Linuxteaching
- How do I run a rake command?
- What are rake commands?
- What is a rake database?
- What does rake db setup do?
- How do you set a rake environment?
- How do you debug a rake?
- What are rakes?
- Where do I put Rake tasks?
- How do I run a rake task with arguments?
- What does DB drop do?
- What is rake in ship?
- What is DB setup?
- How do I reset a Rails database?
- What is DB migration rails?
How do I run a rake command?
To run a rake task, just call the rake command with the name of your task. Don't forget to include your namespaces when you have them.
What are rake commands?
Rake Options & Commands
rake -T (list available tasks) rake -P (list tasks & their dependencies) rake -W (list tasks & where they are defined) rake -V (verbose mode, echo system commands) ... rake -f (use a specific Rakefile)
What is a rake database?
Rake is a utility built into Ruby and Rails, which provides an efficient way for managing database changes. You can easily migrate database changes to servers by only using a command line! You might be asking yourself during your application development: What happens when using rake database commands?
What does rake db setup do?
rake db:migrate makes changes to the existing schema. Its like creating versions of schema. db:migrate will look in db/migrate/ for any ruby files and execute the migrations that aren't run yet starting with the oldest.
How do you set a rake environment?
Run Rake tasks
- To run a default task, run the rake utility without any parameters: rake .
- To run a task with environment variables, specify the values of the variables in the form [variable=value] before the task name: rake RAILS_ENV=production SECRET_KEY_BASE=my-secret-key about .
How do you debug a rake?
Using the Ruby approach to debug a Rake project
- Install the tool.
- Add a breakpoint.
- Run a rake task. The code will be paused on the breakpoint.
- Investigate the environment. Note. debugger and pry are third-party tools. You can find more information about them...
What are rakes?
A rake (Old English raca, cognate with Dutch raak, German Rechen, from the root meaning "to scrape together", "heap up") is a broom for outside use; a horticultural implement consisting of a toothed bar fixed transversely to a handle, or tines fixed to a handle, and used to collect leaves, hay, grass, etc., and in ...
Where do I put Rake tasks?
rake extension and are placed in Rails. root/lib/tasks . You can create these custom rake tasks with the bin/rails generate task command. If your need to interact with your application models, perform database queries and so on, your task should depend on the environment task, which will load your application code.
How do I run a rake task with arguments?
To pass arguments, do three things:
- Add the argument names after the task name, separated by commas.
- Put the dependencies at the end using :needs => [...]
- Place |t, args| after the do. (t is the object for this task)
What does DB drop do?
Dropping a database deletes the database from an instance of SQL Server and deletes the physical disk files used by the database. If the database or any one of its files is offline when it is dropped, the disk files are not deleted. These files can be deleted manually by using Windows Explorer.
What is rake in ship?
The rake of a ship's prow is the angle at which the prow rises from the water (the rake below water being called the bow rake).
What is DB setup?
The db:setup command runs a few processes: Deletes all of the data, in development this means that it will delete old data that may be missing values if you created records and then added new columns.
How do I reset a Rails database?
Short answer: use rake db:reset . This drops the database, then loads the schema with rake db:schema:load and then seeds the data with rake db:seed . This is what you should be using for the vast majority of cases.
What is DB migration rails?
Rails Migration allows you to use Ruby to define changes to your database schema, making it possible to use a version control system to keep things synchronized with the actual code. ... Production servers − Run "rake migrate" when you roll out a new release to bring the database up to date as well.
