/
validations.rb
57 lines (51 loc) · 2.06 KB
/
validations.rb
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# frozen_string_literal: true
module Grape
module DSL
module Validations
extend ActiveSupport::Concern
include Grape::DSL::Configuration
module ClassMethods
# Clears all defined parameters and validations. The main purpose of it is to clean up
# settings, so next endpoint won't interfere with previous one.
#
# params do
# # params for the endpoint below this block
# end
# post '/current' do
# # whatever
# end
#
# # somewhere between them the reset_validations! method gets called
#
# params do
# # params for the endpoint below this block
# end
# post '/next' do
# # whatever
# end
def reset_validations!
unset_namespace_stackable :declared_params
unset_namespace_stackable :validations
unset_namespace_stackable :params
end
# Opens a root-level ParamsScope, defining parameter coercions and
# validations for the endpoint.
# @yield instance context of the new scope
def params(&block)
Grape::Validations::ParamsScope.new(api: self, type: Hash, &block)
end
# Declare the contract to be used for the endpoint's parameters.
# @param contract [Class<Dry::Validation::Contract> | Dry::Schema::Processor]
# The contract or schema to be used for validation. Optional.
# @yield a block yielding a new instance of Dry::Schema::Params
# subclass, allowing to define the schema inline. When the
# +contract+ parameter is a schema, it will be used as a parent. Optional.
def contract(contract = nil, &block)
raise ArgumentError, 'Either contract or block must be provided' unless contract || block
raise ArgumentError, 'Cannot inherit from contract, only schema' if block && contract.respond_to?(:schema)
Grape::Validations::ContractScope.new(self, contract, &block)
end
end
end
end
end