Class: GoodJob::ScheduledByQueueChart

Inherits:
BaseChart
  • Object
show all
Defined in:
app/charts/good_job/scheduled_by_queue_chart.rb

Instance Method Summary collapse

Methods inherited from BaseChart

#start_end_binds, #string_to_hsl

Constructor Details

#initialize(filter) ⇒ ScheduledByQueueChart 



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# File 'app/charts/good_job/scheduled_by_queue_chart.rb', line 5

def initialize(filter)
  super()
  @filter = filter
end

Instance Method Details

#data ⇒ Object 



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# File 'app/charts/good_job/scheduled_by_queue_chart.rb', line 10

def data
  count_query = "    SELECT *\n    FROM generate_series(\n      date_trunc('hour', $1::timestamp),\n      date_trunc('hour', $2::timestamp),\n      '1 hour'\n    ) timestamp\n    LEFT JOIN (\n      SELECT\n          date_trunc('hour', scheduled_at) AS scheduled_at,\n          queue_name,\n          count(*) AS count\n        FROM (\n          \#{@filter.filtered_query.except(:select, :order).select(:queue_name, :scheduled_at).to_sql}\n        ) sources\n        GROUP BY date_trunc('hour', scheduled_at), queue_name\n    ) sources ON sources.scheduled_at = timestamp\n    ORDER BY timestamp ASC\n  SQL\n\n  executions_data = GoodJob::Job.connection.exec_query(GoodJob::Job.pg_or_jdbc_query(count_query), \"GoodJob Dashboard Chart\", start_end_binds)\n\n  queue_names = executions_data.reject { |d| d['count'].nil? }.map { |d| d['queue_name'] || BaseFilter::EMPTY }.uniq\n  labels = []\n  queues_data = executions_data.to_a.group_by { |d| d['timestamp'] }.each_with_object({}) do |(timestamp, values), hash|\n    labels << timestamp.in_time_zone.strftime('%H:%M')\n    queue_names.each do |queue_name|\n      (hash[queue_name] ||= []) << values.find { |d| d['queue_name'] == queue_name }&.[]('count')\n    end\n  end\n\n  {\n    type: \"line\",\n    data: {\n      labels: labels,\n      datasets: queues_data.map do |queue, data|\n        label = queue || '(none)'\n        {\n          label: label,\n          data: data,\n          backgroundColor: string_to_hsl(label),\n          borderColor: string_to_hsl(label),\n        }\n      end,\n    },\n    options: {\n      scales: {\n        y: {\n          beginAtZero: true,\n        },\n      },\n    },\n  }\nend\n".squish