#rails Development Tutorials & Tips | Roast Dev

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The "No BS" Guide to Rails 8 + HTMX + SQLite3

This guide is for developers who want to build something quickly without wading through paragraphs of theory or watching lengthy tutorial videos. What We're Building A simple app that: Uses Ra...

31.03.2025 0 Read More

Benchmark It: Optimization Decisions Based on Real Data and Not Vibes

The performance of our code is something that we should all care about deeply as developers. We should always be striving to make our code run as quickly and as efficiently as we can, within reason. B...

31.03.2025 0 Read More

Helper 2

⛶Title is equivalent to <%= label_tag :title_box, "Title" %>...

31.03.2025 0 Read More

find_by() & find()

find_by() returns a single instance, not an array.Movie.find_by(id:3).title will return the title of the movie with id 3. if the id doesnt exist, it returns "nil".find() also returns a single instance...

01.04.2025 0 Read More

Elevando a validação em Rails com dry-validation: Uma abordagem elegante para regras de negócio complexas

Nota importante: Este post foca especificamente na implementação e nos benefícios da gem dry-validation para validações complexas. Os controllers e serviços mostrados são intencionalmente simp...

01.04.2025 0 Read More

Comprehensive Overview of HTTP Caching

Leapcell: The Best of Serverless Web Hosting Detailed Explanation of the HTTP Caching Mechanism In network application development, improving the access speed and efficiency of websites is of ...

02.04.2025 0 Read More

Create an Email Drip Campaign Using Rails Vault

This article is part of Build a SaaS with Rails and was previously published on Rails DesignerI recently published the Rails Vault gem. The most obvious (and common) use case is to store settings and ...

02.04.2025 0 Read More

Week 1

Things that would be nice to remember:Change all instance ctrl + F2Route Helper Methods: At the bash prompt, run "rails routes" or navigate to "/rails/info/routes" in live appmethods "live" in control...

02.04.2025 0 Read More

belongs_to default

In standard Rails applications, the default is opposite: belongs_to adds an automatic validation to foreign key columns enforcing the presence of a valid value unless you explicitly add the option opt...

02.04.2025 0 Read More

Active MCP: Integrating Model Context Protocol with Rails

Introduction Since the beginning of 2025, Model Context Protocol (MCP) has been getting attention as an implementation method for LLM-based solutions. MCP is a protocol that standardizes the ...

03.04.2025 0 Read More

The "No BS" Guide to Rails 8 + HTMX + SQLite3

Benchmark It: Optimization Decisions Based on Real Data and Not Vibes

Helper 2

find_by() & find()

Elevando a validação em Rails com dry-validation: Uma abordagem elegante para regras de negócio complexas

Comprehensive Overview of HTTP Caching

Create an Email Drip Campaign Using Rails Vault

Week 1

belongs_to default

Active MCP: Integrating Model Context Protocol with Rails

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