
ShouldDisplayLoadMore bool
}{ }{
r.URL.Path, r.URL.Path,
files, files,
directories, directories,
len(files) == fileLimit, limit,
lastFileName,
shouldDisplayLoadMore,
} }
ui.StatusTpl.Execute(w, args) ui.StatusTpl.Execute(w, args)
} }

6
weed/server/filer_ui/templates.go
View file

@ -42,9 +42,11 @@ var StatusTpl = template.Must(template.New("status").Parse(`<!DOCTYPE html>
</ul> </ul>
</div> </div>
{{if .NotAllFilesDisplayed}} {{if .ShouldDisplayLoadMore}}
<div class="row"> <div class="row">
Not all files are displayed. <a href= {{ print .Path "?limit=" .Limit "&lastFileName=" .LastFileName}} >
Load more
</a>
</div> </div>
{{end}} {{end}}
</div> </div>