save before flutter upgrade

lib/models/form_custom_field.dart

@@ -0,0 +1,73 @@
+import 'dart:convert';
+
+import 'package:flutter/material.dart';
+import 'package:flutter/widgets.dart';
+
+class FormCustomField {
+  int? formId;
+  int? fillId;
+  int fieldId;
+  String fieldName;
+  String? fieldType;
+  String? fieldIcon;
+  IconData? fieldIconData;
+  bool? fieldVisible;
+  int? fieldOrder;
+  List<String>? enumValues;
+  bool? enumVisible;
+  int? fieldValueId;
+  String? fieldValue;
+  List<String> fieldValues = [];
+  TextEditingController textEditingController = TextEditingController();
+
+  FormCustomField({
+    this.formId,
+    this.fillId,
+    required this.fieldId,
+    required this.fieldName,
+    this.fieldType,
+    this.fieldIcon,
+    this.fieldIconData,
+    this.fieldVisible,
+    this.fieldOrder,
+    this.enumValues,
+    this.enumVisible,
+    this.fieldValueId,
+    this.fieldValue,
+  });
+
+  factory FormCustomField.fromJson(String str) => FormCustomField.fromMap(json.decode(str));
+
+  String toJson() => json.encode(toMap());
+
+  factory FormCustomField.fromMap(Map<String, dynamic> json) => FormCustomField(
+        formId: json["form_id"],
+        fillId: json["fill_id"],
+        fieldId: json["field_id"],
+        fieldName: json["field_name"],
+        fieldType: json["field_type"],
+        fieldIconData: json["field_icon"] != null ? IconData(int.parse(json["field_icon"]), fontFamily: 'MaterialIcons') : null,
+        fieldIcon: json["field_icon"],
+        fieldVisible: json["field_visible"],
+        fieldOrder: json["field_order"],
+        fieldValueId: json["field_value_id"],
+        fieldValue: json["field_value"],
+        enumValues: json["enum_values"] == null ? [] : List<String>.from(json["enum_values"]!.map((x) => x)),
+        enumVisible: json["enum_visible"],
+      );
+
+  Map<String, dynamic> toMap() => {
+        "form_id": formId,
+        "fill_id": fillId,
+        "field_id": fieldId,
+        "field_name": fieldName,
+        "field_type": fieldType,
+        "field_icon": fieldIcon,
+        "field_visible": fieldVisible,
+        "field_order": fieldOrder,
+        "field_value_id": fieldValueId,
+        "field_value": fieldValue,
+        "enum_values": enumValues == null ? [] : List<dynamic>.from(enumValues!.map((x) => x)),
+        "enum_visible": enumVisible,
+      };
+}