The first one should never be used in production code, since it’s transporting information irrelevant to end-users (a user can’t do anything about “Cannot connect to database”). You throw Exceptions if you know that at a certain critical code point, your application can fail and you want your code to recover across multiple call-levels. trigger_error() … Read more
Your problem statement seems a little vague, so I’ll solve a simplified version of the problem. Keep in mind that a macro is a code-translation mechanism. That is, it translates the code that you wish you could write into something that is acceptable by the compiler. In this way, it is best to think of … Read more
There is no try catch statement in Rust. The closest approach is the ? operator. However, you do not have to create a function and a match statement to resolve it in the end. You can define a closure in your scope and use ? operator inside the closure. Then throws are held in the … Read more
Our exception_handler gem can be used for Ruby on Rails custom error pages. How It Works All Ruby on Rails exceptions are handled with config.exceptions_app. This is assigned in the config/application.rb or config/environments/*.rb files – it needs to be a callback: config.exceptions_app sets the exceptions application invoked by the ShowException middleware when an exception happens. … Read more
I had this problem too. I fixed it by adding the email address for my service account to the Google Analytics profile I wanted it to access. I got the email address (something like [email protected]) for the service account by looking under the “API Access” tab in the Google APIs console. Then, I followed Google’s … Read more
Let’s look at your error message: error[E0599]: no method named `read_to_string` found for type `std::result::Result<std::fs::File, std::io::Error>` in the current scope –> src/main.rs:11:14 | 11 | file.read_to_string(&mut s); | ^^^^^^^^^^^^^^ method not found in `std::result::Result<std::fs::File, std::io::Error>` The error message is pretty much what it says on the tin – the type Result does not have the … Read more
You implement Error exactly like you would any other trait; there’s nothing extremely special about it: pub trait Error: Debug + Display { fn description(&self) -> &str { /* … */ } fn cause(&self) -> Option<&Error> { /* … */ } fn source(&self) -> Option<&(Error + ‘static)> { /* … */ } } description, cause, … Read more
PHP stores error logs in /var/log/apache2 if PHP is an apache2 module. Shared hosts are often storing log files in your root directory /log subfolder. But…if you have access to a php.ini file you can do this: error_log = /var/log/php-scripts.log According to rinogo‘s comment: If you’re using cPanel, the master log file you’re probably looking … Read more