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migrate_unless

Overrides the default migration templates to double-check whether tables and columns exist or not before database changes are made.

Ranking: 150,306 of 188,466

Downloads: 3,751

Ranking: 128,066 of 188,453

Downloads: 0

Rank	Downloads	Name

Rank	Downloads	Name
1	3,101,437,810	bundler
10	1,196,142,341	rake

#	Gravatar	Handle
1		Zoltok