DEV: add data migration to split out log fields

db/migrate/20210806135416_split_custom_wizard_log_fields.rb

@@ -0,0 +1,70 @@
+class SplitCustomWizardLogFields < ActiveRecord::Migration[6.1]
+  def change
+    reversible do |dir|
+      dir.up do
+          # separate wizard/action/user into their own keys
+
+          wizard_logs = PluginStoreRow.where("
+            plugin_name = 'custom_wizard_log' 
+          ")
+
+          if wizard_logs.exists?
+            wizard_logs.each do |row|
+              begin
+                log_json = JSON.parse(row.value)
+              rescue TypeError, JSON::ParserError
+                next
+              end
+
+              # first three keys are wizard/action/user
+
+              if log_json.key?('message')
+                attr_strs = log_json['message'].split('; ', 4)
+
+                log_json['message'] = attr_strs.pop
+
+                attr_strs.each do |attr_str|
+                  key, value = attr_str.split(': ')
+                  log_json[key] = value
+                end
+
+                row.value = log_json.to_json
+                row.save
+
+              end
+            end
+          end
+      end
+      dir.down do
+        wizard_logs = PluginStoreRow.where("
+          plugin_name = 'custom_wizard_log' 
+        ")
+
+        if wizard_logs.exists?
+          wizard_logs.each do |row|
+            begin
+              log_json = JSON.parse(row.value)
+            rescue TypeError, JSON::ParserError
+              next
+            end
+
+            # concatenate wizard/action/user to start of message
+            prefixes = log_json.extract!('wizard', 'action', 'user')
+
+            message_prefix = prefixes.map{|k,v| "#{k}: #{v}"}.join('; ')
+
+            if log_json.key?('message')
+              log_json['message'] = "#{message_prefix}; #{log_json['message']}"
+            else
+              log_json['message'] = message_prefix
+            end
+
+            row.value = log_json.to_json
+            row.save
+
+          end
+        end
+      end
+    end
+  end
+end