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folder_lookupProvider.go
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/
folder_lookupProvider.go
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package service
import (
"github.com/EmissarySocial/emissary/model"
"github.com/benpate/derp"
"github.com/benpate/form"
"go.mongodb.org/mongo-driver/bson/primitive"
)
type FolderLookupProvider struct {
folderService *Folder
userID primitive.ObjectID
}
func NewFolderLookupProvider(folderService *Folder, userID primitive.ObjectID) FolderLookupProvider {
return FolderLookupProvider{
folderService: folderService,
userID: userID,
}
}
func (service FolderLookupProvider) Group(name string) form.LookupGroup {
return service
}
func (service FolderLookupProvider) Get() []form.LookupCode {
if service.userID.IsZero() {
return make([]form.LookupCode, 0)
}
folders, _ := service.folderService.QueryByUserID(service.userID)
result := make([]form.LookupCode, 0, len(folders))
for _, folder := range folders {
result = append(result, folder.LookupCode())
}
return result
}
func (service FolderLookupProvider) Add(name string) (string, error) {
// RULE: Must have a valid UserID to add a Folder
if service.userID.IsZero() {
return "", derp.NewInternalError("service.FolderLookupProvider.Add", "Cannot add folder to anonymous user")
}
folder := model.NewFolder()
// RULE: Search for existing folder with the same name
err := service.folderService.LoadByLabel(service.userID, name, &folder)
if err == nil {
return folder.ID(), nil
}
if derp.NotFound(err) {
folder.Label = name
folder.UserID = service.userID
if err := service.folderService.Save(&folder, "created"); err != nil {
return "", derp.Wrap(err, "service.FolderLookupProvider.Add", "Error saving folder", name)
}
return folder.ID(), nil
}
return "", derp.Wrap(err, "service.FolderLookupProvider.Add", "Error searching for existing folder", name)
}