සැකිල්ල:Subjects/leaf
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This template adds the current page (presumed to be the main page of a book) to a specified subject category, and tries to add it to the allbooks categories of that subject and all that subject's ancestors.
භාවිතය[සංස්කරණය]
There are two parameters, one required and non-blank, the other optional.
1— Required. Names the subject to add the book to.diagnose— Optional. If blank, error conditions result only in addition of the book to hidden Category:Attention needed (allbooks). If non-blank, diagnostic messages are also generated, with suggested remedies and buttons for effecting them.
Only addition to the named subject, Category:{{{1}}}, is done within this template; population of allbooks categories is delegated to {{Subjects/0}}.
This template is also responsible for populating Category:Books with book name as subject.