gf/os/gsession/gsession_storage.go

61 lines
2.4 KiB
Go

// Copyright 2019 gf Author(https://github.com/gogf/gf). All Rights Reserved.
//
// This Source Code Form is subject to the terms of the MIT License.
// If a copy of the MIT was not distributed with this file,
// You can obtain one at https://github.com/gogf/gf.
package gsession
import (
"github.com/gogf/gf/container/gmap"
"time"
)
type Storage interface {
// New creates a custom session id.
// This function can be used for custom session creation.
New(ttl time.Duration) (id string)
// Get retrieves session value with given key.
// It returns nil if the key does not exist in the session.
Get(id string, key string) interface{}
// GetMap retrieves all key-value pairs as map from storage.
GetMap(id string) map[string]interface{}
// GetSize retrieves the size of key-value pairs from storage.
GetSize(id string) int
// Set sets key-value session pair to the storage.
// The parameter <ttl> specifies the TTL for the session id (not for the key-value pair).
Set(id string, key string, value interface{}, ttl time.Duration) error
// SetMap batch sets key-value session pairs with map to the storage.
// The parameter <ttl> specifies the TTL for the session id(not for the key-value pair).
SetMap(id string, data map[string]interface{}, ttl time.Duration) error
// Remove deletes key with its value from storage.
Remove(id string, key string) error
// RemoveAll deletes all key-value pairs from storage.
RemoveAll(id string) error
// GetSession returns the session data as *gmap.StrAnyMap for given session id from storage.
//
// The parameter <ttl> specifies the TTL for this session, and it returns nil if the TTL is exceeded.
// The parameter <data> is the current old session data stored in memory,
// and for some storage it might be nil if memory storage is disabled.
//
// This function is called ever when session starts.
GetSession(id string, ttl time.Duration, data *gmap.StrAnyMap) (*gmap.StrAnyMap, error)
// SetSession updates the data for specified session id.
// This function is called ever after session, which is changed dirty, is closed.
// This copy all session data map from memory to storage.
SetSession(id string, data *gmap.StrAnyMap, ttl time.Duration) error
// UpdateTTL updates the TTL for specified session id.
// This function is called ever after session, which is not dirty, is closed.
UpdateTTL(id string, ttl time.Duration) error
}