Dave questions

• How can I stop a fields_for nested form duplicating with records added?
• Using checkboxes to filter records
• How can I sort my records by average rating?
• Filter results on index page from dropdown
• SyntaxError on the welcome to rails screen using Pow
• How can I allow a user to only visit their own show page using cancan?
• Creating a Rails dropdown for related database
• How to combine queries with a single external variable using Pandas

Dave answers