Hello all!

It will require connecting the voting system. For the Market app, it looks like the following set of MySQL commands in the install/sql/install.sql file:

INSERT INTO `sys_objects_vote` (`Name`, `Module`, `TableMain`, `TableTrack`, `PostTimeout`, `MinValue`, `MaxValue`, `IsUndo`, `IsOn`, `TriggerTable`, `TriggerFieldId`, `TriggerFieldAuthor`, `TriggerFieldRate`, `TriggerFieldRateCount`, `ClassName`, `ClassFile`) VALUES 

('bx_market', 'bx_market', 'bx_market_votes', 'bx_market_votes_track', '604800', '1', '5', '0', '1', 'bx_market_products', 'id', 'author', 'rate', 'votes', 'BxMarketVoteStars', 'modules/boonex/market/classes/BxMarketVoteStars.php');

The main `bx_market_products` table has the `rate`, `votes`, and `allow_vote_to` fields to operate with that data.

The vote action will require the menu, which looks like:

INSERT INTO `sys_menu_items`(`set_name`, `module`, `name`, `title_system`, `title`, `link`, `onclick`, `target`, `icon`, `addon`, `submenu_object`, `submenu_popup`, `visible_for_levels`, `visibility_custom`, `active`, `copyable`, `order`) VALUES 

('bx_market_view_actions', 'bx_market', 'vote', '_sys_menu_item_title_system_va_vote', '', '', '', '', '', '', '', 0, 2147483647, '', 0, 0, 220);

in the install/sql/enable.sql file of the same module.

And the necessary privacy commands to work with the voting:

INSERT INTO `sys_objects_privacy` (`object`, `module`, `action`, `title`, `default_group`, `spaces`, `table`, `table_field_id`, `table_field_author`, `override_class_name`, `override_class_file`) VALUES

('bx_market_allow_vote_to', 'bx_market', 'vote', '_bx_market_form_entry_input_allow_vote_to', 'c', '', 'bx_market_products', 'id', 'author', 'BxMarketPrivacy', 'modules/boonex/market/classes/BxMarketPrivacy.php');

Finally, the block with the rating is created by this command:

INSERT INTO `sys_pages_blocks`(`object`, `cell_id`, `module`, `title_system`, `title`, `designbox_id`, `visible_for_levels`, `type`, `content`, `deletable`, `copyable`, `active`, `order`) VALUES

('bx_market_view_entry', 3, 'bx_market', '', '_bx_market_page_block_title_entry_rating', 11, 2147483647, 'service', 'a:2:{s:6:"module";s:9:"bx_market";s:6:"method";s:13:"entity_rating";}', 0, 0, 1, 4);

So the work is the standard, but not so small...