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Diffstat (limited to 'guides/source/active_record_querying.md')
| -rw-r--r-- | guides/source/active_record_querying.md | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/guides/source/active_record_querying.md b/guides/source/active_record_querying.md index 18a5342a2f..7fe9b8b4af 100644 --- a/guides/source/active_record_querying.md +++ b/guides/source/active_record_querying.md @@ -514,7 +514,13 @@ SELECT * FROM clients WHERE (clients.orders_count IN (1,3,5)) Post.where.not(author: author) ``` -In other words, this query can be generated by calling `where` with no argument, then immediately chain with `not` passing `where` conditions. +In other words, this query can be generated by calling `where` with no argument, +then immediately chain with `not` passing `where` conditions. This will generate +SQL code like this: + +```sql +SELECT * FROM posts WHERE (author_id != 1) +``` Ordering -------- @@ -543,11 +549,11 @@ Client.order("orders_count ASC, created_at DESC") Client.order("orders_count ASC", "created_at DESC") ``` -If you want to call `order` multiple times e.g. in different context, new order will prepend previous one +If you want to call `order` multiple times e.g. in different context, new order will append previous one ```ruby Client.order("orders_count ASC").order("created_at DESC") -# SELECT * FROM clients ORDER BY created_at DESC, orders_count ASC +# SELECT * FROM clients ORDER BY orders_count ASC, created_at DESC ``` Selecting Specific Fields @@ -711,7 +717,7 @@ Post.order('id DESC').limit(20).unscope(:order, :limit) = Post.all You can additionally unscope specific where clauses. For example: ```ruby -Post.where(id: 10).limit(1).unscope(:where, :limit).order('id DESC') = Post.order('id DESC') +Post.where(id: 10).limit(1).unscope({ where: :id }, :limit).order('id DESC') = Post.order('id DESC') ``` ### `only` |