fix Strings/String function for package gvalid, issue:1077

util/gvalid/gvalid_check.go

@@ -21,13 +21,22 @@ import (
 
 const (
 	// regular expression pattern for single validation rule.
-	gSINGLE_RULE_PATTERN = `^([\w-]+):{0,1}(.*)`
+	singleRulePattern   = `^([\w-]+):{0,1}(.*)`
+	invalidRulesErrKey  = "invalid_rules"
+	invalidParamsErrKey = "invalid_params"
+	invalidObjectErrKey = "invalid_object"
 )
 
 var (
+	// all internal error keys.
+	internalErrKeyMap = map[string]string{
+		invalidRulesErrKey:  invalidRulesErrKey,
+		invalidParamsErrKey: invalidParamsErrKey,
+		invalidObjectErrKey: invalidObjectErrKey,
+	}
 	// regular expression object for single rule
 	// which is compiled just once and of repeatable usage.
-	ruleRegex, _ = regexp.Compile(gSINGLE_RULE_PATTERN)
+	ruleRegex, _ = regexp.Compile(singleRulePattern)
 
 	// mustCheckRulesEvenValueEmpty specifies some rules that must be validated
 	// even the value is empty (nil or empty).
@@ -160,8 +169,8 @@ func doCheck(key string, value interface{}, rules string, messages interface{},
 				ruleItems = append(ruleItems[:i], ruleItems[i+1:]...)
 			} else {
 				return newErrorStr(
-					"invalid_rules",
-					"invalid rules: "+rules,
+					invalidRulesErrKey,
+					invalidRulesErrKey+": "+rules,
 				)
 			}
 		} else {
@@ -273,7 +282,7 @@ func doCheckBuildInRules(
 	case "regex":
 		// It here should check the rule as there might be special char '|' in it.
 		for i := index + 1; i < len(ruleItems); i++ {
-			if !gregex.IsMatchString(gSINGLE_RULE_PATTERN, ruleItems[i]) {
+			if !gregex.IsMatchString(singleRulePattern, ruleItems[i]) {
 				rulePattern += "|" + ruleItems[i]
 				index++
 			}

util/gvalid/gvalid_error.go

@@ -168,13 +168,19 @@ func (e *Error) Strings() (errs []string) {
 		for _, v := range e.rules {
 			name, rule, _ := parseSequenceTag(v)
 			if m, ok := e.errors[name]; ok {
+				// validation error checks.
 				for _, rule := range strings.Split(rule, "|") {
-					array := strings.Split(rule, ":")
-					rule = strings.TrimSpace(array[0])
+					rule = strings.TrimSpace(strings.Split(rule, ":")[0])
 					if err, ok := m[rule]; ok {
 						errs = append(errs, err)
 					}
 				}
+				// internal error checks.
+				for k, _ := range internalErrKeyMap {
+					if err, ok := m[k]; ok {
+						errs = append(errs, err)
+					}
+				}
 			}
 		}
 		return errs

util/gvalid/gvalid_unit_basic_all_test.go

@@ -7,6 +7,7 @@
 package gvalid_test
 
 import (
+	"github.com/gogf/gf/errors/gerror"
 	"testing"
 
 	"github.com/gogf/gf/frame/g"
@@ -23,9 +24,9 @@ func Test_Check(t *testing.T) {
 		err1 := gvalid.Check(val1, rule, nil)
 		err2 := gvalid.Check(val2, rule, nil)
 		err3 := gvalid.Check(val3, rule, nil)
-		t.Assert(err1, "invalid rules: abc:6,16")
-		t.Assert(err2, "invalid rules: abc:6,16")
-		t.Assert(err3, "invalid rules: abc:6,16")
+		t.Assert(err1, "invalid_rules: abc:6,16")
+		t.Assert(err2, "invalid_rules: abc:6,16")
+		t.Assert(err3, "invalid_rules: abc:6,16")
 	})
 }
 
@@ -907,3 +908,19 @@ func Test_Regex2(t *testing.T) {
 		t.AssertNE(err2.Map()["min-length"], nil)
 	})
 }
+
+// issue: https://github.com/gogf/gf/issues/1077
+func Test_InternalError_String(t *testing.T) {
+	gtest.C(t, func(t *gtest.T) {
+		type a struct {
+			Name string `v:"hh"`
+		}
+		aa := a{Name: "2"}
+		err := gvalid.CheckStruct(&aa, nil)
+
+		t.Assert(err.String(), "invalid_rules: hh")
+		t.Assert(err.Strings(), g.Slice{"invalid_rules: hh"})
+		t.Assert(err.FirstString(), "invalid_rules: hh")
+		t.Assert(gerror.Current(err), "invalid_rules: hh")
+	})
+}