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Diffstat (limited to 'guides')
| -rw-r--r-- | guides/source/active_record_querying.md | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/guides/source/active_record_querying.md b/guides/source/active_record_querying.md index bdfcfd92ce..94b8453f04 100644 --- a/guides/source/active_record_querying.md +++ b/guides/source/active_record_querying.md @@ -790,6 +790,32 @@ SELECT * FROM clients WHERE orders_count > 10 ORDER BY clients.id DESC This method accepts **no** arguments. +### `rewhere` + +The `rewhere` method overrides an existing, named where condition. For example: + +```ruby +Post.where(trashed: true).rewhere(trashed: false) +``` + +The SQL that would be executed: + +```sql +SELECT * FROM posts WHERE `trashed` = 0 +``` + +In case the `rewhere` clause is not used, + +```ruby +Post.where(trashed: true).where(trashed: false) +``` + +the SQL executed would be: + +```sql +SELECT * FROM posts WHERE `trashed` = 1 AND `trashed` = 0 +``` + Null Relation ------------- |