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// Copyright (c) 2015 Spinpunch, Inc. All Rights Reserved.
// See License.txt for license information.
package model
import (
"encoding/json"
"io"
)
const (
PREFERENCE_CATEGORY_DIRECT_CHANNEL_SHOW = "direct_channel_show"
PREFERENCE_CATEGORY_TEST = "test" // do not use, just for testing uniqueness while there's only one real category
PREFERENCE_NAME_TEST = "test" // do not use, just for testing while there's no constant name
)
type Preference struct {
UserId string `json:"user_id"`
Category string `json:"category"`
Name string `json:"name"`
Value string `json:"value"`
}
func (o *Preference) ToJson() 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
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)
}
if len(o.Category) == 0 || len(o.Category) > 32 || !IsPreferenceCategoryValid(o.Category) {
return NewAppError("Preference.IsValid", "Invalid category", "category="+o.Category)
}
// name can either be a valid constant or an id
if len(o.Name) == 0 || len(o.Name) > 32 || !(len(o.Name) == 26 || IsPreferenceNameValid(o.Name)) {
return NewAppError("Preference.IsValid", "Invalid name", "name="+o.Name)
}
if len(o.Value) > 128 {
return NewAppError("Preference.IsValid", "Value is too long", "value="+o.Value)
}
return nil
}
func IsPreferenceCategoryValid(category string) bool {
return category == PREFERENCE_CATEGORY_DIRECT_CHANNEL_SHOW || category == PREFERENCE_CATEGORY_TEST
}
func IsPreferenceNameValid(name string) bool {
return name == PREFERENCE_NAME_TEST
}
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