lib/logidze.rb in logidze-0.12.0 vs lib/logidze.rb in logidze-1.0.0.rc1

@@ -3,10 +3,11 @@
 require "logidze/version"
 
 # Logidze provides tools for adding in-table JSON-based audit to DB tables
 # and ActiveRecord extensions to work with changes history.
 module Logidze
+  require "ruby-next"
   require "logidze/history"
   require "logidze/model"
   require "logidze/versioned_association"
   require "logidze/ignore_log_data"
   require "logidze/has_logidze"
@@ -17,33 +18,45 @@
   require "logidze/engine" if defined?(Rails)
 
   class << self
     # Determines if Logidze should append a version to the log after updating an old version.
     attr_accessor :append_on_undo
-
-    attr_writer :associations_versioning
-
-    def associations_versioning
-      @associations_versioning || false
-    end
-
+    # Determines whether associations versioning is enabled or not
+    attr_accessor :associations_versioning
     # Determines if Logidze should exclude log data from SELECT statements
-    attr_writer :ignore_log_data_by_default
+    attr_accessor :ignore_log_data_by_default
+    # Whether #at should return self or nil when log_data is nil
+    attr_accessor :return_self_if_log_data_is_empty
 
-    def ignore_log_data_by_default
-      @ignore_log_data_by_default || false
-    end
-
     # Temporary disable DB triggers.
     #
     # @example
     #   Logidze.without_logging { Post.update_all(active: true) }
     def without_logging
+      with_logidze_setting("logidze.disabled", "on") { yield }
+    end
+
+    # Instructure Logidze to create a full snapshot for the new versions, not a diff
+    #
+    # @example
+    #   Logidze.with_full_snapshot { post.touch }
+    def with_full_snapshot
+      with_logidze_setting("logidze.full_snapshot", "on") { yield }
+    end
+
+    private
+
+    def with_logidze_setting(name, value)
       ActiveRecord::Base.transaction do
-        ActiveRecord::Base.connection.execute "SET LOCAL logidze.disabled TO on;"
+        ActiveRecord::Base.connection.execute "SET LOCAL #{name} TO #{value};"
         res = yield
-        ActiveRecord::Base.connection.execute "SET LOCAL logidze.disabled TO DEFAULT;"
+        ActiveRecord::Base.connection.execute "SET LOCAL #{name} TO DEFAULT;"
         res
       end
     end
   end
+
+  self.append_on_undo = false
+  self.associations_versioning = false
+  self.ignore_log_data_by_default = false
+  self.return_self_if_log_data_is_empty = true
 end