Marek Lipka questions

Marek Lipka answers

• Ruby keyword arguments
• Rails find_by and model foreign key
• Ruby On Rails each method
• Rails - Replace Text with Image in link_to 'Delete'
• Change String "@patient" to variable
• Ruby on Rails: Count records returned by find_by* methods
• How to correctly make rails override foreign_key naming in belongs_to association?
• How can I write method with question mark using define_method
• rails format instead of id in url
• Handling Nil In Ruby