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  • Could you give me an example of how to attach an object in Deleted state – I keep getting an exception [migrated]

    - by carewithl
    From MSDN : An object in the Deleted state can only be attached when the ObjectStateManager is already tracking the relationship instance. Could you give me an example of how to attach an object in the Deleted state. I tried the following and got "System.InvalidOperationException: The object being attached is in an added or deleted state. Relationships cannot be created for objects in this state". var contact = context.Contacts.First(); Console.WriteLine(contact.Addresses.Count()); // 2 var address = contact.Addresses.First(); context.Addresses.DeleteObject(address); contact.Addresses.Attach(address); // InvalidOperationException thank you

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  • What Technology to use to Interact with Codeigniter "Backend" [on hold]

    - by symlynk
    I am building an application that looks like this: Codeingiter App/MySQL DB <--> API (this is the "contract" between the two entities) <--> Web Frontend I want the web frontend to be able to interact with the MySQL DB by requesting JSON objects in a RESTful way. But I don't want the Web Frontend to expose the workings of the Codeigniter App (i.e. let the Web Frontend clients see the domain of the codeigniter app, including its controllers/functions). The Codeigniter App is for business clients, and needs to be "hidden" from the Web Frontend users. I want to use PHP or Javascript, and am considering node js's Express, Angular, and SLIM PHP. Any thoughts as to what technology would suit this purpose best? Thanks

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  • Should Business Interfaces be part of the Model layer?

    - by Mik378
    In an oriented-services enterprise application, isn't it an antipattern to mix Service APIs (containing interface that external users depends on) with Model objects (entities, custom exceptions objects etc...) ? According to me, Services should only depends on Model layer but never mixed with it. In fact, my colleague told me that it doesn't make sense to separate it since client need both. (model and service interfaces) But I notice that everytime a client asks for some changes, like adding a new method in some interface (means a new service), Model layer has to be also delivered... Thus, client who has not interested by this "addition" is constrained to be concerned by this update of Model... and in a large enterprise application, this kind of delivery is known to be very risked... What is the best practice ? Separate services(only interfaces so) and model objects or mix it ?

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  • Resource Managers - Are they any good?

    - by The Communist Duck
    Hey. I've seen many a time in source code, things like this [well, this is more of a pseudo C++ idea of mine] type defshared_ptr ResourcePtr;// for ease ResourcePtr sound1 = resourceManager.Get("boom.ogg"); sound1-Play(); ResourcePtr sprite = resourceManager.Get("sprite.png"); I was just wondering how useful a class like this was, something that: Loaded media files Stored them in memory Did this at the start of a level - loading screen. Cleaned up Rather than having a system of: Resources are held by entities only, or loose. Responsible for own load into memory. The first is a 'manager' as such; something I feel indicates it's wrong to use. However, it allows for something like a vector of resource names to be passed, rather than having to scramble around finding everything that needs to be loaded.

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  • Consuming OData based Rest service in C# [en-US]

    - by ruimachado
    Nowadays comunication between applications is an active topic with daily usage and a large amount of pratical appliances. While developing an app in witch I had to consume an OData I found out that combining Linq with my code made this operation pretty easy.The algorithm to consume OData starts with adding a service reference to Visual Studio:After adding the service reference in wich you define the uri to the service, we start building our code.In your code the algorithm is the following:Define the Uri to your OData ServiceDefine the context of your odata, wich contains all entities exposed by the service.Query the context using LinqPrint the resultEasy and simple.Example code:01public static void Main(string[] args){02 03        Uri serviceUri= newUri("http://example.host.odataservice.net/service.svc", UriKind.Absolute);04        ODataService.ServiceEntities context = newODataService.ServiceEntities (serviceUri);05 06        context.Credentials = newSystem.Net.NetworkCredential(Username,Password);07 08         var query = from ServiceObject in context.YourEntity09                     select ServiceObject ;10 11        foreach (var myObject in query)12        {13            Console.WriteLine("\n Field1: {0} | Field2: {1}",14            myObject .Field1, myObject .Field2);15 16        }17}That’s it.Thank you,Rui Machadorpmachado.wordpress.com

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  • Web Form Testing [closed]

    - by Frank G.
    I created a application for a client that is along the lines of a ticket tracking system. I wanted to know if anyone know of software that could beta test the web forms. Well I am looking for something that could automatically populate/fill whatever forms are on the web page with generic data. The purpose of this is to just randomly populate data and see if I get any errors on the page when submitted plus to also see how validation for the form functions. Does anyone know of anything that could do this?

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  • How can I derive force vectors from velocity vectors?

    - by PixelRouter
    I'm making a 2d shooter ala Geometry Wars. I've got my own simple physics at work driving the background grid and all my entities. To move anything in the world I apply a Vector2d force to it. The 'engine' calculates the resulting acceleration and therefore the velocity. I am trying to port some code I found which implements the classic 'Boids' flocking algorithm, but the code I have works by calculating the Boids' velocities directly, so If i use it as is, it bypasses my physics engine. How I can translate the velocity vectors into force vectors that I can apply to the Boids and which will result in the proper velocities via my physics engine.

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  • Search Engine Optimization - All You Need to Know About SEO and Why You Need It?

    'Search Engine Optimization' (SEO), in itself is a self explanatory statement, it is more than just keywords. The word 'optimize' means to make the best or most effective use of the available resource or a situation. SEO is the process which helps in the improvement of the traffic caused to the web site from various search engines. The basic concept of SEO is to choose targeted keyword phrases related to a site, and ensuring that the site places well, when those keyword phrases are part of a Web search.

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  • Where did "Open with" (user defined command) go?

    - by MiStr
    I'm now using Ubuntu 12.04. In earlier versions you could associate a filetype with a specific command (e.g. self-compiled binary) by selecting "Open with" in the file's properties and select the command by providing the file path manually if it wasn't already in the list of applications. Is this possibility gone? The only way I found now is to create .desktop files and edit the mimetypes via an text editor.

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  • What Internet Marketers Need to Avoid in Search Engine Optimization

    Many internet marketers are self-starters and test market products on a shoestring. Doing so means taking search engine optimization or SEO into one's own hands. Knowing the basics of search engine optimization are critical to achieving a high ranking in search engines for specific keywords. However, there are a number of common pitfalls to avoid.

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  • Introduction to SMART

    <b>Linux Magazine:</b> "Did you know your drive was SMART? Actually: Self-Monitoring, Analysis, and Reporting Technology. It can be used to gather information about your hard drives and offers some additional information about the status of your storage devices. It can also be used with other tools to help predict drive failure. "

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  • How to get a good picture of the health of a level-based game from analytics?

    - by ADB
    I am designing a level-based game where the user completes the level 1, then 2, 3 and so on. There are 200 levels and each is rather short: 60-ish seconds. I am tracking Each played, completed (cleared for the first time), failed and cleared level Milestones: number of players to reach level 1, 5, 10, etc. Also for number of failed and played levels. Separate new players from returning ones. However, I still find it difficult to get a clear picture of what is going on from the stats. So what are the best practices for determining where I am losing players?

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  • Is it a good practice by commenting with owner name? [closed]

    - by fifth
    Possible Duplicate: How do you keep track of the authors of code? Here's several scenarios which may comment with owner name: bug fixing, i.e. // fixed bug 123 by xxx, solution is ... ... fixme/todo tags, i.e. // TODO: .... by xxx. hacks, i.e. // HACK! ... by xxx For case #2, please refer to Comment Tags The obvious advantage is that we can ease tracking by names. The downside is the risk of abuse. Actually my previous company allowed this way of commenting style, but current employer completely disallows names appearing in code. In my opinion, I would vote for discreetly commenting with author names. I'm open to hear from you if this commenting style is good or bad. Thanks.

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  • Implementing hitbox polygon

    - by Delusional Logic
    I'm creating a shooter, it's still very early, but i'm implementing some polygon hitboxes. So far i have created a polygon class, and i'm looking into how i can hook it onto my player. I'm trying to stay away from having a Tick() function in my polygon class, and I would rather not update the position every tick (it would clutter up my tick functions). At the same time I would really like to have the positions in there somehow (it has a drawing function, and i will be using it for hit detection) How would i go about implementing this polygon object into my entities?

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  • Do You Use Oracle Exchange? Read This Important Information!

    - by LindaJ-Oracle
    Any change required on the Oracle Exchange instance (e.g.: SSL certificates, patches, datafix, etc.)  is required to be executed first in the Test Exchange.  This can also be applicable to issues where clients are using Oracle iProcurement and Oracle Fusion Self Service Procurement for Punchout to and via Oracle Exchange. See the details today in Doc ID 1681121.1 -  Oracle Exchange Requirements

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  • Creating ASP.NET Admin Pages

    In the tutorial series for ASP.NET 3.5 Master Page Design using Query String I explained in detail how to create an ASP.NET website using master pages and query string techniques. This tutorial series will show you how to create admin pages for your ASP.NET MasterPage Query String driven website.... Self-Service Ad Manager Sell Ads directly to advertisers - Keep 100% of your ad revenue - Free access

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  • Where is "open with..." in Nautilus?

    - by perebal
    In Ubuntu 11.04 I usually edit my *.fig files by clicking on the icons. The application (script) which opened the file was texfig. This script was chosen by "open with..." in nautilus. But now there is no possibilities to choose other applications than the predefined ones appropriate to the mimetype. How can I define a default application (or a self made script) in nautilus for the x-xfig mimetype?

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  • The Myths of Website SEO Page Design

    Many so called self confessed experts will tell you that you need to use certain entries in your Title, Description, alts, keywords and other places. Make sure that you have enough H1 and H2 tags and use bold a few times.

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  • Let's Play With SEO

    These days, search engine optimization has made its worth renowned due to its dynamic and self motivated nature all over the world. That is why you will need to play with SEO as a thoroughly professional web marketing technique.

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  • MailEnable - Configuring TLS for secure SMTP (Gmail)

    - by Buckers
    I have the latest version of MailEnable Pro installed on a new server that I'm setting up. Sending & receiving works fine with a new email account that I have set up, however I am now trying to configure GMail to use the mailserver for outgoing SMTP. I've done the following so far: Creating a self-cert SSL certficiate Ticked "Enable TLS" on the General tab of the SMTP connector properties Ticked "Send using TLS if remote server supports it" on the Outbound tab of the SMTP connector properties Selected the new self-cert SSL certificate on the SSL tab of the localhost server properties. Given permissions to IME_System on the new certificate However, Gmail is still giving me the following error: Authentication failed. Please check your username/password. [Server response: 454 TLS not available due to temporary reason code(454) ] I'm trying to connect on port 25, (someone told me you can still do this and you dont have to connect on 465). Is this right? Or do I need to tell MailEnable to use port 465? Am I missing something? Thanks, Chris.

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  • Plesk SSL Certificate (Default cert when SSL enabled, CORRECT cert when SSL is disabled)

    - by hztetra
    I'm running Plesk 8.6.0: I have an SSL cert installed through Plesk's admin interface. But I have a bit of an issue: When I enabled SSL for the site, and selected my cert, then restart httpd, Plesk defaults to using my self-signed default certificate. Conversely, when I disable SSL support for the domain, all of a sudden Plesk is using my new SSL certificate. Unfortunately, when I try to view any folder on the site (mydomain.tld/folder) I'm simply met with a 404 (with files placed both in httpdocs and httpsdocs). I switch SSL support back on, and Plesk defaults back to the default self-signed cert and I can then view the folders that were not previously accessible. Any ideas? One further note: I tried following http://kb.parallels.com/en/939 . Once I tried to restart httpd with the edited ssl.conf file, I received an httpd could not start error. I restored the original ssl.conf file, and still received the could not start error. So as of now, I am running without an ssl.conf file. The following is the error I receive when I attempt to reintroduce ssl.conf: Starting httpd: [Mon Aug 23 15:45:40 2010] [warn] module ssl_module is already loaded, skipping (98)Address already in use: make_sock: could not bind to address 0.0.0.0:443 no listening sockets available, shutting down Unable to open logs

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