From dc7d2a026d14e0baa7032d7d3aa46d43443969e0 Mon Sep 17 00:00:00 2001
From: Sergey Toy <toydestroyer@users.noreply.github.com>
Date: Sun, 16 Apr 2023 20:57:49 +0800
Subject: [PATCH] add writer

---
 lib/database_consistency.rb                   |  1 +
 .../writers/simple/three_state_boolean.rb     | 22 +++++++++++++++++++
 .../writers/simple_writer.rb                  |  3 ++-
 3 files changed, 25 insertions(+), 1 deletion(-)
 create mode 100644 lib/database_consistency/writers/simple/three_state_boolean.rb

diff --git a/lib/database_consistency.rb b/lib/database_consistency.rb
index a5a6aaf..4a82d8d 100644
--- a/lib/database_consistency.rb
+++ b/lib/database_consistency.rb
@@ -38,6 +38,7 @@
 require 'database_consistency/writers/simple/enum_values_inconsistent_with_ar_enum'
 require 'database_consistency/writers/simple/enum_values_inconsistent_with_inclusion'
 require 'database_consistency/writers/simple/redundant_case_insensitive_option'
+require 'database_consistency/writers/simple/three_state_boolean'
 require 'database_consistency/writers/simple_writer'
 
 require 'database_consistency/writers/autofix/helpers/migration'
diff --git a/lib/database_consistency/writers/simple/three_state_boolean.rb b/lib/database_consistency/writers/simple/three_state_boolean.rb
new file mode 100644
index 0000000..553c925
--- /dev/null
+++ b/lib/database_consistency/writers/simple/three_state_boolean.rb
@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+module DatabaseConsistency
+  module Writers
+    module Simple
+      class ThreeStateBoolean < Base # :nodoc:
+        private
+
+        def template
+          'column should be required in the database'
+        end
+
+        def unique_attributes
+          {
+            table_name: report.table_name,
+            column_name: report.column_name
+          }
+        end
+      end
+    end
+  end
+end
diff --git a/lib/database_consistency/writers/simple_writer.rb b/lib/database_consistency/writers/simple_writer.rb
index 091ef30..96dd783 100644
--- a/lib/database_consistency/writers/simple_writer.rb
+++ b/lib/database_consistency/writers/simple_writer.rb
@@ -28,7 +28,8 @@ class SimpleWriter < BaseWriter
         missing_foreign_key_cascade: Simple::MissingForeignKeyCascade,
         enum_values_inconsistent_with_ar_enum: Simple::EnumValuesInconsistentWithArEnum,
         enum_values_inconsistent_with_inclusion: Simple::EnumValuesInconsistentWithInclusion,
-        redundant_case_insensitive_option: Simple::RedundantCaseInsensitiveOption
+        redundant_case_insensitive_option: Simple::RedundantCaseInsensitiveOption,
+        three_state_boolean: Simple::ThreeStateBoolean
       }.freeze
 
       def write