如何在EF Core中自定义替换Default SqlServerConventionSetBuilder？

Question

我为EF Core添加了新的PropertyAttributeConvention：

field0,field1,"field,2",field3

继承自SqlServerConventionSetBuilder以添加此约定：

public class RowGuidColumnAttributeConvention : PropertyAttributeConvention<RowGuidColumnAttribute>{
public override InternalPropertyBuilder Apply(InternalPropertyBuilder propertyBuilder, RowGuidColumnAttribute attribute, MemberInfo clrMember)
{
    propertyBuilder.HasAnnotation("RowGuidColumn", "TRUE", ConfigurationSource.DataAnnotation);
    return propertyBuilder;
}}

然后在启动文件中替换它：

public class DefaultCoreConventionSetBuilder : SqlServerConventionSetBuilder
{
    public DefaultCoreConventionSetBuilder(IRelationalTypeMapper typeMapper, ICurrentDbContext currentContext, IDbSetFinder setFinder) 
        : base(typeMapper, currentContext, setFinder)
    {    }

   public override ConventionSet AddConventions(ConventionSet conventionSet)
    {
        base.AddConventions(conventionSet);

        var rowGuid = new RowGuidColumnAttributeConvention();
        conventionSet.PropertyAddedConventions.Add(rowGuid);
        conventionSet.PropertyFieldChangedConventions.Add(rowGuid);

        return conventionSet;
    }
}

但是在结果中没有任何约定添加到模型在迁移中创建。 任何人都可以帮助我吗？

Answer 1

我解决了这个问题，

在启动文件中：

services.AddDbContext<DataContext>();

在dbcontext中覆盖OnConfiguring：

optionsBuilder
            .ReplaceService<IConventionSetBuilder, DefaultCoreConventionSetBuilder>()
            .ReplaceService<IMigrationsSqlGenerator, DefaultSqlServerMigrationSqlGenerator>()
            .UseSqlServer(_configuration["ConnectionStrings:DbConnection"]);