Commit 088735b39ae92117aa914c2116f5410892cf89dd
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Merge branch 'tags-case' into master
See merge request !563
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| 1 | +class FixTagsCaseDifferences < ActiveRecord::Migration | ||
| 2 | + def up | ||
| 3 | + tags = ActsAsTaggableOn::Tag.joins('LEFT JOIN tags as b on LOWER(tags.name) = b.name').where('b.id is null') | ||
| 4 | + tags.find_each do |tag| | ||
| 5 | + unless ActsAsTaggableOn::Tag.exists?(:name => tag.name.mb_chars.downcase) | ||
| 6 | + ActsAsTaggableOn::Tag.create(:name => tag.name.mb_chars.downcase) | ||
| 7 | + end | ||
| 8 | + end | ||
| 9 | + | ||
| 10 | + execute("UPDATE taggings SET tag_id = new.id FROM taggings AS t INNER JOIN tags AS old ON t.tag_id = old.id INNER JOIN tags AS new ON LOWER(old.name) = new.name WHERE old.id != new.id AND taggings.id = t.id") | ||
| 11 | + | ||
| 12 | + execute("UPDATE tags SET taggings_count = (SELECT COUNT(*) FROM taggings WHERE taggings.tag_id = tags.id)") | ||
| 13 | + execute("DELETE FROM tags WHERE taggings_count = 0") | ||
| 14 | + end | ||
| 15 | + | ||
| 16 | + def down | ||
| 17 | + say 'This migration is irreversible.' | ||
| 18 | + end | ||
| 19 | +end |