The recommended additional setup of the spreewald gem, a useful set of cucumber steps, includes adding a file for defining...
...set :bundle_without, %w{development test cucumber deploy}.join(' ') Be aware, that gems that belong to two groups, are only excluded, when both of the groups are excluded, e.g. to...
Ubuntu 24 added some guarding for Python packages which no longer allows installing applications through pip on system level. Instead...
Since Rails 7 you are able to encrypt database information with Active Record. Using Active Record Encryption will store an...
...multiple subsequent occurrences of a given character with a single one Use Tap For Better Test Data Setup let(:order) do create(:order, name: "My Order").tap do |order|
...rough setting (e.g. open Photos with Shotwell Viewer). If a certain file type (or better mime type) should be opened with a different application, this can be set via command...
...will happen and will have effect. But what we can observe is that the behaviour of the callback function :my_method does not happen in the test, as if the...
For searching in large database tables we usually use PostgreSQL's fulltext search capabilities. While this works reasonably well for...
If you're using a Redis cache in Rails (e.g. :redis_cache_store), it's possible to configure additional parameters...
...until we know for sure which image version we will need and the solution becomes very simple. Here is a small helper function for your mailer views: def inline!(version...
Newer versions of Bundler (at least since 2.3) have two different behaviors: If your Gemfile.lock reads PLATFORMS: ruby, it might either install a compatible platform-specific version...
...or similar), bundler will install exactly the versions indiciated in the Gemfile.lock. Fix For better consistency, I would advise to make sure you always have PLATFORMS x86_64-linux
tl;dr Individual transform properties are great because they allow you to write more readable and maintainable CSS, especially when...
Redis.current will be removed without replacement in redis-rb 5.0. Version 4.6.0 adds deprecation warnings for Redis.current and Redis.current=: `Redis.current...
Here is how to use Chromedriver without libraries like selenium-webdriver. This can be useful for debugging. The following example...
...make block elements take up much more space than desired, even stretching their container beyond the screen edge on small screens. min-width is defined to win against competing width...
Look-arounds provide a way to match context-dependant. You can look-behind, look-ahead and to both in a positive and negative way. The look-around will...
...Modifiers in Ruby Add modifiers after the final slash, e.g. /Regex/im, or at the beginning of the regex, e.g. /(?i)regex/. i: case insensitivity m: make the .-character also match...
...way to calculate the signature is to use an HMAC. Unfortunately, I don't believe you can calculate a proper HMAC in a regular Apache installation. Instead, we do something...
Important You should only implement an implicit conversion method if your object already behaves like the target type. You never create a new object in an implicit conversion method...
...either return self or not be implemented at all. Obviously, this is the reason behind this recent card about Ruby implicitly converting a hash to keyword arguments. It's not...
...Although this may be useful for debugging, when writing custom steps you may be better off using XPath...
Webpacker uses Babel and Webpack to transpile modern JavaScript down to EcmaScript 5. Depending on what browser a project needs...
2013-02-20 (Tobias) ... with exactly the following rows 2012-06-20 (Henning) Better normalization (more consistent for expected/real input, gets rid of nbsps) 2012-06-01 (Tobias)
...wildcard support (partial matches) 2012-05-25 (Tobias) Better error output; "should not see" now fails if any of the rows is present; cells are now matched exactly, wildcard for...
Looking at the source code of the validates_numericality_of validator, it becomes clear that it converts the attribute in question to either an integer or float: if configuration[:only...
...ActiveRecord::Errors.default_error_messages[:not_a_number]) next end raw_value = raw_value.to_i else begin raw_value = Kernel.Float(raw_value.to_s) rescue ArgumentError, TypeError record.errors.add(attr_name, configuration[:message] || ActiveRecord::Errors.default...
To do so, call clear_active_connections! before your thread terminates: Thread.new do begin User.first # first database access makes a new connection ensure ActiveRecord::Base.clear_active_connections! end
ActiveModel supplies an errors object that behaves similar to a Hash. It can be used to add errors to a record, as well as to query the record for registered...