964f37476d
Our schema allows `category.topic_id` to be NULL. Null values shouldn't actually happen in production, but it is very common in tests because `Fabricate(:category)` skips creating the definition topic to improve performance. Before this commit, a NULL category.topic_id would cause all subcategory topics to be excluded from a TopicQuery result. This is because, in postgres, `NULL <> anything` is falsy. Instead, we can use `IS DISTINCT FROM`, which will return true when NULL is compared to a non-NULL value. |
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| .. | ||
| fabricators | ||
| fixtures | ||
| helpers | ||
| import_export | ||
| initializers | ||
| integration | ||
| integrity | ||
| jobs | ||
| lib | ||
| mailers | ||
| models | ||
| multisite | ||
| requests | ||
| script/import_scripts | ||
| serializers | ||
| services | ||
| support | ||
| system | ||
| tasks | ||
| views | ||
| rails_helper.rb | ||
| regenerate_swagger_docs | ||
| swagger_helper.rb | ||