Created
September 6, 2020 09:44
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| # Returns nils and strings | |
| Model.where(:url.ne => "").count | |
| # Returns strings and "" | |
| Model.where(:url.ne => nil).count | |
| # Returns strings, nils and "" | |
| Model.where(:url.ne => ["", nil]).count | |
| Model.where(:url.nin => ["", nil]).count | |
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source : https://stackoverflow.com/questions/10337847/select-where-not-null-or-empty-in-mongoid