barely functional database with hive

lib/models/ingredient.dart

@@ -11,6 +11,18 @@ class Ingredient {
     this.preferredBrands = const [],
   });
 
+  factory Ingredient.fromJson(Map<String, dynamic> json) => Ingredient(
+        title: json['title'] as String,
+        possibleUnits: _unitsFromJson(json['possibleUnits']),
+        preferredBrands: json['preferredBrands'] as List<String>,
+      );
+
+  Map<String, dynamic> toJson() => {
+        'title': title,
+        'possibleUnits': possibleUnits.map((e) => e.toJson()).toList(),
+        'preferredBrands': preferredBrands,
+      };
+
   @override
   bool operator ==(other) {
     Ingredient i = other as Ingredient;
@@ -21,4 +33,7 @@ class Ingredient {
   int get hashCode {
     return Object.hash(title, null);
   }
+
+  static List<Unit> _unitsFromJson(List<Map<String, dynamic>> jsonList) =>
+      jsonList.map((e) => Unit.fromJson(e)).toList();
 }