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sqlcache.go
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sqlcache.go
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package gfcache
import (
"context"
"database/sql"
"github.com/brunowang/gframe/gferr"
)
type (
CacheGetSetFunc func(cache Cache, dest interface{}) error
CacheClearFunc func(cache Cache) error
TransactFunc[T Transaction] func(tx T) error
)
type SqlCache struct {
db SourceDB
cache Cache
}
func NewSqlCache(db SourceDB, cache Cache) *SqlCache {
return &SqlCache{db: db, cache: cache}
}
func (c *SqlCache) Query(ctx context.Context, cacheKey string, dest interface{}, query string, args ...interface{}) error {
if err := c.cache.GetCache(cacheKey, dest); err == nil {
return nil
}
if err := c.db.Query(ctx, dest, query, args...); err != nil {
return err
}
_ = c.cache.SetCache(cacheKey, dest)
return nil
}
func (c *SqlCache) QueryWithFunc(ctx context.Context, getFn, setFn CacheGetSetFunc, dest interface{}, query string, args ...interface{}) error {
if err := getFn(c.cache, dest); err == nil {
return nil
}
if err := c.db.Query(ctx, dest, query, args...); err != nil {
return err
}
_ = setFn(c.cache, dest)
return nil
}
func (c *SqlCache) Execute(ctx context.Context, clearKeys []string, query string, args ...interface{}) (sql.Result, error) {
res, err := c.db.Execute(ctx, query, args...)
if err != nil {
return nil, err
}
var errs gferr.MultiError
for _, clearKey := range clearKeys {
if err := c.cache.DelCache(clearKey); err != nil {
errs = append(errs, err)
}
}
return res, errs.Unwrap()
}
func (c *SqlCache) ExecuteWithFunc(ctx context.Context, clearFn CacheClearFunc, query string, args ...interface{}) (sql.Result, error) {
res, err := c.db.Execute(ctx, query, args...)
if err != nil {
return nil, err
}
return res, clearFn(c.cache)
}
type SqlCacheTx[T Transaction] struct {
SqlCache
db SourceDBTx[T]
}
func NewSqlCacheTx[T Transaction](db SourceDBTx[T], cache Cache) *SqlCacheTx[T] {
return &SqlCacheTx[T]{db: db, SqlCache: SqlCache{db: db.SourceDB(), cache: cache}}
}
func (c *SqlCacheTx[T]) Transact(ctx context.Context, clearFn CacheClearFunc, txFn TransactFunc[T]) error {
if err := c.db.Transact(ctx, func(tx T) error {
return txFn(tx)
}); err != nil {
return err
}
if err := clearFn(c.cache); err != nil {
return err
}
return nil
}