Add fertilization plan merge workflow

backend/apps/fertilizer/serializers.py

@@ -74,6 +74,7 @@ class FertilizationPlanSerializer(serializers.ModelSerializer):
     spread_status = serializers.SerializerMethodField()
     is_confirmed = serializers.BooleanField(read_only=True)
     confirmed_at = serializers.DateTimeField(read_only=True)
+    is_variety_change_plan = serializers.SerializerMethodField()
 
     class Meta:
         model = FertilizationPlan
@@ -94,6 +95,7 @@ class FertilizationPlanSerializer(serializers.ModelSerializer):
             'spread_status',
             'is_confirmed',
             'confirmed_at',
+            'is_variety_change_plan',
             'created_at',
             'updated_at',
         ]
@@ -134,6 +136,9 @@ class FertilizationPlanSerializer(serializers.ModelSerializer):
             return 'partial'
         return 'completed'
 
+    def get_is_variety_change_plan(self, obj):
+        return obj.name.endswith('（品種変更移動）')
+
 
 class FertilizationPlanWriteSerializer(serializers.ModelSerializer):
     entries = serializers.ListField(child=serializers.DictField(), write_only=True, required=False)