From 31406ebe5a48da20cc37209da700e4c4f1bd13dc Mon Sep 17 00:00:00 2001
From: Konstantin <ihippik@users.noreply.github.com>
Date: Sat, 8 Oct 2016 11:35:26 +0300
Subject: [PATCH] Default values in structure

Swagger default value for golang stucture.

format:
doc:"default(my_defaul_value)"

type MyStruct struct {
	Template string `json:"template" doc:"default(<h1>Hello, {{ name }}! </h1>)"`
	Name string `json:"name"`
	MyNumber int64 `json:"temp"  doc:"default(10)"`
	MyBool bool `json:"bl"  doc:"default(true)"`
	MyFloat float64 `json:"fl"  doc:"default(12.1234)"`
}
---
 g_docs.go | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/g_docs.go b/g_docs.go
index 9d6ffe9..4d9f279 100644
--- a/g_docs.go
+++ b/g_docs.go
@@ -770,6 +770,30 @@ func parseObject(d *ast.Object, k string, m *swagger.Schema, realTypes *[]string
 
 				var tagValues []string
 				stag := reflect.StructTag(strings.Trim(field.Tag.Value, "`"))
+				
+				defaultValue := stag.Get("doc")
+				if defaultValue != ""{
+					r, _ := regexp.Compile(`default\((.*)\)`)
+					if r.MatchString(defaultValue) {
+						res := r.FindStringSubmatch(defaultValue)
+						mp.Default = res[1]
+						switch realType{
+							case "int","int64", "int32", "int16", "int8":
+								mp.Default, _ = strconv.Atoi(res[1])
+							case "bool":
+								mp.Default, _ = strconv.ParseBool(res[1])
+							case "float64":
+								mp.Default, _ = strconv.ParseFloat(res[1], 64)
+							case "float32":
+								mp.Default, _ = strconv.ParseFloat(res[1], 32)
+							default:
+								mp.Default = res[1]
+						}
+					}else{
+						ColorLog("[WARN] Invalid default value: %s\n", defaultValue)
+					}
+				}
+				
 				tag := stag.Get("json")
 
 				if tag != "" {