Commons.Persistence

Description

To be able to query or change data persistently in a database, for example.

Class diagramm

Example

We want to use commons.persistance to get the number and a list of all movies contained in a given database.

Steps:

• Register dao with e.g. Microsoft.Extensions.DependencyInjection or simply create an instance like:

IGenericDao<Movie, int> _movieDao = new MovieDao<Movie, int>();

• Create a new class to be able to implement the dao

public class MovieDao : GenericDao<Movie, int>
{
    public MovieDao(MovieContext dbContext) : base(dbContext)
    {
    }
}

• Now you can use the dao to get all the data

IEnumerable allMovies = movieDao.GetAll();

• Determine the number of films with the help of the Daos

public long AnzahlDerFilme()
{
    return allMovies.GetCount(); //returns amount of entities
}

How to use it

• include Nuget-Package (queo.commons.persistance)

<PackageReference Include="Queo.Commons.Persistence" Version="3.0.0" />

• Register the Dao
• Create a new class to be able to implement the dao
• Instantiate new Dao
• Now you can use the Dao
• If you want to use the TransactionHandling, you have to add the following inside your program.cs or startup.cs.

UseTransactionHandling <TDbContext>(this IServiceCollection services);