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fix graph height calculation

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byte[] 2020-01-05 13:03:43 -05:00
parent 75b15a59b7
commit af97bd1717
1 changed files with 6 additions and 5 deletions
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11
lib/philomena_web/views/stat_view.ex
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@ -5,18 +5,19 @@ defmodule PhilomenaWeb.StatView do
data = Enum.sort_by(data, & &1["key"])
n_buckets = length(data)
{%{"key" => min_time}, %{"key" => max_time}} = Enum.min_max_by(data, & &1["key"], fn -> %{"key" => 0} end)
{%{"doc_count" => min_docs}, %{"doc_count" => max_docs}} = Enum.min_max_by(data, & &1["doc_count"], fn -> %{"doc_count" => 0} end)
{
%{"doc_count" => min_docs},
%{"doc_count" => max_docs}
} = Enum.min_max_by(data, & &1["doc_count"], fn -> %{"doc_count" => 0} end)
graph_width = 950
graph_height = 475
bar_width = safe_div(graph_width, n_buckets)
max_bar_height = safe_div(graph_height, max_docs - min_docs)
content_tag :svg, class: "upload-stats", viewBox: "0 0 #{graph_width} #{graph_height}" do
for {datum, i} <- Enum.with_index(data) do
bar_height = safe_div(datum["doc_count"], max_docs) * max_bar_height
bar_height = safe_div(datum["doc_count"], max_docs) * graph_height
x = i * bar_width
y = graph_height-bar_height
@ -29,6 +30,6 @@ defmodule PhilomenaWeb.StatView do
end
end
defp safe_div(n, 0), do: 0
defp safe_div(_n, 0), do: 0
defp safe_div(n, d), do: n / d
end