Class: Dry::Validation::Schema

Inherits:
Object
  • Object
show all
Extended by:
Configurable, TypeSpecs
Includes:
StructClassBuilder
Defined in:
lib/dry/validation/schema.rb,
lib/dry/validation/schema/dsl.rb,
lib/dry/validation/schema/key.rb,
lib/dry/validation/schema/rule.rb,
lib/dry/validation/schema/check.rb,
lib/dry/validation/schema/value.rb,
lib/dry/validation/extensions/struct.rb,
lib/dry/validation/schema/deprecated.rb,
lib/dry/validation/schema/class_interface.rb

Direct Known Subclasses

Form, JSON

Defined Under Namespace

Modules: StructClassBuilder, StructNode Classes: Check, DSL, Form, JSON, Key, Rule, Value

Constant Summary collapse

NOOP_INPUT_PROCESSOR = 
-> input { input }

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from TypeSpecs

build_array_type, build_hash_type, build_sum_type, build_type_map, extended, lookup_type, resolve_spec

Methods included from StructClassBuilder

#create_class

Constructor Details

#initialize(rules, options) ⇒ Schema

Returns a new instance of Schema.



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# File 'lib/dry/validation/schema.rb', line 43

def initialize(rules, options)
  @type_map = self.class.type_map
  @config = self.class.config
  @predicates = options.fetch(:predicate_registry).bind(self)
  @rule_compiler = SchemaCompiler.new(predicates, options)
  @message_compiler = options.fetch(:message_compiler)
  @input_processor = options[:input_processor]

  @input_rule = rule_compiler.visit(config.input_rule.(predicates)) if config.input_rule

  initialize_options(options)
  initialize_rules(rules)
  initialize_checks(options.fetch(:checks, []))

  @executor = Executor.new do |steps|
    steps << ProcessInput.new(input_processor) if input_processor
    steps << ApplyInputRule.new(input_rule) if input_rule
    steps << ApplyRules.new(@rules)
    steps << ApplyChecks.new(@checks) if @checks.any?
  end

  freeze
end

Instance Attribute Details

#checks ⇒ Object (readonly)

Returns the value of attribute checks.



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# File 'lib/dry/validation/schema.rb', line 27

def checks
  @checks
end

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/dry/validation/schema.rb', line 21

def config
  @config
end

#executor ⇒ Object (readonly)

Returns the value of attribute executor.



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# File 'lib/dry/validation/schema.rb', line 41

def executor
  @executor
end

#input_processor ⇒ Object (readonly)

Returns the value of attribute input_processor.



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# File 'lib/dry/validation/schema.rb', line 31

def input_processor
  @input_processor
end

#input_rule ⇒ Object (readonly)

Returns the value of attribute input_rule.



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# File 'lib/dry/validation/schema.rb', line 23

def input_rule
  @input_rule
end

#message_compiler ⇒ Object (readonly)

Returns the value of attribute message_compiler.



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# File 'lib/dry/validation/schema.rb', line 35

def message_compiler
  @message_compiler
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/dry/validation/schema.rb', line 37

def options
  @options
end

#predicates ⇒ Object (readonly)

Returns the value of attribute predicates.



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# File 'lib/dry/validation/schema.rb', line 29

def predicates
  @predicates
end

#rule_compiler ⇒ Object (readonly)

Returns the value of attribute rule_compiler.



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# File 'lib/dry/validation/schema.rb', line 33

def rule_compiler
  @rule_compiler
end

#rules ⇒ Object (readonly)

Returns the value of attribute rules.



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# File 'lib/dry/validation/schema.rb', line 25

def rules
  @rules
end

#type_map ⇒ Object (readonly)

Returns the value of attribute type_map.



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# File 'lib/dry/validation/schema.rb', line 39

def type_map
  @type_map
end

Class Method Details

.clone ⇒ Object 



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# File 'lib/dry/validation/schema/class_interface.rb', line 104

def self.clone
  klass = Class.new(self)
  klass.config.rules = []
  klass.config.registry = registry
  klass
end

.create_class(target, other = nil, &block) ⇒ Object 



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# File 'lib/dry/validation/schema/class_interface.rb', line 88

def self.create_class(target, other = nil, &block)
  klass =
    if other.is_a?(self)
      Class.new(other.class)
    elsif other.respond_to?(:schema) && other.schema.is_a?(self)
      Class.new(other.schema.class)
    else
      Validation.Schema(target.schema_class, parent: target, build: false, &block)
    end

  klass.config.path = target.path if other
  klass.config.input_processor = :noop

  klass
end

.default_messages ⇒ Object 



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# File 'lib/dry/validation/schema/class_interface.rb', line 145

def self.default_messages
  case config.messages
  when :yaml then Messages.default
  when :i18n then Messages::I18n.new
  else
    raise "+#{config.messages}+ is not a valid messages identifier"
  end
end

.default_options ⇒ Object 



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# File 'lib/dry/validation/schema/class_interface.rb', line 162

def self.default_options
  @default_options ||= { predicate_registry: registry,
    message_compiler: message_compiler,
    input_processor: input_processor,
    checks: config.checks }
end

.define(options = {}, &block) ⇒ Object 



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# File 'lib/dry/validation/schema/class_interface.rb', line 38

def self.define(options = {}, &block)
  source = options.fetch(:schema_class)
  config = source.config

  dsl_ext = config.dsl_extensions

  options = options.merge(rules: options[:rules].dup) if options.key?(:rules)
  dsl = Schema::Value.new(options.merge(registry: source.registry))
  dsl_ext.__send__(:extend_object, dsl) if dsl_ext
  dsl.predicates(options[:predicates]) if options.key?(:predicates)
  dsl.instance_exec(&block) if block

  target = dsl.schema_class

  if config.input
    config.input_rule = -> predicates {
      Schema::Value.new(registry: predicates).infer_predicates(Array(target.config.input)).to_ast
    }
  end

  rules = target.config.rules + (options.fetch(:rules, []) + dsl.rules)

  target.configure do |cfg|
    cfg.rules = rules
    cfg.checks = cfg.checks + dsl.checks
    cfg.path = dsl.path
    cfg.type_map = target.build_type_map(dsl.type_map) if cfg.type_specs
  end

  target
end

.define!(options = {}, &block) ⇒ Object 



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# File 'lib/dry/validation/schema/class_interface.rb', line 70

def self.define!(options = {}, &block)
  define(schema_class: self, &block)
end

.inherited(klass) ⇒ Object 



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# File 'lib/dry/validation/schema/class_interface.rb', line 169

def self.inherited(klass)
  super

  klass.config.options = klass.config.options.dup

  if registry && self != Schema
    klass.config.registry = registry.new(self)
  else
    klass.set_registry!
  end
end

.input_processor ⇒ Object 



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# File 'lib/dry/validation/schema/deprecated.rb', line 6

def self.input_processor
  @input_processor ||=
    begin
      if type_map.is_a?(Dry::Types::Safe) && config.input_processor != :noop
        type_map
      elsif type_map.size > 0 && config.input_processor != :noop
        build_hash_type(type_map)
      elsif input_processor_compiler
        input_processor_compiler.(rule_ast)
      else
        NOOP_INPUT_PROCESSOR
      end
    end
end

.input_processor_ast(type) ⇒ Object 



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# File 'lib/dry/validation/schema/deprecated.rb', line 21

def self.input_processor_ast(type)
  config.input_processor_map.fetch(type).schema_ast(rule_ast)
end

.input_processor_compiler ⇒ Object 



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# File 'lib/dry/validation/schema/deprecated.rb', line 25

def self.input_processor_compiler
  @input_processor_comp ||= config.input_processor_map[config.input_processor]
end

.message_compiler ⇒ Object 



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# File 'lib/dry/validation/schema/class_interface.rb', line 154

def self.message_compiler
  @message_compiler ||= MessageCompiler.new(messages)
end

.messages ⇒ Object 



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# File 'lib/dry/validation/schema/class_interface.rb', line 131

def self.messages
  default = default_messages

  if config.messages_file && config.namespace
    default.merge(config.messages_file).namespaced(config.namespace)
  elsif config.messages_file
    default.merge(config.messages_file)
  elsif config.namespace
    default.namespaced(config.namespace)
  else
    default
  end
end

.new(rules = config.rules, **options) ⇒ Object 



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# File 'lib/dry/validation/schema/class_interface.rb', line 34

def self.new(rules = config.rules, **options)
  super(rules, default_options.merge(options))
end

.option(name, default = nil) ⇒ Object 



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# File 'lib/dry/validation/schema/class_interface.rb', line 83

def self.option(name, default = nil)
  attr_reader(*name)
  options.update(name => default)
end

.options ⇒ Object 



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# File 'lib/dry/validation/schema/class_interface.rb', line 127

def self.options
  config.options
end

.predicates(predicate_set = nil) ⇒ Object 



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# File 'lib/dry/validation/schema/class_interface.rb', line 74

def self.predicates(predicate_set = nil)
  if predicate_set
    config.predicates = predicate_set
    set_registry!
  else
    config.predicates
  end
end

.registry ⇒ Object 



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# File 'lib/dry/validation/schema/class_interface.rb', line 115

def self.registry
  config.registry
end

.rule_ast ⇒ Object 



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# File 'lib/dry/validation/schema/class_interface.rb', line 158

def self.rule_ast
  @rule_ast ||= config.rules.map(&:to_ast)
end

.rules ⇒ Object 



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# File 'lib/dry/validation/schema/class_interface.rb', line 123

def self.rules
  config.rules
end

.set_registry! ⇒ Object 



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# File 'lib/dry/validation/schema/class_interface.rb', line 181

def self.set_registry!
  config.registry = PredicateRegistry[self, config.predicates]
end

.to_ast ⇒ Object 



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# File 'lib/dry/validation/schema/class_interface.rb', line 111

def self.to_ast
  [:schema, self]
end

.type_map ⇒ Object 



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# File 'lib/dry/validation/schema/class_interface.rb', line 119

def self.type_map
  config.type_map
end

Instance Method Details

#arity ⇒ Object 



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# File 'lib/dry/validation/schema.rb', line 84

def arity
  1
end

#ast ⇒ Object Also known as: to_ast 



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# File 'lib/dry/validation/schema.rb', line 88

def ast(*)
  self.class.to_ast
end

#call(input) ⇒ Object 



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# File 'lib/dry/validation/schema.rb', line 71

def call(input)
  output, result = executor.(input)
  Result.new(output, result, message_compiler, config.path)
end

#curry(*curry_args) ⇒ Object 



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# File 'lib/dry/validation/schema.rb', line 76

def curry(*curry_args)
  -> *args { call(*(curry_args + args)) }
end

#to_proc ⇒ Object 



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# File 'lib/dry/validation/schema.rb', line 80

def to_proc
  -> input { call(input) }
end

#with(new_options) ⇒ Object 



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# File 'lib/dry/validation/schema.rb', line 67

def with(new_options)
  self.class.new(self.class.rules, options.merge(new_options))
end