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channel.go
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/
channel.go
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package keeper
import (
"github.com/cosmos/cosmos-sdk/store/prefix"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/dungtt-astra/astra/v3/x/channel/types"
)
// SetChannel set a specific channel in the store from its index
func (k Keeper) SetChannel(ctx sdk.Context, channel types.Channel) {
store := prefix.NewStore(ctx.KVStore(k.storeKey), types.KeyPrefix(types.ChannelKeyPrefix))
b := k.cdc.MustMarshal(&channel)
store.Set(types.ChannelKey(
channel.Index,
), b)
}
// GetChannel returns a channel from its index
func (k Keeper) GetChannel(
ctx sdk.Context,
index string,
) (val types.Channel, found bool) {
store := prefix.NewStore(ctx.KVStore(k.storeKey), types.KeyPrefix(types.ChannelKeyPrefix))
b := store.Get(types.ChannelKey(
index,
))
if b == nil {
return val, false
}
k.cdc.MustUnmarshal(b, &val)
return val, true
}
// RemoveChannel removes a channel from the store
func (k Keeper) RemoveChannel(
ctx sdk.Context,
index string,
) {
store := prefix.NewStore(ctx.KVStore(k.storeKey), types.KeyPrefix(types.ChannelKeyPrefix))
store.Delete(types.ChannelKey(
index,
))
}
// GetAllChannel returns all channel
func (k Keeper) GetAllChannel(ctx sdk.Context) (list []types.Channel) {
store := prefix.NewStore(ctx.KVStore(k.storeKey), types.KeyPrefix(types.ChannelKeyPrefix))
iterator := sdk.KVStorePrefixIterator(store, []byte{})
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
var val types.Channel
k.cdc.MustUnmarshal(iterator.Value(), &val)
list = append(list, val)
}
return
}