42 lines
642 B
Ruby
42 lines
642 B
Ruby
module PostSets
|
|
class Base
|
|
def has_wiki?
|
|
false
|
|
end
|
|
|
|
def wiki_page
|
|
nil
|
|
end
|
|
|
|
def has_artist?
|
|
false
|
|
end
|
|
|
|
def artist
|
|
nil
|
|
end
|
|
|
|
def is_single_tag?
|
|
false
|
|
end
|
|
|
|
def presenter
|
|
raise NotImplementedError
|
|
end
|
|
|
|
def arbitrary_sql_order_clause(ids, table_name)
|
|
if ids.empty?
|
|
return "#{table_name}.id desc"
|
|
end
|
|
|
|
conditions = []
|
|
|
|
ids.each_with_index do |x, n|
|
|
conditions << "when #{x} then #{n}"
|
|
end
|
|
|
|
"case #{table_name}.id " + conditions.join(" ") + " end"
|
|
end
|
|
end
|
|
end
|