✨ improve the functions related to commenting on images

config/conf_mongodb.go

@@ -0,0 +1,18 @@
+package config
+
+import "strconv"
+
+type MongoDB struct {
+	Host        string `yaml:"host"`
+	Port        int    `yaml:"port"`
+	AuthSource  string `yaml:"auth-source"`
+	DB          string `yaml:"db"`
+	User        string `yaml:"user"`
+	Password    string `yaml:"password"`
+	MaxOpenConn int    `yaml:"max-open-conn"`
+	MaxIdleConn int    `yaml:"max-idle-conn"`
+}
+
+func (m *MongoDB) MongoDsn() string {
+	return "mongodb://" + m.Host + ":" + strconv.Itoa(m.Port)
+}