github.com/mad-app/mattermost-server@v5.11.1+incompatible/store/sqlstore/utils.go (about)

     1  // Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
     2  // See License.txt for license information.
     3  
     4  package sqlstore
     5  
     6  import (
     7  	"bytes"
     8  	"database/sql"
     9  	"fmt"
    10  	"strconv"
    11  
    12  	"github.com/mattermost/gorp"
    13  	"github.com/mattermost/mattermost-server/mlog"
    14  )
    15  
    16  // Converts a list of strings into a list of query parameters and a named parameter map that can
    17  // be used as part of a SQL query.
    18  func MapStringsToQueryParams(list []string, paramPrefix string) (string, map[string]interface{}) {
    19  	keys := bytes.Buffer{}
    20  	params := make(map[string]interface{}, len(list))
    21  	for i, entry := range list {
    22  		if keys.Len() > 0 {
    23  			keys.WriteString(",")
    24  		}
    25  
    26  		key := paramPrefix + strconv.Itoa(i)
    27  		keys.WriteString(":" + key)
    28  		params[key] = entry
    29  	}
    30  
    31  	return fmt.Sprintf("(%v)", keys.String()), params
    32  }
    33  
    34  // finalizeTransaction ensures a transaction is closed after use, rolling back if not already committed.
    35  func finalizeTransaction(transaction *gorp.Transaction) {
    36  	// Rollback returns sql.ErrTxDone if the transaction was already closed.
    37  	if err := transaction.Rollback(); err != nil && err != sql.ErrTxDone {
    38  		mlog.Error("Failed to rollback transaction", mlog.Err(err))
    39  	}
    40  }