forked from vikunja/vikunja
konrad
d56a611be7
Fix lint Add docs for keyvalue config options Use keyvalue store to cache unsplash photo results Cleanup Use keyvalue store for upload avatar Use keyvalue store for initials avatar Fix initializing metrics Use keyvalue for metrics Add IncryBy and DecrBy methods to increase or decrease a value Fix lint Return custom error if a key does not exist Init keyvalue storage Follow the keyvalue storage setting for things like cache and other Add docs Add configuration of the storage backend Add redis keyvalue storage implementation Add doc comments Add methods to use storage through the package itself Add memory implementation for keyvalue store Co-authored-by: kolaente <k@knt.li> Reviewed-on: vikunja/api#674 Co-Authored-By: konrad <konrad@kola-entertainments.de> Co-Committed-By: konrad <konrad@kola-entertainments.de>
79 lines
2.1 KiB
Go
79 lines
2.1 KiB
Go
// Copyright 2020 Vikunja and contriubtors. All rights reserved.
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//
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// This file is part of Vikunja.
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//
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// Vikunja is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Vikunja is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Vikunja. If not, see <https://www.gnu.org/licenses/>.
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package redis
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import (
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e "code.vikunja.io/api/pkg/modules/keyvalue/error"
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"code.vikunja.io/api/pkg/red"
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"encoding/json"
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"github.com/go-redis/redis/v7"
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)
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// Storage is a redis implementation of a keyvalue storage
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type Storage struct {
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client *redis.Client
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}
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// NewStorage creates a new redis key value storage
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func NewStorage() *Storage {
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red.InitRedis()
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return &Storage{
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client: red.GetRedis(),
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}
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}
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// Put puts a value into redis
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func (s *Storage) Put(key string, value interface{}) (err error) {
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v, err := json.Marshal(value)
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if err != nil {
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return err
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}
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return s.client.Set(key, v, 0).Err()
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}
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// Get retrieves a saved value from redis
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func (s *Storage) Get(key string) (value interface{}, err error) {
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b, err := s.client.Get(key).Bytes()
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if err != nil {
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if err == redis.Nil {
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return nil, &e.ErrValueNotFoundForKey{Key: key}
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}
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return nil, err
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}
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err = json.Unmarshal(b, value)
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return
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}
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// Del removed a value from redis
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func (s *Storage) Del(key string) (err error) {
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return s.client.Del(key).Err()
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}
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// IncrBy increases the value saved at key by the amount provided through update
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func (s *Storage) IncrBy(key string, update int64) (err error) {
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return s.client.IncrBy(key, update).Err()
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}
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// DecrBy decreases the value saved at key by the amount provided through update
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func (s *Storage) DecrBy(key string, update int64) (err error) {
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return s.client.DecrBy(key, update).Err()
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}
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