42 lines
1.6 KiB
C#
42 lines
1.6 KiB
C#
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using Microsoft.EntityFrameworkCore.ChangeTracking;
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using System.Text.Json.Serialization;
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using System.Text.Json;
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namespace Persistence.Database;
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public static class EFExtensions
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{
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private static readonly JsonSerializerOptions jsonSerializerOptions = new()
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{
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AllowTrailingCommas = true,
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WriteIndented = true,
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NumberHandling = JsonNumberHandling.AllowReadingFromString | JsonNumberHandling.AllowNamedFloatingPointLiterals,
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};
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public static Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder<TProperty> HasJsonConversion<TProperty>(
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this Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder<TProperty> builder)
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=> HasJsonConversion(builder, jsonSerializerOptions);
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public static Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder<TProperty> HasJsonConversion<TProperty>(
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this Microsoft.EntityFrameworkCore.Metadata.Builders.PropertyBuilder<TProperty> builder,
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JsonSerializerOptions jsonSerializerOptions)
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{
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builder.HasConversion(
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s => JsonSerializer.Serialize(s, jsonSerializerOptions),
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s => JsonSerializer.Deserialize<TProperty>(s, jsonSerializerOptions)!);
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ValueComparer<TProperty> valueComparer = new(
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(a, b) =>
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(a != null) && (b != null)
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? a.GetHashCode() == b.GetHashCode()
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: (a == null) && (b == null),
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i => (i == null) ? -1 : i.GetHashCode(),
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i => i);
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builder.Metadata.SetValueComparer(valueComparer);
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return builder;
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}
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}
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