Franklin89 / EFCore.SqlServer.NodaTime

EFCore.SqlServer.NodaTime

Adds native support to EntityFrameworkCore for SQL Server for the NodaTime types.

The following types are supported:

• Instant
• OffsetDateTime
• LocalDateTime
• LocalDate
• LocalTime
• Duration

Unit Tests

All types and their methods have unit tests written to verify that the SQL is translated as expected. See individual tests for more information.

Usage

To use, simply install the NuGet package:

Install-Package SimplerSoftware.EntityFrameworkCore.SqlServer.NodaTime

Then call the UseNodaTime() method as part of your SqlServer configuration during the UseSqlServer method call:

Using Microsoft.EntityFrameworkCore.SqlServer.NodaTime.Extensions;

options.UseSqlServer("your DB Connection",
                    x => x.UseNodaTime());

DATEADD Support

The SQL DATEADD function is supported for the following types:

• Instant (extension methods)
• OffsetDateTime (native and some extension methods)
• LocalDateTime (native and some extension methods)
• LocalDate (native and some extension methods)
• LocalTime (native and some extension methods)
• Duration (native and some extension methods)

Note: Please add a using statement in order to use the extension methods:

Using Microsoft.EntityFrameworkCore.SqlServer.NodaTime.Extensions;

Supported Methods

• PlusYears
• PlusMonths
• PlusDays
• PlusHours
• PlusMinutes
• PlusSeconds
• PlusMilliseconds

Using Microsoft.EntityFrameworkCore.SqlServer.NodaTime.Extensions;

// PlusYears
await this.Db.RaceResult
    .Where(r => r.StartTime.PlusYears(1) >= Instant.FromUtc(2019, 7, 1, 1, 0))
    .ToListAsync();

// Translates to: 
// SELECT [r].[Id], [r].[EndTime], [r].[StartTime], [r].[StartTimeOffset] 
// FROM [RaceResult] AS [r] WHERE DATEADD(year, CAST(1 AS int), [r].[StartTime]) >= '2019-07-01T01:00:00.0000000Z'

DATEPART Support

The SQL DATEPART function is supported for the following types:

• Instant (extension methods)
• OffsetDateTime (native and some extension methods)
• LocalDateTime (native and some extension methods)
• LocalDate (native and some extension methods)
• LocalTime (native and some extension methods)
• Duration (native and some extension methods)

Note: Please add a using statement in order to use the extension methods:

Using Microsoft.EntityFrameworkCore.SqlServer.NodaTime.Extensions;

Supported Methods

• Year
• Quarter
• Month
• DayOfYear
• Day
• Week
• WeekDay
• Hour
• Minute
• Second
• Millisecond
• Microsecond
• Nanosecond
• TzOffset
• IsoWeek

Using Microsoft.EntityFrameworkCore.SqlServer.NodaTime.Extensions;

// Compare the 'Year' DatePart
await this.Db.RaceResult
    .Where(r => r.StartTime.Year() == 2019)
    .ToListAsync();

// Translates to: 
// SELECT [r].[Id], [r].[EndTime], [r].[StartTime], [r].[StartTimeOffset] 
// FROM [RaceResult] AS [r] WHERE DATEPART(year, [r].[StartTime]) = 2019