CypherOGM.MemgraphDriver 1.1.4

*It's an extension of actual Blueprint41 library. Added features are listed below:

• Add Composite Unique Constraints for Node and Relationships
• Exposing Explicit Transaction Commit*

<div> <div><img align="left" src="https://github.com/circles-arrows/blueprint41/assets/121929116/88c219d4-403b-4e98-81a6-f1f3055a0a33" alt="Blueprint41" width="180" height="180"></div> <div align="right"> <div align="left"> </div> <div align="left"><b> ✔️ Supports for Neo4j and Memgraph</b></div>
<div align="left"><b> ✔️ Works Visual Studio, Visual Studio Code and Rider</b></div>
<div align="left"><b> ✔️ Develop on Windows, macOS or Linux</b></div>
<div align="left"> </div> <div align="left"><h1>Blueprint41</h1></div> <div align="right"> <a href="https://www.nuget.org/packages/Blueprint4"><img alt="NuGet" src="https://img.shields.io/nuget/v/Blueprint41.svg"></a> <a href="https://www.nuget.org/packages/Blueprint4"><img alt="downloads" src="https://img.shields.io/nuget/dt/Blueprint41"></a> <img alt="repo size" src="https://img.shields.io/github/repo-size/circles-arrows/blueprint41"> <img alt="license" src="https://img.shields.io/github/license/circles-arrows/Blueprint41"> <a href="https://sonarcloud.io/summary/new_code?id=circles-arrows_blueprint41"><img alt="Quality Gate Status" src="https://sonarcloud.io/api/project_badges/measure?project=circles-arrows_blueprint41&metric=alert_status"></a> </div> </div>
</div>

.NET ORM for Neo4j and Memgraph Database

Simplify database operations through generated data access objects.

Frictionless Development with Intellisense

Neo4j Plugins (Optional)

• Download Blueprint41 plugin for Neo4j v5, Neo4j v4 or Neo4j v3.
• Download APOC plugin here.

To learn more, please visit Extension and Plugins.

Documentation

To learn more, please visit Blueprint41 wiki.

Connection

PersistenceProvider.CurrentPersistenceProvider = new Neo4JPersistenceProvider($"bolt://localhost:7687", $"neo4j", $"password");

Automated Deployment of Schema Upgrades

// Datastore defines the latest schema definition
Datastore model = new Datastore();

// Sync database schema with the latest upgrade scripts
model.Execute(true);

Type Safe Creation of Nodes and Relationships

using (Transaction.Begin())
{
    Movie matrix = new Movie()
    {
        Title = "The Matrix",
        Tagline = "Welcome to the Real World",
        Released = new DateTime(1999, 3, 31)
    };

    Person keanu = new Person()
    {
        Name = "Keanu Reeves",
        Born = new DateTime(1964, 9, 2)
    };

    Person lana = new Person()
    {
        Name = "Lana Wachowski",
        Born = new DateTime(1961, 7, 30)
    };

    Person lilly = new Person()
    {
        Name = "Lilly Wachowski",
        Born = new DateTime(1967, 12, 29)
    };
    
    // Creates relationship via Type-safe generated objects
    movie.Actors.Add(keanu);
    movie.Directors.Add(lana);
    movie.Directors.Add(lilly);
    movie.Genre.Add(Genre.Load(Genre.StaticData.Name.Action));
    movie.Genre.Add(Genre.Load(Genre.StaticData.Name.Sci_Fi));

    // Commits detected changes to database
    Transaction.Commit(); 
}

Type Safe Querying of the Graph

using (Transaction.Begin())
{
    // Get Movies of Keanu(Direct relationship)
    Person keanu = Person.LoadByName("Keanu Reeves");
    EntityCollection<Movie> movies = keanu.ActedIn; // Movies are retrieve here

    // Get Director of Keanu(Spans multiple relationships)
    var query = Transaction.CompiledQuery
    .Match
    (
        Node.Person.Alias(out var director)
            .In.PERSON_DIRECTED_MOVIE.Out.
        Movie
            .Out.PERSON_ACTED_IN_MOVIE.In.
        Person.Alias(out var actor)
    )
    .Where(actor.Name == "Keanu Reeves")
    .Return(director)
    .Compile();

    List<Person> directors = Person.LoadWhere(query);
}