Update Validator instance check

* change for one validator instance method and message
pull/167/head
joeybloggs 9 years ago
parent 0650f73d40
commit 14df416126
  1. 70
      validator.go
  2. 14
      validator_test.go

@ -20,21 +20,22 @@ import (
) )
const ( const (
utf8HexComma = "0x2C" utf8HexComma = "0x2C"
utf8Pipe = "0x7C" utf8Pipe = "0x7C"
tagSeparator = "," tagSeparator = ","
orSeparator = "|" orSeparator = "|"
tagKeySeparator = "=" tagKeySeparator = "="
structOnlyTag = "structonly" structOnlyTag = "structonly"
omitempty = "omitempty" omitempty = "omitempty"
skipValidationTag = "-" skipValidationTag = "-"
diveTag = "dive" diveTag = "dive"
existsTag = "exists" existsTag = "exists"
fieldErrMsg = "Key: \"%s\" Error:Field validation for \"%s\" failed on the \"%s\" tag" fieldErrMsg = "Key: \"%s\" Error:Field validation for \"%s\" failed on the \"%s\" tag"
arrayIndexFieldName = "%s" + leftBracket + "%d" + rightBracket arrayIndexFieldName = "%s" + leftBracket + "%d" + rightBracket
mapIndexFieldName = "%s" + leftBracket + "%v" + rightBracket mapIndexFieldName = "%s" + leftBracket + "%v" + rightBracket
invalidValidation = "Invalid validation tag on field %s" invalidValidation = "Invalid validation tag on field %s"
undefinedValidation = "Undefined validation function on field %s" undefinedValidation = "Undefined validation function on field %s"
validatorNotInitialized = "Validator instance not initialized"
) )
var ( var (
@ -78,6 +79,12 @@ type Validate struct {
config Config config Config
} }
func (v *Validate) initCheck() {
if v == nil {
panic(validatorNotInitialized)
}
}
// Config contains the options that a Validator instance will use. // Config contains the options that a Validator instance will use.
// It is passed to the New() function // It is passed to the New() function
type Config struct { type Config struct {
@ -146,9 +153,8 @@ func New(config Config) *Validate {
// NOTE: if the key already exists, the previous validation function will be replaced. // NOTE: if the key already exists, the previous validation function will be replaced.
// NOTE: this method is not thread-safe // NOTE: this method is not thread-safe
func (v *Validate) RegisterValidation(key string, f Func) error { func (v *Validate) RegisterValidation(key string, f Func) error {
if v == nil { v.initCheck()
panic("Validate.RegisterValidation called with nil receiver")
}
if len(key) == 0 { if len(key) == 0 {
return errors.New("Function Key cannot be empty") return errors.New("Function Key cannot be empty")
} }
@ -164,9 +170,7 @@ func (v *Validate) RegisterValidation(key string, f Func) error {
// RegisterCustomTypeFunc registers a CustomTypeFunc against a number of types // RegisterCustomTypeFunc registers a CustomTypeFunc against a number of types
func (v *Validate) RegisterCustomTypeFunc(fn CustomTypeFunc, types ...interface{}) { func (v *Validate) RegisterCustomTypeFunc(fn CustomTypeFunc, types ...interface{}) {
if v == nil { v.initCheck()
panic("Validate.RegisterCustomTypeFunc called with nil receiver")
}
if v.config.CustomTypeFuncs == nil { if v.config.CustomTypeFuncs == nil {
v.config.CustomTypeFuncs = map[reflect.Type]CustomTypeFunc{} v.config.CustomTypeFuncs = map[reflect.Type]CustomTypeFunc{}
@ -183,9 +187,8 @@ func (v *Validate) RegisterCustomTypeFunc(fn CustomTypeFunc, types ...interface{
// NOTE: it returns ValidationErrors instead of a single FieldError because this can also // NOTE: it returns ValidationErrors instead of a single FieldError because this can also
// validate Array, Slice and maps fields which may contain more than one error // validate Array, Slice and maps fields which may contain more than one error
func (v *Validate) Field(field interface{}, tag string) ValidationErrors { func (v *Validate) Field(field interface{}, tag string) ValidationErrors {
if v == nil { v.initCheck()
panic("Validate.Field called with nil receiver")
}
errs := errsPool.Get().(ValidationErrors) errs := errsPool.Get().(ValidationErrors)
fieldVal := reflect.ValueOf(field) fieldVal := reflect.ValueOf(field)
@ -203,9 +206,7 @@ func (v *Validate) Field(field interface{}, tag string) ValidationErrors {
// NOTE: it returns ValidationErrors instead of a single FieldError because this can also // NOTE: it returns ValidationErrors instead of a single FieldError because this can also
// validate Array, Slice and maps fields which may contain more than one error // validate Array, Slice and maps fields which may contain more than one error
func (v *Validate) FieldWithValue(val interface{}, field interface{}, tag string) ValidationErrors { func (v *Validate) FieldWithValue(val interface{}, field interface{}, tag string) ValidationErrors {
if v == nil { v.initCheck()
panic("Validate.FieldWithValue called with nil receiver")
}
errs := errsPool.Get().(ValidationErrors) errs := errsPool.Get().(ValidationErrors)
topVal := reflect.ValueOf(val) topVal := reflect.ValueOf(val)
@ -226,9 +227,8 @@ func (v *Validate) FieldWithValue(val interface{}, field interface{}, tag string
// NOTE: This is normally not needed, however in some specific cases such as: tied to a // NOTE: This is normally not needed, however in some specific cases such as: tied to a
// legacy data structure, it will be useful // legacy data structure, it will be useful
func (v *Validate) StructPartial(current interface{}, fields ...string) ValidationErrors { func (v *Validate) StructPartial(current interface{}, fields ...string) ValidationErrors {
if v == nil { v.initCheck()
panic("Validate.StructPartial called with nil receiver")
}
sv, _ := v.extractType(reflect.ValueOf(current)) sv, _ := v.extractType(reflect.ValueOf(current))
name := sv.Type().Name() name := sv.Type().Name()
m := map[string]*struct{}{} m := map[string]*struct{}{}
@ -286,9 +286,8 @@ func (v *Validate) StructPartial(current interface{}, fields ...string) Validati
// NOTE: This is normally not needed, however in some specific cases such as: tied to a // NOTE: This is normally not needed, however in some specific cases such as: tied to a
// legacy data structure, it will be useful // legacy data structure, it will be useful
func (v *Validate) StructExcept(current interface{}, fields ...string) ValidationErrors { func (v *Validate) StructExcept(current interface{}, fields ...string) ValidationErrors {
if v == nil { v.initCheck()
panic("Validate.StructExcept called with nil receiver")
}
sv, _ := v.extractType(reflect.ValueOf(current)) sv, _ := v.extractType(reflect.ValueOf(current))
name := sv.Type().Name() name := sv.Type().Name()
m := map[string]*struct{}{} m := map[string]*struct{}{}
@ -311,9 +310,8 @@ func (v *Validate) StructExcept(current interface{}, fields ...string) Validatio
// Struct validates a structs exposed fields, and automatically validates nested structs, unless otherwise specified. // Struct validates a structs exposed fields, and automatically validates nested structs, unless otherwise specified.
func (v *Validate) Struct(current interface{}) ValidationErrors { func (v *Validate) Struct(current interface{}) ValidationErrors {
if v == nil { v.initCheck()
panic("Validate.Struct called with nil receiver")
}
errs := errsPool.Get().(ValidationErrors) errs := errsPool.Get().(ValidationErrors)
sv := reflect.ValueOf(current) sv := reflect.ValueOf(current)

@ -225,13 +225,13 @@ func TestNilValidator(t *testing.T) {
return current.String() == field.String() return current.String() == field.String()
} }
PanicMatches(t, func() { val.RegisterCustomTypeFunc(ValidateCustomType, MadeUpCustomType{}) }, "Validate.RegisterCustomTypeFunc called with nil receiver") PanicMatches(t, func() { val.RegisterCustomTypeFunc(ValidateCustomType, MadeUpCustomType{}) }, validatorNotInitialized)
PanicMatches(t, func() { val.RegisterValidation("something", fn) }, "Validate.RegisterValidation called with nil receiver") PanicMatches(t, func() { val.RegisterValidation("something", fn) }, validatorNotInitialized)
PanicMatches(t, func() { val.Field(ts.Test, "required") }, "Validate.Field called with nil receiver") PanicMatches(t, func() { val.Field(ts.Test, "required") }, validatorNotInitialized)
PanicMatches(t, func() { val.FieldWithValue("test", ts.Test, "required") }, "Validate.FieldWithValue called with nil receiver") PanicMatches(t, func() { val.FieldWithValue("test", ts.Test, "required") }, validatorNotInitialized)
PanicMatches(t, func() { val.Struct(ts) }, "Validate.Struct called with nil receiver") PanicMatches(t, func() { val.Struct(ts) }, validatorNotInitialized)
PanicMatches(t, func() { val.StructExcept(ts, "Test") }, "Validate.StructExcept called with nil receiver") PanicMatches(t, func() { val.StructExcept(ts, "Test") }, validatorNotInitialized)
PanicMatches(t, func() { val.StructPartial(ts, "Test") }, "Validate.StructPartial called with nil receiver") PanicMatches(t, func() { val.StructPartial(ts, "Test") }, validatorNotInitialized)
} }

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