Module: WeakParameters

Defined in:
lib/weak_parameters.rb,
lib/weak_parameters/version.rb,
lib/weak_parameters/validator.rb,
lib/weak_parameters/controller.rb,
lib/weak_parameters/base_validator.rb,
lib/weak_parameters/hash_validator.rb,
lib/weak_parameters/array_validator.rb,
lib/weak_parameters/string_validator.rb,
lib/weak_parameters/validation_error.rb,
lib/weak_parameters/boolean_validator.rb,
lib/weak_parameters/integer_validator.rb

Overview

Provides ‘validates` DSL to controllers to validate params.

Examples

# POST /recipes { name: "alice" }              #=> 201
# POST /recipes { name: "alice", type: 1 }     #=> 201
# POST /recipes { name: "alice", type: "bob" } #=> 400
# POST /recipes { type: 1 }                    #=> 400
class RecipesController < ApplicationController
  rescue_from WeakParameters::ValidationError do |exception|
    render text: exception.message, status: 400
  end

  validates :create do
    string :name, required: true
    integer :type
  end

  def create
    respond_with Recipe.create(params.slice(:name, :type))
  end
end

# WeakParameters.stats has its definitions.
WeakParameters::stats[:recipes][:create].validators[0].key       #=> :name
WeakParameters::stats[:recipes][:create].validators[0].required? #=> true
WeakParameters::stats[:recipes][:create].validators[1].key       #=> :type
WeakParameters::stats[:recipes][:create].validators[1].required? #=> false

Defined Under Namespace

Modules: Controller Classes: ArrayValidator, BaseValidator, BooleanValidator, HashValidator, IntegerValidator, StringValidator, ValidationError, Validator

Constant Summary collapse

VERSION = 
"0.0.4"

Class Method Summary collapse

Class Method Details

.stats ⇒ Object 



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# File 'lib/weak_parameters.rb', line 45

def self.stats
  @stats ||= ActiveSupport::HashWithIndifferentAccess.new do |hash, key|
    hash[key] = ActiveSupport::HashWithIndifferentAccess.new
  end
end