Rails
Rails 8 Allows drop_table To Accept An Array Of Table Names. ↗Rails 8 allows dropping multiple tables in one call with drop_table by accepting an array of table names in a single migration.
Writing
- RailsRails 8 Adds Ability To Use Multiple Rate Limits Per Controller. ↗
Rails 8 introduces the ability to define multiple rate limits within a controller, offering better flexibility for traffic management.
- RailsRails 7.2 Added Support For Explain Method To ActiveRecord::Relation. ↗
With Rails 7.2, the object returned by explain now responds to pluck, first, last, average, count, maximum, minimum, and sum methods.
- RailsRails 7.1 Introduces By Argument For increment_counter And decrement_counter Methods. ↗
With Rails 7.1, we can specify the amount to increment or decrement the value by simply passing the desired number as the `by` argument to increment_counter and decrement_counter.
- RailsRails 7.1 Adds Rails.application.deprecators Method ↗
Rails.application.deprecators returns a collection of managed deprecators within our application, and allows us to add and retrieve individual deprecators with ease.
- RailsRails 7.1 Allows Validators To Accept Lambdas Without Record Argument ↗
With Rails 7.1, we can use lambdas without record argument with ActiveModel validators.
- RailsRails 7.2 Prevents Job Scheduling Within Transactions. ↗
In Rails 7.2, ActiveJob delays job enqueuing until the transaction is committed and drops the job if the transaction is rolled back.
- RailsRails 7.1 Adds --parent Option To The Controller Generator. ↗
With Rails 7.1, the controller generator now accepts the --parent option. This allows us to generate a controller that inherits from the specified parent class.
- RailsRails 7.1 Added Support For Array#intersect? To ActiveRecord::Relation. ↗
Rails 7.1 added Array#intersect? method which returns true if two ActiveRecord relation objects have at least one element in common, otherwise returns false.
- RailsRails 7.1 Raises Error When Generating Model Attributes With Reserved Names. ↗
Rails 7.1 raises error when we generate model with reserved attribute names.
- RailsRails 7.1 Adds --unused Option To Detect Dormant Routes. ↗
With Rails 7.1, identify and manage unused routes declared in the application by using bin/rails routes --unused option.
- RailsUnderstanding `inverse_of` In Rails Associations. ↗
Explore the inverse_of option in Rails associations, highlighting its benefits in performance, data consistency, and optimizing bi-directional relationships.
- RailsRails 7.1 Adds exclude? And extract_value methods To ActionController::Parameters ↗
Rails 7.1 adds exclude?, returning true if a key is missing from parameters. And extract_value, which splits a parameter value by delimiter into an array.
- RailsRails 7.1 Supports Descending Order For in_batches Without Block ↗
With Rails 7.1, in_batches method without a block works fine for both `ASC/DESC` order values.
- RailsRails 7.1 Adds after_discard Method To ActiveJob For Discarded Jobs. ↗
Rails 7.1 introduces the after_discard method, allowing us to run a callback when a job is about to be discarded.
- RailsRails 7.1 Allows Subscribing To ActiveRecord Transaction Events For Instrumentation. ↗
With Rails 7.1, we can subscribe to ActiveRecord transaction events for instrumentation with the help of transaction.active_record.
- RailsRails 7.1 Adds Adapter Option To Disallow Foreign Keys. ↗
With Rails 7.1, we can disable foreign key constraints for the entire application by adding foreign_keys false option to database.yml
- RailsRails 7.1 Raises Error On Assignment To Readonly Attributes. ↗
Rails 7.1 now raises an ActiveRecord::ReadonlyAttributeError on assignment to readonly attributes.
- RailsRails 7.1 Supports Multiple Preview Paths For Mailers. ↗
Rails 7.1 adds support for multiple mailer preview paths, enhancing flexibility and organization by allowing previews across various directories.
- RailsRails 7.1 Adds Support For Logging Background Job Enqueue Callers. ↗
Rails 7.1 ActiveJob logs background job enqueue callers with backtraces, showing the file and line number where jobs are triggered.
- RailsRails Adds The Ability To Ignore Counter Cache Columns While They Are Backfilling ↗
With Rails 7.2, we can now ignore counter cache columns during backfilling, allowing faster execution by reducing N+1 queries from counter cache column updates.
- RailsRails 7.1 Adds Support For Composite Key Multi-Column Ordering In ActiveRecord::Batches ↗
With Rails 7.1, `ActiveRecord::Batches` now supports multi-column ordering for models with composite primary keys, enabling separate ascending or descending order for each key.
- RailsRails 7.1 Adds *_deliver Callbacks To ActionMailer ↗
With Rails 7.1, we can hook into the lifecycle of email delivery with the help of ActionMailer before_deliver, around_deliver and after_deliver callbacks.
- RailsRails Warns On Tests Without Assertions. ↗
With Rails 7.2, `ActiveSupport::TestCase` now warns when tests do not run any assertions.
- RailsRails 7.2 Adds Support For Devcontainer. ↗
In Rails 7.2, use `--devcontainer` flag with `rails new` to add a devcontainer to new apps and run `bin/rails devcontainer` for existing apps.
- ReactFrontendFunctional Programming In React ↗
Learn about functional programming and how React implements it using immutable data, pure functions, and composition, along with the benefits of functional programming.
- FrontendCSSCSS units rem, em, px, vh, vw, percentage ↗
Learn differtent types of css units and their usage based on usecases.
- ReactFrontendUnderstanding Controlled And Uncontrolled Components In React ↗
Learn about controlled and uncontrolled components, the differences between them and and which one to use.
- RailsRails Adds SKIP_TEST_DATABASE_TRUNCATE Flag To Speed Up Multi Process Test Runs ↗
Speed up multi-process test runs on large DBs with ENV["SKIP_TEST_DATABASE_TRUNCATE"] flag by skipping the table truncations and running test within default transaction.
- RailsPuma-dev And Using It With Rails Applications. ↗
Explore what Puma-dev is, why it is beneficial, how to install and use it, and how to configure it within bin/setup.
- RailsRails Add ActiveRecord.after_all_transactions_commit Callback ↗
ActiveRecord.after_all_transactions_commit ensures specified actions execute only after all database transactions commit, ensuring reliable post-transaction operations.
- RailsRails Adds ActiveRecord::Base.with_connection To Optimize Database Operations. ↗
Efficiently manages database connections by promptly returning them to the pool after use, enabling immediate reuse rather than holding onto connections until the end of the request cycle.
- RubyRuby 3.4 Throws SyntaxError As Keyword Arguments Are No Longer Allowed In Index. ↗
Passing keyword arguments in index to an array set methods throws SyntaxError.
- RailsActiveRecord::Relation#order Adds Support For Hash Values In Rails 7.2. ↗
With Rails 7.2, ActiveRecord::Relation#order supports hash values where keys are table name, value is a hash of key (column name) and value (order direction).
- RailsPostgreSQL Adapter Now Decodes Columns Of Type Date To Date Instead Of String In Rails 7.2. ↗
Rails 7.2 added a Date decoder to the postgres adapter to type cast dates at the connection level to type cast columns of type date to Ruby Date instead of String.
- RubyRuby 3.4 Throws SyntaxError While Passing Block As Argument In Index. ↗
Passing a block as an argument in index to an array throws SyntaxError in Ruby 3.4 as it is no longer allowed.
- RailsStrict Loading Using :n_plus_one_only Mode Does Not Eagerly Load Child Associations In Rails 7.2. ↗
In Rails 7.2, with strict loading in :n_plus_one_only mode, associations are eagerly loaded and child associations are lazy loaded.
- RubyRuby 3.4, Range#size Now Raises TypeError If The Range Is Not Iterable ↗
Range#size raises TypeError if the begin value of Range is a Float or Rational or Beginless.
- RubyRuby 3.4, No More TypeError With **nil As It Is Treated As An Empty Hash. ↗
When double splat ** operator used with nil, it is treated similarly to **{}, which passes no keywords and does not call any conversion methods.
- RailsEnhancing Data Integrity With validate_foreign_key In Rails ↗
validate_foreign_key validates foreign key constraint and is designed to reduce the impact of adding foreign keys on high-traffic tables in PostgreSQL.
- RailsRails Adds GitHub CI Workflow By Default To New Applications ↗
All new applications using Rails 7.2 will have GitHub CI workflow by default.
- RailsactiverecordRails 7.1 Allows ActiveRecord::Relation#explain To Accept Options ↗
Adding analyze and verbose as ActiveRecord::Relation#explain options give us deeper insight into query performance.
- RailsactiverecordRails 7.1 Introduces ActiveRecord regroup Method ↗
With regroup and regroup! methods we can override the group_values
- RailsactiverecordRails 7.1 allows resetting singular associations ↗
Query database again to retrieve the associated record by resetting the cache on singular associations.
- RailsactiverecordRails 7.1 Introduces Option To Disable All Methods That ActiveRecord.enum Generates ↗
Disable auto generated methods of ActiveRecord.enum with instance_methods by passing false to it.
- RailsactionpackRails 7.1 Adds path_params Option For url_for Helper Method ↗
path_params allows specified params to be used exclusively for named segments under scoped routing without unnecessarily appending parameters to every URL.
- RubyRuby 3.3 Implements Range#reverse_each Method For Very Large or Beginless Ranges And Error Handling For Endless Ranges ↗
Range#reverse_each can now process beginless ranges with an Integer endpoint and raises TypeError for endless ranges.
- DatabasesFlyAutomate Fly Postgres Database Backup & Store To S3 bucket With GitHub Actions ↗
Discover how GitHub Actions empowers automation to effortlessly backup Fly.io hosted postgres databases, saving backups to a designated S3 bucket.
- RailsactiverecordRails 7.1 Allows ActiveRecord reselect Query Method To Accept Hash ↗
Use of hash syntax for specifying columns and aliases with the ActiveRecord::QueryMethods#reselect method makes it easier for querying.
- RubyRuby 3.3 Introduces Range#overlap? method ↗
Compare two ranges and see if they overlap each other. overlap? returns true if two ranges overlap each other, otherwise false.
- RailsDockerRails 7.1 Introduces Default Dockerfiles ↗
Dockerfiles facilitate the deployment of Rails applications in production environments using Docker.
- RailsactivejobRails 7.1 Adds ActiveJob#perform_all_later To Enqueue Multiple Jobs At Once ↗
perform_all_later allows us to enqueue multiple jobs that belong to different classes simultaneously within ActiveJob.
- RailsactiverecordRails 7.1 Expands ActiveRecord API with Async Query Support ↗
With the Active Record API for general async queries we can efficiently query not so fast queries asynchronously to improve the performance.
- RailsactiverecordRails 7.1 Introduces ActiveRecord::Base::generates_token_for ↗
Generate tokens for specific purposes and verify their authenticity.
- RailsactiverecordRails 7.1 Introduces ActiveRecord::Base::Normalization ↗
Normalization allows us to define custom normalization rules for attributes in our model. This feature is particularly helpful for ensuring that specific attributes are consistently formatted or transformed before they are saved to the database.
- RailsRails 7.1 Introduces Autoload Lib and Ignore Sub-Directories with config.autoload_lib(ignore:) Method ↗
Autoloading lib directory isn't always straightforward. In this blog post, we'll delve into the autoloading of the lib directory using config.autoload_lib(ignore:).
- RailsactivesupportSet And Restore Public Attributes Around a Block Using Object#with ↗
We can use Object#with method as shorthand for the common begin/ensure pattern to save the value of an attribute, setting a new value, and then restoring the previous value.
- ReactFrontendReduxReact state management - useReducer vs Redux ↗
This blog explores useReducer vs Redux, delving into their definitions, use cases, code samples and when to choose each for efficient state management.
- RailsactivesupportOpen Ranges Are Now Supported By The Object#in? Method In Rails ↗
We can use Object#in? method to check open date ranges i.e. beginless and endless ranges.
- RailsCDNCloudfrontCloud ServicesReduce load times of Rails applications using CloudFront CDN ↗
Delivering static assets and JavaScript files with CDN can significantly improve the performance of our Rails application, resulting in faster load times and a better user experience.
- ReactWhen to extract code to React custom hooks? ↗
React custom hooks help us to build reusable logic, and make the code more readable. In this blog, we will talk about when and when not to use react custom hooks.
- RailsactiverecordschemaRails adds the ability to ignore tables in SQL schema dumps via regular expressions ↗
Ignore tables by configuring regular expressions on ActiveRecord::SchemaDumper.
- RailsRails now supports routes prefixed with word cable ↗
Rails improved its support for routes which helps us to navigate to routes prefixed with word cable which were throwing 404 errors before.