Added api to get and set preferences

model/preference.go

@@ -32,6 +32,15 @@ func (o *Preference) ToJson() string {
 	}
 }
 
+func PreferenceListToJson(o []*Preference) string {
+	b, err := json.Marshal(o)
+	if err != nil {
+		return ""
+	} else {
+		return string(b)
+	}
+}
+
 func PreferenceFromJson(data io.Reader) *Preference {
 	decoder := json.NewDecoder(data)
 	var o Preference
@@ -43,6 +52,17 @@ func PreferenceFromJson(data io.Reader) *Preference {
 	}
 }
 
+func PreferenceListFromJson(data io.Reader) []*Preference {
+	decoder := json.NewDecoder(data)
+	var o []*Preference
+	err := decoder.Decode(&o)
+	if err == nil {
+		return o
+	} else {
+		return nil
+	}
+}
+
 func (o *Preference) IsValid() *AppError {
 	if len(o.UserId) != 26 {
 		return NewAppError("Preference.IsValid", "Invalid user id", "user_id="+o.UserId)