ef core 1: news features and changes

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Entity Framework Core 1 (formerly EF 7):New features and changes

Manfred Steyer

About me …

Manfred Steyer

Trainer & Consultant

Angular & .NET

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Contents

Entity Framework Today

Current Influences

Entity Framework Tomorrow

DEMO

Conclusion

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ENTITY FRAMEWORK TODAY

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EF 6.x

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O/R-MapperMature

(since 2008)Optimized

Ecosystem Integration

Recommended LINQ

Modes of Operation

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• Model First

• DB First

Mapping via XML

• Code First

• Code First with Reverse Engineering

Mapping via Code

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Code First brings several advantages

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Reverse Engineering

Source ControlMore Intuitive for

Developers

More Freedom for Developers

Code-basedConfiguration

Conventions

Migrations

DbContext

Object Model

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ObjectContext

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CURRENT INFLUENCES

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ENTITY FRAMEWORK TOMORROW

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Goals

Reach

• .NET Core

• NoSQL

Tity up

• Focus: Code First

• RIP ObjectContext

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Non-Goals

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• Yes, but only when itreally makes sense

API-Changes

• NoSQL != RDBMSAbstract

Paradigms

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Migration

You have to modify existing code

Don't do it now!

Current Version 6.x will stay

Feature Set now

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EF 6

EF Core 1

EF 6 is still the recommended version!

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Feature Set in Future

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EF 6

EF Core 1.x+

Some Limitations in EF Core 1.x

M:N-Relations

Model it with two 1:N

Lazy Loading

Just TPH-Inheritance

Complex Types

Custom Conventions

Mappings to Stored Procedures

Update Model from Database

Non-relational Providers

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Some new Features

Handling of detached Entities

Improvements for Eager-Loading and Batching

Client-Evaluation and Raw SQL

Shadow State

Alternate Keys

Linux, Universal-Apps

PostgreSQL, SQLite

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Core 1.x or 6.x

Web with.NET Core

EF Core 1.0

Universal Apps

EF Core 1.0

ElseEF 6.x

Code Frist

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DEMO

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Conclusion

EF Core 1.x: Spring-Cleaning

Getting rid of Legacy

One Mode of Operation: "Code First"

Time seems to be fitting: .NET Core

Increasing Reach:

NoSQL, Linux, Universal-Apps (.NET Core)

Providers for SQL Server, PostgreSQL, SQLite

New features, like Batching or Shadow Properties

EF 6.x is still recommended

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manfred.steyer@SOFTWAREarchitekt.at

SOFTWAREarchitekt.at

ManfredSteyer

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