ruby-on-rails Archives

Programming, ruby-on-rails

IT Nursery

Is there documentation for the Rails column types?

I’m looking for more than the simple type listing that is found on this page: :primary_key, :string, :text, :integer, :float, :decimal, :datetime, :timestamp, ...

June 4, 2022
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Programming, ruby-on-rails

IT Nursery

In Ruby on Rails, how do I format a date with the “th” suffix, as in, “Sun Oct 5th”?

I want to display dates in the format: short day of week, short month, day of month without leading zero but including “th”, ...

June 3, 2022
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Programming, ruby-on-rails

IT Nursery

Rails: Using greater than/less than with a where statement

I’m trying to find all Users with an id greater than 200, but I’m having some trouble with the specific syntax. User.where(:id > ...

June 3, 2022
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Programming, ruby-on-rails

IT Nursery

Ruby on Rails and Rake problems: uninitialized constant Rake::DSL

I’m having a really frustrating issue: Rake is being dumb. Here’s how the problem comes about: $ rails new test_app $ rails generate ...

June 3, 2022
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Programming, ruby-on-rails

IT Nursery

Converting string from snake_case to CamelCase in Ruby

I am trying to convert a name from snake case to camel case. Are there any built-in methods? Eg: "app_user" to "AppUser" (I ...

June 3, 2022
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Programming, ruby-on-rails

IT Nursery

Rails migrations: Undo default setting for a column

I have the problem, that I have an migration in Rails that sets up a default setting for a column, like this example: ...

June 3, 2022
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Programming, ruby-on-rails

IT Nursery

Add timestamps to an existing table

I need to add timestamps (created_at & updated_at) to an existing table. I tried the following code but it didn’t work. class AddTimestampsToUser ...

June 3, 2022
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Programming, ruby-on-rails

IT Nursery

Error installing libv8: ERROR: Failed to build gem native extension

I made a rails project with, rails new test_bootstrap. succeeded. moved to the project dir and added the gems gem "therubyracer" gem "less-rails" ...

June 2, 2022
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Programming, ruby-on-rails

IT Nursery

Combine two ActiveRecord::Relation objects

Suppose I have the following two objects: first_name_relation = User.where(:first_name => 'Tobias') # ActiveRecord::Relation last_name_relation = User.where(:last_name => 'Fünke') # ActiveRecord::Relation is it ...

June 2, 2022
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Programming, ruby-on-rails

IT Nursery

Check if a table exists in Rails

I have a rake task that won’t work unless a table exists. I’m working with more than 20 engineers on a website so ...

June 2, 2022
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