Color App - Part 3 - Rails Console & Input Validation
In this lesson we will learn how to use rails console which is an interactive way to engage with our postgresql database from the command line. simply run the following from the command line to open up the rails console:
$ rails console
Next, we will explore input validation. We will modify color.rb which is our model to achieve input validation within our rails application.
In this video lesson we will learn how to use rails console. Rails console gives us an interactive way to engage with our postgresql database from the command line. Simply run the following from the command line to open up the rails console:
$ rails console
Next, we will explore input validation. We will modify color.rb which is our model to achieve input validation within our rails application.
/app/models/color.rb
validates :name, presence: true, uniqueness: true, length: { in: 2..14 }
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