various filters fixes

lib/philomena/filters.ex

@@ -101,7 +101,9 @@ defmodule Philomena.Filters do
 
   """
   def delete_filter(%Filter{} = filter) do
-    Repo.delete(filter)
+    filter
+    |> Filter.deletion_changeset()
+    |> Repo.delete()
   end
 
   @doc """
@@ -132,6 +134,9 @@ defmodule Philomena.Filters do
 
     union(recent_filters, ^user_filters)
     |> Repo.all()
+    |> Enum.sort_by(fn f ->
+      Enum.find_index(user.recent_filter_ids, fn id -> f.id == id end)
+    end)
     |> Enum.group_by(
       fn
         %{recent: "t"}  -> "Recent Filters"

lib/philomena/filters/filter.ex

@@ -45,6 +45,12 @@ defmodule Philomena.Filters.Filter do
     |> unsafe_validate_unique([:user_id, :name], Repo)
   end
 
+  def deletion_changeset(filter) do
+    filter
+    |> change()
+    |> foreign_key_constraint(:id, name: :fk_rails_d2b4c2768f)
+  end
+
   def hidden_tags_changeset(filter, hidden_tag_ids) do
     change(filter, hidden_tag_ids: hidden_tag_ids)
   end

lib/philomena/users/ability.ex

@@ -196,13 +196,14 @@ defimpl Canada.Can, for: [Atom, Philomena.Users.User] do
   def can?(%User{id: id}, :show, %Conversation{to_id: id}), do: true
   def can?(%User{id: id}, :show, %Conversation{from_id: id}), do: true
 
-  # View filters they own and system filters
+  # View filters they own and public/system filters
   def can?(_user, :show, %Filter{system: true}), do: true
+  def can?(_user, :show, %Filter{public: true}), do: true
   def can?(%User{}, action, Filter) when action in [:index, :new, :create], do: true
   def can?(%User{id: id}, action, %Filter{user_id: id}) when action in [:show, :edit, :update], do: true
 
   # Edit filters they own
-  def can?(%User{id: id}, action, %Filter{user_id: id}) when action in [:edit, :update], do: true
+  def can?(%User{id: id}, action, %Filter{user_id: id}) when action in [:edit, :update, :delete], do: true
 
   # View user links they've created
   def can?(%User{id: id}, :create_links, %User{id: id}), do: true

lib/philomena_web/controllers/comment_controller.ex

@@ -35,8 +35,7 @@ defmodule PhilomenaWeb.CommentController do
       )
 
     rendered =
-      comments.entries
-      |> Renderer.render_collection(conn)
+      Renderer.render_collection(comments.entries, conn)
 
     comments =
       %{comments | entries: Enum.zip(rendered, comments.entries)}

lib/philomena_web/controllers/filter_controller.ex

@@ -94,10 +94,16 @@ defmodule PhilomenaWeb.FilterController do
   def delete(conn, _params) do
     filter = conn.assigns.filter
 
-    {:ok, _filter} = Filters.delete_filter(filter)
+    case Filters.delete_filter(filter) do
+      {:ok, _filter} ->
+        conn
+        |> put_flash(:info, "Filter deleted successfully.")
+        |> redirect(to: Routes.filter_path(conn, :index))
 
-    conn
-    |> put_flash(:info, "Filter deleted successfully.")
-    |> redirect(to: Routes.filter_path(conn, :index))
+      _error ->
+        conn
+        |> put_flash(:error, "Filter is still in use, not deleted.")
+        |> redirect(to: Routes.filter_path(conn, :show, filter))
+    end
   end
 end

lib/philomena_web/templates/filter/_filter.html.slime

@@ -6,7 +6,10 @@
     p
       ' Maintained by
       = render PhilomenaWeb.UserAttributionView, "_user.html", object: @filter, conn: @conn
-      ' .
+
+  = if @filter.system do
+    p
+      ' Maintained by staff
 
   .filter-options
     ul
@@ -17,7 +20,11 @@
         = length(@filter.hidden_tag_ids)
 
       li
-        = link("View this filter", to: Routes.filter_path(@conn, :show, @filter), class: "button")
+        = link "View this filter", to: Routes.filter_path(@conn, :show, @filter), class: "button"
+
+      = if can?(@conn, :edit, @filter) do
+        li
+          = link "Edit this filter", to: Routes.filter_path(@conn, :edit, @filter), class: "button"
 
       = if @filter.id == @conn.assigns.current_filter.id do
         li

lib/philomena_web/templates/filter/show.html.slime

@@ -22,10 +22,10 @@ h1
 
       = if can?(@conn, :edit, @filter) do
         li
-          = link("Edit this filter", to: Routes.filter_path(@conn, :edit, @filter))
+          = link "Edit this filter", to: Routes.filter_path(@conn, :edit, @filter), class: "button"
 
       = if can?(@conn, :delete, @filter) do
-        = button_to "Destroy this filter", Routes.filter_path(@conn, :delete, @filter), method: "delete", class: "button", data: [confirm: "Are you sure?"]
+        = button_to "Destroy this filter", Routes.filter_path(@conn, :delete, @filter), method: "delete", class: "button", data: [confirm: "Are you really, really sure?"]
 
   = if @filter.user do
     p.filter-maintainer

lib/philomena_web/templates/pow/session/new.html.slime

@@ -8,7 +8,7 @@ h1 Sign in
   p = link "Forgot your password?", to: Routes.pow_reset_password_reset_password_path(@conn, :new)
 
   .field
-    = text_input f, :email, class: "input", required: true, placeholder: "Email"
+    = text_input f, :email, class: "input", required: true, placeholder: "Email", autofocus: true
     = error_tag f, :email
 
   .field
@@ -25,4 +25,4 @@ p
   strong
     ' Haven't read the
     a<> href="/pages/rules" site rules
-    ' lately? Make sure you read them before posting or editing metadata!
+    ' lately? Make sure you read them before posting or editing metadata!