notebook/app/views/admin/dashboard.html.erb

<div class="row">
  <div class="col s12">
    <div class="card">
      <div class="card-content">
        <div class="card-title">
          90-day signups
          <span class="right grey-text">
            <%= number_with_delimiter User.last.id %> total users
          </span>
        </div>
        <%= area_chart @reports.limit(90).pluck(:day, :user_signups), colors: ['#2196F3'] %>
      </div>
    </div>
  </div>
  <div class="col s12">
    <div class="card">
      <div class="card-content">
        <div class="card-title">
          90-day monthly subscriptions
          <span class="right grey-text">
            <%= number_with_delimiter User.where(selected_billing_plan_id: 4).count %> current total
          </span>
        </div>
        <%= 
          area_chart [
            { name: 'Started subscriptions', data: @reports.limit(90).pluck(:day, :new_monthly_subscriptions) },
            { name: 'Ended subscriptions',   data: @reports.limit(90).pluck(:day, :ended_monthly_subscriptions) }
          ],
          colors: ['#2196F3']
        %>
        <div>
          90-day net:
          <%= sprintf "%+d", @reports.limit(90).sum(:new_monthly_subscriptions) - @reports.limit(90).sum(:ended_monthly_subscriptions) %>
          subscriptions
        </div>
      </div>
    </div>
  </div>
  <div class="col s12">
    <div class="card">
      <div class="card-content">
        <div class="card-title">
          90-day trimonthly subscriptons
          <span class="right grey-text">
            <%= number_with_delimiter User.where(selected_billing_plan_id: 5).count %> current total
          </span>
        </div>
        <%=
          area_chart [
            { name: 'Started subscriptions', data: @reports.limit(90).pluck(:day, :new_trimonthly_subscriptions) },
            { name: 'Ended subscriptions',   data: @reports.limit(90).pluck(:day, :ended_trimonthly_subscriptions) }
          ],
          colors: ['#2196F3']
        %>
        <div>
          90-day net:
          <%= sprintf "%+d", @reports.limit(90).sum(:new_trimonthly_subscriptions) - @reports.limit(90).sum(:ended_trimonthly_subscriptions) %>
          subscriptions
        </div>
      </div>
    </div>
  </div>
  <div class="col s12">
    <div class="card">
      <div class="card-content">
        <div class="card-title">
          90-day annual subscriptions
          <span class="right grey-text">
            <%= number_with_delimiter User.where(selected_billing_plan_id: 6).count %> current total
          </span>
        </div>
        <%=
          area_chart [
            { name: 'Started subscriptions', data: @reports.limit(90).pluck(:day, :new_annual_subscriptions) },
            { name: 'Ended subscriptions',   data: @reports.limit(90).pluck(:day, :ended_annual_subscriptions) }
          ],
          colors: ['#2196F3']
        %>
        <div>
          90-day net:
          <%= sprintf "%+d", @reports.limit(90).sum(:new_annual_subscriptions) - @reports.limit(90).sum(:ended_annual_subscriptions) %>
          subscriptions
        </div>
      </div>
    </div>
  </div>

  <% Rails.application.config.content_types[:all].each do |content_type| %>
    <div class="col s12 m12 l4">
      <div class="card">
        <div class="card-content">
          <div class="card-title">
            New <%= content_type.name.pluralize %> each day
            <span class="right grey-text"><%= number_with_delimiter content_type.last.id %> total</span>
          </div>
          <%=
            area_chart @reports.pluck(:day, "#{content_type.name.downcase.pluralize}_created")
                               .group_by { |date, total| date.year }
                               .map { |year, data|
                                  totals_per_month = Hash.new(0)
                                  data.each { |date, count| totals_per_month[date.strftime("%b")] += (count || 0) }

                                  {
                                    name: year, 
                                    data: Date::ABBR_MONTHNAMES.reject(&:nil?).map { |month| [month, totals_per_month[month]] }
                                  }
                               },
              colors: [content_type.hex_color]
          %>
        </div>
      </div>
    </div>
  <% end %>
  <div class="col s12 m12 l4">
    <div class="card">
      <div class="card-content">
        <div class="card-title">
          New timelines
            <span class="right grey-text"><%= number_with_delimiter Timeline.last.id %> total</span>
        </div>
        <%=
          area_chart @reports.pluck(:day, :timelines_created)
                             .group_by { |date, total| date.year }
                             .map { |year, data|
                                totals_per_month = Hash.new(0)
                                data.each { |date, count| totals_per_month[date.strftime("%b")] += (count || 0) }

                                {
                                  name: year, 
                                  data: Date::ABBR_MONTHNAMES.reject(&:nil?).map { |month| [month, totals_per_month[month]] }
                                }
                              },
              colors: [Timeline.hex_color]
        %>
      </div>
    </div>
  </div>

  <div class="col s12 m12 l6">
    <div class="card">
      <div class="card-content">
        <div class="card-title">
          New stream shares
          <span class="right grey-text"><%= number_with_delimiter ContentPageShare.last.id %> total</span>
        </div>
        <%=
          area_chart @reports.pluck(:day, :stream_shares_created)
                             .group_by { |date, total| date.year }
                             .map { |year, data|
                                totals_per_month = Hash.new(0)
                                data.each { |date, count| totals_per_month[date.strftime("%b")] += (count || 0) }

                                {
                                  name: year, 
                                  data: Date::ABBR_MONTHNAMES.reject(&:nil?).map { |month| [month, totals_per_month[month]] }
                                }
                              },
              colors: [ContentPageShare.hex_color]
        %>
      </div>
    </div>
  </div>
  <div class="col s12 m12 l6">
    <div class="card">
      <div class="card-content">
        <div class="card-title">
          New stream comments
        </div>
        <%=
          area_chart @reports.pluck(:day, :stream_comments)
                             .group_by { |date, total| date.year }
                             .map { |year, data|
                                totals_per_month = Hash.new(0)
                                data.each { |date, count| totals_per_month[date.strftime("%b")] += (count || 0) }

                                {
                                  name: year, 
                                  data: Date::ABBR_MONTHNAMES.reject(&:nil?).map { |month| [month, totals_per_month[month]] }
                                }
                              },
              colors: [ContentPageShare.hex_color]
        %>
      </div>
    </div>
  </div>

  <div class="col s12 m12 l6">
    <div class="card">
      <div class="card-content">
        <div class="card-title">
          New collections
          <span class="right grey-text"><%= number_with_delimiter PageCollection.last.id %> total</span>
        </div>
        <%=
          area_chart @reports.pluck(:day, :collections_created)
                             .group_by { |date, total| date.year }
                             .map { |year, data|
                                totals_per_month = Hash.new(0)
                                data.each { |date, count| totals_per_month[date.strftime("%b")] += (count || 0) }

                                {
                                  name: year, 
                                  data: Date::ABBR_MONTHNAMES.reject(&:nil?).map { |month| [month, totals_per_month[month]] }
                                }
                              },
              colors: [PageCollection.hex_color]
        %>
      </div>
    </div>
  </div>
  <div class="col s12 m12 l6">
    <div class="card">
      <div class="card-content">
        <div class="card-title">
          New collection submissions
          <span class="right grey-text"><%= number_with_delimiter PageCollectionSubmission.last.id %> total</span>
        </div>
        <%=
          area_chart @reports.pluck(:day, :collection_submissions_created)
                             .group_by { |date, total| date.year }
                             .map { |year, data|
                                totals_per_month = Hash.new(0)
                                data.each { |date, count| totals_per_month[date.strftime("%b")] += (count || 0) }

                                {
                                  name: year, 
                                  data: Date::ABBR_MONTHNAMES.reject(&:nil?).map { |month| [month, totals_per_month[month]] }
                                }
                              },
              colors: [PageCollection.hex_color]
        %>
      </div>
    </div>
  </div>

  <div class="col s12 m12 l6">
    <div class="card">
      <div class="card-content">
        <div class="card-title">
          New discussion threads
          <span class="right grey-text"><%= number_with_delimiter Thredded::Topic.last.id %> total</span>
        </div>
        <%=
          area_chart @reports.pluck(:day, :thredded_threads_created)
                             .group_by { |date, total| date.year }
                             .map { |year, data|
                                totals_per_month = Hash.new(0)
                                data.each { |date, count| totals_per_month[date.strftime("%b")] += (count || 0) }

                                {
                                  name: year, 
                                  data: Date::ABBR_MONTHNAMES.reject(&:nil?).map { |month| [month, totals_per_month[month]] }
                                }
                              },
              colors: ['#2196F3']
        %>
      </div>
    </div>
  </div>
  <div class="col s12 m12 l6">
    <div class="card">
      <div class="card-content">
        <div class="card-title">
          New discussion replies
          <span class="right grey-text"><%= number_with_delimiter Thredded::Post.last.id %> total</span>
        </div>
        <%=
          area_chart @reports.pluck(:day, :thredded_replies_created)
                             .group_by { |date, total| date.year }
                             .map { |year, data|
                                totals_per_month = Hash.new(0)
                                data.each { |date, count| totals_per_month[date.strftime("%b")] += (count || 0) }

                                {
                                  name: year, 
                                  data: Date::ABBR_MONTHNAMES.reject(&:nil?).map { |month| [month, totals_per_month[month]] }
                                }
                              },
              colors: ['#2196F3']
        %>
      </div>
    </div>
  </div>

  <div class="col s12 m12 l6">
    <div class="card">
      <div class="card-content">
        <div class="card-title">
          New private discussions
          <span class="right grey-text"><%= number_with_delimiter Thredded::PrivateTopic.last.id %> total</span>
        </div>
        <%=
          area_chart @reports.pluck(:day, :thredded_private_messages_created)
                             .group_by { |date, total| date.year }
                             .map { |year, data|
                                totals_per_month = Hash.new(0)
                                data.each { |date, count| totals_per_month[date.strftime("%b")] += (count || 0) }

                                {
                                  name: year, 
                                  data: Date::ABBR_MONTHNAMES.reject(&:nil?).map { |month| [month, totals_per_month[month]] }
                                }
                              },
              colors: ['#2196F3']
        %>
      </div>
    </div>
  </div>
  <div class="col s12 m12 l6">
    <div class="card">
      <div class="card-content">
        <div class="card-title">
          New private replies
          <span class="right grey-text"><%= number_with_delimiter Thredded::PrivatePost.last.id %> total</span>
        </div>
        <%=
          area_chart @reports.pluck(:day, :thredded_private_replies_created)
                             .group_by { |date, total| date.year }
                             .map { |year, data|
                                totals_per_month = Hash.new(0)
                                data.each { |date, count| totals_per_month[date.strftime("%b")] += (count || 0) }

                                {
                                  name: year, 
                                  data: Date::ABBR_MONTHNAMES.reject(&:nil?).map { |month| [month, totals_per_month[month]] }
                                }
                              },
              colors: ['#2196F3']
        %>
      </div>
    </div>
  </div>

  <div class="col s12 m12 l4">
    <div class="card">
      <div class="card-content">
        <div class="card-title">
          New documents
          <span class="right grey-text"><%= number_with_delimiter Document.last.id %> total</span>
        </div>
        <%=
          area_chart @reports.pluck(:day, :documents_created)
                             .group_by { |date, total| date.year }
                             .map { |year, data|
                                totals_per_month = Hash.new(0)
                                data.each { |date, count| totals_per_month[date.strftime("%b")] += (count || 0) }

                                {
                                  name: year, 
                                  data: Date::ABBR_MONTHNAMES.reject(&:nil?).map { |month| [month, totals_per_month[month]] }
                                }
                              },
              colors: [Document.hex_color]
        %>
      </div>
    </div>
  </div>
  <div class="col s12 m12 l4">
    <div class="card">
      <div class="card-content">
        <div class="card-title">
          Updated documents
        </div>
        <%=
          area_chart @reports.pluck(:day, :documents_edited)
                             .group_by { |date, total| date.year }
                             .map { |year, data|
                                totals_per_month = Hash.new(0)
                                data.each { |date, count| totals_per_month[date.strftime("%b")] += (count || 0) }

                                {
                                  name: year, 
                                  data: Date::ABBR_MONTHNAMES.reject(&:nil?).map { |month| [month, totals_per_month[month]] }
                                }
                              },
              colors: [Document.hex_color]
        %>
      </div>
    </div>
  </div>
  <div class="col s12 m12 l4">
    <div class="card">
      <div class="card-content">
        <div class="card-title">
          Document revisions
          <span class="right grey-text"><%= number_with_delimiter DocumentRevision.last.id %> total</span>
        </div>
        <%=
          area_chart @reports.pluck(:day, :document_revisions_created)
                             .group_by { |date, total| date.year }
                             .map { |year, data|
                                totals_per_month = Hash.new(0)
                                data.each { |date, count| totals_per_month[date.strftime("%b")] += (count || 0) }

                                {
                                  name: year, 
                                  data: Date::ABBR_MONTHNAMES.reject(&:nil?).map { |month| [month, totals_per_month[month]] }
                                }
                              },
              colors: [Document.hex_color]
        %>
      </div>
    </div>
  </div>
  <div class="col s12 m12 l4">
    <div class="card">
      <div class="card-content">
        <div class="card-title">
          New document analyses
          <span class="right grey-text"><%= number_with_delimiter DocumentAnalysis.last.id %> total</span>
        </div>
        <%=
          area_chart @reports.pluck(:day, :document_analyses_created)
                             .group_by { |date, total| date.year }
                             .map { |year, data|
                                totals_per_month = Hash.new(0)
                                data.each { |date, count| totals_per_month[date.strftime("%b")] += (count || 0) }

                                {
                                  name: year, 
                                  data: Date::ABBR_MONTHNAMES.reject(&:nil?).map { |month| [month, totals_per_month[month]] }
                                }
                              },
              colors: [Document.hex_color]
        %>
      </div>
    </div>
  </div>
</div>