add comments for the "string" type

Author: wxiaoguang

services/forms/repo_form.go

@@ -647,12 +647,16 @@ type UpdateAllowEditsForm struct {
 
 // NewReleaseForm form for creating release
 type NewReleaseForm struct {
-	TagName    string `binding:"Required;GitRefName;MaxSize(255)"`
-	Target     string `form:"tag_target" binding:"Required;MaxSize(255)"`
-	Title      string `binding:"MaxSize(255)"`
-	Content    string
-	Draft      string
-	TagOnly    string
+	TagName string `binding:"Required;GitRefName;MaxSize(255)"`
+	Target  string `form:"tag_target" binding:"Required;MaxSize(255)"`
+	Title   string `binding:"MaxSize(255)"`
+	Content string
+	Draft   string
+
+	// TODO: ideally it should be a bool. The "string" type here was used to accept the value of `<input type="submit" value="Tag Only">`.
+	// As now, the tmpl code had been refactor to `<button value="1">Tag Only</button>`, so the type could be safely refactored to "bool" in the future.
+	TagOnly string
+
 	Prerelease bool
 	AddTagMsg  bool
 	Files      []string