I have a rails active record query which returns a count of the the number of items in each category. In the form
Category.joins(:item).group("category_id").count
=> {1=>1, 2=>3}
which gives the correct result. I'm having an issue including the category name in the result along with item count. How do I include category name eg.
1, Severe => 1,
2, Minor => 3
Thanks!
试试这个
Category.joins(:item).group("categories.name").count
You could do:
Category.joins(:item).group([:category_id, :category_name]).count
Then you would get something like below:
{[1, "Severe"]=>1, [2, "Minor"]=>3}
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