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Attribute for configuring composite primary keys #27571

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merged 8 commits into from
Mar 14, 2022
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ajcvickers
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Fixes #11003

This PR introduces a new [PrimaryKey] which follows the same pattern as [Index] in that it is applied to the entity type class and takes an ordered list of property names. It takes precedence over any [Key] attributes on properties, since these may still be needed for OData or other technologies. PrimaryKey and Keyless cannot be used on the same type.

@ajcvickers ajcvickers requested a review from a team March 4, 2022 13:19
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@roji roji left a comment

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Here's a first round of comments, @AndriySvyryd will probably also want to take a look.

src/EFCore.Abstractions/PrimaryKeyAttribute.cs Outdated Show resolved Hide resolved
src/EFCore.Abstractions/PrimaryKeyAttribute.cs Outdated Show resolved Hide resolved
src/EFCore.Abstractions/PrimaryKeyAttribute.cs Outdated Show resolved Hide resolved
src/EFCore.Abstractions/PrimaryKeyAttribute.cs Outdated Show resolved Hide resolved
src/EFCore/Metadata/Conventions/KeyAttributeConvention.cs Outdated Show resolved Hide resolved
src/EFCore/Properties/CoreStrings.Designer.cs Outdated Show resolved Hide resolved
src/EFCore/Properties/CoreStrings.resx Outdated Show resolved Hide resolved
src/EFCore.Abstractions/PrimaryKeyAttribute.cs Outdated Show resolved Hide resolved
@ajcvickers
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New version up.

ajcvickers and others added 8 commits March 14, 2022 10:08
Fixes #11003

This PR introduces a new `[PrimaryKey]` which follows the same pattern as `[Index]` in that it is applied to the entity type class and takes an ordered list of property names. It takes precedence over any `[Key]` attributes on properties, since these may still be needed for OData or other technologies. `PrimaryKey` and `Keyless` cannot be used on the same type.
@ajcvickers ajcvickers merged commit 5ae9bb7 into main Mar 14, 2022
@ajcvickers ajcvickers deleted the CompostableKey0302 branch March 14, 2022 11:54
@paulodero
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Great feature! A much better way to define composite keys in efcore.

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Attribute (Data Annotations) mapping for composite primary keys
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