Linq on Repository #4323 | Support Center

itzoar2 created 7 years ago

Hi all

My Domain is in

[Table("Client")] public class Client : FullAuditedEntity<int,User> { public string Name { get; set; } public string NameEn { get; set; } public string ShortName { get; set; } public string Address { get; set; } public string AddressEn { get; set; } public string Website { get; set; } public string SocialCreditCode { get; set; } public DateTimeOffset? Registration { get; set; } public DateTimeOffset? ValidUntil { get; set; } public decimal? OperationYear { get; set; } public decimal? Capital { get; set; } public string Representative { get; set; } public string MainProduct { get; set; } public int? CheckDate { get; set; }

    [ForeignKey("Type_Id")]
    public CompanyType Type { get; set; }
    public int? Type_Id { get; set; }

    [ForeignKey("Nature_Id")]
    public BusinessNature Nature { get; set; }
    public int? Nature_Id { get; set; }

    [ForeignKey("PurchasePerson_Id")]
    public ClientContact PurchasePerson { get; set; }
    public int? PurchasePerson_Id { get; set; }

    [ForeignKey("PurchaseManager_Id")]
    public ClientContact PurchaseManager { get; set; }
    public int? PurchaseManager_Id { get; set; }

    [ForeignKey("ContactPerson_Id")]
    public User ContactPerson { get; set; }
    public long? ContactPerson_Id { get; set; }

    public List&lt;Counterparty&gt; Counterparty { get; set; }
    public List&lt;ClientContact&gt; ClientContact { get; set; }
    public bool Disuse { get; set; }

For the service layer, how do i get a GetAllClient LINQ , if i have one to many relationship between Client and Counterparty.

Please advise. Thanks a lot

9 Answer(s)

aaron created 7 years ago

Support Team

var clients = _clientRepository
        .GetAllIncluding(client => client.Counterparty)
        .ToList();

0

itzoar2 created 7 years ago

What if i also want to include counterparty ? Use &&?
0

itzoar2 created 7 years ago

seems like if i want to include 2 different collection list

i should use from c in _clientRepository.GetAllIncluding(client => client.Counterparty , bb =>bb.ContactPerson)
0

aaron created 7 years ago
Support Team

That's correct. GetAllIncluding accepts params, so simply use one or more commas.

itzoar2 created 7 years ago

Now when i try to do a left outer join with other repo,

The GetAllIncluding doesn't work

if i don't have the join, it works like a champ?

Do you have any idea? Thanks

                var query = (from c in _clientRepository.GetAllIncluding(co => co.Counterparty, cc => cc.ClientContact)
                             join ct in _companyTypeRepository.GetAll() on c.Type_Id equals ct.Id into allType
                             from c1 in allType.DefaultIfEmpty()
                             join bn in _businessNatureRepository.GetAll() on c.Nature_Id equals bn.Id into allNature
                             from c2 in allNature.DefaultIfEmpty()
                             join pm in _clientContactRepository.GetAll() on c.PurchaseManager_Id equals pm.Id into allPMgr
                             from c3 in allPMgr.DefaultIfEmpty()
                             join pp in _clientContactRepository.GetAll() on c.PurchasePerson_Id equals pp.Id into allPPerson
                             from c4 in allPPerson.DefaultIfEmpty()
                             join cp in _userRepository.GetAll() on c.ContactPerson_Id equals cp.Id into allContactPerson
                             from c5 in allContactPerson.DefaultIfEmpty()
                             select c).ToList();

itzoar2 created 7 years ago

if i break down to 2 linq query, it will work

                var query = (from q in _clientRepository.GetAllIncluding(dd => dd.Counterparty, ee => ee.ClientContact)
                             select q).ToList();


                query = (from c in query
                         join ct in _companyTypeRepository.GetAllList() on c.Type_Id equals ct.Id into allType
                         from c1 in allType.DefaultIfEmpty()
                         join bn in _businessNatureRepository.GetAllList() on c.Nature_Id equals bn.Id into allNature
                         from c2 in allNature.DefaultIfEmpty()
                         join pm in _clientContactRepository.GetAllList() on c.PurchaseManager_Id equals pm.Id into allPMgr
                         from c3 in allPMgr.DefaultIfEmpty()
                         join pp in _clientContactRepository.GetAllList() on c.PurchasePerson_Id equals pp.Id into allPPerson
                         from c4 in allPPerson.DefaultIfEmpty()
                         join cp in _userRepository.GetAllList() on c.ContactPerson_Id equals cp.Id into allContactPerson
                         from c5 in allContactPerson.DefaultIfEmpty()
                         select c).ToList();

aaron created 7 years ago

Support Team

Just include:

var clients = _clientRepository
        .GetAllIncluding(
            c => c.Counterparty,
            c => c.ClientContact,
            c => c.Type,
            c => c.Nature,
            c => c.PurchaseManager,
            c => c.PurchasePerson,
            c => c.ContactPerson)
        .ToList();

0

bbakermmc created 7 years ago

Why not just make a new method in the repo to return what you want. If your tables have alot of data youre going to return the entire set as a list first then join. Its pretty bad performance.
0

itzoar2 created 7 years ago

Thanks my problem is solved

Also, it is fine, my data is small , so performance should be ok. THanks

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