Refs #5593 @1h;

- Register all models that implement checksums
- Add a simple rake task that updates all checksums within a given
referential

3 files changed, 68 insertions, 0 deletions

diff --git a/app/models/concerns/checksum_support.rb b/app/models/concerns/checksum_support.rb
index b700ef286..ff73c87a3 100644
--- a/app/models/concerns/checksum_support.rb
+++ b/app/models/concerns/checksum_support.rb
@@ -5,6 +5,7 @@ module ChecksumSupport
 
   included do
     before_save :set_current_checksum_source, :update_checksum
+    Referential.register_model_with_checksum self
   end
 
   def checksum_attributes
diff --git a/app/models/referential.rb b/app/models/referential.rb
index 92931564d..baaa354da 100644
--- a/app/models/referential.rb
+++ b/app/models/referential.rb
@@ -75,6 +75,46 @@ class Referential < ActiveRecord::Base
 
   alias_method_chain :save, :table_lock_timeout
 
+  if Rails.env.development?
+    def self.force_register_models_with_checksum
+      paths = Rails.application.paths['app/models'].to_a
+      Rails.application.railties.each do |tie|
+        next unless tie.respond_to? :paths
+        paths += tie.paths['app/models'].to_a
+      end
+
+      paths.each do |path|
+        next unless File.directory?(path)
+        Dir.chdir path do
+          Dir['**/*.rb'].each do |src|
+            next if src =~ /^concerns/
+            # thanks for inconsistent naming ...
+            if src == "route_control/zdl_stop_area.rb"
+              RouteControl::ZDLStopArea
+              next
+            end
+            Rails.logger.info "Loading #{src}"
+            begin
+              src[0..-4].classify.safe_constantize
+            rescue => e
+              Rails.logger.info "Failed: #{e.message}"
+              nil
+            end
+          end
+        end
+      end
+    end
+  end
+
+  def self.register_model_with_checksum klass
+    @_models_with_checksum ||= []
+    @_models_with_checksum << klass
+  end
+
+  def self.models_with_checksum
+    @_models_with_checksum || []
+  end
+
   def lines
     if metadatas.blank?
       workbench ? workbench.lines : associated_lines
diff --git a/lib/tasks/referential.rake b/lib/tasks/referential.rake
index 7bab6e040..1b46f69f0 100644
--- a/lib/tasks/referential.rake
+++ b/lib/tasks/referential.rake
@@ -67,4 +67,31 @@ namespace :referential do
       referential.update(ready: true)
     end
   end
+
+  desc 'Update all the checksums in the given referential'
+  task :update_checksums_in_referential, [:slug] => :environment do |t, args|
+    thing = %w(\\ | / —)
+    Referential.force_register_models_with_checksum if Rails.env.development?
+    referential = Referential.find_by_slug(args[:slug])
+    referential.switch do
+      Referential.models_with_checksum.each do |klass|
+        i = 0
+        j = 0
+        prev_size = 1
+        print "Updating checksums for #{klass.name}:  "
+        count = klass.count
+        klass.find_each do |o|
+          o.update_checksum!
+          if j%10 == 0
+            out = "#{"\b"*prev_size}\e[33m#{thing[i]}\e[0m (#{j}/#{count})"
+            prev_size = out.size - prev_size - 9
+            print out
+            i = (i+1) % thing.size
+          end
+          j += 1
+        end
+        print "#{"\b"*prev_size}\e[32m✓\e[0m (#{count}/#{count})\n"
+      end
+    end
+  end
 end