Show beacon submitter callsign, add donate link, prefer 8-char grids

- Add belongs_to :user on Beacon schema, preload in get_beacon!/1
- Show "Submitted by {callsign}" on beacon detail page
- Add NTMS donation link on the about page
- Change grid preference text to 8 characters (e.g. EM12kp37)

lib/microwaveprop/beacons.ex

@@ -47,7 +47,7 @@ defmodule Microwaveprop.Beacons do
   end
 
   @doc "Gets a single beacon. Raises if not found."
-  def get_beacon!(id), do: Repo.get!(Beacon, id)
+  def get_beacon!(id), do: Beacon |> Repo.get!(id) |> Repo.preload(:user)
 
   @doc """
   Creates a beacon. When a user is provided they are recorded as the

lib/microwaveprop/beacons/beacon.ex

@@ -152,7 +152,8 @@ defmodule Microwaveprop.Beacons.Beacon do
     field :bearing, :string, default: "omni"
     field :beamwidth_deg, :float
     field :notes, :string
-    field :user_id, :binary_id
+
+    belongs_to :user, Microwaveprop.Accounts.User
 
     timestamps(type: :utc_datetime)
   end

lib/microwaveprop/radio.ex

@@ -363,10 +363,10 @@ defmodule Microwaveprop.Radio do
   end
 
   defp find_duplicate_contact(changeset) do
-    s1 = Ecto.Changeset.get_field(changeset, :station1) |> to_string() |> String.upcase()
-    s2 = Ecto.Changeset.get_field(changeset, :station2) |> to_string() |> String.upcase()
-    g1 = Ecto.Changeset.get_field(changeset, :grid1) |> to_string() |> String.upcase()
-    g2 = Ecto.Changeset.get_field(changeset, :grid2) |> to_string() |> String.upcase()
+    s1 = changeset |> Ecto.Changeset.get_field(:station1) |> to_string() |> String.upcase()
+    s2 = changeset |> Ecto.Changeset.get_field(:station2) |> to_string() |> String.upcase()
+    g1 = changeset |> Ecto.Changeset.get_field(:grid1) |> to_string() |> String.upcase()
+    g2 = changeset |> Ecto.Changeset.get_field(:grid2) |> to_string() |> String.upcase()
     band = Ecto.Changeset.get_field(changeset, :band)
     ts = Ecto.Changeset.get_field(changeset, :qso_timestamp)
 

lib/microwaveprop/radio/adif_import.ex

@@ -86,7 +86,7 @@ defmodule Microwaveprop.Radio.AdifImport do
       # Value starts right after the closing >
       # Find the > after the tag
       tag_text = String.slice(record_string, tag_start, 999)
-      value_offset = tag_start + byte_size(String.split(tag_text, ">", parts: 2) |> List.first()) + 1
+      value_offset = tag_start + (tag_text |> String.split(">", parts: 2) |> List.first() |> byte_size()) + 1
       value = String.slice(record_string, value_offset, size)
 
       Map.put(acc, name, value)
@@ -229,7 +229,14 @@ defmodule Microwaveprop.Radio.AdifImport do
   defp dedupe(rows, db_map) do
     {accepted, _in_batch, duplicates} =
       Enum.reduce(rows, {[], %{}, []}, fn row, {accepted, in_batch, dups} ->
-        key = dedup_key(row.attrs["station1"], row.attrs["grid1"], row.attrs["station2"], row.attrs["grid2"], row.attrs["band"])
+        key =
+          dedup_key(
+            row.attrs["station1"],
+            row.attrs["grid1"],
+            row.attrs["station2"],
+            row.attrs["grid2"],
+            row.attrs["band"]
+          )
 
         cond do
           conflict_in_map?(db_map, key, row.timestamp) ->

lib/microwaveprop_web/live/about_live.ex

@@ -170,6 +170,15 @@ defmodule MicrowavepropWeb.AboutLive do
             </li>
           </ul>
         </div>
+        <div class="rounded-box border border-primary/30 bg-primary/10 p-3 text-center">
+          <p>
+            If this tool is useful to you, consider
+            <a href="https://ntms.org" target="_blank" class="link link-primary font-semibold">
+              donating to NTMS
+            </a>
+            to help keep the project running.
+          </p>
+        </div>
       </section>
     </Layouts.app>
     """

lib/microwaveprop_web/live/beacon_live/show.ex

@@ -131,6 +131,11 @@ defmodule MicrowavepropWeb.BeaconLive.Show do
           </div>
           <div class="whitespace-pre-wrap text-sm">{@beacon.notes}</div>
         </div>
+
+        <div :if={@beacon.user && @beacon.user.callsign} class="mt-3 pt-3 border-t border-base-300">
+          <span class="text-xs opacity-60">Submitted by</span>
+          <span class="text-sm font-semibold">{@beacon.user.callsign}</span>
+        </div>
       </div>
     </Layouts.app>
     """

lib/microwaveprop_web/live/submit_live.ex

@@ -5,8 +5,8 @@ defmodule MicrowavepropWeb.SubmitLive do
 
   alias Microwaveprop.Propagation.BandConfig
   alias Microwaveprop.Radio
-  alias Microwaveprop.Radio.Contact
   alias Microwaveprop.Radio.AdifImport
+  alias Microwaveprop.Radio.Contact
   alias Microwaveprop.Radio.CsvImport
   alias Microwaveprop.Workers.ContactWeatherEnqueueWorker
 
@@ -355,7 +355,7 @@ defmodule MicrowavepropWeb.SubmitLive do
       </div>
 
       <p class="text-sm text-base-content/60 -mt-2">
-        Be as specific as possible with grid squares (6 characters preferred, e.g. EM12kp).
+        Be as specific as possible with grid squares (8 characters preferred, e.g. EM12kp37).
       </p>
 
       <div class="grid grid-cols-1 md:grid-cols-3 gap-4">
@@ -375,7 +375,13 @@ defmodule MicrowavepropWeb.SubmitLive do
           options={@mode_options}
           required
         />
-        <.input field={@form[:qso_timestamp]} type="datetime-local" label="Timestamp (UTC)" lang="en-GB" required />
+        <.input
+          field={@form[:qso_timestamp]}
+          type="datetime-local"
+          label="Timestamp (UTC)"
+          lang="en-GB"
+          required
+        />
       </div>
 
       <%= if @current_user do %>
@@ -416,7 +422,7 @@ defmodule MicrowavepropWeb.SubmitLive do
             Timestamps in most formats accepted (e.g. <code>2024-06-15T14:30:00Z</code>, <code>6/15/2024 2:30 PM</code>, <code>2024-06-15 14:30</code>). All times assumed UTC.
           </li>
           <li>
-            Grid squares should be as detailed as possible (6 characters preferred, e.g. EM12kp)
+            Grid squares should be as detailed as possible (8 characters preferred, e.g. EM12kp37)
           </li>
           <li>Band in MHz (e.g. 10000, 24000)</li>
         </ul>
@@ -502,9 +508,10 @@ defmodule MicrowavepropWeb.SubmitLive do
         </p>
         <ul class="list-disc list-inside mt-2 space-y-1 text-base-content/60">
           <li>
-            Required fields: <code>CALL</code>, <code>STATION_CALLSIGN</code> (or <code>OPERATOR</code>),
-            <code>GRIDSQUARE</code>, <code>MY_GRIDSQUARE</code>, <code>QSO_DATE</code>, <code>TIME_ON</code>,
-            and <code>FREQ</code> or <code>BAND</code>
+            Required fields: <code>CALL</code>, <code>STATION_CALLSIGN</code>
+            (or <code>OPERATOR</code>), <code>GRIDSQUARE</code>, <code>MY_GRIDSQUARE</code>, <code>QSO_DATE</code>, <code>TIME_ON</code>,
+            and <code>FREQ</code>
+            or <code>BAND</code>
           </li>
           <li>Only microwave contacts (902 MHz and up) will be imported</li>
           <li>Sub-microwave contacts are silently skipped</li>
@@ -512,7 +519,12 @@ defmodule MicrowavepropWeb.SubmitLive do
         </ul>
       </div>
 
-      <form id="adif-upload-form" phx-submit="upload_adif" phx-change="validate_adif" class="space-y-4">
+      <form
+        id="adif-upload-form"
+        phx-submit="upload_adif"
+        phx-change="validate_adif"
+        class="space-y-4"
+      >
         <div class="fieldset mb-2">
           <label>
             <span class="label mb-1">ADIF File</span>

test/microwaveprop/radio/adif_import_test.exs

@@ -75,7 +75,9 @@ defmodule Microwaveprop.Radio.AdifImportTest do
 
         assert {:ok, preview} = AdifImport.preview(adif, @submitter)
         assert [row] = preview.valid
-        assert row.attrs["band"] == expected_band, "FREQ #{freq} should map to band #{expected_band}, got #{row.attrs["band"]}"
+
+        assert row.attrs["band"] == expected_band,
+               "FREQ #{freq} should map to band #{expected_band}, got #{row.attrs["band"]}"
       end
     end