53 lines
1.3 KiB
Elixir
53 lines
1.3 KiB
Elixir
defmodule BackendWeb.SearchController do
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use BackendWeb, :controller
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alias Backend.Api
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action_fallback(BackendWeb.FallbackController)
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def index(conn, params) do
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query = Map.get(params, "query")
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from = Map.get(params, "after", "0") |> String.to_integer()
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# Filters
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filter_keys =
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params
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|> Map.keys()
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|> Enum.filter(fn key -> key !== "query" and key !== "after" end)
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filters =
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params
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|> Map.take(filter_keys)
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|> Map.to_list()
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|> Enum.map(&convert_to_es_filter(&1))
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%{hits: hits, next: next} = Api.search_instances(query, filters, from)
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render(conn, "index.json", hits: hits, next: next)
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end
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defp convert_to_es_filter(url_param) do
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{key, value} = url_param
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# Key has the form e.g. "type_eq" or "user_count_gte"
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key_components = String.split(key, "_")
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# The field to filter on
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field = Enum.take(key_components, length(key_components) - 1) |> Enum.join("_")
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# The filter relation -- one of eq, gt, gte, lt, lte
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relation = Enum.take(key_components, -1)
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case field do
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"type" ->
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%{
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"term" => %{"type" => value}
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}
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"user_count" ->
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%{
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"range" => %{
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"user_count" => %{
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relation => value
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}
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}
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}
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end
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end
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end
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