How could I map my Linq-to-Sql generated entities (DTO’s) to my domain entities? The problem is that I can’t map the associations because they are not of the same type. The DTO’s uses EntitySet and EntityRef and my domain entities uses IList and T.
I’ve looked at some blog post: Ian Cooper's architecting-linq-to-sql-applications-part-5 and digital_ruminations linq-to-sql-poco-support but they don’t fit my needs. I like some kind of generic converter class to handle the mapping.
Now I do something like this:
public IList<Entities.Customer> GetAll()
{
try
{
return _custConverter.Convert(base.GetEntities());
}
But the Convert method only converts the basic properties not the associations.
Any ideas how I can do this the best way?
You might want to look into AutoMapper. It does a great job of mapping properties automatically out of the box and supports extensive customization, such as custom converters, which I think could be used to make Lists out of your EntitySets.
Update:
The official project site and compiled releases are found in CodePlex (same link as above).
Code is SVN hosted at Google Code
Discussiong group is hosted at Google Groups
Accouncement and overview of features at Jimmy Bogart's blog post
Related
Can anyone share own experience and best practices implementing multilingual sites with Yii2? I want translate user input that is stored in database. For example article, that may have its name in three different languages, body and some translatable attributes as well.
Does Yii2 have built in features to translate the dynamic content? Or should I use third party extensions like these ones below:
https://github.com/creocoder/yii2-translateable
https://github.com/LAV45/yii2-translated-behavior
https://github.com/lajax/yii2-translate-manager
Your help would be appreciated.
Well, I can give you my point of view only based on what I have done.
There are to places to work translation
The non dynamic strings managed with i18n and messages system from
yii, that will help you with static content.
Working the translated routes dynamically with a bootstrapped class, that allows you to build this routs when the app is built.
And working with tables that have columns that support the translation like 'title_en, title_es', and as many as you need to translate. Actually in your admin interface you may want to use something like yandex to help you translating the content to this fields.
Now I will explain:
The i18n Message Translation is based on translating strings in your views, models, and in some cases like on the bootstrapped class.
You will en using Yii::t('app/main', 'Your name is {0}' as an example to translate strings that are stored on message php files.
Now if you translate stings you will want to translate the routes so you will en with routes like /articles and /articulos when you change the language.
for this purpose you will like to build a class that implements BootstrapInterface and that will be called from the process of bootstrapping your app.
So this is an example of my settings.php that I use for this
namespace app\base;
use Yii;
use yii\base\BootstrapInterface;
class settings implements BootstrapInterface {
public function __construct() { }
public function bootstrap($app) {
/// Dynamic translated routes
$t_articles = Yii::t('app/route', 'articles');
$app->getUrlManager()->addRules([
'/'.$t_articles => '/articles',
], false);
}
}
And remember to bootstrap the class in your config file «i.e. web.php»
'bootstrap' => [
'log',
'app\base\settings',
],
And finally to translate text from the database you may want to make a table that supports the translated text like:
CREATE TABLE articles (
id INT,
title_en VARCHAR(20),
title_es VARCHAR(20)
);
So when you call your app you can pull your data using something like the following on the action (only a simple example):
$articles = ArticlesA::find()->where(['id' => 1])->one();
$lang = $this->module->language;
return $thi
s->render('index',['articles'=>$articles, 'lang'=>$lang]);
or in the view as:
<p class="lead"><?=$articles['title_'.$lang]?></p>
I hope this explains the way I have been translating my apps.
Use a Google translator API or Yandex API to for smooth translations for multiple languages.
Few links that i have found on git
https://github.com/borodulin/yii2-i18n-google
Tutorial
RichWeber/yii2-google-translate-api
Google Api is a paid service however you can get free credit for 12 months if your a first time user
I have created a new solution for my MvvmCross app that supported Windows Store and I want to support UWP on Windows 10. I have moved over the PCL successfully, but I am having problems getting the basic UWP app working using a sample provided by MS (NavigationMenu) which uses the SplitView and the AppShell pattern they are recommending for the new navigation/command model. I referenced a helpful blog post (http://stephanvs.com/implementing-a-multi-region-presenter-for-windows-10-uwp-and-mvvmcross/), which gave me some guidance on how to integrate mvvmcross into the AppShell, but startup is failing because the AppShell does not have a valid Frame defined. Frame is a read-only property, and I have been unable to see where this is being set up.
I am using the standard AppShell implementation from the NavigationMenu with the following changes as recommended in the blog post:
public sealed partial class AppShell : MvxWindowsPage // was Page
public Frame AppFrame { get { return this.Frame; } } // was this.frame
Except for code after the error, there are no differences in the setup. In looking at the MvxWindowsPage implementation, there doesn't seem to be anything special as it still invokes the Page initialization. Is there something obvious I am missing?
So the link to the blogpost is correct, in other words you'll need to use MultiRegions from MvvmCross to get this working.
But what the blogpost doesn't show is a complete working version...
I've added one on my github here:
https://github.com/Depechie/MvvmCrossUWPSplitView
Some pointers to take away, like I said in the comments.
Your view where the SplitView will be present, needs to have a property to return a valid Frame to look for while injecting new views. This can be returned like this return (Frame)this.WrappedFrame.UnderlyingControl; found in the code here https://github.com/Depechie/MvvmCrossUWPSplitView/blob/master/MvvmCrossUWP.Win/Views/FirstView.xaml.cs#L13
Than all views you want to load up in the SplitView will need to reference to the region you defined in that SplitView, in my case I named it FrameContent as seen here https://github.com/Depechie/MvvmCrossUWPSplitView/blob/master/MvvmCrossUWP.Win/Views/FirstView.xaml#L48
So use that name for the region attribute in all to be loaded views like so [MvxRegion("FrameContent")] example here https://github.com/Depechie/MvvmCrossUWPSplitView/blob/master/MvvmCrossUWP.Win/Views/SecondView.xaml.cs#L7
I see what you're trying to do with the SplitView template that's provided by Microsoft. There is however a mismatch between things managed by MvvmCross and UWP.
By default MvvmCross maps ViewModels to Views based on naming conventions. What you are trying to do is use a view 'AppShell' (which is derived of Windows.UI.Xaml.Controls.Page) that doesn't adhere to the default MvvmCross convention.
The way I choose to implement this SplitView (Hamburger) functionality is by deleting the provided AppShell class entirely. I then created a new view named HomeView (since I have a ViewModel with the name HomeViewModel) and added the SplitView control there as described in the post you mentioned above.
For completeness I've created a Gist with the App.xaml.cs and HomeView.xaml as you requested. You can find them here: https://gist.github.com/Stephanvs/7bb2cdc9dbf15cb7a90f
Love this framework thus far.
That said, hit my first roadblock. I have created an MvvmCross-based library (actually a few libraries) that performs login services that will be used across multiple cross-platform applications of the same family. What I can't quite figure out is how to plug these login libraries into my other applications (which will also be using MvvmCross). I want to be able to re-use the same ViewModels and Views across these apps.
Assume that I've read and watched a lot of slodge's videos. :) Which are very good.
I think MvvmCross with two core libraries was about the closest thing to what I'm trying to do, which is just smash MvvmCross projects together and make it all magically work. But going by that post, which had some inconsistencies in the code samples, I've been unable to get this working.
There are 2 methods in Setup which tell mvvmcross where to look for Views and ViewModels. If you override these then the system should find your views and view models.
protected virtual Assembly[] GetViewAssemblies()
{
var assembly = GetType().Assembly;
return new[] {assembly};
}
protected virtual Assembly[] GetViewModelAssemblies()
{
var app = Mvx.Resolve<IMvxApplication>();
var assembly = app.GetType().Assembly;
return new[] {assembly};
}
Beyond this, the only additions to this that I'm aware of are that you might need:
to give wp some extra help in finding the xaml urls for any views which are in additional assemblies - by default mvx only looks for the xaml uri in /views, not in any other folder in any other assembly. One way to provide the xaml urls is to add a MvxPhoneViewAttribute within the View's c# file, another is to override the MvxPhoneViewsContainer to make it provide custom urls.
to adjust some of the android project settings in order to get resources shared from libraries to main project (although this functionality has gotten much better within xamarin.android this year.
I have created the following classes for sharing images. They implement an interface, but I need a way of switching between them with user interaction. I've done it the following way:
As you can see, service 1 and service 2 implement iSharingServices, and inherit from PolimorphSharing.
PolimorphSharing is simply and an abstract class that implements the methods I want public from Service 1 and Service 2. Those methods will then be overridden on the Service 1 and Service 2.
Because I need a way to switch the service in runtime, I've created a gateway class that inherits from PolimorphSharing. I can then call it the following way:
private var sharingService:PolimorphSharing = new SharingServicesGW('svc1').createService();
This all works flawlessly, and I can now switch between services with no problem whatsoever. However, I feel there's something wrong about it, so I would like to ask you guys for some advice on how to better implement this.
Any opinions here would be appreciated. I feel like I'm kind of implementing the factory pattern here the hard way.
UPDATE:
Just adding some more insight to this. Basically the idea here is for my client to be able to upload images with various different public sharing services such as imageshack, imgur etc. I want my client to be able to select the service in which the image is to be published to (hence the "switching between them with user interaction" bit of the question.
The method that does the uploading bit, is requestShareImage(), processResults() simply turns whatever gets returned to a unique format, so my client can read off it always the same way. getObject() is my accessor, and onIOError will handle exceptions with any of the public API's
Thanks all in advance,
SharingServicesGW IS a factory. However, there's no need for it to - and it shouldn't - inherit from PolimorphSharing. Also you're doing it a bit skewed. The client should be using objects of the interface type, not the abstract type.
Your interface should be defining the public API, not your abstract base class. In fact in AS3 interfaces can only define public members, while pseudo abstract classes can enforce implementation of protected members.
-- EDIT --
here's a UML diagram of how I would do it
I started out looking at the JAX-RS plugin for grails and thought that was the way to go mainly because it was based on JSR-311 and I figure following standards is usually the smart thing to do. However, using Grail's UrlMappings it seems I basically achieve the same thing. I figure I'm missing something, however, we aren't doing anything overly complex. We basically just need to expose CRUD via an API. Example of doing the same thing with both versions:
JAX-RS:
#PUT
#Consumes(['application/json'])
#Produces(['application/json'])
Response putUser(User user) {
user.save(flush:true)
ok user
}
Grails:
def update = {
def user = new User(params['user'])
user.save(flush:true)
render user as JSON
}
Obviously, this is an overly-simplified example and like I said, maybe I'm missing something important. Also, the nice thing about the Grails built in mechanism is I can utilize Content Negotiation along with it.
Anyone have any opinions on this?
I had to make the same decision, and I found it just easier to use URL Mappings because the API was not that complex and there were a limited number of API calls that needed to supported.
If came down to what would be easier to maintain based on the LOE and the resources able to support the implementation.
The jax-rs plugin is very useful if you are creating web services straight to your domain models. It gives you a "generate-resource" command that automatically creates CRUD apis for your model.
grails generate-resource mydomain.Model
This part seems to work fine, however, I encountered quite a few bugs/problems with the plugin that I finally had to implement the REST services using URL-mappings.
Although the URL-mapping method seems to be more coding, it works perfectly.
import grails.converters.JSON
class ModelServiceController {
def id = params.id
def myModel = MyModel.findById(id)
render myModel as JSON
}
Here's the link for grails REST
http://grails.org/doc/1.0.x/guide/13.%20Web%20Services.html