TableBuilderHelper: Move ::Column to its own file

Now that we have other classes that belong to `TableBuilderHelper`
(`URL` and `CustomLinks`), it makes more sense for this one to live in
its own file.

Refs #3479

2 files changed, 28 insertions, 26 deletions

diff --git a/app/helpers/table_builder_helper.rb b/app/helpers/table_builder_helper.rb
index 361fe1aae..73c994100 100644
--- a/app/helpers/table_builder_helper.rb
+++ b/app/helpers/table_builder_helper.rb
@@ -1,35 +1,10 @@
+require 'table_builder_helper/column'
 require 'table_builder_helper/custom_links'
 require 'table_builder_helper/url'
 
 # TODO: Add doc comment about neeeding to make a decorator for your collections
 # TODO: Document global variables this uses
 module TableBuilderHelper
-  class Column
-    attr_reader :key, :name, :attribute, :sortable
-
-    def initialize(key: nil, name: '', attribute:, sortable: true)
-      if key.nil? && name.empty?
-        raise ColumnMustHaveKeyOrNameError
-      end
-
-      @key = key
-      @name = name
-      @attribute = attribute
-      @sortable = sortable
-    end
-
-    def value(obj)
-      if @attribute.is_a?(Proc)
-        @attribute.call(obj)
-      else
-        obj.try(@attribute)
-      end
-    end
-  end
-
-  class ColumnMustHaveKeyOrNameError < StandardError; end
-
-
   # TODO: rename this after migration from `table_builder`
   def table_builder_2(
     collection,
diff --git a/app/helpers/table_builder_helper/column.rb b/app/helpers/table_builder_helper/column.rb
new file mode 100644
index 000000000..54e63104d
--- /dev/null
+++ b/app/helpers/table_builder_helper/column.rb
@@ -0,0 +1,27 @@
+module TableBuilderHelper
+  class Column
+    attr_reader :key, :name, :attribute, :sortable
+
+    def initialize(key: nil, name: '', attribute:, sortable: true)
+      if key.nil? && name.empty?
+        raise ColumnMustHaveKeyOrNameError
+      end
+
+      @key = key
+      @name = name
+      @attribute = attribute
+      @sortable = sortable
+    end
+
+    def value(obj)
+      if @attribute.is_a?(Proc)
+        @attribute.call(obj)
+      else
+        obj.try(@attribute)
+      end
+    end
+  end
+
+
+  class ColumnMustHaveKeyOrNameError < StandardError; end
+end