1. 11 Dec, 2017 1 commit
    • Sean McGivern's avatar
      Add cop for use of remove_column · 1ab33b15
      Sean McGivern authored
      remove_column should only be used in the up (or change) step of a migration if
      it's a post-deployment migration. Otherwise there will be downtime due to the
      ActiveRecord column cache, which we can avoid by using the IgnorableColumn
      concern in combination with a post-deployment migration.
      1ab33b15
  2. 29 May, 2017 1 commit
  3. 23 Feb, 2017 2 commits
  4. 29 Jun, 2016 1 commit
    • Yorick Peterse's avatar
      Added RuboCop cops for checking DB migrations · c740445a
      Yorick Peterse authored
      There are currently two cops for this:
      
      * Migration/AddIndex: checks if indexes are added concurrently
      * Migration/ColumnWithDefault: checks if columns with default values are
        added in a concurrent manner
      
      Both cops are fairly simple and make no attempt at correcting the code
      as this is quite hard to do (e.g. modifications may need to be applied
      in various places in the same file). They however should provide enough
      to catch people ignoring the comments in generated migrations telling
      them to use add_concurrent_index or add_column_with_default.
      c740445a