feature model fix (#296)

* add raw stirng quote for sql field

* remove unused code

tools/goctl/model/sql/test/utils.go

@@ -0,0 +1,105 @@
+// copy from core/stores/sqlx/utils.go
+package mocksql
+
+import (
+	"database/sql"
+	"fmt"
+	"strings"
+
+	"github.com/tal-tech/go-zero/core/logx"
+	"github.com/tal-tech/go-zero/core/mapping"
+)
+
+var ErrNotFound = sql.ErrNoRows
+
+func desensitize(datasource string) string {
+	// remove account
+	pos := strings.LastIndex(datasource, "@")
+	if 0 <= pos && pos+1 < len(datasource) {
+		datasource = datasource[pos+1:]
+	}
+
+	return datasource
+}
+
+func escape(input string) string {
+	var b strings.Builder
+
+	for _, ch := range input {
+		switch ch {
+		case '\x00':
+			b.WriteString(`\x00`)
+		case '\r':
+			b.WriteString(`\r`)
+		case '\n':
+			b.WriteString(`\n`)
+		case '\\':
+			b.WriteString(`\\`)
+		case '\'':
+			b.WriteString(`\'`)
+		case '"':
+			b.WriteString(`\"`)
+		case '\x1a':
+			b.WriteString(`\x1a`)
+		default:
+			b.WriteRune(ch)
+		}
+	}
+
+	return b.String()
+}
+
+func format(query string, args ...interface{}) (string, error) {
+	numArgs := len(args)
+	if numArgs == 0 {
+		return query, nil
+	}
+
+	var b strings.Builder
+	argIndex := 0
+
+	for _, ch := range query {
+		if ch == '?' {
+			if argIndex >= numArgs {
+				return "", fmt.Errorf("error: %d ? in sql, but less arguments provided", argIndex)
+			}
+
+			arg := args[argIndex]
+			argIndex++
+
+			switch v := arg.(type) {
+			case bool:
+				if v {
+					b.WriteByte('1')
+				} else {
+					b.WriteByte('0')
+				}
+			case string:
+				b.WriteByte('\'')
+				b.WriteString(escape(v))
+				b.WriteByte('\'')
+			default:
+				b.WriteString(mapping.Repr(v))
+			}
+		} else {
+			b.WriteRune(ch)
+		}
+	}
+
+	if argIndex < numArgs {
+		return "", fmt.Errorf("error: %d ? in sql, but more arguments provided", argIndex)
+	}
+
+	return b.String(), nil
+}
+
+func logInstanceError(datasource string, err error) {
+	datasource = desensitize(datasource)
+	logx.Errorf("Error on getting sql instance of %s: %v", datasource, err)
+}
+
+func logSqlError(stmt string, err error) {
+	if err != nil && err != ErrNotFound {
+		logx.Errorf("stmt: %s, error: %s", stmt, err.Error())
+	}
+}