Rails 4 multi table join with data from all tables - ruby-on-rails

Question

I think this is simple but I'm just not getting it. I need to join 3 tables and have rails return values from all 3. I have done a join but rails only returns values from 1 table. I think I just don't know the syntax
Here is my controller method
#previous_results = Test.joins(:run, :detail).where("runs.name = ? AND tests.name = ?", #run.name, #test.name).last(1000)
That does do a join here is the sql from it
SELECT `tests`.* FROM `tests` INNER JOIN `runs` ON `runs`.`id` = `tests`.`run_id` INNER JOIN `details` ON `details`.`test_id` = `tests`.`id`
WHERE (runs.name = 'SNMSubscriberSpecificTemplatesFeedsTest' AND tests.name = 'testSitePrefixFalseForNTINSequentialList') ORDER BY `tests`.`id` DESC LIMIT 1000
all I need to do is return values from the details table also. I want 2 column values from details essentially instead of doing test .* I was test.id, test.name, detail.text, detail.message as my return
Int active record how do I tell it to not just return test table data but also include columns in details
This query in SQL does what I want I need to know how to active record it
SELECT `tests`.*, `details`.`detail_text`, `details`.`detail_error`
FROM `tests`
INNER JOIN `runs` ON `runs`.`id` = `tests`.`run_id`
INNER JOIN `details` ON `tests`.`id` = `details`.`id`
WHERE (runs.name = 'SNMSubscriberSpecificTemplatesFeedsTest' AND tests.name = 'testSitePrefixFalseForNTINSequentialList')
ORDER BY `tests`.`id` DESC LIMIT 1000

Answer 1

#tests = Test
.select('tests.*', 'details.detail_text', 'details.detail_error')
.joins(:run, :detail)
.where(
runs: { name: 'SNMSubscriberSpecificTemplatesFeedsTest' },
tests: { name: 'testSitePrefixFalseForNTINSequentialList' }
)
.limit(1000)
.order(id: :desc)
your views would look like:
<table>
<tr>
<th>Test ID</th>
<th>Test Detail's Detail Text</th>
<th>Test Detail's Detail Error</th>
</tr>
<% #tests.each do |test| %>
<tr>
<td><%= test.id %></td>
<td><%= test.detail_text %></td>
<td><%= test.detail_error %></td>
</tr>
<% end %>
</table>
Recommendation:
do not use select() explicitly to fetch the "associated values", but instead access them directly through the objects, like below
#tests = Test
.joins(:run, :detail).includes(:detail)
.where(
runs: { name: 'SNMSubscriberSpecificTemplatesFeedsTest' },
tests: { name: 'testSitePrefixFalseForNTINSequentialList' }
)
.limit(1000)
.order(id: :desc)
your views would look something like:
<table>
<tr>
<th>Test ID</th>
<th>Test Detail's Detail Text</th>
<th>Test Detail's Detail Error</th>
</tr>
<% #tests.each do |test| %>
<tr>
<td><%= test.id %></td>
<td><%= test.detail.detail_text %></td>
<td><%= test.detail.detal_error %></td>
</tr>
<% end %>
</table>