fix: accept nil values when validating URLs

dwyl · Aug 21, 2023 · 68995a5 · 68995a5
1 parent 8c57df9
commit 68995a5
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Showing 2 changed files with 6 additions and 0 deletions.
diff --git a/lib/url.ex b/lib/url.ex
@@ -14,6 +14,8 @@ defmodule Fields.Url do
 
   def type, do: :string
 
+  def cast(nil), do: {:ok, nil}
+
   def cast(value) do
     value = value |> to_string() |> String.trim()
 

diff --git a/test/url_test.exs b/test/url_test.exs
@@ -9,6 +9,10 @@ defmodule Fields.UrlTest do
   end
 
   describe "cast" do
+    test "Url.cast accepts a nil" do
+      assert {:ok, nil} == Url.cast(nil)
+    end
+
     test "Url.cast accepts a string" do
       assert {:ok, "http://www.test.com"} == Url.cast("http://www.test.com")
     end