Rebind all SQL queries to acommodate Postgres

internal/handlers/handlers.go

@@ -14,8 +14,6 @@ type ResponseWriterWriter interface {
 	Write(http.ResponseWriter) error
 }
 
-type Tx = gorp.Transaction
-
 type Context struct {
 	Tx           *Tx
 	User         *User
@@ -51,7 +49,7 @@ type APIHandler struct {
 }
 
 func (ah *APIHandler) txWrapper(h Handler, r *http.Request, context *Context) (writer ResponseWriterWriter) {
-	tx, err := ah.DB.Begin()
+	tx, err := GetTx(ah.DB)
 	if err != nil {
 		log.Print(err)
 		return NewError(999 /*Internal Error*/)

internal/handlers/tx.go

@@ -0,0 +1,65 @@
+package handlers
+
+import (
+	"database/sql"
+	"gopkg.in/gorp.v1"
+	"strings"
+)
+
+type Tx struct {
+	Dialect gorp.Dialect
+	Tx      *gorp.Transaction
+}
+
+func (tx *Tx) Rebind(query string) string {
+	chunks := strings.Split(query, "?")
+	str := chunks[0]
+	for i := 1; i < len(chunks); i++ {
+		str += tx.Dialect.BindVar(i-1) + chunks[i]
+	}
+	return str
+}
+
+func (tx *Tx) Select(i interface{}, query string, args ...interface{}) ([]interface{}, error) {
+	return tx.Tx.Select(i, tx.Rebind(query), args...)
+}
+
+func (tx *Tx) Exec(query string, args ...interface{}) (sql.Result, error) {
+	return tx.Tx.Exec(tx.Rebind(query), args...)
+}
+
+func (tx *Tx) SelectInt(query string, args ...interface{}) (int64, error) {
+	return tx.Tx.SelectInt(tx.Rebind(query), args...)
+}
+
+func (tx *Tx) SelectOne(holder interface{}, query string, args ...interface{}) error {
+	return tx.Tx.SelectOne(holder, tx.Rebind(query), args...)
+}
+
+func (tx *Tx) Insert(list ...interface{}) error {
+	return tx.Tx.Insert(list...)
+}
+
+func (tx *Tx) Update(list ...interface{}) (int64, error) {
+	return tx.Tx.Update(list...)
+}
+
+func (tx *Tx) Delete(list ...interface{}) (int64, error) {
+	return tx.Tx.Delete(list...)
+}
+
+func (tx *Tx) Commit() error {
+	return tx.Tx.Commit()
+}
+
+func (tx *Tx) Rollback() error {
+	return tx.Tx.Rollback()
+}
+
+func GetTx(db *gorp.DbMap) (*Tx, error) {
+	tx, err := db.Begin()
+	if err != nil {
+		return nil, err
+	}
+	return &Tx{db.Dialect, tx}, nil
+}