What is a right way to add an abstract object and its sub-classes in a JHipster project? It isn't need to have a repository and service classes for an abstract class. The command line doesn't seem to deal with inheritance relationship.
Related
I have created a new jhipster project v4.13.3.
When creating a entity e.g.:
jhipster entity Employee
And selecting Dynamic filtering for the entities with JPA Static metamodel
An EmployeeQueryService class is subsequently created.
When looking in this class at the createSpecfication method, there are entries like this:
(buildStringSpecification(criteria.getFirstName(), Employee_.firstName));
Employee_ as far as I can tell is not defined anywhere and Intellij reports "cannot resolve symbol".
Running mvn, no errors are reported and the app runs fine.
Am I missing something?
Thanks
As documented, JPA static metamodel is generated by an annotation processor at build time. Maven knows about it, your IDE doesn't.
I've been using this blog example:
http://blog.longle.net/2012/03/29/building-a-composite-mvc3-application-with-pluggable-areas/
I have the concepts working in my solution. However, I'm trying to figure out a good way only add bindings to the kernel if a user has permissions to access a module/area.
I've read up some on the ServiceLocator but I was trying to stay away from it.
One thing I'm trying just to get things to work is user Contructor injection in the default constructor for a module. It's working but is a hack.
The pattern I'm using, each module project you create an class that inherits from AreaRegistion. When each module project builds, relevant files are copied to the Areas folder of the main web project. Then when the main project loads, reflection is used to load all module assemblies. Then when AreaRegistration.RegisterAllAreas() is called, it detects and loads all the modules with a class that inherits AreaRegistration.
I'd like to figure out an good way to access the Ninject kernel and add bindings in the module class that inherits from AreaRegistration. I would imagine initiating code to add bindings from the RegisterArea() override.
I'm looking for any suggestions on how to do this without resorting to the ServiceLocator.
Any ideas would be greatly appreciated.
For now I've found a better solution and that's to use NinjectModule. In the Plugin class, I'm going to create a class which inherits from NinjectModule. Then setup the pluging bindings in the Load overload.
Then use Kernel.Load in my main app bootstrapper to initialize the Load overloads in all plugin classes which inherit from NinjectModule.
Is it possible using EF6 Code First and MVC5 to put all the models, views, and controllers that involve ASP.Identity into its own class library project. So that over multiple web applications you could use that same DLL and already have all the views / controllers / models and be using the same security database for multiple applications?
We have several web applications with separate databases and one security database that handles all of them, and we weren't sure how to keep this model now that we're moving to EF6 Code First and MVC5.
If it is possible could someone point me to a tutorial of something similar or give me a basic outline of steps to go through?
Or if there is a better way to achieve my goal, of having one set of code to handle ASP.NET-Identity security that I can plug that dll into multiple web applications and get the same logic and databases?
Or is this not a good idea in general?
Very open to suggestion and advice. I appreciate it.
Yes it is. We do this with every project that we have. The structure is very simple. Just create a class library project to your solution, add EF to the project, then reference the class library from your main project.
If using Code First Migrations be sure to select the class library project as the default project in the Package Manager console when running migrations or adding migrations.
Here is a pseudo solution structure for your solution
MySolution
- MyWebApp
reference: MyDAL
-MyDAL
reference: EF6
The advantage that I find to this is that you can then reference the "DAL" class library from say a companion console application or windows form application, or a companion website, even in a different solution, and they will use the same code base.
For example:
MySolution
- MyWebApp
reference: MyDAL
- MyDAL
reference: EF6
- MyOtherWebApp
reference: MyDAL
NOTE: Your data context will look for its connection string in the Web.config or App.config in the startup project. NOT the class library. This can be confusing at first... But once you think about how .NET compiles the application together into the final package, it makes sense.
If you're talking about creating one class library for an entire data layer shared between multiple projects, then that's easy enough. You can move all your models, your context, etc. into a class library and run migrations using the class library project. The other projects will just reference that class library and not have migrations of their own.
However, if you're talking about multiple databases and associated data layers, where project Foo has its own models, context and migrations and project Bar has its own models, context and migrations, while the class library has just the IdentityUser and IdentityDbContext, things get a little more complicated. You won't be able to combine any of these contexts. So in your Foo project you'd have to instantiate your context for Foo and your Identity context if you need to work with both. It's not a problem, per se, but it's something to be aware of.
It is possible to create automapper like modules (such thoses of ninject) so i can define my mappings from an external library here and include them in a bootstrap class ?
That is exactly what Bootstrapper does. All you have to do is implement IMapCreator and Bootstrapper will find and execute your mapping code at startup time.
in C# assembly under my control is a class. I control creating all its instances. How can I override its constructor, all methods and properties at runtime? How can I create an instance of this overriden class?
Look for dependency Injection framework: Unity, Ninject, Castle Windsor framework.
I used reflection to create a code and compiled it by CSharpCodeProvider.