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Mar 3 2019

Reselect, negative enum scopes and more!

Why hello there! Tim here bringing you all the latest and greatest from This Week In Rails.
Some sugar around enum values allows you to make negative scopes such as 

Post.not_drafted # => where.not(status: :drafted)
Allows you to change a previously set select statement in the same manner to rewhere and reorder, e.g. 

Post.select(:title, :body).reselect(:created_at)
#size would ignore the DISTINCT in the select, giving a different result to #count. This is now fixed!
If you attached a has_one_attachment attachment, you may have found that the attachment's _blob method would have returned nil. This was fixed by assigning the blob when the attachment is assigned. 
22 people contributed to Rails since our last issue; you can see the full list of changes here.

Until next week!
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