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Rails: Print What Models Have Ignored Columns That No Longer Exist in DB (Moved: https://github.com/sshaw/ignored_columns_tasks)
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| (ApplicationRecord.subclasses + ActiveRecord::Base.subclasses).each do |klass| | |
| next if klass.abstract_class? || klass.ignored_columns.none? | |
| ignored = klass.ignored_columns | |
| klass.ignored_columns = [] | |
| klass.reset_column_information | |
| removed = ignored - klass.column_names | |
| klass.ignored_columns = ignored | |
| next unless removed.any? | |
| printf "%s: %s\n", klass.name, removed.to_sentence | |
| end |
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rails r print-non-existant-ignored-columns.rb