// Get One housing unit with Tenants
        // DEFAULT
        // RETURNS ONE HOUSING UNIT WITH: Tenants with Batch, Contact, Gender, and Car Relationship
        public HousingUnitTenantInfoMapper GetHousingUnitWithTenants(int housingUnitId)
        {
            var content = db.HousingUnits.Where(j => j.housingUnitId == housingUnitId).FirstOrDefault();

            if (content == null)
            {
                return(null);
            }
            else
            {
                AddressesHelper             address     = new AddressesHelper();
                TenantsHelper               tenants     = new TenantsHelper();
                HousingUnitTenantInfoMapper housingUnit = new HousingUnitTenantInfoMapper()
                {
                    HousingUnitId    = content.housingUnitId,
                    ProviderId       = content.providerId ?? 0,
                    AddressId        = content.addressId ?? 0,
                    HousingSignature = content.housingSignature,
                    Capacity         = content.capacity,

                    Address = address.GetAddress(content.addressId ?? 0),
                    Tenants = tenants.GetTenantsWithInfoByHousing(content.housingUnitId)
                };
                return(housingUnit);
            }
        }
        // Get All housing units with Tenants
        // DEFAULT
        // RETURNS ALL THE HOUSING UNITS WITH: Tenants with Batch, Contact, Gender, and Car Relationship
        public IEnumerable <HousingUnitTenantInfoMapper> GetHousingUnitsWithTenants()
        {
            var content = db.HousingUnits.Where(j => j.housingUnitId != 0).ToList();

            if (content.Count() == 0)
            {
                return(null);
            }
            else
            {
                List <HousingUnitTenantInfoMapper> housingUnits = new List <HousingUnitTenantInfoMapper>();
                AddressesHelper address = new AddressesHelper();
                TenantsHelper   tenants = new TenantsHelper();
                foreach (var item in content)
                {
                    HousingUnitTenantInfoMapper housingUnit = new HousingUnitTenantInfoMapper()
                    {
                        HousingUnitId    = item.housingUnitId,
                        ProviderId       = item.providerId ?? 0,
                        AddressId        = item.addressId ?? 0,
                        HousingSignature = item.housingSignature,
                        Capacity         = item.capacity,

                        Address = address.GetAddress(item.addressId ?? 0),
                        Tenants = tenants.GetTenantsWithInfoByHousing(item.housingUnitId)
                    };
                    housingUnits.Add(housingUnit);
                }
                return(housingUnits);
            }
        }