new: set default ui language to "en"

Author: ludomikula

server/api-service/lowcoder-domain/src/main/java/org/lowcoder/domain/user/model/User.java

@@ -17,6 +17,7 @@
 import org.lowcoder.domain.mongodb.BeforeMongodbWrite;
 import org.lowcoder.domain.mongodb.MongodbInterceptorContext;
 import org.lowcoder.sdk.config.SerializeConfig;
+import org.lowcoder.sdk.constants.UiConstants;
 import org.lowcoder.sdk.models.HasIdAndAuditing;
 import org.lowcoder.sdk.util.JsonUtils;
 import org.springframework.data.annotation.Transient;
@@ -41,7 +42,8 @@ public class User extends HasIdAndAuditing implements BeforeMongodbWrite, AfterM
 
     private String name;
 
-    private String uiLanguage;
+    @Builder.Default
+    private String uiLanguage = UiConstants.DEFAULT_UI_LANGUAGE;
 
     private String avatar;
 

server/api-service/lowcoder-domain/src/main/java/org/lowcoder/domain/user/model/UserDetail.java

@@ -6,6 +6,7 @@
 
 import lombok.Builder;
 import lombok.Getter;
+import org.lowcoder.sdk.constants.UiConstants;
 
 @Builder
 @Getter
@@ -14,7 +15,7 @@ public class UserDetail {
             .id("")
             .name("ANONYMOUS")
             .avatarUrl("")
-            .uiLanguage("")
+            .uiLanguage("en")
             .email("")
             .ip("")
             .groups(Collections.emptyList())
@@ -24,7 +25,8 @@ public class UserDetail {
     private String id;
     private String name;
     private String avatarUrl;
-    private String uiLanguage;
+    @Builder.Default
+    private String uiLanguage = UiConstants.DEFAULT_UI_LANGUAGE;
     private String email;
     private String ip;
     private List<Map<String, String>> groups;

server/api-service/lowcoder-sdk/src/main/java/org/lowcoder/sdk/constants/UiConstants.java

@@ -0,0 +1,9 @@
+package org.lowcoder.sdk.constants;
+
+public class UiConstants
+{
+    /**
+     * Default language to be used for user if it has none selected.
+     */
+    public static final String DEFAULT_UI_LANGUAGE = "en";
+}

server/api-service/lowcoder-server/src/main/java/org/lowcoder/api/usermanagement/view/UserProfileView.java

@@ -10,6 +10,7 @@
 
 import lombok.Builder;
 import lombok.Getter;
+import org.lowcoder.sdk.constants.UiConstants;
 
 @Builder
 @Getter
@@ -31,7 +32,8 @@ public class UserProfileView {
     @JsonProperty(value = "isEnabled")
     private boolean isEnabled;
 
-    private String uiLanguage;
+    @Builder.Default
+    private String uiLanguage = UiConstants.DEFAULT_UI_LANGUAGE;
 
     private String avatar;