# Path: app/timetables/models.py
# class Vendor(SlugifyMixin, models.Model):
#     """Model representing food service-provider."""
# 
#     name = models.CharField(max_length=255, verbose_name="Vendor Name")
#     slug = models.SlugField(max_length=255, unique=True, editable=False)
#     info = models.TextField(blank=True)
# 
#     slugify_field = 'name'
# 
#     def is_vendor_serving(self, timetable, date):
#         query = (models.Q(timetable=timetable, vendor=self, end_date__gte=date)
#                  | models.Q(timetable=timetable, vendor=self, end_date=None))
#         return VendorService.objects.filter(query).exists()
# 
#     def __str__(self):
#         return self.name
# 
# Path: app/api/cruds/utils.py
# def get_errors(e):
#     # transform django errors to redux errors
#     # django: {"key1": [value1], {"key2": [value2]}}
#     # redux: ["key1", "value1", "key2", "value2"]
#     fields = e.message_dict.keys()
#     messages = ['; '.join(m) for m in e.message_dict.values()]
#     errors = [i for pair in zip(fields, messages) for i in pair]
#     return errors
# 
# def get_object(object_name, relayId, otherwise=None):
#     try:
#         return object_name.objects.get(pk=from_global_id(relayId)[1])
#     except:
#         return otherwise
# 
# def load_object(instance, args, exception=['id']):
#     if instance:
#         [setattr(instance, key, value) for key, value in args.items() if key not in exception]
# 
#     return instance


from django.core.exceptions import ValidationError
from graphene_django import DjangoObjectType
from django_filters import OrderingFilter, FilterSet
from app.timetables.models import Vendor
from .utils import get_errors, get_object, load_object
import graphene
    class Input:
        id = graphene.String(required=True)
        name = graphene.String(required=True)
        info = graphene.String(required=False)

    @classmethod
    def mutate_and_get_payload(cls, args, context, info):
        vendor = get_object(Vendor, args.get('id'))
        vendor = load_object(vendor, args)
        try:
            if vendor:
                vendor.full_clean()
                vendor.save()
            return cls(vendor=vendor)
        except ValidationError as e:
            return cls(vendor=vendor, errors=get_errors(e))


class DeleteVendor(graphene.relay.ClientIDMutation):
    """API functionality to delete vendors."""

    vendor = graphene.Field(VendorNode)
    deleted = graphene.Boolean()

    class Input:
        id = graphene.String(required=True)

    @classmethod
    def mutate_and_get_payload(cls, args, context, info):
        try:

# Path: app/timetables/models.py
# class Vendor(SlugifyMixin, models.Model):
#     """Model representing food service-provider."""
# 
#     name = models.CharField(max_length=255, verbose_name="Vendor Name")
#     slug = models.SlugField(max_length=255, unique=True, editable=False)
#     info = models.TextField(blank=True)
# 
#     slugify_field = 'name'
# 
#     def is_vendor_serving(self, timetable, date):
#         query = (models.Q(timetable=timetable, vendor=self, end_date__gte=date)
#                  | models.Q(timetable=timetable, vendor=self, end_date=None))
#         return VendorService.objects.filter(query).exists()
# 
#     def __str__(self):
#         return self.name
# 
# Path: app/api/cruds/utils.py
# def get_errors(e):
#     # transform django errors to redux errors
#     # django: {"key1": [value1], {"key2": [value2]}}
#     # redux: ["key1", "value1", "key2", "value2"]
#     fields = e.message_dict.keys()
#     messages = ['; '.join(m) for m in e.message_dict.values()]
#     errors = [i for pair in zip(fields, messages) for i in pair]
#     return errors
# 
# def get_object(object_name, relayId, otherwise=None):
#     try:
#         return object_name.objects.get(pk=from_global_id(relayId)[1])
#     except:
#         return otherwise
# 
# def load_object(instance, args, exception=['id']):
#     if instance:
#         [setattr(instance, key, value) for key, value in args.items() if key not in exception]
# 
#     return instance


# Path: app/api/cruds/vendor_crud.py
from django.core.exceptions import ValidationError
from graphene_django import DjangoObjectType
from django_filters import OrderingFilter, FilterSet
from app.timetables.models import Vendor
from .utils import get_errors, get_object, load_object
import graphene

    class Input:
        id = graphene.String(required=True)
        name = graphene.String(required=True)
        info = graphene.String(required=False)

    @classmethod
    def mutate_and_get_payload(cls, args, context, info):
        vendor = get_object(Vendor, args.get('id'))
        vendor = load_object(vendor, args)
        try:
            if vendor:
                vendor.full_clean()
                vendor.save()
            return cls(vendor=vendor)
        except ValidationError as e:
            return cls(vendor=vendor, errors=get_errors(e))


class DeleteVendor(graphene.relay.ClientIDMutation):
    """API functionality to delete vendors."""

    vendor = graphene.Field(VendorNode)
    deleted = graphene.Boolean()

    class Input:
        id = graphene.String(required=True)

    @classmethod
    def mutate_and_get_payload(cls, args, context, info):
        try:

            vendor = get_object(Vendor, args.get('id'))