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POCombine rows of m/d/y & integer for use with charts in ruby
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12323558
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2012-09-14T03:13:51.513
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2012-09-07T18:33:45.750
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2017-05-23T11:48:26.877
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<blockquote> <p><strong>Possible Duplicate:</strong><br> <a href="https://stackoverflow.com/questions/12371279/rails-activerecord-group-by-sum-db-results-for-use-with-lazy-highcharts">Rails ActiveRecord group_by & sum db results for use with Lazy HighCharts</a> </p> </blockquote> <p>I am completely new to RoR/Ruby and i am using Lazy High Charts gem to generate some purdy charts based on some database information.</p> <p>I have tried the answers that were provided but i am still a bit confused as to how to do this..</p> <p>I need to sum amount_used, and billed_amount and group by month/year (e.g; Aug/2012)</p> <p>The end result will be something similar to a dual axis chart with two series "Amount Used", and "Cost".. This information is specific to a certain account_id. </p> <p><img src="https://i.stack.imgur.com/VwUYZ.png" alt="enter image description here"></p> <h2>Invoices table</h2> <pre><code>+---------------+--------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +---------------+--------------+------+-----+---------+----------------+ | id | int(11) | NO | PRI | NULL | auto_increment | | account_id | int(11) | YES | | NULL | | | invoice_date | varchar(255) | YES | | NULL | | | amount_used | float | YES | | NULL | | | billed_amount | float | YES | | NULL | | | comments | text | YES | | NULL | | | created_at | datetime | NO | | NULL | | | updated_at | datetime | NO | | NULL | | +---------------+--------------+------+-----+---------+----------------+ </code></pre> <h2>Controller Chart Code</h2> <pre><code>@account = Account.find(params[:id]) @invoices = Invoice.where("account_id = #{@account.id}").order("invoice_date DESC") @h = LazyHighCharts::HighChart.new('area') do |f| f.options[:chart][:defaultSeriesType] = "area" #Sample dates right now, should be the grouped_by :invoice_date f.xAxis( :categories => ['May', 'Jun', 'Jul'] ) f.yAxis([ { :title => { :text => "Amount Used" } }, { :title => { :text => "Cost" }, :opposite => true } ]) #Sample data right now, should be the summed amounts of the :amount_used correpsonding for each above grouped invoice_date f.series(:name => "Amount Used", :data => [100,300,500] ) #Sample data right now, should be the summed amounts of the :billed_amount correpsonding for each above grouped invoice date f.series(:name => "Cost", :yAxis => 1, :data => [200,400,600] ) end </code></pre>
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<ruby-on-rails><ruby>
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Combine rows of m/d/y & integer for use with charts in ruby
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