tainted_params

https://github.com/Ragmaanir/tainted_params

Behaves like strong_parameters, with some minor differences.

• Validate required and optional parameters
• Validate their types
• Type coercions for parameters

• get rid of activesupport dependency

builder = TaintedParams::ParamsValidatorBuilder.new do
  required :id, :Integer
  optional :options, :Hash do
    optional :name, :String
    optional :active, :Boolean
  end
end

validator = builder.result

result = validator.validate(options: { name: 'bob', active: 1, admin: true })

# These evaluate to true:
result.valid        == { options: { name: 'bob' } }
result.invalid      == { options: { active: 1 } }
result.unpermitted  == { options: { admin: true } }
result.missing      == { id: nil }

• Ruby >= 2
• activesupport

• gem install tainted_params

After checking out the source, run:

$ rake newb

This task will install any missing dependencies, run the tests/specs, and generate the RDoc.

The ParamsValidatorBuilder constructs a ParamsValidator out of ParamConstraints. The ParamsValidator contains the validation logic to split a params-hash into valid, invalid, missing and unpermitted parts.

(The MIT License)

Copyright (c) 2015 Ragmaanir

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.