first commit

backend/apps/farms/serializers.py

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+from rest_framework import serializers
+
+from apps.accounts.serializers import PkAsIdMixin
+from apps.farms.models import Cycle, Flock, Kandang, Site
+
+
+class SiteSerializer(PkAsIdMixin, serializers.ModelSerializer):
+    class Meta:
+        model = Site
+        fields = ["id", "site_name", "user", "created_at", "updated_at"]
+        read_only_fields = ["id", "created_at", "updated_at"]
+
+
+class KandangSerializer(PkAsIdMixin, serializers.ModelSerializer):
+    class Meta:
+        model = Kandang
+        fields = ["id", "kandang_name", "site", "created_at", "updated_at"]
+        read_only_fields = ["id", "created_at", "updated_at"]
+
+
+class FlockSerializer(PkAsIdMixin, serializers.ModelSerializer):
+    class Meta:
+        model = Flock
+        fields = ["id", "flock_name", "cycle", "created_at", "updated_at"]
+        read_only_fields = ["id", "created_at", "updated_at"]
+
+
+class CycleSerializer(PkAsIdMixin, serializers.ModelSerializer):
+    kandang = serializers.PrimaryKeyRelatedField(queryset=Kandang.objects.all())
+    flock = serializers.SerializerMethodField()
+    chick_in_weight = serializers.IntegerField(source="doc_in_weight")
+    current_day = serializers.IntegerField(read_only=True)
+
+    class Meta:
+        model = Cycle
+        fields = [
+            "id",
+            "kandang",
+            "flock",
+            "total_days",
+            "current_day",
+            "start_date",
+            "end_date",
+            "chick_in_weight",
+            "doc_in_count",
+            "feed_initial_balance",
+            "status",
+            "created_at",
+            "updated_at",
+        ]
+        read_only_fields = ["id", "flock", "feed_initial_balance", "created_at", "updated_at"]
+
+    def get_flock(self, obj):
+        flock = obj.flocks.order_by("flock_id").first()
+        return flock.pk if flock is not None else None
+
+    def create(self, validated_data):
+        kandang = validated_data["kandang"]
+        cycle = Cycle.objects.create(**validated_data)
+        Flock.objects.create(flock_name=kandang.kandang_name[:30], cycle=cycle)
+        return cycle