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history.go
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history.go
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package keeper
import (
"github.com/cosmos/cosmos-sdk/store/prefix"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/elys-network/elys/x/burner/types"
)
// SetHistory set a specific history in the store from its index
func (k Keeper) SetHistory(ctx sdk.Context, history types.History) {
store := prefix.NewStore(ctx.KVStore(k.storeKey), types.KeyPrefix(types.HistoryKeyPrefix))
b := k.cdc.MustMarshal(&history)
store.Set(types.HistoryKey(
history.Timestamp,
history.Denom,
), b)
}
// GetHistory returns a history from its index
func (k Keeper) GetHistory(
ctx sdk.Context,
timestamp string,
denom string,
) (val types.History, found bool) {
store := prefix.NewStore(ctx.KVStore(k.storeKey), types.KeyPrefix(types.HistoryKeyPrefix))
b := store.Get(types.HistoryKey(
timestamp,
denom,
))
if b == nil {
return val, false
}
k.cdc.MustUnmarshal(b, &val)
return val, true
}
// RemoveHistory removes a history from the store
func (k Keeper) RemoveHistory(
ctx sdk.Context,
timestamp string,
denom string,
) {
store := prefix.NewStore(ctx.KVStore(k.storeKey), types.KeyPrefix(types.HistoryKeyPrefix))
store.Delete(types.HistoryKey(
timestamp,
denom,
))
}
// GetAllHistory returns all history
func (k Keeper) GetAllHistory(ctx sdk.Context) (list []types.History) {
store := prefix.NewStore(ctx.KVStore(k.storeKey), types.KeyPrefix(types.HistoryKeyPrefix))
iterator := sdk.KVStorePrefixIterator(store, []byte{})
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
var val types.History
k.cdc.MustUnmarshal(iterator.Value(), &val)
list = append(list, val)
}
return
}