FlexLabs.EntityFrameworkCore.Upsert 1.0.0

There is a newer version of this package available.
See the version list below for details.
dotnet add package FlexLabs.EntityFrameworkCore.Upsert --version 1.0.0
NuGet\Install-Package FlexLabs.EntityFrameworkCore.Upsert -Version 1.0.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="FlexLabs.EntityFrameworkCore.Upsert" Version="1.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add FlexLabs.EntityFrameworkCore.Upsert --version 1.0.0
#r "nuget: FlexLabs.EntityFrameworkCore.Upsert, 1.0.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install FlexLabs.EntityFrameworkCore.Upsert as a Cake Addin
#addin nuget:?package=FlexLabs.EntityFrameworkCore.Upsert&version=1.0.0

// Install FlexLabs.EntityFrameworkCore.Upsert as a Cake Tool
#tool nuget:?package=FlexLabs.EntityFrameworkCore.Upsert&version=1.0.0

In it's simplest form, it can be used as follows:

DataContext.Upsert(new Country
    {
        Name = "Australia",
        ISO = "AU",
    })
    .On(c => c.ISO)
    .RunAsync();

The first parameter will be used to insert new entries to the table, the second one is used to identify the columns used to find matching rows.
If the entry already exists, the command will update the remaining columns to match the entity passed in the first argument.

In some cases, you don't want ALL the entities to be changed. An example field that you wouldn't want updated is the Created field. You can use a third parameter to select which columns and values to set in case the entity already exists:

DataContext.Upsert(new Country
    {
        Name = "Australia",
        ISO = "AU",
        Created = DateTime.UtcNow,
    })
    .On(c => c.ISO)
    .UpdateColumns(c => new Country
    {
        Name = "Australia"
        Updated = DateTime.UtcNow,
    })
    .RunAsync();

Finally, sometimes you might want to update a column based on the current value in the table. For example, if you want to increment a column. You can use the following syntax (basic support for incrementing and decrementing values is currently implemented):
You can also see how to implement the multi column record matching:

DataContext.Upsert(new DailyVisits
    {
        UserID = userID,
        Date = DateTime.UtcNow.Date,
        Visits = 1,
    })
    .On(v => new { v.UserID, v.Date })
    .UpdateColumns(v => new DailyVisits
    {
        Visits = v.Visits + 1,
    })
    .RunAsync();
Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp2.0 is compatible.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

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Repository Stars
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Version Downloads Last updated
8.0.0 85,316 12/3/2023
7.0.0 634,176 12/18/2022
7.0.0-beta.2 6,147 11/22/2022
7.0.0-beta.1 419 11/16/2022
6.0.2 298,511 11/16/2022
6.0.1 2,847,269 1/2/2022
6.0.0-preview5 54,428 7/11/2021
5.1.0 63,567 1/2/2022
5.0.0 344,535 7/11/2021
4.0.1 26,536 7/11/2021
4.0.0 366,057 3/2/2021
3.1.0 1,912,833 1/26/2020
3.0.0 104,625 9/29/2019
3.0.0-netcore3-00140 3,638 8/11/2019
2.2.1 106,417 9/17/2019
2.2.0 42,775 8/11/2019
2.1.2 82,181 5/22/2019
2.1.1 2,239 5/21/2019
2.1.0 2,757 5/19/2019
2.0.7 53,737 3/18/2019
2.0.6 11,196 2/6/2019
2.0.5 17,395 1/25/2019
2.0.4 8,594 1/3/2019
2.0.3 7,048 12/18/2018
2.0.2 11,778 11/3/2018
2.0.1 2,557 10/24/2018
2.0.0 10,919 9/19/2018
1.1.0 2,144 9/19/2018
1.0.4 13,802 3/10/2018
1.0.3 2,319 2/23/2018
1.0.2 2,150 2/20/2018
1.0.1 2,190 2/19/2018
1.0.0 2,976 2/18/2018