code.vegaprotocol.io/vega@v0.79.0/blockexplorer/store/utils.go (about)

     1  // Copyright (C) 2023 Gobalsky Labs Limited
     2  //
     3  // This program is free software: you can redistribute it and/or modify
     4  // it under the terms of the GNU Affero General Public License as
     5  // published by the Free Software Foundation, either version 3 of the
     6  // License, or (at your option) any later version.
     7  //
     8  // This program is distributed in the hope that it will be useful,
     9  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    10  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    11  // GNU Affero General Public License for more details.
    12  //
    13  // You should have received a copy of the GNU Affero General Public License
    14  // along with this program.  If not, see <http://www.gnu.org/licenses/>.
    15  
    16  package store
    17  
    18  import "strconv"
    19  
    20  // A handy little helper function for building queries. Appends 'value'
    21  // to the 'args' slice and returns a string '$N' referring to the index
    22  // of the value in args. For example:
    23  //
    24  //		var args []interface{}
    25  //	 query = "select * from foo where id=" + nextBindVar(&args, 100)
    26  //	 db.Query(query, args...)
    27  func nextBindVar(args *[]interface{}, value interface{}) string {
    28  	*args = append(*args, value)
    29  	return "$" + strconv.Itoa(len(*args))
    30  }