Class: Foobara::Persistence::EntityAttributesCrudDriver::Table

Inherits:
Object
  • Object
show all
Defined in:
foobara-0.3.0/projects/persistence/src/entity_attributes_crud_driver.rb

Overview

TODO: relocate this to another file?

Direct Known Subclasses

CrudDrivers::InMemoryMinimal::Table

Defined Under Namespace

Classes: CannotCrudError, CannotDeleteError, CannotFindError, CannotInsertError, CannotUpdateError

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(entity_class, crud_driver, table_name = nil) ⇒ Table

Returns a new instance of Table.



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 108

def initialize(entity_class, crud_driver, table_name = nil)
  if table_name.nil?
    table_name = Util.underscore(entity_class.entity_name)
    table_name.gsub!(/^types::/, "")
    table_name.gsub!("::", "_")
  end

  self.crud_driver = crud_driver
  self.entity_class = entity_class
  # what is this used for?
  self.raw_connection = crud_driver.raw_connection
  self.table_name = table_name
end

Instance Attribute Details

#crud_driver ⇒ Object

Returns the value of attribute crud_driver.



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 106

def crud_driver
  @crud_driver
end

#entity_class ⇒ Object

Returns the value of attribute entity_class.



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 106

def entity_class
  @entity_class
end

#raw_connection ⇒ Object

Returns the value of attribute raw_connection.



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 106

def raw_connection
  @raw_connection
end

#table_name ⇒ Object

Returns the value of attribute table_name.



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 106

def table_name
  @table_name
end

Instance Method Details

#all(page_size: nil) ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 129

def all(page_size: nil)
  # :nocov:
  raise "subclass responsibility"
  # :nocov:
end

#all_exist?(record_ids) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 282

def all_exist?(record_ids)
  record_ids.all? do |record_id|
    exists?(record_id)
  end
end

#count ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 272

def count
  # :nocov:
  raise "subclass responsibility"
  # :nocov:
end

#exists?(record_id) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 278

def exists?(record_id)
  !!find(record_id)
end

#find(_record_id) ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 139

def find(_record_id)
  # :nocov:
  raise "subclass responsibility"
  # :nocov:
end

#find!(record_id) ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 145

def find!(record_id)
  attributes = find(record_id)

  unless attributes
    raise CannotFindError.new(record_id, "does not exist")
  end

  attributes
end

#find_all_by_attribute_any_of(attribute_name, values) ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 179

def find_all_by_attribute_any_of(attribute_name, values)
  all.select do |attributes|
    values.include?(attributes[attribute_name])
  end
end

#find_all_by_attribute_containing_any_of(attribute_name, values) ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 185

def find_all_by_attribute_containing_any_of(attribute_name, values)
  all.select do |attributes|
    attributes[attribute_name]&.any? do |attribute_value|
      values.include?(attribute_value)
    end
  end
end

#find_by(attributes_filter) ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 193

def find_by(attributes_filter)
  all.find do |found_attributes|
    matches_attributes_filter?(found_attributes, attributes_filter)
  end
end

#find_by_attribute_containing(attribute_name, value) ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 161

def find_by_attribute_containing(attribute_name, value)
  found_type = entity_class.attributes_type.type_at_path("#{attribute_name}.#")

  if value
    value = restore_attributes(value, found_type)
  end

  all.find do |found_attributes|
    found_attributes[attribute_name].any? do |found_value|
      if found_value
        found_value = restore_attributes(found_value, found_type)
      end

      found_value == value
    end
  end
end

#find_many!(record_ids) ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 155

def find_many!(record_ids)
  record_ids.each.lazy.map do |record_id|
    find!(record_id)
  end
end

#find_many_by(attributes_filter) ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 199

def find_many_by(attributes_filter)
  Enumerator.new do |yielder|
    all.each do |found_attributes|
      if matches_attributes_filter?(found_attributes, attributes_filter)
        yielder << found_attributes
      end
    end
  end
end

#first ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 135

def first
  all.first
end

#hard_delete(_record_id) ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 251

def hard_delete(_record_id)
  # :nocov:
  raise "subclass responsibility"
  # :nocov:
end

#hard_delete_all! ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 266

def hard_delete_all!
  # :nocov:
  raise "subclass responsibility"
  # :nocov:
end

#hard_delete_many(record_ids) ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 257

def hard_delete_many(record_ids)
  # TODO: add a test for a driver that doesn't override this and remove these :nocov: comments
  # :nocov:
  record_ids.each.lazy.map do |record_id|
    delete(record_id)
  end
  # :nocov:
end

#insert(_attributes) ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 230

def insert(_attributes)
  # :nocov:
  raise "subclass responsibility"
  # :nocov:
end

#insert_many(attributes_array) ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 236

def insert_many(attributes_array)
  # TODO: add a test for a driver that doesn't override this and remove these :nocov: comments
  # :nocov:
  attributes_array.each.lazy.map do |attributes|
    insert(attributes)
  end
  # :nocov:
end

#matches_attributes_filter?(attributes, attributes_filter) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 209

def matches_attributes_filter?(attributes, attributes_filter)
  attributes_filter.all? do |attribute_name_or_path, value|
    # get the model-free type?
    attribute_type = entity_class.attributes_type.type_at_path(attribute_name_or_path)

    value = restore_attributes(value, attribute_type)

    if attribute_name_or_path.is_a?(::Array)
      values = DataPath.values_at(attribute_name_or_path, attributes)

      values.any? do |attribute_value|
        restore_attributes(attribute_value, attribute_type) == value
      end
    else
      attribute_value = DataPath.value_at(attribute_name_or_path, attributes)
      attribute_value = restore_attributes(attribute_value, attribute_type)
      attribute_value == value
    end
  end
end

#primary_key_attribute ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 292

def primary_key_attribute
  entity_class.primary_key_attribute
end

#record_id_for(attributes) ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 288

def record_id_for(attributes)
  attributes&.[](primary_key_attribute)
end

#restore_attributes(object, type = entity_class.attributes_type) ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 296

def restore_attributes(object, type = entity_class.attributes_type)
  if type.extends?(BuiltinTypes[:attributes])
    object.to_h do |attribute_name, attribute_value|
      attribute_type = type.type_at_path(attribute_name)
      [attribute_name.to_sym, restore_attributes(attribute_value, attribute_type)]
    end
  elsif type.extends?(BuiltinTypes[:tuple])
    # TODO: test this code path
    # :nocov:
    object.map.with_index do |value, index|
      element_type = type.element_types[index]
      restore_attributes(value, element_type)
    end
    # :nocov:
  elsif type.extends?(BuiltinTypes[:array])
    element_type = type.element_type
    object.map { |value| restore_attributes(value, element_type) }
  elsif type.extends?(BuiltinTypes[:entity])
    if object.is_a?(Model)
      if object.persisted?
        object = object.primary_key
        restore_attributes(object, type.target_class.primary_key_type)
      else
        object
      end
    else
      restore_attributes(object, type.target_class.primary_key_type)
    end
  elsif type.extends?(BuiltinTypes[:model])
    if object.is_a?(Model)
      object = object.attributes
    end
    restore_attributes(object, type.element_types)
  else
    outcome = type.process_value(object)

    if outcome.success?
      outcome.result
    else
      # TODO: figure out how to test this code path
      # :nocov:
      object
      # :nocov:
    end
  end
end

#select(_query_declaration) ⇒ Object

CRUD



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 123

def select(_query_declaration)
  # :nocov:
  raise "subclass responsibility"
  # :nocov:
end

#update(_record) ⇒ Object 



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# File 'projects/persistence/src/entity_attributes_crud_driver.rb', line 245

def update(_record)
  # :nocov:
  raise "subclass responsibility"
  # :nocov:
end