Merge pull request #2365 from chesedo/RequiredValidationCatchSpaces

[WIP]Have Required validator trim strings to fix #2361

validation/validation_test.go

@@ -35,6 +35,12 @@ func TestRequired(t *testing.T) {
 	if valid.Required("", "string").Ok {
 		t.Error("\"'\" string should be false")
 	}
+	if valid.Required(" ", "string").Ok {
+		t.Error("\" \" string should be false") // For #2361
+	}
+	if valid.Required("\n", "string").Ok {
+		t.Error("new line string should be false") // For #2361
+	}
 	if !valid.Required("astaxie", "string").Ok {
 		t.Error("string should be true")
 	}

validation/validators.go

@@ -18,6 +18,7 @@ import (
 	"fmt"
 	"reflect"
 	"regexp"
+	"strings"
 	"time"
 	"unicode/utf8"
 )
@@ -98,7 +99,7 @@ func (r Required) IsSatisfied(obj interface{}) bool {
 	}
 
 	if str, ok := obj.(string); ok {
-		return len(str) > 0
+		return len(strings.TrimSpace(str)) > 0
 	}
 	if _, ok := obj.(bool); ok {
 		return true