本文整理汇总了Golang中github.com/mattermost/platform/model.Preference.PreUpdate方法的典型用法代码示例。如果您正苦于以下问题：Golang Preference.PreUpdate方法的具体用法？Golang Preference.PreUpdate怎么用？Golang Preference.PreUpdate使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类github.com/mattermost/platform/model.Preference的用法示例。
在下文中一共展示了Preference.PreUpdate方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: save
func (s SqlPreferenceStore) save(transaction *gorp.Transaction, preference *model.Preference) StoreResult {
result := StoreResult{}
preference.PreUpdate()
if result.Err = preference.IsValid(); result.Err != nil {
return result
}
params := map[string]interface{}{
"UserId": preference.UserId,
"Category": preference.Category,
"Name": preference.Name,
"Value": preference.Value,
}
if utils.Cfg.SqlSettings.DriverName == model.DATABASE_DRIVER_MYSQL {
if _, err := transaction.Exec(
`INSERT INTO
Preferences
(UserId, Category, Name, Value)
VALUES
(:UserId, :Category, :Name, :Value)
ON DUPLICATE KEY UPDATE
Value = :Value`, params); err != nil {
result.Err = model.NewLocAppError("SqlPreferenceStore.save", "store.sql_preference.save.updating.app_error", nil, err.Error())
}
} else if utils.Cfg.SqlSettings.DriverName == model.DATABASE_DRIVER_POSTGRES {
// postgres has no way to upsert values until version 9.5 and trying inserting and then updating causes transactions to abort
count, err := transaction.SelectInt(
`SELECT
count(0)
FROM
Preferences
WHERE
UserId = :UserId
AND Category = :Category
AND Name = :Name`, params)
if err != nil {
result.Err = model.NewLocAppError("SqlPreferenceStore.save", "store.sql_preference.save.updating.app_error", nil, err.Error())
return result
}
if count == 1 {
s.update(transaction, preference)
} else {
s.insert(transaction, preference)
}
} else {
result.Err = model.NewLocAppError("SqlPreferenceStore.save", "store.sql_preference.save.missing_driver.app_error", nil,
"Failed to update preference because of missing driver")
}
return result
}