Class: Foobara::Autocrud::CreateCommands

Inherits:
Command
  • Object
show all
Defined in:
foobara-autocrud-0.0.1/src/create_commands.rb

Overview

TODO: autocrud commands! commands:

CreateUser UpdateUserAtom UpdateUserAggregate

can records be created in this situation?? or only updated?

HardDeleteUser AppendToUserRatings RemoveFromUserRatings FindUser FindUserBy QueryUser

types:

User

UserAttributes
UserCreateAttributes
UserUpdateAtomAttributes
  remove all required and defaults
  primary key required
UserUpdateAggregateAttributes
  convert all associations to their XUpdateAggregateAttributes types??
UserPrimaryKeyType ??

if primary key created by db

no primary key in UserCreateAttributes

if primary key created externally

primary key in UserCreateAttributes and is required

TODO: consider moving helper methods here into their own commands?

Constant Summary collapse

ALLOWED_COMMANDS = 
%i[
  create
  update_atom
  update_aggregate
  hard_delete
  find
  find_by
  query
  query_all
  append
].freeze

Constants included from TruncatedInspect

TruncatedInspect::MAX_LENGTH

Instance Attribute Summary collapse

Attributes included from CommandPatternImplementation::Concerns::Subcommands

#is_subcommand

Attributes included from CommandPatternImplementation::Concerns::Runtime

#exception, #outcome

Attributes included from CommandPatternImplementation::Concerns::Errors

#error_collection

Attributes included from CommandPatternImplementation::Concerns::Inputs

#inputs, #raw_inputs

Instance Method Summary collapse

Methods inherited from Command

install!, reset_all

Methods included from Concern

foobara_class_methods_module_for, foobara_concern?, included

Methods included from CommandPatternImplementation::Concerns::Reflection

#initialize

Methods included from CommandPatternImplementation::Concerns::DomainMappers

#domain_map, #domain_map!, #run_mapped_subcommand!

Methods included from CommandPatternImplementation::Concerns::Subcommands

#run_subcommand!, #subcommand?

Methods included from CommandPatternImplementation::Concerns::Entities

#load_entities, #load_records

Methods included from CommandPatternImplementation::Concerns::Transactions

#auto_detect_current_transactions, #commit_transaction, #open_transaction, #opened_transactions, #relevant_entity_classes, #rollback_transaction, #transactions

Methods included from CommandPatternImplementation::Concerns::StateMachine

#state_machine

Methods included from CommandPatternImplementation::Concerns::Runtime

#halt!, #run, #run!, #run_execute, #succeed, #success?, #validate, #validate_records

Methods included from CommandPatternImplementation::Concerns::Errors

#initialize

Methods included from CommandPatternImplementation::Concerns::Inputs

#cast_and_validate_inputs, #initialize, #method_missing, #respond_to_missing?, #respond_to_missing_for_inputs?

Methods included from TruncatedInspect

#inspect, truncating

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Foobara::CommandPatternImplementation::Concerns::Inputs

Instance Attribute Details

#created_commands ⇒ Object 



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# File 'foobara-autocrud-0.0.1/src/create_commands.rb', line 79

def created_commands
  @created_commands ||= []
end

Instance Method Details

#commands_to_create ⇒ Object 



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# File 'foobara-autocrud-0.0.1/src/create_commands.rb', line 83

def commands_to_create
  @commands_to_create ||= if commands == :all || commands.nil?
                            ALLOWED_COMMANDS
                          else
                            Util.array(commands)
                          end
end

#create_append_command(path_to_collection, association_type) ⇒ Object 



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# File 'foobara-autocrud-0.0.1/src/create_commands.rb', line 371

def create_append_command(path_to_collection, association_type)
  entity_class = self.entity_class
  start = path_to_collection.size - 2
  start = 0 if start < 0
  collection_name = path_to_collection[start..start + 1]
  collection_name = collection_name.map { |part| Util.classify(part) }.join

  domain = entity_class.domain
  # TODO: group these by entity name?
  command_name = [*domain.scoped_full_path,
                  "AppendTo#{entity_class.entity_type.scoped_short_name}#{collection_name}"].join("::")

  entity_input_name = Util.underscore_sym(entity_class.entity_type.scoped_short_name)

  Util.make_class(command_name, Foobara::Command) do
    define_method :path_to_collection do
      path_to_collection
    end

    define_method :entity_input_name do
      entity_input_name
    end

    # TODO: can't use attributes: :attributes but should be able to.
    # Allow a hash to create these these things?
    inputs type: :attributes,
           element_type_declarations: {
             entity_input_name => entity_class,
             element_to_append: association_type.target_class
           },
           required: [entity_input_name, :element_to_append]

    result association_type.target_class

    to_load entity_input_name

    def execute
      append_record_to_collection

      element_to_append
    end

    attr_accessor :new_collection

    def append_record_to_collection
      collection = DataPath.value_at(path_to_collection, record)

      self.new_collection = [*collection, element_to_append]

      DataPath.set_value_at(record, new_collection, path_to_collection)
    end

    def record
      inputs[entity_input_name]
    end
  end
end

#create_append_commands ⇒ Object 



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# File 'foobara-autocrud-0.0.1/src/create_commands.rb', line 356

def create_append_commands
  commands = []

  entity_class.associations.each_pair do |data_path, type|
    data_path = DataPath.parse(data_path)
    if data_path.simple_collection?
      path = data_path.path[0..-2]
      commands << create_append_command(path, type)
      commands << create_remove_command(path, type)
    end
  end

  commands
end

#create_commands ⇒ Object 



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# File 'foobara-autocrud-0.0.1/src/create_commands.rb', line 65

def create_commands
  commands_to_create.each do |command_symbol|
    method = if command_symbol == :append
               "create_append_commands"
             else
               "create_#{command_symbol}_command"
             end

    created_commands << send(method)
  end

  self.created_commands = created_commands.flatten
end

#create_create_command ⇒ Object 



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# File 'foobara-autocrud-0.0.1/src/create_commands.rb', line 161

def create_create_command
  entity_class = self.entity_class
  domain = entity_class.domain
  command_name = [*domain.scoped_full_path, "Create#{entity_class.entity_type.scoped_short_name}"].join("::")

  Util.make_class(command_name, Foobara::Command) do
    define_method :entity_class do
      entity_class
    end

    # TODO: does this work with User instead of :User ?
    # We can't come up with a cleaner way to do this?
    # TODO: we should be allowed to just pass the type instead of transforming it to declaration_data
    inputs entity_class.attributes_type
    result entity_class

    def execute
      create_record

      record
    end

    attr_accessor :record

    def create_record
      self.record = entity_class.create(inputs)
    end
  end
end

#create_find_by_command ⇒ Object 



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# File 'foobara-autocrud-0.0.1/src/create_commands.rb', line 266

def create_find_by_command
  entity_class = self.entity_class
  domain = entity_class.domain
  command_name = [*domain.scoped_full_path, "Find#{entity_class.entity_type.scoped_short_name}By"].join("::")

  Util.make_class(command_name, Foobara::Command) do
    define_method :entity_class do
      entity_class
    end

    # TODO: can't use attributes: :attributes but should be able to.
    inputs entity_class.attributes_for_find_by
    result entity_class

    possible_error Entity::NotFoundError

    def execute
      load_record

      record
    end

    attr_accessor :record

    def load_record
      self.record = entity_class.find_by(inputs)

      unless record
        add_runtime_error Entity::NotFoundError.new(inputs, entity_class:)
      end
    end
  end
end

#create_find_command ⇒ Object 



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# File 'foobara-autocrud-0.0.1/src/create_commands.rb', line 227

def create_find_command
  entity_class = self.entity_class
  domain = entity_class.domain
  command_name = [*domain.scoped_full_path, "Find#{entity_class.entity_type.scoped_short_name}"].join("::")

  Util.make_class(command_name, Foobara::Command) do
    define_method :entity_class do
      entity_class
    end

    inputs entity_class.primary_key_attribute => entity_class.primary_key_type
    result entity_class

    possible_error Entity::NotFoundError

    def execute
      load_record

      record
    end

    attr_accessor :record

    def load_record
      self.record = entity_class.load(record_id)
    rescue Entity::NotFoundError => e
      add_runtime_error e
    end

    def primary_key_attribute
      entity_class.primary_key_attribute
    end

    def record_id
      inputs[primary_key_attribute]
    end
  end
end

#create_hard_delete_command ⇒ Object 



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# File 'foobara-autocrud-0.0.1/src/create_commands.rb', line 191

def create_hard_delete_command
  entity_class = self.entity_class
  domain = entity_class.domain
  command_name = [*domain.scoped_full_path, "HardDelete#{entity_class.entity_type.scoped_short_name}"].join("::")

  Util.make_class(command_name, Foobara::Command) do
    singleton_class.define_method :record_method_name do
      @record_method_name ||= Util.underscore(entity_class.entity_type.scoped_short_name)
    end

    foobara_delegate :record_method_name, to: :class

    def record
      send(record_method_name)
    end

    # TODO: does this work with User instead of :User ?
    # We can't come up with a cleaner way to do this?
    # TODO: make this work with entity classes!! no reason not to and very inconvenient
    inputs Util.underscore(entity_class.entity_type.scoped_short_name) => entity_class
    result entity_class

    load_all

    def execute
      delete_record

      record
    end

    def delete_record
      record.hard_delete!
    end
  end
end

#create_query_all_command ⇒ Object 



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# File 'foobara-autocrud-0.0.1/src/create_commands.rb', line 328

def create_query_all_command
  entity_class = self.entity_class
  domain = entity_class.domain
  command_name = [*domain.scoped_full_path, "QueryAll#{entity_class.entity_type.scoped_short_name}"].join("::")

  Util.make_class(command_name, Foobara::Command) do
    define_method :entity_class do
      entity_class
    end

    # TODO: can't use attributes: :attributes but should be able to.
    inputs({})
    result [entity_class]

    def execute
      run_query

      records
    end

    attr_accessor :records

    def run_query
      self.records = entity_class.all
    end
  end
end

#create_query_command ⇒ Object 



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# File 'foobara-autocrud-0.0.1/src/create_commands.rb', line 300

def create_query_command
  entity_class = self.entity_class
  domain = entity_class.domain
  command_name = [*domain.scoped_full_path, "Query#{entity_class.entity_type.scoped_short_name}"].join("::")

  Util.make_class(command_name, Foobara::Command) do
    define_method :entity_class do
      entity_class
    end

    # TODO: can't use attributes: :attributes but should be able to.
    inputs entity_class.attributes_for_find_by
    result [entity_class]

    def execute
      run_query

      records
    end

    attr_accessor :records

    def run_query
      self.records = entity_class.find_many_by(inputs)
    end
  end
end

#create_remove_command(path_to_collection, association_type) ⇒ Object 



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# File 'foobara-autocrud-0.0.1/src/create_commands.rb', line 429

def create_remove_command(path_to_collection, association_type)
  entity_class = self.entity_class
  start = path_to_collection.size - 2
  start = 0 if start < 0
  collection_name = path_to_collection[start..start + 1]
  collection_name = collection_name.map { |part| Util.classify(part) }.join

  domain = entity_class.domain
  # TODO: group these by entity name?
  command_name = [*domain.scoped_full_path,
                  "RemoveFrom#{entity_class.entity_type.scoped_short_name}#{collection_name}"].join("::")

  entity_input_name = Util.underscore_sym(entity_class.entity_type.scoped_short_name)

  Util.make_class(command_name, Foobara::Command) do
    Util.make_class("#{command_name}::ElementNotInCollectionError", Foobara::RuntimeError) do
      class << self
        # TODO: make this the default
        def context_type_declaration
          {}
        end
      end
    end

    define_method :path_to_collection do
      path_to_collection
    end

    define_method :entity_input_name do
      entity_input_name
    end

    # TODO: can't use attributes: :attributes but should be able to.
    # Allow a hash to create these these things?
    inputs type: :attributes,
           element_type_declarations: {
             entity_input_name => entity_class,
             element_to_remove: association_type.target_class
           },
           required: [entity_input_name, :element_to_remove]

    result association_type.target_class

    to_load entity_input_name

    def execute
      remove_record_from_collection

      element_to_remove
    end

    attr_accessor :new_collection

    def remove_record_from_collection
      collection = DataPath.value_at(path_to_collection, record)

      self.new_collection = collection.reject { |element| element == element_to_remove }

      if collection == new_collection
        add_runtime_error(
          self.class::ElementNotInCollectionError.new(
            message: "Element not in collection so can't remove it.",
            context: {} # TODO: make this the default
          )
        )
      end

      DataPath.set_value_at(record, new_collection, path_to_collection)
    end

    def record
      inputs[entity_input_name]
    end
  end
end

#create_update_aggregate_command ⇒ Object 



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# File 'foobara-autocrud-0.0.1/src/create_commands.rb', line 127

def create_update_aggregate_command
  entity_class = self.entity_class
  domain = entity_class.domain
  command_name = [*domain.scoped_full_path,
                  "Update#{entity_class.entity_type.scoped_short_name}Aggregate"].join("::")

  Util.make_class command_name, Foobara::Command do
    define_method :entity_class do
      entity_class
    end

    # TODO: does this work with User instead of :User ?
    # We can't come up with a cleaner way to do this?
    inputs entity_class.attributes_for_aggregate_update
    result entity_class # seems like we should just use nil?

    def execute
      update_record

      record
    end

    attr_accessor :record

    def load_records
      self.record = entity_class.load(id)
    end

    def update_record
      record.update_aggregate(inputs)
    end
  end
end

#create_update_atom_command ⇒ Object

rubocop:disable Lint/NestedMethodDefinition



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# File 'foobara-autocrud-0.0.1/src/create_commands.rb', line 92

def create_update_atom_command
  entity_class = self.entity_class
  domain = entity_class.domain
  command_name = [*domain.scoped_full_path, "Update#{entity_class.entity_type.scoped_short_name}Atom"].join("::")

  Util.make_class command_name, Foobara::Command do
    define_method :entity_class do
      entity_class
    end

    # TODO: make this work with just inputs :UserAttributesForAtomUpdate
    # Should this be moved to this project instead of living in entities?
    inputs entity_class.attributes_for_atom_update
    result entity_class # seems like we should just use nil?

    def execute
      update_record

      record
    end

    attr_accessor :record

    def load_records
      self.record = entity_class.load(id)
    end

    def update_record
      inputs.each_pair do |attribute_name, value|
        record.write_attribute(attribute_name, value)
      end
    end
  end
end

#execute ⇒ Object 



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# File 'foobara-autocrud-0.0.1/src/create_commands.rb', line 57

def execute
  create_commands

  created_commands
end