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// Copyright (c) 2015 Spinpunch, Inc. All Rights Reserved.
// See License.txt for license information.
package store
import (
"github.com/go-gorp/gorp"
"github.com/mattermost/platform/model"
"github.com/mattermost/platform/utils"
)
type SqlPreferenceStore struct {
*SqlStore
}
func NewSqlPreferenceStore(sqlStore *SqlStore) PreferenceStore {
s := &SqlPreferenceStore{sqlStore}
for _, db := range sqlStore.GetAllConns() {
table := db.AddTableWithName(model.Preference{}, "Preferences").SetKeys(false, "UserId", "Category", "Name")
table.ColMap("UserId").SetMaxSize(26)
table.ColMap("Category").SetMaxSize(32)
table.ColMap("Name").SetMaxSize(32)
table.ColMap("Value").SetMaxSize(128)
}
return s
}
func (s SqlPreferenceStore) UpgradeSchemaIfNeeded() {
}
func (s SqlPreferenceStore) CreateIndexesIfNotExists() {
s.CreateIndexIfNotExists("idx_preferences_user_id", "Preferences", "UserId")
s.CreateIndexIfNotExists("idx_preferences_category", "Preferences", "Category")
s.CreateIndexIfNotExists("idx_preferences_name", "Preferences", "Name")
}
func (s SqlPreferenceStore) Save(preferences *model.Preferences) StoreChannel {
storeChannel := make(StoreChannel)
go func() {
result := StoreResult{}
// wrap in a transaction so that if one fails, everything fails
transaction, err := s.GetMaster().Begin()
if err != nil {
result.Err = model.NewAppError("SqlPreferenceStore.Save", "Unable to open transaction to save preferences", err.Error())
} else {
for _, preference := range *preferences {
if upsertResult := s.save(transaction, &preference); upsertResult.Err != nil {
result = upsertResult
break
}
}
if result.Err == nil {
if err := transaction.Commit(); err != nil {
// don't need to rollback here since the transaction is already closed
result.Err = model.NewAppError("SqlPreferenceStore.Save", "Unable to commit transaction to save preferences", err.Error())
} else {
result.Data = len(*preferences)
}
} else {
if err := transaction.Rollback(); err != nil {
result.Err = model.NewAppError("SqlPreferenceStore.Save", "Unable to rollback transaction to save preferences", err.Error())
}
}
}
storeChannel <- result
close(storeChannel)
}()
return storeChannel
}
func (s SqlPreferenceStore) save(transaction *gorp.Transaction, preference *model.Preference) StoreResult {
result := StoreResult{}
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.NewAppError("SqlPreferenceStore.save", "We encountered an error while updating preferences", 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.NewAppError("SqlPreferenceStore.save", "We encountered an error while updating preferences", err.Error())
return result
}
if count == 1 {
s.update(transaction, preference)
} else {
s.insert(transaction, preference)
}
} else {
result.Err = model.NewAppError("SqlPreferenceStore.save", "We encountered an error while updating preferences",
"Failed to update preference because of missing driver")
}
return result
}
func (s SqlPreferenceStore) insert(transaction *gorp.Transaction, preference *model.Preference) StoreResult {
result := StoreResult{}
if err := transaction.Insert(preference); err != nil {
if IsUniqueConstraintError(err.Error(), "UserId", "preferences_pkey") {
result.Err = model.NewAppError("SqlPreferenceStore.insert", "A preference with that user id, category, and name already exists",
"user_id="+preference.UserId+", category="+preference.Category+", name="+preference.Name+", "+err.Error())
} else {
result.Err = model.NewAppError("SqlPreferenceStore.insert", "We couldn't save the preference",
"user_id="+preference.UserId+", category="+preference.Category+", name="+preference.Name+", "+err.Error())
}
}
return result
}
func (s SqlPreferenceStore) update(transaction *gorp.Transaction, preference *model.Preference) StoreResult {
result := StoreResult{}
if _, err := transaction.Update(preference); err != nil {
result.Err = model.NewAppError("SqlPreferenceStore.update", "We couldn't update the preference",
"user_id="+preference.UserId+", category="+preference.Category+", name="+preference.Name+", "+err.Error())
}
return result
}
func (s SqlPreferenceStore) Get(userId string, category string, name string) StoreChannel {
storeChannel := make(StoreChannel)
go func() {
result := StoreResult{}
var preference model.Preference
if err := s.GetReplica().SelectOne(&preference,
`SELECT
*
FROM
Preferences
WHERE
UserId = :UserId
AND Category = :Category
AND Name = :Name`, map[string]interface{}{"UserId": userId, "Category": category, "Name": name}); err != nil {
result.Err = model.NewAppError("SqlPreferenceStore.Get", "We encountered an error while finding preferences", err.Error())
} else {
result.Data = preference
}
storeChannel <- result
close(storeChannel)
}()
return storeChannel
}
func (s SqlPreferenceStore) GetCategory(userId string, category string) StoreChannel {
storeChannel := make(StoreChannel)
go func() {
result := StoreResult{}
var preferences model.Preferences
if _, err := s.GetReplica().Select(&preferences,
`SELECT
*
FROM
Preferences
WHERE
UserId = :UserId
AND Category = :Category`, map[string]interface{}{"UserId": userId, "Category": category}); err != nil {
result.Err = model.NewAppError("SqlPreferenceStore.GetCategory", "We encountered an error while finding preferences", err.Error())
} else {
result.Data = preferences
}
storeChannel <- result
close(storeChannel)
}()
return storeChannel
}
func (s SqlPreferenceStore) GetAll(userId string) StoreChannel {
storeChannel := make(StoreChannel)
go func() {
result := StoreResult{}
var preferences model.Preferences
if _, err := s.GetReplica().Select(&preferences,
`SELECT
*
FROM
Preferences
WHERE
UserId = :UserId`, map[string]interface{}{"UserId": userId}); err != nil {
result.Err = model.NewAppError("SqlPreferenceStore.GetAll", "We encountered an error while finding preferences", err.Error())
} else {
result.Data = preferences
}
storeChannel <- result
close(storeChannel)
}()
return storeChannel
}
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