回答編集履歴
1
配列に格納
test
CHANGED
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@@ -1,14 +1,66 @@
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```ruby
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@user = current_user.id
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con = ActiveRecord::Base.connection
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-
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sql = "SELECT
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DATE_FORMAT(start_time, '%Y-%m-%d') as start_time, SUM(estimated_time), SUM(actual_time)
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FROM
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tasks
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WHERE user_id = #{@user}
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GROUP BY DATE_FORMAT(start_time, '%Y-%m-%d')"
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@result
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@result = con.select_all(sql)
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# output
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[{"start_time"=>"2020-05-10", "SUM(estimated_time)"=>2.0, "SUM(actual_time)"=>3.0}, {"start_time"=>"2020-05-20", "SUM(estimated_time)"=>2.0, "SUM(actual_time)"=>3.0}, {"start_time"=>"2020-06-08", "SUM(estimated_time)"=>1.0, "SUM(actual_time)"=>1.0}
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# Chart.jsで表示するため、viewsで配列に変更
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<% a = [] %>
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<% b = [] %>
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<% c = [] %>
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<% @result.each do |f| %>
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<% a.push f['start_time'] %>
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<% b.push f['SUM(estimated_time)'] %>
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<% c.push f['SUM(actual_time)'] %>
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<% end %>
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# output
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a
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["2020-05-10","2020-05-16","2020-05-20","2020-06-05","2020-06-08","2020-06-29"]
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b
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[2.0, 2.0, 2.0, 3.0, 1.0, 1.0]
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c
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[3.0, 3.0, 3.0, 3.0, 1.0, 1.0]
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64
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14
66
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