core/src/main/java/se/su/dsv/scipro/system/Username.java

@@ -5,13 +5,13 @@ import java.util.Objects;
 
 @Entity
 @Cacheable(true)
-@Table(name="username", uniqueConstraints={@UniqueConstraint(columnNames={"username"})})
+@Table(name="user_name", uniqueConstraints={@UniqueConstraint(name = "uk_user_name", columnNames={"user_name"})})
 public class Username extends DomainObject {
 	@Id
 	@GeneratedValue(strategy = GenerationType.IDENTITY)
 	private Long id;
 	
-	@Basic(optional=false)
+	@Column(name = "user_name", nullable = false)
 	private String username;
 	
 	@ManyToOne(optional=false)

core/src/main/resources/db/migration/V388__harmonize_table_attribute_name.sql

@@ -599,4 +599,75 @@ alter table `notification_delivery_configuration`
         foreign key (user_id)
             references user(id)
             on delete cascade
-            on update cascade;
+            on update cascade;
+
+-- table: username
+
+alter table `username` drop foreign key `FK_17moq4bksxe30ihucce3jovdc`;
+alter table `username` drop key `FK_17moq4bksxe30ihucce3jovdc`;
+alter table `username` drop key `username_must_be_unique`;
+
+rename table `username` to `user_name`;
+
+alter table `user_name` rename column `username` to `user_name`;
+
+alter table `user_name` add constraint uk_user_name unique(user_name);
+
+alter table `user_name`
+    add constraint fk_user_name_user_id
+        foreign key (user_id)
+        references user(id)
+        on delete cascade
+        on update cascade;
+
+
+/* the mess with ProjectType
+
+   SQL query for FK-to:
+
+   select table_name, column_name, referenced_table_name, referenced_column_name
+     from key_column_usage
+    where table_schema = 'tozh4728' and
+          referenced_table_name = 'ProjectType';
+
+   select referenced_table_name, count(*) as c
+     from key_column_usage
+    where table_schema = 'tozh4728' and
+          referenced_table_name is not null
+ group by referenced_table_name order by c desc;
+
+   SQL Query for FK-from
+
+     select table_name, column_name, referenced_table_name, referenced_column_name
+       from key_column_usage
+      where referenced_table_name is not null and table_name = 'user'
+   order by table_name;
+
+
+
+
+   A. Drop FK from following tables
+
+   1. ExternalResource
+   2. project_type_settings
+   3. project_type_project_modules
+   4. projectPartner
+   5. target
+   6. checklist_template_ProjectType
+
+   7. grading_report_template
+   8. milestone_activity_template_ProjectType
+   9. ApplicationPeriodProjectType
+
+   10. user_profile_ProjectType
+
+   11. idea
+   12. project
+
+   B. Fix table ProjectType
+
+   C. Recreate FK for following tables without fixing the table.
+   1. idea
+   2. project
+
+ */