add backlinks

lib/memex_web/live/context_live/show.ex

@@ -1,6 +1,6 @@
 defmodule MemexWeb.ContextLive.Show do
   use MemexWeb, :live_view
-  alias Memex.Contexts
+  alias Memex.{Contexts, Pipelines}
 
   @impl true
   def mount(_params, _session, socket) do
@@ -23,7 +23,9 @@ defmodule MemexWeb.ContextLive.Show do
       socket
       |> assign(
         context: context,
-        page_title: page_title(live_action, context)
+        page_title: page_title(live_action, context),
+        context_backlinks: Contexts.backlink("[#{context.slug}]", current_user),
+        pipeline_backlinks: Pipelines.backlink("[[#{context.slug}]]", current_user)
       )
 
     {:noreply, socket}

lib/memex_web/live/context_live/show.html.heex

@@ -11,6 +11,27 @@
 
   <.context_content context={@context} />
 
+  <div
+    :if={@context_backlinks ++ @pipeline_backlinks != []}
+    class="flex flex-wrap justify-end items-center self-end"
+  >
+    <p><%= gettext("Backlinked by:") %></p>
+    <.link
+      :for={backlink <- @context_backlinks}
+      class="m-1 hover:underline"
+      patch={~p"/context/#{backlink}"}
+    >
+      <%= gettext("[%{slug}]", slug: backlink.slug) %>
+    </.link>
+    <.link
+      :for={backlink <- @pipeline_backlinks}
+      class="m-1 hover:underline"
+      patch={~p"/pipeline/#{backlink}"}
+    >
+      <%= gettext("[[%{slug}]]", slug: backlink.slug) %>
+    </.link>
+  </div>
+
   <p class="self-end">
     <%= gettext("Visibility: %{visibility}", visibility: @context.visibility) %>
   </p>