/
grid_redis.go
84 lines (65 loc) · 1.46 KB
/
grid_redis.go
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package models
import (
"strings"
"github.com/gomodule/redigo/redis"
)
const (
gridKeyPrefix = "grid:"
)
// RedisGridRepository type.
type RedisGridRepository struct {
RedisPool *redis.Pool
RedisKeyPrefix string
}
// CreateOrUpdate function.
func (rgr *RedisGridRepository) CreateOrUpdate(grid *Grid) error {
conn := rgr.RedisPool.Get()
defer conn.Close()
_, err := conn.Do(
"HSET", redis.Args{}.Add(rgr.RedisKeyPrefix+gridKeyPrefix+strings.ToLower(grid.Name)).AddFlat(grid)...,
)
if err != nil {
return err
}
return nil
}
// Find function.
func (rgr *RedisGridRepository) Find(name string) (*Grid, error) {
conn := rgr.RedisPool.Get()
defer conn.Close()
values, err := redis.Values(conn.Do("HGETALL", rgr.RedisKeyPrefix+gridKeyPrefix+strings.ToLower(name)))
if err != nil {
return nil, err
}
if len(values) == 0 {
return nil, ErrNoRecord
}
var grid Grid
err = redis.ScanStruct(values, &grid)
if err != nil {
return nil, err
}
return &grid, nil
}
// Delete function.
func (rgr *RedisGridRepository) Delete(name string) error {
conn := rgr.RedisPool.Get()
defer conn.Close()
err := conn.Send("MULTI")
if err != nil {
return err
}
err = conn.Send("DEL", rgr.RedisKeyPrefix+explorationKeyPrefix+strings.ToLower(name))
if err != nil {
return err
}
err = conn.Send("DEL", rgr.RedisKeyPrefix+gridKeyPrefix+strings.ToLower(name))
if err != nil {
return err
}
_, err = conn.Do("EXEC")
if err != nil {
return err
}
return nil
}