Recent questions tagged Ruby-on-rails

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How do you add Ruby code inside Rails views and have its result outputted in the HTML file?

asked Sep 3, 2022 in Ruby by DavidAnderson (7.4k points)

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A way that views can share reusable code, such as formatting a date, is called a _?

asked Sep 3, 2022 in Ruby by DavidAnderson (7.4k points)

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What is a standard prerequisite for implementing Single Table Inheritance (STI)?

asked Sep 3, 2022 in Ruby by DavidAnderson (7.4k points)

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Where would this code most likely be found in a Rails project? scope :active, lambda { where(:active => true) }

asked Sep 3, 2022 in Ruby by DavidAnderson (7.4k points)

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Given this code, and assuming @user is an instance of User that has an assigned location, which choice would be used to return the user's city?

asked Sep 3, 2022 in Ruby by DavidAnderson (7.4k points)

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When rendering a partial in a view, how would you pass local variables for rendering?

asked Sep 3, 2022 in Ruby by DavidAnderson (7.4k points)

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What decides which controller receives which requests?

asked Sep 3, 2022 in Ruby by DavidAnderson (7.4k points)

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Which code would you add to return a 404 to the API caller if the user is not found in the database?

asked Sep 3, 2022 in Ruby by DavidAnderson (7.4k points)

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After this migration has been executed, which statement would be true?

asked Sep 3, 2022 in Ruby by DavidAnderson (7.4k points)

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Within a Rails model with a cache_key method, which code snippet will expire the cache whenever the model is updated?

asked Sep 3, 2022 in Ruby by DavidAnderson (7.4k points)

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Which code sample will skip running the login_required "before" filter on the get_posts controller action?

asked Sep 3, 2022 in Ruby by DavidAnderson (7.4k points)

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Which choice is an incorrect way to render a partial?

asked Sep 3, 2022 in Ruby by DavidAnderson (7.4k points)

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Given two models, what is the issue with the query used to fetch them?

asked Sep 3, 2022 in Ruby by DavidAnderson (7.4k points)

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Given this Category model with an attribute for "name", what code would fill in the blank so that it sets saved_name to a string that is the category name that existed before the name was changed?

asked Sep 3, 2022 in Ruby by DavidAnderson (7.4k points)

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Given a table of blog_posts and a related table of comments (comments made on each blog post), which ActiveRecord query will retrieve all blog posts with comments created during @range?

asked Sep 3, 2022 in Ruby by DavidAnderson (7.4k points)

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Which choice is not a valid Rails route?

asked Sep 3, 2022 in Ruby by DavidAnderson (7.4k points)

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If User is an ActiveRecord class, which choice would be expected to return an array?

asked Sep 3, 2022 in Ruby by DavidAnderson (7.4k points)

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Which part of the Rails framework is primarily responsible for making decisions about how to respond to a browser request?

asked Sep 3, 2022 in Ruby by DavidAnderson (7.4k points)

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If the only route defined is resources :products, what is an example of a URL that could be generated by this link_to method? link_to('Link', {controller: 'products', action: 'index', page: 3})

asked Sep 3, 2022 in Ruby by DavidAnderson (7.4k points)

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How would you validate that a project's name is not blank, is fewer than 50 characters, and is unique?

asked Sep 2, 2022 in Ruby by DavidAnderson (7.4k points)

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