Add Support for Arrays to CustomFields

spec/components/concern/has_custom_fields_spec.rb

@@ -35,6 +35,7 @@ describe Concern::HasCustomFields do
 
       test_item.custom_fields["bob"] = "marley"
       test_item.custom_fields["jack"] = "black"
+
       test_item.save
 
       test_item = TestItem.find(test_item.id)
@@ -51,6 +52,21 @@ describe Concern::HasCustomFields do
       test_item.custom_fields.should == {"jack" => "jill"}
     end
 
+    it "casts integers to string without error" do
+      test_item = TestItem.new
+      test_item.custom_fields["a"].should == nil
+      test_item.custom_fields["a"] = 0
+
+      test_item.custom_fields["a"].should == 0
+      test_item.save
+
+      # should be casted right after saving
+      test_item.custom_fields["a"].should == "0"
+
+      test_item = TestItem.find(test_item.id)
+      test_item.custom_fields["a"].should == "0"
+    end
+
     it "double save actually saves" do
 
       test_item = TestItem.new
@@ -66,6 +82,33 @@ describe Concern::HasCustomFields do
     end
 
 
+    it "handles arrays properly" do
+
+      test_item = TestItem.new
+      test_item.custom_fields = {"a" => ["b", "c", "d"]}
+      test_item.save
+
+      db_item = TestItem.find(test_item.id)
+      db_item.custom_fields.should == {"a" => ["b", "c", "d"]}
+
+      db_item.custom_fields["a"] = ["c", "d"]
+      db_item.save
+      db_item.custom_fields.should == {"a" => ["c", "d"]}
+
+    end
+
+    it "casts integers in arrays properly without error" do
+
+      test_item = TestItem.new
+      test_item.custom_fields = {"a" => ["b", 10, "d"]}
+      test_item.save
+      test_item.custom_fields.should == {"a" => ["b", "10", "d"]}
+
+      db_item = TestItem.find(test_item.id)
+      db_item.custom_fields.should == {"a" => ["b", "10", "d"]}
+
+    end
+
     it "simple modifications don't interfere" do
       test_item = TestItem.new