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Implements a fully-featured action requests table in a single LiveView module using Flop, Ecto, and SQLite. Includes: - Fuzzy search, status/assignment filters, column sorting, 15-per-page pagination - Real-time updates, bookmarkable URLs via `handle_params/3` - JS-disabled fallback with GET forms (no duplicate logic) - 1,000,000 seeded records, Tailwind + DaisyUI styling, light/dark themes - Comprehensive README with comparisons to Django+React/Rails+React stacks - 31 tests covering all scenarios Tech: Phoenix 1.8+, LiveView, Flop, Ecto, SQLite, Elixir 1.15+
80 lines
2.5 KiB
Elixir
80 lines
2.5 KiB
Elixir
defmodule ActionRequestsDemo.ActionRequests do
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import Ecto.Query
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alias ActionRequestsDemo.{Repo, ActionRequests.ActionRequest}
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def list_action_requests(params, current_user_id \\ nil) do
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# Extract custom filters
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patient_name = get_in(params, ["patient_name"]) |> clean_param()
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status = get_in(params, ["status"]) |> clean_param()
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assignment = get_in(params, ["assignment"]) |> clean_param()
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# Build base query with custom filters
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query =
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ActionRequest
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|> apply_patient_name_filter(patient_name)
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|> apply_status_filter(status)
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|> apply_assignment_filter(assignment, current_user_id)
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# Use Flop for sorting and pagination only
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flop_params = Map.drop(params, ["patient_name", "status", "assignment"])
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# Set default sort if not specified
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flop_params =
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if is_nil(flop_params["order_by"]) || flop_params["order_by"] == "" do
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flop_params
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|> Map.put("order_by", ["inserted_at"])
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|> Map.put("order_directions", ["desc"])
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else
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# Convert order_by and order_directions to arrays if they're strings
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flop_params
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|> maybe_listify("order_by")
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|> maybe_listify("order_directions")
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end
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Flop.validate_and_run(query, flop_params, for: ActionRequest, repo: Repo)
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end
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defp maybe_listify(params, key) do
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case params[key] do
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nil -> params
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"" -> Map.delete(params, key)
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val when is_binary(val) -> Map.put(params, key, [val])
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val when is_atom(val) -> Map.put(params, key, [val])
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val when is_list(val) -> params
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_ -> params
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end
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end
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defp clean_param(nil), do: nil
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defp clean_param(""), do: nil
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defp clean_param("all"), do: nil
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defp clean_param(val), do: val
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defp apply_patient_name_filter(query, nil), do: query
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defp apply_patient_name_filter(query, name) do
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pattern = "%#{name}%"
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where(query, [a], like(a.patient_name, ^pattern))
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end
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defp apply_status_filter(query, nil), do: query
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defp apply_status_filter(query, status) do
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where(query, [a], a.status == ^status)
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end
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defp apply_assignment_filter(query, nil, _), do: query
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defp apply_assignment_filter(query, "mine", current_user_id) do
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where(query, [a], a.assigned_user_id == ^current_user_id)
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end
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defp apply_assignment_filter(query, "assigned", _) do
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where(query, [a], not is_nil(a.assigned_user_id))
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end
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defp apply_assignment_filter(query, "unassigned", _) do
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where(query, [a], is_nil(a.assigned_user_id))
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end
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end
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