What's new in EF7: Custom RevEng Templates #3995
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ErikEJ
reviewed
Aug 24, 2022
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| For large models, the OnModelCreating method of the DbContext class can become unmanageably large. One way to address this is to use `IEntityTypeConfiguration<T>` classes. See [Creating and configuring a model](xref:core/modeling/index#grouping-configuration) for more information about these classes. | ||
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| To scaffold these classes, you can use a third template called `EntityTypeConfiguration.t4`. Like the `EntityType.t4` template, it gets used for each entity type in the model and uses the `EntityType` template parameter. |
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Where can we get a sample of this template?
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AFAIK one doesn't exist yet. 🙂
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An example would be great 🥳
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+1 We hope to provide it (and other template flavors) eventually. Probably as a community-driven project.
Here's the gist of what it would look like:
<#@ parameter name="EntityType" type="Microsoft.EntityFrameworkCore.Metadata.IEntityType" #>
<#@ parameter name="NamespaceHint" type="System.String" #>
using Microsoft.EntityFrameworkCore;
namespace <#= NamespaceHint #>;
public class <#= EntityType.Name #>Configuration : IEntityTypeConfiguration<<#= EntityType.Name #>>
{
public void Configure(EntityTypeBuilder<<#= EntityType.Name #>> builder)
{
<#
// TODO: Move code from DbContext.t4 to here
#>
}
}
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I will have a play with it. I already have a DbContext splitting option that can use this.
ErikEJ
reviewed
Aug 24, 2022
entity-framework/core/managing-schemas/scaffolding/templates.md
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bricelam
commented
Aug 24, 2022
ajcvickers
approved these changes
Aug 24, 2022
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Resolves #3976