move index mapping to const variables

pkg/index/index.go

@@ -14,9 +14,13 @@ import (
 	"time"
 )
 
-const maxSearchResult = 101
-
-const docType = "document"
+const (
+	maxSearchResult = 101
+	docType         = "document"
+	textField       = "text"
+	tagsField       = "tags"
+	createdField    = "created"
+)
 
 type Document struct {
 	Text    string    `json:"text"`
@@ -41,7 +45,6 @@ func NewIndex(path string) (i *Index, err error) {
 			err = errors.New("index: " + err.Error())
 			return
 		}
-		//m := bleve.NewIndexMapping()
 		bi, err = bleve.New(path, m)
 		if err != nil {
 			err = errors.New("index: " + err.Error())
@@ -88,13 +91,10 @@ func (i *Index) Get(id string) (doc *Document, err error) {
 	for _, f := range d.Fields {
 		n := f.Name()
 		switch n {
-		case "text":
+		case textField:
 			text := document.NewTextField(n, f.ArrayPositions(), f.Value())
 			doc.Text = string(text.Value())
-		//case "tags":
-		//	tags := document.NewTextField(n, f.ArrayPositions(), f.Value())
-		//	doc.Tags = append(doc.Tags, string(tags.Value()))
-		case "created":
+		case createdField:
 			created := document.NewDateTimeFieldFromBytes(n, f.ArrayPositions(), f.Value())
 			doc.Created, _ = created.DateTime()
 		}
@@ -124,14 +124,14 @@ func (i *Index) Search(search string) (results core.Results, err error) {
 			continue
 		}
 		for fragField, frags := range hit.Fragments {
-			if fragField == "tags" {
+			if fragField == tagsField {
 				var t string
 				for _, f := range frags {
 					t += f
 				}
 				r.Tags = strings.ReplaceAll(strings.ReplaceAll(t, "<mark>", ""), "</mark>", "")
 			}
-			if fragField == "text" || fragField == "created" {
+			if fragField == textField || fragField == createdField {
 				for _, f := range frags {
 					r.HTML += template.HTML(f)
 				}