MikeHolford questions

• No Ransack::Search object was provided to search_form_for
• group_by multiple times in ruby
• og:image meta tag in ruby on rails
• Clean approach to devise notice/alerts in materialize toast
• ambiguous column name: error not working with tags
• Replace submit button with glyphicon in rails
• can't write unknown attribute `scrapbook_entry_id'
• Counting the number of elements in array

MikeHolford answers