public async Task <TagDto> ShiftTo(TagShiftDto input)
{
CheckUpdatePermission();
Tag tag = await Repository.FirstOrDefaultAsync(input.Id);
tag.DetachFromParent();
if (input.NewParentId.HasValue)
{
Tag parent = await Repository.FirstOrDefaultAsync(input.NewParentId.Value);
tag.AttachToParent(parent);
}
Tag shiftedTag = await Repository.UpdateAsync(tag);
return(MapToEntityDto(shiftedTag));
}
public async Task ShiftTag_Test()
{
await CreateTagTree1();
await CreateTagTree2();
// Shift Sub
TagShiftDto tagShiftDto = new TagShiftDto {
Id = 9, NewParentId = 1
};
TagDto shiftedTagDto = await tagAppService.ShiftTo(tagShiftDto);
// Unit test project does not support lazy loading.
// Navigation properties need eager loading.
await UsingDbContextAsync(async context =>
{
Tag root1Tag = await context.Tags.Include(t => t.Children)
.ThenInclude(t => t.Children).FirstOrDefaultAsync(t => t.Id == 1);
root1Tag.Children.Count.ShouldBe(3);
Tag shiftedSubTag = root1Tag.Children.ToList()[2];
shiftedSubTag.Name.ShouldBe("Sub21");
shiftedSubTag.Children.Count.ShouldBe(1);
});
}
