InvenTree/InvenTree/stock/serializers.py

from rest_framework import serializers

from .models import StockItem, StockLocation
from .models import StockItemTracking

from part.serializers import PartBriefSerializer
from InvenTree.serializers import UserSerializerBrief


class LocationBriefSerializer(serializers.ModelSerializer):
    """
    Provides a brief serializer for a StockLocation object
    """

    url = serializers.CharField(source='get_absolute_url', read_only=True)

    class Meta:
        model = StockLocation
        fields = [
            'pk',
            'name',
            'pathstring',
            'url',
        ]


class StockTrackingSerializer(serializers.ModelSerializer):

    url = serializers.CharField(source='get_absolute_url', read_only=True)

    user = UserSerializerBrief(many=False, read_only=True)

    class Meta:
        model = StockItemTracking
        fields = [
            'pk',
            'url',
            'item',
            'date',
            'title',
            'notes',
            'quantity',
            'user',
            'system',
        ]

        read_only_fields = [
            'date',
            'user',
            'system',
            'quantity',
        ]


class StockItemSerializer(serializers.ModelSerializer):
    """
    Serializer for a StockItem
    - Includes serialization for the linked part
    - Includes serialization for the item location
    """

    url = serializers.CharField(source='get_absolute_url', read_only=True)

    part = PartBriefSerializer(many=False, read_only=True)
    location = LocationBriefSerializer(many=False, read_only=True)

    class Meta:
        model = StockItem
        fields = [
            'pk',
            'uuid',
            'url',
            'part',
            'supplier_part',
            'location',
            'in_stock',
            'quantity',
            'serial',
            'batch',
            'status',
            'notes',
        ]

        """ These fields are read-only in this context.
        They can be updated by accessing the appropriate API endpoints
        """
        read_only_fields = [
            'stocktake_date',
            'stocktake_user',
            'updated',
            'quantity',
            'in_stock'
        ]


class StockQuantitySerializer(serializers.ModelSerializer):

    class Meta:
        model = StockItem
        fields = ('quantity',)


class LocationSerializer(serializers.ModelSerializer):
    """ Detailed information about a stock location
    """

    url = serializers.CharField(source='get_absolute_url', read_only=True)

    class Meta:
        model = StockLocation
        fields = [
            'pk',
            'url',
            'name',
            'description',
            'parent',
            'pathstring'
        ]