fix: some api bug

app/user_verifications/rpc/internal/models/schema/userverifications.go

@@ -1,6 +1,8 @@
 package schema
 
 import (
+	"time"
+
 	"entgo.io/ent"
 	"entgo.io/ent/schema/field"
 )
@@ -13,8 +15,8 @@ type UserVerifications struct {
 type MaterialStruct struct {
 	IdCardFront     string   `json:"idCardFront"`
 	IdCardBack      string   `json:"idCardBack"`
-	GameScreenshots []string `json:"gameScreenshots"`
-	VoiceDemo       string   `json:"voiceDemo"`
+	GameScreenshots []string `json:"gameScreenshots,omitempty"`
+	VoiceDemo       string   `json:"voiceDemo,omitempty"`
 }
 
 // Fields of the UserVerifications.
@@ -22,14 +24,14 @@ func (UserVerifications) Fields() []ent.Field {
 	return []ent.Field{
 		field.Int64("id").Immutable().Unique(),
 		field.Int64("user_id").Immutable().Unique(),
-		field.String("role").Unique(),
+		field.String("role"),
 		field.String("status").Default("pending"),
 		field.JSON("materials", MaterialStruct{}),
-		field.String("reject_reason").Default(""),
-		field.Int64("reviewed_by"),
-		field.Time("reviewed_at").Immutable(),
-		field.Time("created_at").Immutable(),
-		field.Time("updated_at").Immutable(),
+		field.String("reject_reason").Nillable().Optional(),
+		field.Int64("reviewed_by").Nillable().Optional(),
+		field.Time("reviewed_at").Nillable().Optional(),
+		field.Time("created_at").Immutable().Optional().Default(time.Now),
+		field.Time("updated_at").Immutable().Optional().Default(time.Now),
 	}
 }