At Codemancers, we believe every day is an opportunity to grow. This section is where our team shares bite-sized discoveries, technical breakthroughs and fascinating nuggets of wisdom we've stumbled upon in our work.
rails routes command generates a comprehensive list of all routes defined in our Rails application, displaying the HTTP method, URL pattern, controller, and action associated with each route.
flog . Flog finds the most tortured code in your codebase.gem install flogflog app libinstance variables are variables that belong to a specific instance of a class. They are prefixed with the @ symbol and are accessible within the instance methods of that class. Instance variables allow objects to maintain state and store information unique to each instance.class Person
def initialize(name, age)
@name = name
@age = age
end
def say_intro
puts "Hello, my name is #{@name} and I am #{@age} years old"
end
end
# Create a new instance of Person
person1 = Person.new("John", 18)
# Call the say_intro method
person1.say_intro@name is an instance variable of the Person class, representing the name of each Person object created. The initialize method is a constructor that sets the value of @name when a new Person object is created. The say_intro method uses the instance variable @name to give the intro of the person with their name and age when called.docker stats command is a powerful tool provided by Docker to monitor the resource usage of running containers. It provides a real-time stream of various metrics such as CPU usage, memory usage, network I/O, block I/O, and the number of processes (PIDs) running inside each container. This command is particularly useful for performance analysis and ensuring that containers are running within their resource limits.docker stats db370fc6b784
CONTAINER ID NAME CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O PIDS
db370fc6b784 minikube 43.70% 1.243GiB / 2.148GiB 57.87% 35.4MB / 414MB
SELECT column_name, column_default
FROM information_schema.columns
WHERE table_name = '<table_name_placeholder>' AND column_name = '<column_name_placeholder>';is_nullable as following:SELECT column_name, is_nullable
FROM information_schema.columns
WHERE table_name = '<table_name_placeholder>' AND column_name = '<column_name_placeholder>';active_record_doctor performs variety of health checks to identify and rectify common database issues like missing foreign key constraints, missing NON NULL constraints, missing presence validations, incorrect presence validations on boolean columns and many more. Ref: https://github.com/gregnavis/active_record_doctorsentry with gitlab ip whitelisting needs to be done on gitlab server (self-hosted)kubectl cordon NODE_NAME command is used in Kubernetes to mark a node as unschedulable, meaning no new pods will be scheduled onto that node. Existing pods on the node will continue to run unless explicitly terminated or moved.helm upgrade unleash-app-toggle . --debug--debug can provide more insight if the error persists, showing exactly what values are being passed to each template.Showing 25 to 27 of 83 results
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