I have two lists, list of Accounts and list of Transactions that represent below model. Let's assume they look like this:
List<Response.Account> accounts;
List<Response.Transaction> transactions;
And the model:
public class Response
{
public List<Account> Accounts { get; set; } = new List<Account>();
public class Account
{
public string AccountNumber { get; set; }
public long AvailableCredit { get; set; }
public double Balance { get; set; }
public long? CertainDate { get; set; }
public string CredentialsId { get; set; }
public string Id { get; set; }
public string Name { get; set; }
public string Type { get; set; }
public string UserId { get; set; }
public bool Closed { get; set; }
public List<Transaction> Transactions { get; set; } = new List<Transaction>();
}
public class Transaction
{
public string AccountId { get; set; }
public long Amount { get; set; }
public string CategoryId { get; set; }
public string CredentialsId { get; set; }
public long Date { get; set; }
public string Description { get; set; }
public string FormattedDescription { get; set; }
public string Id { get; set; }
public long Inserted { get; set; }
public long LastModified { get; set; }
public long OriginalAmount { get; set; }
public long OriginalDate { get; set; }
public string OriginalDescription { get; set; }
public long Timestamp { get; set; }
public string Type { get; set; }
public string UserId { get; set; }
}
}
To each Account class in Response class I want to assign a list of transactions by mapping Id from Account class and AccountId from Transaction class. I am aware I could do that by iterating over Accounts or Transactions and checking if both ids are equal and then assign to proper collection but that would cause nested iterations and I am not sure about its efficiency. What should I do? The only contraints in this model are those two lists in the beggining.
Related
I have a nested JSON data to be accessed. The data is structured into nested data which i want to have into one.
I modeled the JSON response into c# model classes
public class Customer1
{
public string district { get; set; }
public string feeder { get; set; }
public string feeder_code { get; set; }
public string transformer { get; set; }
public string dss_code { get; set; }
public string database_match { get; set; }
public string accountnumber { get; set; }
public string meterno { get; set; }
public TransactionalDetails transactional_details { get; set; }
}
public class Customer2
{
public string accountNumber { get; set; }
public string meterNumber { get; set; }
public string phoneNumber { get; set; }
public int billedAmount { get; set; }
public object billedDate { get; set; }
public string lastPayDate { get; set; }
public Lastpayment lastpayment { get; set; }
}
public class Lastpayment
{
public string transactionRef { get; set; }
public int units { get; set; }
public string transactionDate { get; set; }
public string transactionId { get; set; }
public int transactionBookId { get; set; }
public int amountPaid { get; set; }
public int mscPaid { get; set; }
public string invoiceNumber { get; set; }
}
public class Queryresult
{
public string responseMessage { get; set; }
public Customer1 customer1 { get; set; }
public int responseCode { get; set; }
public string status { get; set; }
}
public class Result
{
public ObservableCollection<Customer1> Customer1 { get; set; }
public int row_count { get; set; }
}
public class Root
{
public bool error { get; set; }
public Result result { get; set; }
}
public class TransactionalDetails
{
public Queryresult queryresult { get; set; }
public bool status { get; set; }
}
I also created the following code to access the data using the root.
var data = JsonConvert.DeserializeObject<root>(readTask);
ObservableCollection<Customer1> innerData2 = data.result.Customer1;
My challenge is that i want to have Customer1, Customer2 and last payment data merged into a single collection view.
with what i have done, i can only access customer1 data. how can i access all into a single collection?
I want to make the simple application to use with my PBX. I want to manage the providers and Lines tat connected to my PBX. The main objects are Provider and Line. Every provider has some lines connected to it. Lines can be added or deleted enabled or disabled and reserved. I want to keep the status of lines and history of actions in one table. Does this right solution or I need to create another table for history?
public class Line
{
public int LineId { get; set; }
public Provider Provider { get;set;}
public string Login { get; set; }
public string Pass { get; set; }
public string Domain { get; set; }
public string ProjectOwner { get; set; }
public string Project { get; set; }
public string OutNumber { get; set; }
public string InNumber { get; set; }
public string Description { get; set; }
public DateTime Begin_datetime { get; set; }
public DateTime End_datetime { get; set; }
public Human TechGuy { get; set; }
public Human Manager { get; set; }
}
public class Provider
{
public int ProviderId { get; set; }
public string Name { get; set; }
public string OurSideData { get; set; }
public string TheirSideData { get; set; }
public string Description { get; set; }
public DateTime Begin_datetime { get; set; }
public DateTime End_datetime { get; set; }
public Currency Currency { get; set; }
}
What is the best solution for the code first model creating in the logic like that? Maybe I need to add some additional fields?
You need another table for history. Something like:
public class Line
{
public int LineId { get; set; }
public virtual Provider Provider { get; set; }
public string Login { get; set; }
public string Pass { get; set; }
public string Domain { get; set; }
public string ProjectOwner { get; set; }
public string Project { get; set; }
public string OutNumber { get; set; }
public string InNumber { get; set; }
public string Description { get; set; }
public DateTime Begin_datetime { get; set; }
public DateTime End_datetime { get; set; }
public Human TechGuy { get; set; }
public Human Manager { get; set; }
public virtual ICollection<LineStatusHistory> ChangeHistory { get; } = new HashSet<LineStatusHistory>();
}
public class LineStatusHistory
{
[Key( )]
public int LineId { get; set; }
[Key()]
public int LineStatusHistoryId { get; set; }
public virtual Line Line { get; set; }
public DateTime ChangeDate { get; set; }
public string Change { get; set; }
}
public class Provider
{
public int ProviderId { get; set; }
public string Name { get; set; }
public string OurSideData { get; set; }
public string TheirSideData { get; set; }
public string Description { get; set; }
public DateTime Begin_datetime { get; set; }
public DateTime End_datetime { get; set; }
public Currency Currency { get; set; }
public virtual ICollection<Line> Lines { get; } = new HashSet<Line>();
}
In my store I have an orders table that captures the orders made by each customer. I want to be able to show the user what quantity of an item they have in their cart. Here is my orders model:
public class Order
{
public int Id { get; set; }
public ApplicationUser Customer { get; set; }
public string ShirtCause {get; set;}
public DateTime CreateDate { get; set; }
public ShirtSize ShirtSize { get; set; }
public ShirtQuantity ShirtQuantity { get; set; }
public decimal Total { get; set; }
public string ShirtYear { get; set; }
public int OrderNum { get; set; }
public bool? OrderCompleted { get; set; }
public bool? RecievedShirt { get; set; }
}
Using code first ShirtQuantity is created in a table and is reflected in the column ShirtQuantity_Id. For reference purposes, here is my quantity model:
public class ShirtQuantity
{
public int Id { get; set; }
public int Name { get; set; }
}
The cart should be output and enumerated in the action with:
return View(db.Orders.ToList());
All except for the Quantity_Id will list when calling
#model IEnumerable<ProjectName.Models.Order>
in the view. How do I get these quantities to list? I have tried creating a view model combining orders and shirtQuantities and calling it in the view:
public class ShirtOrdersViewModel
{
public int ShirtSizeId { get; set; }
public IEnumerable<ShirtSize> ShirtSizes { get; set; }
public int ShirtQuantityId { get; set; }
public IEnumerable<ShirtQuantity> ShirtQuantities { get; set; }
public int ShirtId { get; set; }
public IEnumerable<Shirt> Shirts { get; set; }
public int FileId { get; set; }
public IEnumerable<File> Files { get; set; }
public int OrderId { get; set; }
public IEnumerable<Order> Orders { get; set; }
public decimal Total { get; set; }
}
and this also does not work.
I have a statement in one of my entities which uses a foreign key to return an IEnumerable<CustomField>.
I have used LINQ in my repository to test the below method to see if it works and it does. But when I use the foreign key reference in the entity it returns null. Am I missing something here? How can I use a foreign key to gain access to the data in another entity.
Invoice entity:
[Table("vwinvoice")]
public class Invoice
{
[Key]
[DatabaseGenerated(System.ComponentModel.DataAnnotations.Schema.DatabaseGeneratedOption.Identity)]
public int Sys_InvoiceID { get; set; }
[DisplayName("Inc.In Turnover")]
public bool Turnover { get; set; }
public int FK_StatusID { get; set; }
[DisplayName("Invoice No.")]
public string InvoiceNumber { get; set; }
[DisplayName("Invoice Date")]
public DateTime InvoiceDate { get; set; }
[DisplayName("Document Type")]
public string DocType { get; set; }
[DisplayName("Supplier Invoice No.")]
[Column("SupplierInvoiceNumber")]
public string SuppInvNumber { get; set; }
public int FK_SupplierID { get; set; }
[DisplayName("Account Number")]
public string AccountNumber { get; set; }
[DisplayName("Order Number")]
public string OrderNumber { get; set; }
[DisplayName("Order Date")]
public DateTime? OrderDate { get; set; }
[DisplayName("Currency Code_Doc")]
public string CurrencyCode_Doc { get; set; }
[DisplayName("Net Amount_Doc")]
public decimal? NetAmount_Doc { get; set; }
[DisplayName("VAT Amount_Doc")]
public decimal? VATAmount_Doc { get; set; }
[DisplayName("Gross Amount_Doc")]
[Required]
public decimal? GrossAmount_Doc { get; set; }
[DisplayName("Currency Code_Home")]
public string CurrencyCode_Home { get; set; }
[DisplayName("Net Amount_Home")]
public decimal? NetAmount_Home { get; set; }
[DisplayName("VAT Amount_Home")]
public decimal? VATAmount_Home { get; set; }
[DisplayName("Gross Amount_Home")]
public decimal? GrossAmount_Home { get; set; }
[DisplayName("Payment Reference")]
public string PaymentReference { get; set; }
[DisplayName("Supplier")]
public string AccountName { get; set; }
[DisplayName("Status")]
public string StatusName { get; set; }
[DisplayName("Auditor Comments")]
public string AuditorComments { get; set; }
[DisplayName("Reviewer Comments")]
public string ReviewerComments { get; set; }
[DisplayName("Data Source")]
[Required]
public string DataOrigin { get; set; }
public int DetailLineCount { get; set; }
public IEnumerable<CustomField> ClientData {
get {
//Use the CustomFields foreign key to gain access to the data returns null.
return GetCustomFieldData(this.CustomFields.Select(r => r));
}
}
private IEnumerable<CustomField> GetCustomFieldData(IEnumerable<Entities.CustomFields> enumerable) {
return (from f in enumerable
select new CustomField {
Name = f.FK_CustomHeader,
Value = f.Value
});
}
//Custom Field Additions
public virtual ICollection<CustomFields> CustomFields { get; set; }
}
CustomFields entity:
[Table("tblCustomFields")]
public class CustomFields
{
[Key]
public int ID { get; set; }
public int? FK_SysInvoiceID { get; set; }
[StringLength(255)]
public string FK_CustomHeader { get; set; }
[StringLength(255)]
public string Value { get; set; }
public virtual Invoice Invoices { get; set; }
public virtual CustomFieldHeaders CustomFieldHeaders { get; set; }
}
I also cannot place a breakpoint in the get statement to see what happens, why is this? It just skips over the breakpoint whenever I try to return a list of Invoices, which can be seen here:
public IQueryable<Invoice> Invoices
{
get
{
var x = _ctx.Invoices.ToList();
return _ctx.Invoices;
}
}
You are using the virtual keyword when declaring your CustomFields property. As such it will be lazy loaded. If you want the property to be populated once returned from the repository you will need to explicitly Include the table in your method:
var x = _ctx.Invoices.Include(i => i.CustomFields).ToList();
return _ctx.Invoices;
Or you can remove the virtual keyword and the property will always be populated, with the consequent performance hit of the database join and the extra data being returned whenever you access Invoices.
I want to create my first application using the EF 4.1 Code First Model. I want to model a magazine subscription but just want to check that my POCO classes are fit for purpose.
The following are my classes. Am I missing anything?
Should Customer be a member of Subscription or should it be just that List be a member of Customer?
Thanks.
public class Subscription
{
public int SubscriptionID { get; set; }
public string CardNumber { get; set; }
public DateTime StartDate { get; set; }
public DateTime EndDate { get; set; }
public decimal NetPrice { get; set; }
public decimal Tax { get; set; }
public decimal Discount { get; set; }
public string PromotionalCode { get; set; }
public Customer Customer{ get; set; }
}
public class Customer {
public int CustomerID { get; set; }
public string Title { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public PostalAddress PostalAddress { get; set; }
public string EmailAddress { get; set; }
public string Telephone { get; set; }
public string Mobile { get; set; }
public DateTime DateOfBirth { get; set; }
public string Username { get; set; }
public string Password { get; set; }
public string SecurityQuestion { get; set; }
public string SecurityAnswer { get; set; }
public bool Valid { get; set; }
public IList<Subscription> Subscriptions { get; set; }
public bool MailMarketing { get; set; }
public bool PartnerMailMarketing { get; set; }
}
public class PostalAddress
{
public int ID { get; set; }
public string Address1 { get; set; }
public string Address2 { get; set; }
public string Address3 { get; set; }
public string City { get; set; }
public string Postcode { get; set; }
public string Region { get; set; }
public string Country { get; set; }
}
If a Customer have X suscriptions, every suscription should have the customerID so you need that in your Suscription class (public int CustomerID {get; set;}).
OTOH, I think that you have to put that Customer reference as virtual and the suscription one (I don't know why).
Maybe Im wrong but that works for me.
Anyway, what's your problem?
Your models look correct. You don't necessarily need the Customer property in the Subscription class, but it does help if you want to retrieve a specific Subscription and then want to find the customer that is tied to that subscription. In that instance you can then do var customer = mySub.Customer instead of querying for a customer with the specific subscription id.