blockchain/query/transactions.go

   1 package query
   2
   3 import (
   4         "github.com/vapor/blockchain/query/filter"
   5         "github.com/vapor/errors"
   6 )
   7
   8 var filterTable = filter.Table{
   9         Name:  "annotated_txs",
  10         Alias: "txs",
  11         Columns: map[string]*filter.Column{
  12                 "asset_id":           {Name: "assetid", Type: filter.String},
  13                 "amount_lower_limit": {Name: "amountlower", Type: filter.Integer},
  14                 "amount_upper_limit": {Name: "amountupper", Type: filter.Integer},
  15                 "trans_type":         {Name: "transtype", Type: filter.String},
  16         },
  17 }
  18
  19 var (
  20         //ErrBadAfter means malformed pagination parameter.
  21         ErrBadAfter = errors.New("malformed pagination parameter after")
  22         //ErrParameterCountMismatch means wrong number of parameters to query.
  23         ErrParameterCountMismatch = errors.New("wrong number of parameters to query")
  24 )
  25
  26 //ValidateTransactionFilter verify txfeed filter validity.
  27 func ValidateTransactionFilter(filt string) error {
  28         _, err := filter.Parse(filt, &filterTable, nil)
  29         return err
  30 }