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query_utils.go
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/
query_utils.go
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package keeper
import (
"context"
storetypes "cosmossdk.io/store/types"
"github.com/axiome-pro/axm-node/x/staking/types"
sdk "github.com/cosmos/cosmos-sdk/types"
)
// GetDelegatorValidators returns all validators that a delegator is bonded to. If maxRetrieve is supplied, the respective amount will be returned.
func (k Keeper) GetDelegatorValidators(
ctx context.Context, delegatorAddr sdk.AccAddress, maxRetrieve uint32,
) (types.Validators, error) {
validators := make([]types.Validator, maxRetrieve)
store := k.storeService.OpenKVStore(ctx)
delegatorPrefixKey := types.GetDelegationsKey(delegatorAddr)
iterator, err := store.Iterator(delegatorPrefixKey, storetypes.PrefixEndBytes(delegatorPrefixKey)) // smallest to largest
if err != nil {
return types.Validators{}, err
}
defer iterator.Close()
i := 0
for ; iterator.Valid() && i < int(maxRetrieve); iterator.Next() {
delegation := types.MustUnmarshalDelegation(k.cdc, iterator.Value())
valAddr, err := k.validatorAddressCodec.StringToBytes(delegation.GetValidatorAddr())
if err != nil {
return types.Validators{}, err
}
validator, err := k.GetValidator(ctx, valAddr)
if err != nil {
return types.Validators{}, err
}
validators[i] = validator
i++
}
if err != nil {
return types.Validators{}, err
}
return types.Validators{Validators: validators[:i], ValidatorCodec: k.validatorAddressCodec}, nil // trim
}
// GetDelegatorValidator returns a validator that a delegator is bonded to
func (k Keeper) GetDelegatorValidator(
ctx context.Context, delegatorAddr sdk.AccAddress, validatorAddr sdk.ValAddress,
) (validator types.Validator, err error) {
delegation, err := k.GetDelegation(ctx, delegatorAddr, validatorAddr)
if err != nil {
return validator, err
}
valAddr, err := k.validatorAddressCodec.StringToBytes(delegation.GetValidatorAddr())
if err != nil {
return validator, err
}
return k.GetValidator(ctx, valAddr)
}
// GetAllDelegatorDelegations returns all delegations of a delegator
func (k Keeper) GetAllDelegatorDelegations(ctx context.Context, delegator sdk.AccAddress) ([]types.Delegation, error) {
delegations := make([]types.Delegation, 0)
store := k.storeService.OpenKVStore(ctx)
delegatorPrefixKey := types.GetDelegationsKey(delegator)
iterator, err := store.Iterator(delegatorPrefixKey, storetypes.PrefixEndBytes(delegatorPrefixKey)) // smallest to largest
if err != nil {
return nil, err
}
defer iterator.Close()
for i := 0; iterator.Valid(); iterator.Next() {
delegation, err := types.UnmarshalDelegation(k.cdc, iterator.Value())
if err != nil {
return nil, err
}
delegations = append(delegations, delegation)
i++
}
return delegations, nil
}
// GetAllUnbondingDelegations returns all unbonding-delegations of a delegator
func (k Keeper) GetAllUnbondingDelegations(ctx context.Context, delegator sdk.AccAddress) ([]types.UnbondingDelegation, error) {
unbondingDelegations := make([]types.UnbondingDelegation, 0)
store := k.storeService.OpenKVStore(ctx)
delegatorPrefixKey := types.GetUBDsKey(delegator)
iterator, err := store.Iterator(delegatorPrefixKey, storetypes.PrefixEndBytes(delegatorPrefixKey)) // smallest to largest
if err != nil {
return nil, err
}
defer iterator.Close()
for i := 0; iterator.Valid(); iterator.Next() {
unbondingDelegation, err := types.UnmarshalUBD(k.cdc, iterator.Value())
if err != nil {
return nil, err
}
unbondingDelegations = append(unbondingDelegations, unbondingDelegation)
i++
}
return unbondingDelegations, nil
}
// GetAllRedelegations returns all redelegations of a delegator
func (k Keeper) GetAllRedelegations(
ctx context.Context, delegator sdk.AccAddress, srcValAddress, dstValAddress sdk.ValAddress,
) ([]types.Redelegation, error) {
store := k.storeService.OpenKVStore(ctx)
delegatorPrefixKey := types.GetREDsKey(delegator)
iterator, err := store.Iterator(delegatorPrefixKey, storetypes.PrefixEndBytes(delegatorPrefixKey)) // smallest to largest
if err != nil {
return nil, err
}
defer iterator.Close()
srcValFilter := !(srcValAddress.Empty())
dstValFilter := !(dstValAddress.Empty())
redelegations := []types.Redelegation{}
for ; iterator.Valid(); iterator.Next() {
redelegation := types.MustUnmarshalRED(k.cdc, iterator.Value())
valSrcAddr, err := k.validatorAddressCodec.StringToBytes(redelegation.ValidatorSrcAddress)
if err != nil {
return nil, err
}
valDstAddr, err := k.validatorAddressCodec.StringToBytes(redelegation.ValidatorDstAddress)
if err != nil {
return nil, err
}
if srcValFilter && !(srcValAddress.Equals(sdk.ValAddress(valSrcAddr))) {
continue
}
if dstValFilter && !(dstValAddress.Equals(sdk.ValAddress(valDstAddr))) {
continue
}
redelegations = append(redelegations, redelegation)
}
return redelegations, nil
}