ASP.NET

3-Oct-13 0:03

Dear all,

I am currently beginner into this web api applications. I require a little help in how do I go about retrieving previous day's data using entity framework from 'GET' method.

I have constructed the following the code but I cannot get seem to get it work:

The following code is in the WIC controller class.

// GET api/wic/Date
        public database_WICs Getdatabase_WICs(DateTime UploadDate)
        {
            database_WICs database_wics = db.database_WICs.Find(UploadDate);

            string yesterday = DateTime.Today.AddDays(-1).ToShortDateString();

            if (database_wics == null)
            {
                throw new HttpResponseException(Request.CreateResponse(HttpStatusCode.NotFound));
            }

            return database_wics;
        }

Any help would be very much appreciated.

Thank you

Kornfeld Eliyahu Peter3-Oct-13 3:03

3-Oct-13 3:03

Quote:

string yesterday = DateTime.Today.AddDays(-1).ToShortDateString();

What this line for?

You mean to do this before and pass yesterday to the db?

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is (V).

miss7863-Oct-13 3:48

3-Oct-13 3:48

Thank you for your reply.

I changed the above line to the following below:

string yesterday = db.database_BWICs.Find(d => d.UploadDate == yesterday);

Whenever I add

db.database_WICs.Find(d => d.UploadDate == yesterday

I get the following error in the code:

"Cannot convert lambda expression to type 'object[]' because it is not a delegate type."

I can not seem to figure out why.

Any help would be very much appreciated.

Thank you

Kornfeld Eliyahu Peter3-Oct-13 9:45

3-Oct-13 9:45

To check it I need the signature of db.database_WICs.Find method...

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is (V).

miss7868-Oct-13 1:20

8-Oct-13 1:20

Hello, thank you for your response.

I apologies for the late response, by signature you mean the entire api control class or the database model code.

Thanks

Kornfeld Eliyahu Peter8-Oct-13 1:32

8-Oct-13 1:32

By signature I mean the types of its parameters and return value.
See here http://en.wikipedia.org/wiki/Type_signature[^]

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is (V).

miss7868-Oct-13 2:26

8-Oct-13 2:26

Thank you so much for your response. Here is the data model with all its parameters:

namespace Wic_T1
{
    using System;
    using System.Collections.Generic;
    using System.Runtime.Serialization;

     [DataContract]
    public partial class database_WICs
    {
        [DataMember]
        public int ID { get; set; }
        [DataMember]
        public string Name { get; set; }
        public Nullable<System.DateTime> SaleDateTime { get; set; }
        public string Region { get; set; }
        [DataMember]
        public string CUSIP { get; set; }
        [DataMember]
        public string Size__m_ { get; set; }
        public string OriginalRating { get; set; }
        public Nullable<System.DateTime> MaturityDate { get; set; }
        public string Manager { get; set; }
        [DataMember]
        public string priceTalk { get; set; }
        [DataMember]
        public string Cover { get; set; }
        public Nullable<System.DateTime> LastUpdated { get; set; }
        [DataMember]
        public Nullable<System.DateTime> UploadDate { get; set; }
        [DataMember]
        public string Type { get; set; }
        [DataMember]
        public string ISINs { get; set; }
        [DataMember]
        public Nullable<float> Decimal_price { get; set; }
        public string CMBS_spread { get; set; }
        public Nullable<float> CMBS_decimal { get; set; }
        [DataMember]
        public string Current_size { get; set; }
    }
}

I really appreciate your time and help.

Kornfeld Eliyahu Peter8-Oct-13 19:55

8-Oct-13 19:55

It seems that, that was not enough.
Do we talk about a big project? Or can you zip it all and send me to peter@rashim.co.il?

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is (V).

miss78610-Oct-13 5:18

10-Oct-13 5:18

Apology for the late response.

I partially go the code to work. as it now display's yesterday's data feed.
However, I have weekday dates data stored on server and when I call data from now.date Monday, I get a null list on the client-side.

Is their any example, where I can use to get yesterday's date data excluding weekend dates?

<pre lang="c#">public IEnumerable<database_BWICs> GetDate()
        {
            DateTime yesterday = DateTime.Today.AddDays(-1);

            var data = from c in db.database_BWICs
                       where c.UploadDate == yesterday
                       select c;
            return data.ToList();
        }

Thank you so much for your support and generous gesture.
I really appreciate your time and help.

Kornfeld Eliyahu Peter10-Oct-13 5:32

Someone - Please sell me on MVC

10-Oct-13 5:32

See this...
There was a extension project on CodePlex that can not be found [^]

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is (V).

L Viljoen2-Oct-13 23:57

L Viljoen

2-Oct-13 23:57

On to an issue whether or not we should move to MVC development I have been debating this with my developers now for months.

And some insist MVC is better though I just dont see it.

What makes a programming methodology better for me ?
Speed of development.
Developer spending less time on interface and normal features and more time getting validation and business logic to be solid
Code that is easy to understand by new developers taking on the project
Structure that is easy to follow and you dont have to jump between mappings and target pages to check how they link
Ability to create reusable controls
Visual designer , so you dont have to repeatedly code something as mundane as a table.
Scalability

When working with MVC4
Razor
Visual designer Gone ;(
No Server Controls
Hooking up an event is manually coded (instead of double clicking or hooking up an event
Single controller multiple pages

Bottom line is what is quicker , on asp.net I can drag a button on the exact spot i need it double click (3 seconds later) I have a button named and hooked up to an event without touching the keyboard. which the mvc guy is still busy typing his input tag , not to mention switching between the controller and the markup screens creating a event and a model.

When i used a aspx grid , I get a nice linq data source hook it up to a grid, columns gets auto generated , meaning all i have to do is change the column headers , click that I want to enable sorting and paging , and I am done 2 minutes later. and if I have not too complex columns the add edit and delete features are created for me in one shot which can be configured for more complex scenarios's

Now as an mvc developer doing the whole grid thing , everything has to be coded , I have to code my data queries (be it LINQ or SQL) to do the paging and sorting , 2 hours an insane amount of typing and script later I have something that kinda does the same thing but looks butt ugly. I guess an expereinced MVC dev can do it in probably 10 mintes flat

My Recommendation, MVC is ok for cases with little complexity and smaller size projects, but when you need to deliver something of great scale and complexity you are shooting yourself in the foot as you will still be coding interface logic when a asp.net dev is long done with the project.

Also just in case you wondering I know
1 MVC does not have viewstate : good practiice minimises viewstate/ you can also hide your viewstate in session using very basic code, also viewstate has never kept me awake one night , projects running late has
2. MVC generates easy to read markup : not really relevant since your customers only really look at the interface not the code
("but but but. . . search engines" - trust me google can handle it.
3. Ability to create clean user friendly urls - The url rewrite method has been available since .net 2, and is infinitely flexible to anyone who knows their regular expressions

The goal of industry here is.
1.to have it done quickly
2.have it done at low cost
3.and to have to have it done right
(you can have only 2 of the 3)

now needless to say 3 quality is non negotiable and 2 is usually what sells software to a client .
but 1 does not help you if developers pulling a salary takes 3 months to develop software that brings in 1 month of profit

So please explain why MVC is better ?

Chona1171
Web Developer (C#), Silverlight

Kornfeld Eliyahu Peter8-Oct-13 1:52

8-Oct-13 1:52

It isn't.
The Microsoft implementation of MVC is far (even version 4) from being satisfactory to me too.
I'm working on a large enterprise app and before each major version we check what new tools/environments we should use/incorporate.
MVC (not the architecture) failed with large noise...
I worked with COBOL with the idea of separated layers, but never imagined that 20 years later it will means no code-reuse...

I found MVC good only for very small size apps...

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is (V).

L Viljoen9-Oct-13 1:17

L Viljoen

9-Oct-13 1:17

Look there are things i like about it , but give it about 2-3 more releases before they have something a bit more commercially viable

Chona1171
Web Developer (C#), Silverlight

Kornfeld Eliyahu Peter9-Oct-13 1:29

9-Oct-13 1:29

2-3 more? after MVC5 of before?
It makes if 7-8 releases!!!

I'm not questioning your powers of observation; I'm merely remarking upon the paradox of asking a masked man who he is (V).

João Márcio Prado17-Oct-13 10:52

João Márcio Prado

17-Oct-13 10:52

Never read so much nonsense about MVC framework as I read here.

Do you know Stack Overflow? It was written using MVC.

Visual Designer? Well, I don't get where it fits on webdesigner/webdevelopment.

If you don't know nothing about HTTP and the flow of request/response go with webforms and suffer, suffer a hell in mantainance.

You don't like patterns and practices? Go with webforms.

MVC is a robust and well known architectural way to build webapps. It shares it concept from the Ruby On Rails.

MVC allows low cost mantainance even if the start of the project costs a (little) bit more.

Webforms are good for RAD, and IMHO just for that.

If you want to build flexible, robust, low mantainance cost webapps despite the complexity of then you will for sure choose MVC.

Kornfeld Eliyahu Peter17-Oct-13 19:46