/// <inheritdoc/>
public void ProcessEntityTypeAdded(
IConventionEntityTypeBuilder entityTypeBuilder,
IConventionContext <IConventionEntityTypeBuilder> context)
{
var clrType = entityTypeBuilder.Metadata.ClrType;
if (clrType is not null && Attribute.IsDefined(clrType, typeof(SoftDeleteAttribute)))
{
var attribute = clrType.GetCustomAttribute <SoftDeleteAttribute>() !;
if (clrType.GetProperty(attribute.IsDeleted) is PropertyInfo info)
{
if (info.PropertyType != typeof(bool))
{
throw new TypeAccessException(string.Format(CoreStrings.SoftDeletedType_Invalid, info.Name));
}
entityTypeBuilder.Property(info.PropertyType, info.Name, true).HasComment(attribute.Comment, true);
}
else
{
entityTypeBuilder.Property(typeof(bool), attribute.IsDeleted, true).HasComment(attribute.Comment, true);
}
// add query filter
var parameter = Expression.Parameter(clrType, "filter");
entityTypeBuilder.HasQueryFilter(
Expression.Lambda(
Expression.Equal(
Expression.Call(typeof(EF), nameof(EF.Property), new[] { typeof(bool) }, parameter,
Expression.Constant(attribute.IsDeleted)), Expression.Constant(false)), parameter),
true);
}
}
