I had a similar experience. Here’s how I solved it Display a list of all your local gems for the bundler gem N/B: The command above is for rbenv version manager, the one for rvm might be different This will display the versions of the bundler gem installed locally Note: Your versions might differ from … Read more
In your posts controller, you need to define @posts, which, based on the error you haven’t. As @posts is not defined calling each on it will generate undefined methodeach’ for nil:NilClass`.
The problem is still your pg_hba.conf file*. This line: Should be: * The location of this file isn’t very consistent. The command locate pg_hba.conf should help; here’s some examples: /etc/postgresql/*/main/pg_hba.conf and /var/lib/pgsql/data/pg_hba.conf. After altering this file, don’t forget to restart your PostgreSQL server. If you’re on Linux, that would be sudo service postgresql restart. These are brief descriptions of both options according to … Read more
Cross site request forgery (CSRF/XSRF) is when a malicious web page tricks users into performing a request that is not intended for example by using bookmarklets, iframes or just by creating a page which is visually similar enough to fool users. The Rails CSRF protection is made for “classical” web apps – it simply gives a degree … Read more
Functions that end with ? in Ruby are functions that only return a boolean, that is, true, or false. When you write a function that can only return true or false, you should end the function name with a question mark. The example you gave shows a ternary statement, which is a one-line if-statement. .nil? is a boolean … Read more
Note: While this answer has the desired effect, it does so by reducing overall security. The below answer by Alon is more correct and maintains the security of the site.
Sudo is a Unix specific command designed to allow a user to carry out administrative tasks with the appropriate permissions. Windows does not have (need?) this. Run the command with the sudo removed from the start.
My solution breaks down in 3 parts: the state of the user is stored in a service, in the run method you watch when the route changes and you check if the user is allowed to access the requested page, in your main controller you watch if the state of the user change. You should … Read more
Below is an error, caused by a form in my Rails application: This happens for every non-get request and, as you see, authenticity_token is there.
You just need to change directories to your app, THEN run bundle install 🙂