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issuer.go
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issuer.go
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package keeper
import (
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/allinbits/cosmos-cash/x/issuer/types"
)
func (k Keeper) SetIssuer(ctx sdk.Context, issuer types.Issuer) {
k.Set(ctx, []byte(issuer.Address), types.IssuerKey, issuer, k.MarshalIssuer)
k.Set(ctx, []byte(issuer.Token), types.TokenKey, issuer, k.MarshalIssuer)
}
func (k Keeper) GetIssuer(ctx sdk.Context, key []byte) (types.Issuer, bool) {
val, found := k.Get(ctx, key, types.IssuerKey, k.UnmarshalIssuer)
return val.(types.Issuer), found
}
// GetIssuerByToken retrieve an issuer by it's key
// TODO: this could be improved by only calling Get once in this file
func (k Keeper) GetIssuerByToken(ctx sdk.Context, key []byte) (types.Issuer, bool) {
val, found := k.Get(ctx, key, types.TokenKey, k.UnmarshalIssuer)
return val.(types.Issuer), found
}
func (k Keeper) UnmarshalIssuer(value []byte) (interface{}, bool) {
issuer := types.Issuer{}
err := k.cdc.UnmarshalBinaryBare(value, &issuer)
if err != nil {
return types.Issuer{}, false
}
//if issuer.Fee == nil {
// return types.Issuer{}, false
//}
if issuer.Address == "" {
return types.Issuer{}, false
}
return issuer, true
}
func (k Keeper) MarshalIssuer(value interface{}) []byte {
issuer := value.(types.Issuer)
bytes, _ := k.cdc.MarshalBinaryBare(&issuer)
return bytes
}
func (k Keeper) GetAllIssuersWithCondition(
ctx sdk.Context,
key []byte,
issuerSelector func(issuers types.Issuer) bool,
) (issuers []types.Issuer) {
iterator := k.GetAll(ctx, key)
defer iterator.Close()
for ; iterator.Valid(); iterator.Next() {
issuer, _ := k.UnmarshalIssuer(iterator.Value())
issuerTyped := issuer.(types.Issuer)
if issuerSelector(issuerTyped) {
issuers = append(issuers, issuerTyped)
}
}
return issuers
}
func (k Keeper) GetAllIssuers(ctx sdk.Context) []types.Issuer {
return k.GetAllIssuersWithCondition(
ctx,
types.IssuerKey,
func(did types.Issuer) bool { return true },
)
}