Module: Grafana::Validator

Included in:
Client
Defined in:
lib/grafana/validator.rb

Overview

namespace for validate options

Instance Method Summary collapse

Instance Method Details

#validate(params, options) ⇒ Mixed

validate some parameters

Examples:

default = validate( params, required: false, var: 'default', type: Boolean )
name    = validate( params, required: true, var: 'name', type: String )

Parameters:

Options Hash (options):

  • requiered (Boolean)
  • var (String)
  • type (Class)

Returns:

  • (Mixed)

Raises:

  • (ArgumentError) 


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# File 'lib/grafana/validator.rb', line 21

def validate( params, options )
  required = options.dig(:required) || false
  var      = options.dig(:var)
  type     = options.dig(:type)

  params   = params.deep_symbolize_keys
  variable = params.dig(var.to_sym)

  raise ArgumentError.new(format('\'%s\' is requiered and missing!', var)) if(variable.nil?) if(required == true )

  unless( type.nil? )
    clazz = Object.const_get(type.to_s)
    raise ArgumentError.new(format('wrong type. \'%s\' must be an %s, given \'%s\'', var, type, variable.class.to_s)) unless( variable.nil? || variable.is_a?(clazz) )
  end

  variable
end