diff --git a/build.gradle.kts b/build.gradle.kts
index 535e72de..3eb48ef6 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -221,13 +221,4 @@ spotless {
                 ),
             )
     }
-    kotlinGradle {
-        ktlint("1.3.0")
-            .editorConfigOverride(
-                mapOf(
-                    "max_line_length" to "256",
-                    "insert_final_newline" to "true",
-                ),
-            )
-    }
 }
diff --git a/src/commonMain/kotlin/com.github.ikovalyov.model/Comment.kt b/src/commonMain/kotlin/com.github.ikovalyov.model/Comment.kt
new file mode 100644
index 00000000..a200608d
--- /dev/null
+++ b/src/commonMain/kotlin/com.github.ikovalyov.model/Comment.kt
@@ -0,0 +1,97 @@
+@file:UseSerializers(UuidSerializer::class)
+
+package com.github.ikovalyov.model
+
+import com.benasher44.uuid.Uuid
+import com.benasher44.uuid.uuidFrom
+import com.github.ikovalyov.model.markers.IEditable
+import com.github.ikovalyov.model.security.User
+import com.github.ikovalyov.model.serializer.UuidSerializer
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.UseSerializers
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
+
+@Serializable
+data class Comment(override val id: Uuid, val body: String, val author: User, val article: Article, val userList: List<User>, val articleList: List<Article>) : IEditable {
+    override fun getMetadata(): List<IEditable.EditableMetadata<*, out IEditable>> = listOf(
+        IEditable.EditableMetadata(
+            fieldType = IEditable.FieldType.Id,
+            readOnly = true,
+            serialize = {
+                it.toString()
+            },
+            deserialize = {
+                uuidFrom(it)
+            },
+            update = {
+                copy(id = it)
+            },
+            get = {
+                id
+            },
+            fieldName = "Id",
+            predefinedList = null,
+        ),
+        IEditable.EditableMetadata(
+            fieldType = IEditable.FieldType.Body,
+            readOnly = true,
+            serialize = {
+                it
+            },
+            deserialize = {
+                it
+            },
+            update = {
+                copy(body = it)
+            },
+            get = {
+                body
+            },
+            fieldName = "Body",
+            predefinedList = null,
+        ),
+        IEditable.EditableMetadata(
+            fieldType = IEditable.FieldType.Author,
+            readOnly = false,
+            serialize = {
+                it.id.toString()
+            },
+            deserialize = { uuid ->
+                userList.first {
+                    it.id.toString() == uuid
+                }
+            },
+            update = {
+                copy(author = it)
+            },
+            get = {
+                author
+            },
+            fieldName = "Author",
+            predefinedList = userList,
+        ),
+        IEditable.EditableMetadata(
+            fieldType = IEditable.FieldType.Article,
+            readOnly = false,
+            serialize = {
+                it.id.toString()
+            },
+            deserialize = { uuid ->
+                articleList.first {
+                    it.id.toString() == uuid
+                }
+            },
+            update = {
+                copy(article = it)
+            },
+            get = {
+                article
+            },
+            fieldName = "Author",
+            predefinedList = articleList,
+        ),
+    )
+
+    override fun serialize(): String = Json.encodeToString(this)
+}
diff --git a/src/commonMain/kotlin/com.github.ikovalyov.model/markers/IEditable.kt b/src/commonMain/kotlin/com.github.ikovalyov.model/markers/IEditable.kt
index 32a78f3b..a2f941fc 100644
--- a/src/commonMain/kotlin/com.github.ikovalyov.model/markers/IEditable.kt
+++ b/src/commonMain/kotlin/com.github.ikovalyov.model/markers/IEditable.kt
@@ -3,7 +3,6 @@ package com.github.ikovalyov.model.markers
 import com.benasher44.uuid.Uuid
 import com.github.ikovalyov.model.security.User
 import kotlinx.datetime.Instant
-import kotlinx.serialization.ExperimentalSerializationApi
 
 interface IEditable {
     data class EditableMetadata<F : Any, I : IEditable>(
@@ -19,8 +18,6 @@ interface IEditable {
 
     sealed class FieldType<T : Any> {
         object Id : FieldType<Uuid>()
-
-        @OptIn(ExperimentalSerializationApi::class)
         object Author : FieldType<User>()
         object LastModified : FieldType<Instant>()
         object Body : FieldType<String>()
@@ -33,9 +30,8 @@ interface IEditable {
         object StringListFiledType : FieldType<List<String>>()
         object Tags : FieldType<List<String>>()
         object Metadata : FieldType<List<String>>()
-
-        @OptIn(ExperimentalSerializationApi::class)
         object Template : FieldType<com.github.ikovalyov.model.Template>()
+        object Article : FieldType<com.github.ikovalyov.model.Article>()
     }
 
     val id: Uuid
@@ -48,14 +44,14 @@ fun <T : IEditable, F : Any> T.updateField(field: IEditable.EditableMetadata<F,
     return field.update(this, data)
 }
 
-fun <T : IEditable, F : Any> T.getFieldValueAsString(field: IEditable.EditableMetadata<F, T>): String? {
+fun <T : IEditable, F : Any> getFieldValueAsString(field: IEditable.EditableMetadata<F, T>): String? {
     val fieldValue = field.get()
     return fieldValue?.let {
         field.serialize(it)
     }
 }
 
-fun <T : IEditable, F : Any> T.getPredefinedValuesAsStrings(field: IEditable.EditableMetadata<F, T>): Map<String, String> {
+fun <T : IEditable, F : Any> getPredefinedValuesAsStrings(field: IEditable.EditableMetadata<F, T>): Map<String, String> {
     val fieldValues = field.predefinedList
     return fieldValues?.associate {
         it.hashCode().toString() to field.serialize(it)
diff --git a/src/jsMain/kotlin/com.github.ikovalyov/react/components/template/TemplateEdit.kt b/src/jsMain/kotlin/com.github.ikovalyov/react/components/template/TemplateEdit.kt
index 3c0b0658..340fb1e0 100644
--- a/src/jsMain/kotlin/com.github.ikovalyov/react/components/template/TemplateEdit.kt
+++ b/src/jsMain/kotlin/com.github.ikovalyov/react/components/template/TemplateEdit.kt
@@ -88,7 +88,7 @@ class TemplateEdit<I : IEditable>(props: ItemEditProps<I>, private val initialSt
                                     name = it.hashCode().toString()
                                     readOnly = it.readOnly
                                     if (!it.readOnly) {
-                                        defaultValue = state.item.getFieldValueAsString(it)
+                                        defaultValue = getFieldValueAsString(it)
                                         onChange =
                                             { event ->
                                                 launch {
@@ -101,7 +101,7 @@ class TemplateEdit<I : IEditable>(props: ItemEditProps<I>, private val initialSt
                                                 }
                                             }
                                     } else {
-                                        value = state.item.getFieldValueAsString(it)
+                                        value = getFieldValueAsString(it)
                                     }
                                 }
                             } else {
@@ -111,7 +111,7 @@ class TemplateEdit<I : IEditable>(props: ItemEditProps<I>, private val initialSt
                                     if (!it.readOnly) {
                                         val storedObject = it.get()
                                         if (storedObject != null) {
-                                            defaultValue = state.item.getFieldValueAsString(it)
+                                            defaultValue = getFieldValueAsString(it)
                                         }
                                         onChange =
                                             { event ->
@@ -119,7 +119,7 @@ class TemplateEdit<I : IEditable>(props: ItemEditProps<I>, private val initialSt
                                                 state.item =
                                                     state.item.updateField(field = it, serializedData = stringValue)
                                             }
-                                        val optionsList = state.item.getPredefinedValuesAsStrings(it)
+                                        val optionsList = getPredefinedValuesAsStrings(it)
                                         optionsList.forEach {
                                             option {
                                                 value = it.key
diff --git a/src/jsMain/kotlin/com.github.ikovalyov/react/components/template/TemplateInsert.kt b/src/jsMain/kotlin/com.github.ikovalyov/react/components/template/TemplateInsert.kt
index 62aa0a3c..953e1196 100644
--- a/src/jsMain/kotlin/com.github.ikovalyov/react/components/template/TemplateInsert.kt
+++ b/src/jsMain/kotlin/com.github.ikovalyov/react/components/template/TemplateInsert.kt
@@ -96,7 +96,7 @@ class TemplateInsert<I : IEditable>(props: TemplateInsertProps<I>, initialState:
                                         }
                                     }
                                 } else {
-                                    value = state.currentItem.getFieldValueAsString(it)
+                                    value = getFieldValueAsString(it)
                                 }
                             }
                         } else {
@@ -106,7 +106,7 @@ class TemplateInsert<I : IEditable>(props: TemplateInsertProps<I>, initialState:
                                 if (!it.readOnly) {
                                     val storedObject = it.get()
                                     if (storedObject != null) {
-                                        defaultValue = state.currentItem.getFieldValueAsString(it)
+                                        defaultValue = getFieldValueAsString(it)
                                     }
                                     onChange =
                                         { event ->
@@ -119,7 +119,7 @@ class TemplateInsert<I : IEditable>(props: TemplateInsertProps<I>, initialState:
                                                     )
                                             }
                                         }
-                                    val optionsList = state.currentItem.getPredefinedValuesAsStrings(it)
+                                    val optionsList = getPredefinedValuesAsStrings(it)
                                     optionsList.forEach {
                                         ReactHTML.option {
                                             value = it.key
diff --git a/src/jsMain/kotlin/com.github.ikovalyov/react/components/template/TemplateView.kt b/src/jsMain/kotlin/com.github.ikovalyov/react/components/template/TemplateView.kt
index 7a65725c..2d5651b4 100644
--- a/src/jsMain/kotlin/com.github.ikovalyov/react/components/template/TemplateView.kt
+++ b/src/jsMain/kotlin/com.github.ikovalyov/react/components/template/TemplateView.kt
@@ -44,7 +44,7 @@ class TemplateView<I : IEditable>(props: TemplateViewProps<I>, state: TemplateVi
             fields.forEach {
                 section {
                     h1 { +it.fieldType::class.simpleName!! }
-                    p { +(state.item.getFieldValueAsString(it) ?: "") }
+                    p { +(getFieldValueAsString(it) ?: "") }
                 }
             }
             buttonChild<I> {
diff --git a/src/jsMain/kotlin/com.github.ikovalyov/react/components/template/table/Table.kt b/src/jsMain/kotlin/com.github.ikovalyov/react/components/template/table/Table.kt
index d6bc9189..091f4cff 100644
--- a/src/jsMain/kotlin/com.github.ikovalyov/react/components/template/table/Table.kt
+++ b/src/jsMain/kotlin/com.github.ikovalyov/react/components/template/table/Table.kt
@@ -67,7 +67,7 @@ private fun <T : IEditable> buildTableColumns(componentProps: TableProps<T>, ite
 
             accessorFn = { row, _ ->
                 val itemMetadata = row.getMetadata().filterIsInstance<IEditable.EditableMetadata<*, T>>()[counter]
-                val str = row.getFieldValueAsString(itemMetadata) ?: ""
+                val str = getFieldValueAsString(itemMetadata) ?: ""
                 if (str.length > 128) {
                     str.substring(0, 128)
                 } else {