I quote the manual about ALTER TABLE: A USING clause must be provided if there is no implicit or assignment cast from old to new type. What you need is: ALTER TABLE listings ALTER longitude TYPE integer USING longitude::int; ALTER TABLE listings ALTER latitude TYPE integer USING latitude::int; Or shorter and faster (for big tables) … Read more
If you want to continue using order by random() then just declare it safe by wrapping it in Arel.sql like the deprecation warning suggests: Model.order(Arel.sql(‘random()’)).first # PostgreSQL Model.order(Arel.sql(‘rand()’)).first # MySQL There are lots of ways of selecting a random row and they all have advantages and disadvantages but there are times when you absolutely must … Read more
In Rails 3.1+: Rails.application.routes This will give you all the controllers, actions and their routes if you have their paths in your routes.rb file. For example: routes= Rails.application.routes.routes.map do |route| {alias: route.name, path: route.path, controller: route.defaults[:controller], action: route.defaults[:action]} end Update: For Rails 3.2, Journal engine path changed, so the code becomes: routes= Rails.application.routes.routes.map do |route| … Read more
“Peer authentication” means that it’s using a unix socket and expecting the connecting unix user to have the same unix username as the postgresql username. Since your local unix username is funkdified and you’re trying to connect as user goodsounds over a unix domain socket (local) connection where your pg_hba.conf specifies peer authentication, Pg correctly … Read more
I got this error (much the same): /usr/local/bin/brew: /usr/local/Library/brew.rb: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby: bad interpreter: No such file or directory /usr/local/bin/brew: line 26: /usr/local/Library/brew.rb: Undefined error: 0 and fixed by the solution below: Open brew.rb: $ sudo vim /usr/local/Library/brew.rb Change the first line’s 1.8 to Current: Before: #!/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby -W0 After: #!/System/Library/Frameworks/Ruby.framework/Versions/Current/usr/bin/ruby -W0 Then brew works for me. Hope … Read more
You can make a validation conditional by passing either a simple string of Ruby to be executed, a Proc, or a method name as a symbol as a value to either :if or :unless in the options for your validation. Here are some examples: Prior to Rails version 5.2 you could pass a string: # … Read more
The message you’re getting is a clear indication that you lack something for the correct installation of that gem: Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options. There is no Windows native version of latest release … Read more
You can’t use nginx for this currently[it’s not true anymore], but I would suggest looking at HAProxy. I have used it for exactly this purpose. The trick is to set long timeouts so that the socket connections are not closed. Something like: timeout client 86400000 # In the frontend timeout server 86400000 # In the … Read more
My other answer was mostly wrong – new answer. in your params hash, :filename is not associated with another hash, it is associated with an ActiveDispatch::Http::UploadedFile object. Your last code line: def screenshot_params params.require(:screenshot).permit(:title, assets_attributes: :filename) is actually correct, however, the filename attribute is not being allowed since it is not one of the permitted … Read more
.js.erb files are for controller actions, such as create, when you want javascript to be executed when the action completes. For example, when you want to submit a form via ajax and want display an alert when everything is done, you would put the $(‘#business_submit’).click(…) in your application.js or *.html.erb, and your create.js.erb could look … Read more