fix mandatory descriptions for filters, missing public option

lib/philomena/filters.ex

@@ -66,7 +66,7 @@ defmodule Philomena.Filters do
   """
   def create_filter(user, attrs \\ %{}) do
     %Filter{user_id: user.id}
-    |> Filter.changeset(attrs)
+    |> Filter.creation_changeset(attrs)
     |> Repo.insert()
   end
 
@@ -84,7 +84,7 @@ defmodule Philomena.Filters do
   """
   def update_filter(%Filter{} = filter, attrs) do
     filter
-    |> Filter.changeset(attrs)
+    |> Filter.update_changeset(attrs)
     |> Repo.update()
   end
 

lib/philomena/filters/filter.ex

@@ -11,7 +11,7 @@ defmodule Philomena.Filters.Filter do
     belongs_to :user, User
 
     field :name, :string
-    field :description, :string
+    field :description, :string, default: ""
     field :system, :boolean
     field :public, :boolean
     field :hidden_complex_str, :string
@@ -29,7 +29,7 @@ defmodule Philomena.Filters.Filter do
   @doc false
   def changeset(filter, attrs) do
     user =
-      filter
+      change(filter).data
       |> Repo.preload(:user)
       |> Map.get(:user)
 
@@ -44,7 +44,7 @@ defmodule Philomena.Filters.Filter do
     ])
     |> TagList.propagate_tag_list(:spoilered_tag_list, :spoilered_tag_ids)
     |> TagList.propagate_tag_list(:hidden_tag_list, :hidden_tag_ids)
-    |> validate_required([:name, :description])
+    |> validate_required([:name])
     |> validate_my_downvotes(:spoilered_complex_str)
     |> validate_my_downvotes(:hidden_complex_str)
     |> Search.validate_search(:spoilered_complex_str, user)
@@ -52,6 +52,16 @@ defmodule Philomena.Filters.Filter do
     |> unsafe_validate_unique([:user_id, :name], Repo)
   end
 
+  def creation_changeset(filter, attrs) do
+    filter
+    |> cast(attrs, [:public])
+    |> changeset(attrs)
+  end
+
+  def update_changeset(filter, attrs) do
+    changeset(filter, attrs)
+  end
+
   def deletion_changeset(filter) do
     filter
     |> change()

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

@@ -65,4 +65,20 @@
         strong> WARNING:
         ' This filter is applied along with your tag filters. Tag filters may hide images that you mean to filter more precisely here. Double-check to make sure they don't interfere.
 
-      = submit "Save Filter", class: "button"
+    = cond do
+      - is_nil(input_value(f, :id)) ->
+        .field
+          = checkbox f, :public, class: "checkbox"
+          = label f, :public
+
+        .fieldlabel
+          strong You probably do not want to check this unless you know what you are doing - it cannot be changed later
+          | . Pulic filters can be shared with other users and used by them; if you make changes to a filter, it will update all users of that filter.
+
+      - input_value(f, :public) == true ->
+        .fieldlabel
+          strong Changes made to this filter will affect anyone else using this filter! Check your changes, and make sure your changes don't change the filter's intent.
+
+      - true ->
+
+    = submit "Save Filter", class: "button"