EF Core 1: News features and changes

1. 1
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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2. 2
Contents
Entity Framework Today
Current Influences
Entity Framework Tomorrow
DEMO
Conclusion
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ENTITY FRAMEWORK TODAY
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3. 3
EF 6.x
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O/R-Mapper
Mature
(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

4. 4
Code First brings several advantages
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Reverse
Engineering
Source Control
More Intuitive for
Developers
More Freedom
for Developers
Code-based
Configuration
Conventions
Migrations
DbContext
Object Model
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ObjectContext

5. 5
CURRENT INFLUENCES
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Folie 12

6. 6
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ENTITY FRAMEWORK
TOMORROW
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7. 7
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 it
really makes sense
API-
Changes
• NoSQL != RDBMS
Abstract
Paradigms

8. 8
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!

9. 9
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

10. 10
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
Else EF 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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