InvenTree/InvenTree/order/serializers.py

"""
JSON serializers for the Order API
"""

# -*- coding: utf-8 -*-
from __future__ import unicode_literals

from rest_framework import serializers

from django.db.models import Count

from InvenTree.serializers import InvenTreeModelSerializer
from company.serializers import CompanyBriefSerializer
from part.serializers import PartBriefSerializer

from .models import PurchaseOrder, PurchaseOrderLineItem
from .models import SalesOrder, SalesOrderLineItem


class POSerializer(InvenTreeModelSerializer):
    """ Serializer for a PurchaseOrder object """

    def __init__(self, *args, **kwargs):

        supplier_detail = kwargs.pop('supplier_detail', False)

        super().__init__(*args, **kwargs)

        if supplier_detail is not True:
            self.fields.pop('supplier_detail')

    @staticmethod
    def annotate_queryset(queryset):
        """
        Add extra information to the queryset
        """

        return queryset.annotate(
            line_items=Count('lines'),
        )

    supplier_detail = CompanyBriefSerializer(source='supplier', many=False, read_only=True)
    
    line_items = serializers.IntegerField(read_only=True)

    status_text = serializers.CharField(source='get_status_display', read_only=True)

    class Meta:
        model = PurchaseOrder
        
        fields = [
            'pk',
            'issue_date',
            'complete_date',
            'creation_date',
            'description',
            'line_items',
            'link',
            'reference',
            'supplier',
            'supplier_detail',
            'supplier_reference',
            'status',
            'status_text',
            'notes',
        ]
        
        read_only_fields = [
            'reference',
            'status'
        ]


class POLineItemSerializer(InvenTreeModelSerializer):

    class Meta:
        model = PurchaseOrderLineItem

        fields = [
            'pk',
            'quantity',
            'reference',
            'notes',
            'order',
            'part',
            'received',
        ]


class SalesOrderSerializer(InvenTreeModelSerializer):
    """
    Serializers for the SalesOrder object
    """

    def __init__(self, *args, **kwargs):

        customer_detail = kwargs.pop('customer_detail', False)

        super().__init__(*args, **kwargs)

        if customer_detail is not True:
            self.fields.pop('customer_detail')

    @staticmethod
    def annotate_queryset(queryset):
        """
        Add extra information to the queryset
        """

        return queryset.annotate(
            line_items=Count('lines'),
        )

    customer_detail = CompanyBriefSerializer(source='customer', many=False, read_only=True)

    line_items = serializers.IntegerField(read_only=True)

    status_text = serializers.CharField(source='get_status_display', read_only=True)

    class Meta:
        model = SalesOrder

        fields = [
            'pk',
            'issue_date',
            'complete_date',
            'creation_date',
            'description',
            'line_items',
            'link',
            'reference',
            'customer',
            'customer_detail',
            'customer_reference',
            'status',
            'status_text',
            'notes',
        ]

        read_only_fields = [
            'reference',
            'status'
        ]


class SOLineItemSerializer(InvenTreeModelSerializer):
    """ Serializer for a SalesOrderLineItem object """

    def __init__(self, *args, **kwargs):

        part_detail = kwargs.pop('part_detail', False)
        order_detail = kwargs.pop('order_detail', False)

        super().__init__(*args, **kwargs)

        if part_detail is not True:
            self.fields.pop('part_detail')

        if order_detail is not True:
            self.fields.pop('order_detail')

    order_detail = SalesOrderSerializer(source='order', many=False, read_only=True)
    part_detail = PartBriefSerializer(source='part', many=False, read_only=True)

    class Meta:
        model = SalesOrderLineItem

        fields = [
            'pk',
            'quantity',
            'reference',
            'notes',
            'order',
            'order_detail',
            'part',
            'part_detail',
        ]