83 lines
2.2 KiB
Elixir
83 lines
2.2 KiB
Elixir
defmodule BackendWeb.GraphView do
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use BackendWeb, :view
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alias BackendWeb.GraphView
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def render("index.json", %{nodes: nodes, edges: edges}) do
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statuses_per_day =
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nodes
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|> Enum.map(fn %{statuses_per_day: statuses_per_day} -> statuses_per_day end)
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|> Enum.filter(fn s -> s != nil end)
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statuses_per_user_per_day =
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nodes
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|> Enum.filter(fn %{statuses_per_day: statuses_per_day, user_count: user_count} ->
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statuses_per_day != nil and user_count != nil and user_count > 0
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end)
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|> Enum.map(fn %{statuses_per_day: statuses_per_day, user_count: user_count} ->
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statuses_per_day / user_count
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end)
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%{
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graph: %{
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nodes: render_many(nodes, GraphView, "node.json", as: :node),
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edges: render_many(edges, GraphView, "edge.json", as: :edge)
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},
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metadata: %{
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ranges: %{
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# Make sure that these keys match what's in the "node.json" render function.
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statusesPerDay: [
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Enum.min(statuses_per_day, fn -> nil end),
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Enum.max(statuses_per_day, fn -> nil end)
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],
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statusesPerUserPerDay: [
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Enum.min(statuses_per_user_per_day, fn -> nil end),
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Enum.max(statuses_per_user_per_day, fn -> nil end)
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]
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}
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}
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}
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end
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def render("node.json", %{node: node}) do
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size =
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case node.user_count > 1 do
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true -> :math.log(node.user_count)
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false -> 1
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end
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statuses_per_user_per_day =
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if node.statuses_per_day != nil and node.user_count != nil and node.user_count > 0 do
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node.statuses_per_day / node.user_count
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else
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nil
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end
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# This is the format that cytoscape.js expects.
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%{
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data: %{
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id: node.domain,
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label: node.domain,
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size: size,
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type: node.type,
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statusesPerDay: node.statuses_per_day,
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statusesPerUserPerDay: statuses_per_user_per_day
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},
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position: %{
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x: node.x,
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y: node.y
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}
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}
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end
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def render("edge.json", %{edge: edge}) do
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%{
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data: %{
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id: edge.id,
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source: edge.source_domain,
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target: edge.target_domain,
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weight: edge.weight
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}
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}
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end
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end
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