github.com/dannyzhou2015/migrate/v4@v4.15.2/util.go (about) 1 package migrate 2 3 import ( 4 "fmt" 5 nurl "net/url" 6 "strings" 7 ) 8 9 // MultiError holds multiple errors. 10 // 11 // Deprecated: Use github.com/hashicorp/go-multierror instead 12 type MultiError struct { 13 Errs []error 14 } 15 16 // NewMultiError returns an error type holding multiple errors. 17 // 18 // Deprecated: Use github.com/hashicorp/go-multierror instead 19 // 20 func NewMultiError(errs ...error) MultiError { 21 compactErrs := make([]error, 0) 22 for _, e := range errs { 23 if e != nil { 24 compactErrs = append(compactErrs, e) 25 } 26 } 27 return MultiError{compactErrs} 28 } 29 30 // Error implements error. Multiple errors are concatenated with 'and's. 31 func (m MultiError) Error() string { 32 var strs = make([]string, 0) 33 for _, e := range m.Errs { 34 if len(e.Error()) > 0 { 35 strs = append(strs, e.Error()) 36 } 37 } 38 return strings.Join(strs, " and ") 39 } 40 41 // suint safely converts int to uint 42 // see https://goo.gl/wEcqof 43 // see https://goo.gl/pai7Dr 44 func suint(n int) uint { 45 if n < 0 { 46 panic(fmt.Sprintf("suint(%v) expects input >= 0", n)) 47 } 48 return uint(n) 49 } 50 51 // FilterCustomQuery filters all query values starting with `x-` 52 func FilterCustomQuery(u *nurl.URL) *nurl.URL { 53 ux := *u 54 vx := make(nurl.Values) 55 for k, v := range ux.Query() { 56 if len(k) <= 1 || k[0:2] != "x-" { 57 vx[k] = v 58 } 59 } 60 ux.RawQuery = vx.Encode() 61 return &ux 62 }