Hello Jeremy
Thank you for your advice.
It seems good.
def find_from_top_join(search_path)
ds = FileTree.roots_dataset.from_self
search_path[1..-1].split('/').each_with_index do |name, i|
ds = ds.join(Sequel.as(:file_trees, "n#{i}") , :parent_id=>:id,
:name=>name)
end
ds.first
end
def find_from_top(search_path)
current = FileTree.root
search_path[1..-1].split('/').each do |name|
break unless current = current.children_dataset.first(:name=>name)
end
current
end
--
Hiroyuki Sato.
2014年7月2日水曜日 0時01分52秒 UTC+9 Jeremy Evans:
>
> On Tuesday, July 1, 2014 2:45:52 AM UTC-7, Hiroyuki Sato wrote:
>>
>> Hello Jeremy .
>>
>> Thank you for your advice.
>>
>> You mean that the folloiwng?
>>
>> I'll practice to use join method.
>>
>>
>>
>> def find_from_top_join(search_path)
>> ds = FileTree.roots_dataset.from_self #<-- change here
>> search_path[1..-1].split('/').each_with_index do |name, i|
>> ds = ds.join(:file_trees.as("n#{i}"), :parent_id=>:id, :name=>name)
>>
>
> You could use Sequel.as(:file_trees, "n#{i}") here to avoid usage of the
> core_extensions (no longer on by default for about a year). Sorry I didn't
> think about that the first time.
>
> Thanks,
> Jeremy
>
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