add mapping to json

Swift/Class.swift.twig

@@ -2,6 +2,7 @@
 
 {%- set className = utils.formatClassType(type.baseTypeName, type.typeParameters) -%}
 {%- set parentClassName = utils.formatClassType(utils.parentClassType(parent), type.parentTypeParameters) -%}
+{%- set hasParent = parent is not null -%}
 
 import ObjectMapper
 
@@ -13,9 +14,17 @@ import ObjectMapper
     // MARK: - Initializer
 
     required init(map: Map) throws {
-        {%- include 'blocks/class/fields-mapping.twig' with { fields: fields } -%}
-        {% if parent is not null %}
+        {%- include 'blocks/class/fields-mapping-from-map.twig' with { fields: fields } -%}
+        {% if hasParent %}
         try super.init(map: map)
         {%- endif %}
     }
+
+    {% if hasParent %} override {% endif %}func mapping(map: Map) {
+        {%- include 'blocks/class/fields-mapping-to-map.twig' with { fields: fields } -%}
+        {% if hasParent %}
+        super.mapping(map: map)
+        {%- endif %}
+    }
+
 }

Swift/blocks/class/fields-mapping-from-map.twig

@@ -1,4 +1,4 @@
 {%- import '../../utils.twig' as utils -%}
         {%- for field in fields %}
-        {{ field.name }} = {{ utils.formatNullable('try', field.nullable) }} {{ utils.mappingForField(field, className) }}
+        {{ field.name }} = {{ utils.formatNullable('try', field.nullable) }} {{ utils.mappingFromMapForField(field, className) }}
 {%- endfor -%}

Swift/blocks/class/fields-mapping-to-map.twig

@@ -0,0 +1,4 @@
+{%- import '../../utils.twig' as utils -%}
+        {%- for field in fields %}
+        {{ field.name }} >>> {{ utils.mappingToMapForField(field, className) }}
+{%- endfor -%}

Swift/utils.twig

@@ -41,10 +41,18 @@ Date
 {%- endif -%}
 {% endmacro %}
 
-{% macro mappingForField(field, className) %}
+{% macro mappingFromMapForField(field, className) %}
 {%- if field.type.type.baseTypeName == "DateTime" -%}
 map.value("{{ field.jsonName }}", using: {{ className -}}.{{- field.name -}}Transform)
 {%- else -%}
 map.value("{{ field.jsonName }}")
 {%- endif -%}
 {% endmacro %}
+
+{% macro mappingToMapForField(field, className) %}
+{%- if field.type.type.baseTypeName == "DateTime" -%}
+(map["{{ field.jsonName }}"], {{ className -}}.{{- field.name -}}Transform)
+{%- else -%}
+map["{{ field.jsonName }}"]
+{%- endif -%}
+{% endmacro %}