Fix get comments children

src/main/kotlin/fr/dcproject/entity/Comment.kt

@@ -38,4 +38,4 @@ open class Comment<T : TargetI>(
 
 open class CommentRef(id: UUID = UUID.randomUUID()) : CommentS(id)
 
-sealed class CommentS(id: UUID) : UuidEntity(id)
+sealed class CommentS(id: UUID) : TargetRef(id)

src/main/kotlin/fr/dcproject/entity/Extra.kt

@@ -42,9 +42,7 @@ interface TargetI : UuidEntityI {
         fun getReference(t: TargetI): String {
             val ref = this.getReference(t::class)
             return if (t is ExtraI<*>) {
-                ref +
-                        "_on_" +
-                        t.target.reference
+                "${ref}_on_${t.target.reference}"
             } else {
                 ref
             }

src/main/kotlin/fr/dcproject/repository/Comment.kt

@@ -104,6 +104,20 @@ class CommentGeneric(requester: Requester) : Comment<TargetRef>(requester) {
                 )
         }
     }
+
+    override fun findByParent(
+        parentId: UUID,
+        page: Int,
+        limit: Int
+    ): Paginated<CommentEntity<TargetRef>> {
+        return requester.run {
+            getFunction("find_comments_by_parent")
+                .select(
+                    page, limit,
+                    "parent_id" to parentId
+                )
+        }
+    }
 }
 
 class CommentArticle(requester: Requester) : Comment<ArticleRef>(requester) {