Fix #4599: Editing saved search fails when user has maximum saved searches.

app/models/saved_search.rb

@@ -8,7 +8,7 @@ class SavedSearch < ApplicationRecord
   before_validation :normalize_query
   before_validation :normalize_labels
   validates :query, presence: true
-  validate :validate_count
+  validate :validate_count, on: :create
 
   scope :labeled, ->(label) { where_array_includes_any_lower(:labels, [normalize_label(label)]) }
   scope :has_tag, ->(name) { where_regex(:query, "(^| )[~-]?#{Regexp.escape(name)}( |$)", flags: "i") }
@@ -173,7 +173,7 @@ class SavedSearch < ApplicationRecord
   end
 
   def validate_count
-    if user.saved_searches.count + 1 > user.max_saved_searches
+    if user.saved_searches.count >= user.max_saved_searches
       self.errors[:user] << "can only have up to #{user.max_saved_searches} " + "saved search".pluralize(user.max_saved_searches)
     end
   end

test/unit/saved_search_test.rb

@@ -161,14 +161,23 @@ class SavedSearchTest < ActiveSupport::TestCase
 
   context "A user with max saved searches" do
     setup do
-      @user = FactoryBot.create(:gold_user)
-      CurrentUser.user = @user
-      User.any_instance.stubs(:max_saved_searches).returns(0)
-      @saved_search = @user.saved_searches.create(:query => "xxx")
+      @user = create(:gold_user)
+      User.any_instance.stubs(:max_saved_searches).returns(1)
+      @ss1 = create(:saved_search, user: @user)
     end
 
     should "not be able to create another saved search" do
-      assert_equal(["You can only have up to 0 saved searches"], @saved_search.errors.full_messages)
+      @ss2 = build(:saved_search, user: @user)
+
+      assert_equal(false, @ss2.valid?)
+      assert_equal(["You can only have up to 1 saved search"], @ss2.errors.full_messages)
+    end
+
+    should "be able to edit existing saved searches" do
+      @ss1.update!(query: "blah")
+
+      assert_equal(true, @ss1.valid?)
+      assert_equal("blah", @ss1.query)
     end
   end
 end