Initial commit

2020-06-15 10:58:47 +08:00
commit 4f1dfe7564
8590 changed files with 1516878 additions and 0 deletions
@@ -0,0 +1,47 @@
+require_dependency 'map/copier'
+
+module CartoDB
+  module Visualization
+    class TableBlender
+      def initialize(user, tables=[])
+        @user   = user
+        @tables = tables
+      end
+
+      def blend
+        raise "Viewer users can't blend tables" if user.viewer
+
+        maps            = tables.map(&:map)
+        copier          = CartoDB::Map::Copier.new
+        destination_map = copier.new_map_from(maps.first)
+        destination_map.save
+
+        if @user.builder_enabled?
+          base_layer = Carto::LayerFactory.build_default_base_layer(@user)
+          destination_map.layers << base_layer
+          if base_layer.supports_labels_layer?
+            destination_map.layers << Carto::LayerFactory.build_default_labels_layer(base_layer)
+          end
+        else
+          copier.copy_base_layer(maps.first, destination_map)
+        end
+
+        maps.each { |map| copier.copy_data_layers(map, destination_map, user) }
+
+        destination_map.user_id = user.id
+        destination_map.save
+        destination_map
+      end
+
+      def blended_privacy
+        return Carto::Visualization::PRIVACY_PRIVATE if tables.any?(&:private?)
+        return Carto::Visualization::PRIVACY_LINK if tables.any?(&:public_with_link_only?)
+        Carto::Visualization::PRIVACY_PUBLIC
+      end
+
+      private
+
+      attr_reader :tables, :user
+    end
+  end
+end