This is a gem which allows you to build ActiveRecord objects from an Excel file with validations in your rails application.

rails-fields gem provides robust field type enforcement for ActiveRecord models in Ruby on Rails applications. It includes utility methods for type validation, logging, and field mappings between GraphQL and ActiveRecord types Custom error classes provide clear diagnostics for field-r...

Manages permalink columns in active record models. Strips special characters and spaces, creates before validation, assures uniqueness. That kind of thing.

Rulix lets you fold complex rulesets onto complex data structures; useful for validation, data sanitization, and mutation.

Input validation DSL and support classes for the Jet Toolkit.

We can validate CPF and CNPJ formats and verifying digits.

A clean, immutable Ruby interface for working with piece identifiers in PNN format. PNN provides a consistent and rule-agnostic notation for representing pieces in abstract strategy board games like chess, shogi, and xiangqi. Features include state modifiers for enhanced/diminished/intermediate p...

Zero-dependency Ruby utilities for: • checksum validation (modulus-11), • component decoding (category, office_code, district_code, sequence), • random valid ID generation, • human-readable category descriptions.

thai_qr_pay is a Ruby gem providing: - ASCII-numeric TLV parsing and encoding - EMVCo CRC-16/IBM-SDLC checksum computation and validation - Generators for PromptPay AnyID, PromptPay Bill Payment, TrueMoney, etc. - Validators for slip-verify and TrueMoney slip verify payloads - BOT barcode → EMVCo...

Use Ruby code to generate JSON schemas with intelligent defaults, validation, and versioning.

RSpec matches for Nobrainer models, including association and validation matchers.

Provider-agnostic guardrails (PII redaction, schema validation) and evaluation/regression harness for LLM prompts and models.

As your Rails projects evolve and grow, your model validations tend to change as well. An unfortunate side effect of this evolution is that your table- backed ActiveRecord::Base descendants end up with rows that instantiate invalid model instances. ValidData generates a report for your Rails appl...

simple-cli-options is a small Ruby library for parsing command-line flags with validation and conversion. Define options with short/long forms, then parse ARGV and read values by name. This gem is currently in BETA; APIs may change in future releases.

CsvWizard provides a simple framework to import CSV files into Rails models. It supports required fields, default values, row-level validation, and hooks for pre- and post-processing.

scjson: SCXML ↔ JSON converter, validator, and execution trace interface. Provides CLI tools for conversion, validation, and emitting deterministic traces compatible with SCION semantics.

Phone number parsing, validation and formatting.

Easy validation of deeply-nested hashes

This gem allows to generate JsonSchema thanks to a Builder class or an ActiveRecord serialization class. It can be used in Rails 4, 5 or Ruby standalone projects. The output validation is done agains json-schema.

Automatically generate Grape params or Rails strong params from Dry::Validation contracts