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validator
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Expose Methods for Custom functions

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Exposed previously unexposed functions for use within custom functions.
* ExtractType
* GetStructFieldOK
pull/172/head
joeybloggs 9 years ago
parent eab946fcd9
commit 830d270923
4 changed files with 73 additions and 65 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 24
      baked_in.go
  2. 52
      util.go
  3. 6
      validator.go
  4. 56
      validator_test.go

24
baked_in.go
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@ -260,7 +260,7 @@ func contains(v *Validate, topStruct reflect.Value, currentStructOrField reflect
func isNeField(v *Validate, topStruct reflect.Value, currentStructOrField reflect.Value, field reflect.Value, fieldType reflect.Type, fieldKind reflect.Kind, param string) bool {
currentField, currentKind, ok := v.getStructFieldOK(currentStructOrField, param)
currentField, currentKind, ok := v.GetStructFieldOK(currentStructOrField, param)
if !ok || currentKind != fieldKind {
return true
@ -307,7 +307,7 @@ func isNe(v *Validate, topStruct reflect.Value, currentStructOrField reflect.Val
func isLteCrossStructField(v *Validate, topStruct reflect.Value, current reflect.Value, field reflect.Value, fieldType reflect.Type, fieldKind reflect.Kind, param string) bool {
topField, topKind, ok := v.getStructFieldOK(topStruct, param)
topField, topKind, ok := v.GetStructFieldOK(topStruct, param)
if !ok || topKind != fieldKind {
return false
}
@ -348,7 +348,7 @@ func isLteCrossStructField(v *Validate, topStruct reflect.Value, current reflect
func isLtCrossStructField(v *Validate, topStruct reflect.Value, current reflect.Value, field reflect.Value, fieldType reflect.Type, fieldKind reflect.Kind, param string) bool {
topField, topKind, ok := v.getStructFieldOK(topStruct, param)
topField, topKind, ok := v.GetStructFieldOK(topStruct, param)
if !ok || topKind != fieldKind {
return false
}
@ -389,7 +389,7 @@ func isLtCrossStructField(v *Validate, topStruct reflect.Value, current reflect.
func isGteCrossStructField(v *Validate, topStruct reflect.Value, current reflect.Value, field reflect.Value, fieldType reflect.Type, fieldKind reflect.Kind, param string) bool {
topField, topKind, ok := v.getStructFieldOK(topStruct, param)
topField, topKind, ok := v.GetStructFieldOK(topStruct, param)
if !ok || topKind != fieldKind {
return false
}
@ -430,7 +430,7 @@ func isGteCrossStructField(v *Validate, topStruct reflect.Value, current reflect
func isGtCrossStructField(v *Validate, topStruct reflect.Value, current reflect.Value, field reflect.Value, fieldType reflect.Type, fieldKind reflect.Kind, param string) bool {
topField, topKind, ok := v.getStructFieldOK(topStruct, param)
topField, topKind, ok := v.GetStructFieldOK(topStruct, param)
if !ok || topKind != fieldKind {
return false
}
@ -471,7 +471,7 @@ func isGtCrossStructField(v *Validate, topStruct reflect.Value, current reflect.
func isNeCrossStructField(v *Validate, topStruct reflect.Value, current reflect.Value, field reflect.Value, fieldType reflect.Type, fieldKind reflect.Kind, param string) bool {
topField, currentKind, ok := v.getStructFieldOK(topStruct, param)
topField, currentKind, ok := v.GetStructFieldOK(topStruct, param)
if !ok || currentKind != fieldKind {
return true
}
@ -512,7 +512,7 @@ func isNeCrossStructField(v *Validate, topStruct reflect.Value, current reflect.
func isEqCrossStructField(v *Validate, topStruct reflect.Value, current reflect.Value, field reflect.Value, fieldType reflect.Type, fieldKind reflect.Kind, param string) bool {
topField, topKind, ok := v.getStructFieldOK(topStruct, param)
topField, topKind, ok := v.GetStructFieldOK(topStruct, param)
if !ok || topKind != fieldKind {
return false
}
@ -553,7 +553,7 @@ func isEqCrossStructField(v *Validate, topStruct reflect.Value, current reflect.
func isEqField(v *Validate, topStruct reflect.Value, currentStructOrField reflect.Value, field reflect.Value, fieldType reflect.Type, fieldKind reflect.Kind, param string) bool {
currentField, currentKind, ok := v.getStructFieldOK(currentStructOrField, param)
currentField, currentKind, ok := v.GetStructFieldOK(currentStructOrField, param)
if !ok || currentKind != fieldKind {
return false
}
@ -718,7 +718,7 @@ func hasValue(v *Validate, topStruct reflect.Value, currentStructOrField reflect
func isGteField(v *Validate, topStruct reflect.Value, currentStructOrField reflect.Value, field reflect.Value, fieldType reflect.Type, fieldKind reflect.Kind, param string) bool {
currentField, currentKind, ok := v.getStructFieldOK(currentStructOrField, param)
currentField, currentKind, ok := v.GetStructFieldOK(currentStructOrField, param)
if !ok || currentKind != fieldKind {
return false
}
@ -759,7 +759,7 @@ func isGteField(v *Validate, topStruct reflect.Value, currentStructOrField refle
func isGtField(v *Validate, topStruct reflect.Value, currentStructOrField reflect.Value, field reflect.Value, fieldType reflect.Type, fieldKind reflect.Kind, param string) bool {
currentField, currentKind, ok := v.getStructFieldOK(currentStructOrField, param)
currentField, currentKind, ok := v.GetStructFieldOK(currentStructOrField, param)
if !ok || currentKind != fieldKind {
return false
}
@ -927,7 +927,7 @@ func hasMinOf(v *Validate, topStruct reflect.Value, currentStructOrField reflect
func isLteField(v *Validate, topStruct reflect.Value, currentStructOrField reflect.Value, field reflect.Value, fieldType reflect.Type, fieldKind reflect.Kind, param string) bool {
currentField, currentKind, ok := v.getStructFieldOK(currentStructOrField, param)
currentField, currentKind, ok := v.GetStructFieldOK(currentStructOrField, param)
if !ok || currentKind != fieldKind {
return false
}
@ -968,7 +968,7 @@ func isLteField(v *Validate, topStruct reflect.Value, currentStructOrField refle
func isLtField(v *Validate, topStruct reflect.Value, currentStructOrField reflect.Value, field reflect.Value, fieldType reflect.Type, fieldKind reflect.Kind, param string) bool {
currentField, currentKind, ok := v.getStructFieldOK(currentStructOrField, param)
currentField, currentKind, ok := v.GetStructFieldOK(currentStructOrField, param)
if !ok || currentKind != fieldKind {
return false
}

52
util.go
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@ -29,7 +29,11 @@ var (
}
)
func (v *Validate) extractType(current reflect.Value) (reflect.Value, reflect.Kind) {
// ExtractType gets the actual underlying type of field value.
// It will dive into pointers, customTypes and return you the
// underlying value and it's kind.
// it is exposed for use within you Custom Functions
func (v *Validate) ExtractType(current reflect.Value) (reflect.Value, reflect.Kind) {
switch current.Kind() {
case reflect.Ptr:
@ -38,7 +42,7 @@ func (v *Validate) extractType(current reflect.Value) (reflect.Value, reflect.Ki
return current, reflect.Ptr
}
return v.extractType(current.Elem())
return v.ExtractType(current.Elem())
case reflect.Interface:
@ -46,7 +50,7 @@ func (v *Validate) extractType(current reflect.Value) (reflect.Value, reflect.Ki
return current, reflect.Interface
}
return v.extractType(current.Elem())
return v.ExtractType(current.Elem())
case reflect.Invalid:
return current, reflect.Invalid
@ -55,7 +59,7 @@ func (v *Validate) extractType(current reflect.Value) (reflect.Value, reflect.Ki
if v.hasCustomFuncs {
if fn, ok := v.customTypeFuncs[current.Type()]; ok {
return v.extractType(reflect.ValueOf(fn(current)))
return v.ExtractType(reflect.ValueOf(fn(current)))
}
}
@ -63,9 +67,13 @@ func (v *Validate) extractType(current reflect.Value) (reflect.Value, reflect.Ki
}
}
func (v *Validate) getStructFieldOK(current reflect.Value, namespace string) (reflect.Value, reflect.Kind, bool) {
// GetStructFieldOK traverses a struct to retrieve a specific field denoted by the provided namespace and
// returns the field, field kind and whether is was successful in retrieving the field at all.
// NOTE: when not successful ok will be false, this can happen when a nested struct is nil and so the field
// could not be retrived because it didnt exist.
func (v *Validate) GetStructFieldOK(current reflect.Value, namespace string) (reflect.Value, reflect.Kind, bool) {
current, kind := v.extractType(current)
current, kind := v.ExtractType(current)
if kind == reflect.Invalid {
return current, kind, false
@ -108,7 +116,7 @@ func (v *Validate) getStructFieldOK(current reflect.Value, namespace string) (re
current = current.FieldByName(fld)
return v.getStructFieldOK(current, ns)
return v.GetStructFieldOK(current, ns)
}
case reflect.Array, reflect.Slice:
@ -129,7 +137,7 @@ func (v *Validate) getStructFieldOK(current reflect.Value, namespace string) (re
}
}
return v.getStructFieldOK(current.Index(arrIdx), namespace[startIdx:])
return v.GetStructFieldOK(current.Index(arrIdx), namespace[startIdx:])
case reflect.Map:
idx := strings.Index(namespace, leftBracket) + 1
@ -148,47 +156,47 @@ func (v *Validate) getStructFieldOK(current reflect.Value, namespace string) (re
switch current.Type().Key().Kind() {
case reflect.Int:
i, _ := strconv.Atoi(key)
return v.getStructFieldOK(current.MapIndex(reflect.ValueOf(i)), namespace[endIdx+1:])
return v.GetStructFieldOK(current.MapIndex(reflect.ValueOf(i)), namespace[endIdx+1:])
case reflect.Int8:
i, _ := strconv.ParseInt(key, 10, 8)
return v.getStructFieldOK(current.MapIndex(reflect.ValueOf(int8(i))), namespace[endIdx+1:])
return v.GetStructFieldOK(current.MapIndex(reflect.ValueOf(int8(i))), namespace[endIdx+1:])
case reflect.Int16:
i, _ := strconv.ParseInt(key, 10, 16)
return v.getStructFieldOK(current.MapIndex(reflect.ValueOf(int16(i))), namespace[endIdx+1:])
return v.GetStructFieldOK(current.MapIndex(reflect.ValueOf(int16(i))), namespace[endIdx+1:])
case reflect.Int32:
i, _ := strconv.ParseInt(key, 10, 32)
return v.getStructFieldOK(current.MapIndex(reflect.ValueOf(int32(i))), namespace[endIdx+1:])
return v.GetStructFieldOK(current.MapIndex(reflect.ValueOf(int32(i))), namespace[endIdx+1:])
case reflect.Int64:
i, _ := strconv.ParseInt(key, 10, 64)
return v.getStructFieldOK(current.MapIndex(reflect.ValueOf(i)), namespace[endIdx+1:])
return v.GetStructFieldOK(current.MapIndex(reflect.ValueOf(i)), namespace[endIdx+1:])
case reflect.Uint:
i, _ := strconv.ParseUint(key, 10, 0)
return v.getStructFieldOK(current.MapIndex(reflect.ValueOf(uint(i))), namespace[endIdx+1:])
return v.GetStructFieldOK(current.MapIndex(reflect.ValueOf(uint(i))), namespace[endIdx+1:])
case reflect.Uint8:
i, _ := strconv.ParseUint(key, 10, 8)
return v.getStructFieldOK(current.MapIndex(reflect.ValueOf(uint8(i))), namespace[endIdx+1:])
return v.GetStructFieldOK(current.MapIndex(reflect.ValueOf(uint8(i))), namespace[endIdx+1:])
case reflect.Uint16:
i, _ := strconv.ParseUint(key, 10, 16)
return v.getStructFieldOK(current.MapIndex(reflect.ValueOf(uint16(i))), namespace[endIdx+1:])
return v.GetStructFieldOK(current.MapIndex(reflect.ValueOf(uint16(i))), namespace[endIdx+1:])
case reflect.Uint32:
i, _ := strconv.ParseUint(key, 10, 32)
return v.getStructFieldOK(current.MapIndex(reflect.ValueOf(uint32(i))), namespace[endIdx+1:])
return v.GetStructFieldOK(current.MapIndex(reflect.ValueOf(uint32(i))), namespace[endIdx+1:])
case reflect.Uint64:
i, _ := strconv.ParseUint(key, 10, 64)
return v.getStructFieldOK(current.MapIndex(reflect.ValueOf(i)), namespace[endIdx+1:])
return v.GetStructFieldOK(current.MapIndex(reflect.ValueOf(i)), namespace[endIdx+1:])
case reflect.Float32:
f, _ := strconv.ParseFloat(key, 32)
return v.getStructFieldOK(current.MapIndex(reflect.ValueOf(float32(f))), namespace[endIdx+1:])
return v.GetStructFieldOK(current.MapIndex(reflect.ValueOf(float32(f))), namespace[endIdx+1:])
case reflect.Float64:
f, _ := strconv.ParseFloat(key, 64)
return v.getStructFieldOK(current.MapIndex(reflect.ValueOf(f)), namespace[endIdx+1:])
return v.GetStructFieldOK(current.MapIndex(reflect.ValueOf(f)), namespace[endIdx+1:])
case reflect.Bool:
b, _ := strconv.ParseBool(key)
return v.getStructFieldOK(current.MapIndex(reflect.ValueOf(b)), namespace[endIdx+1:])
return v.GetStructFieldOK(current.MapIndex(reflect.ValueOf(b)), namespace[endIdx+1:])
// reflect.Type = string
default:
return v.getStructFieldOK(current.MapIndex(reflect.ValueOf(key)), namespace[endIdx+1:])
return v.GetStructFieldOK(current.MapIndex(reflect.ValueOf(key)), namespace[endIdx+1:])
}
}

6
validator.go
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@ -282,7 +282,7 @@ func (v *Validate) FieldWithValue(val interface{}, field interface{}, tag string
func (v *Validate) StructPartial(current interface{}, fields ...string) error {
v.initCheck()
sv, _ := v.extractType(reflect.ValueOf(current))
sv, _ := v.ExtractType(reflect.ValueOf(current))
name := sv.Type().Name()
m := map[string]*struct{}{}
@ -340,7 +340,7 @@ func (v *Validate) StructPartial(current interface{}, fields ...string) error {
func (v *Validate) StructExcept(current interface{}, fields ...string) error {
v.initCheck()
sv, _ := v.extractType(reflect.ValueOf(current))
sv, _ := v.ExtractType(reflect.ValueOf(current))
name := sv.Type().Name()
m := map[string]*struct{}{}
@ -435,7 +435,7 @@ func (v *Validate) traverseField(topStruct reflect.Value, currentStruct reflect.
v.tagsCache.Set(tag, cTag)
}
current, kind := v.extractType(current)
current, kind := v.ExtractType(current)
var typ reflect.Type
switch kind {

56
validator_test.go
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@ -1088,125 +1088,125 @@ func TestCrossNamespaceFieldValidation(t *testing.T) {
val := reflect.ValueOf(test)
current, kind, ok := validate.getStructFieldOK(val, "Inner.CreatedAt")
current, kind, ok := validate.GetStructFieldOK(val, "Inner.CreatedAt")
Equal(t, ok, true)
Equal(t, kind, reflect.Struct)
tm, ok := current.Interface().(time.Time)
Equal(t, ok, true)
Equal(t, tm, now)
current, kind, ok = validate.getStructFieldOK(val, "Inner.Slice[1]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.Slice[1]")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "val2")
current, kind, ok = validate.getStructFieldOK(val, "Inner.CrazyNonExistantField")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.CrazyNonExistantField")
Equal(t, ok, false)
current, kind, ok = validate.getStructFieldOK(val, "Inner.Slice[101]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.Slice[101]")
Equal(t, ok, false)
current, kind, ok = validate.getStructFieldOK(val, "Inner.Map[key3]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.Map[key3]")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "val3")
current, kind, ok = validate.getStructFieldOK(val, "Inner.MapMap[key2][key2-1]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.MapMap[key2][key2-1]")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "val2")
current, kind, ok = validate.getStructFieldOK(val, "Inner.MapStructs[key2].Name")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.MapStructs[key2].Name")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "name2")
current, kind, ok = validate.getStructFieldOK(val, "Inner.MapMapStruct[key3][key3-1].Name")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.MapMapStruct[key3][key3-1].Name")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "name3")
current, kind, ok = validate.getStructFieldOK(val, "Inner.SliceSlice[2][0]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.SliceSlice[2][0]")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "7")
current, kind, ok = validate.getStructFieldOK(val, "Inner.SliceSliceStruct[2][1].Name")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.SliceSliceStruct[2][1].Name")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "name8")
current, kind, ok = validate.getStructFieldOK(val, "Inner.SliceMap[1][key5]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.SliceMap[1][key5]")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "val5")
current, kind, ok = validate.getStructFieldOK(val, "Inner.MapSlice[key3][2]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.MapSlice[key3][2]")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "9")
current, kind, ok = validate.getStructFieldOK(val, "Inner.MapInt[2]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.MapInt[2]")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "val2")
current, kind, ok = validate.getStructFieldOK(val, "Inner.MapInt8[2]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.MapInt8[2]")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "val2")
current, kind, ok = validate.getStructFieldOK(val, "Inner.MapInt16[2]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.MapInt16[2]")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "val2")
current, kind, ok = validate.getStructFieldOK(val, "Inner.MapInt32[2]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.MapInt32[2]")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "val2")
current, kind, ok = validate.getStructFieldOK(val, "Inner.MapInt64[2]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.MapInt64[2]")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "val2")
current, kind, ok = validate.getStructFieldOK(val, "Inner.MapUint[2]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.MapUint[2]")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "val2")
current, kind, ok = validate.getStructFieldOK(val, "Inner.MapUint8[2]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.MapUint8[2]")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "val2")
current, kind, ok = validate.getStructFieldOK(val, "Inner.MapUint16[2]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.MapUint16[2]")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "val2")
current, kind, ok = validate.getStructFieldOK(val, "Inner.MapUint32[2]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.MapUint32[2]")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "val2")
current, kind, ok = validate.getStructFieldOK(val, "Inner.MapUint64[2]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.MapUint64[2]")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "val2")
current, kind, ok = validate.getStructFieldOK(val, "Inner.MapFloat32[3.03]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.MapFloat32[3.03]")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "val3")
current, kind, ok = validate.getStructFieldOK(val, "Inner.MapFloat64[2.02]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.MapFloat64[2.02]")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "val2")
current, kind, ok = validate.getStructFieldOK(val, "Inner.MapBool[true]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.MapBool[true]")
Equal(t, ok, true)
Equal(t, kind, reflect.String)
Equal(t, current.String(), "val1")
@ -1232,19 +1232,19 @@ func TestCrossNamespaceFieldValidation(t *testing.T) {
val = reflect.ValueOf(test)
current, kind, ok = validate.getStructFieldOK(val, "Inner.SliceStructs[2]")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.SliceStructs[2]")
Equal(t, ok, true)
Equal(t, kind, reflect.Ptr)
Equal(t, current.String(), "<*validator.SliceStruct Value>")
Equal(t, current.IsNil(), true)
current, kind, ok = validate.getStructFieldOK(val, "Inner.SliceStructs[2].Name")
current, kind, ok = validate.GetStructFieldOK(val, "Inner.SliceStructs[2].Name")
Equal(t, ok, false)
Equal(t, kind, reflect.Ptr)
Equal(t, current.String(), "<*validator.SliceStruct Value>")
Equal(t, current.IsNil(), true)
PanicMatches(t, func() { validate.getStructFieldOK(reflect.ValueOf(1), "crazyinput") }, "Invalid field namespace")
PanicMatches(t, func() { validate.GetStructFieldOK(reflect.ValueOf(1), "crazyinput") }, "Invalid field namespace")
}
func TestExistsValidation(t *testing.T) {

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