I’ve been meaning to get back into blogging here, and I think I have been blocked by the fact that many of the posts in my mental backlog are somewhat large in scope. \u00a0So here’s a useful bit of ActiveRecord trivia that I just learned.<\/p>\n
When no records are found, the “find” method (ie Person.find(‘badinput’)) throws ActiveRecord::RecordNotFound<\/strong>.<\/p>\n However, any find_by_* method, such as Person.find_by_netid(‘badinput’), will return\u00a0nil<\/em><\/strong>.<\/p>\n This was rather confusing as I focused on the error handling semantics of the Banner API. \u00a0I want that exception<\/strong>. \u00a0Good news, though:<\/p>\n find_by_netid!(‘badinput’) throws the exception. \u00a0The bang<\/strong> changes the behavior, as it often does, though not always in the way you may expect<\/a>.<\/p>\n TLDR:<\/p>\n So that’s it. \u00a0Maybe this will get me back in the habit. \u00a0Happy coding!<\/p>\n","protected":false},"excerpt":{"rendered":" I’ve been meaning to get back into blogging here, and I think I have been blocked by the fact that many of the posts in my mental backlog are somewhat large in scope. \u00a0So here’s a useful bit of ActiveRecord … Continue reading 2.0.0-p353 :001 > Person.find('badinput')\r\nActiveRecord::RecordNotFound: Couldn't find Person with ndid=badinput <snip>\r\n\r\n2.0.0-p353 :002 > Person.find_by_netid('badinput')\r\n => nil \r\n\r\n2.0.0-p353 :003 > Person.find_by_netid!('badinput')\r\nActiveRecord::RecordNotFound: Couldn't find Person with netid = badinput <snip>\r\n\r\n<\/pre>\n