Class: ActiveRecord::ConnectionAdapters::PostgreSQL::Column

Inherits:
Column
  • Object
show all
Defined in:
activerecord/lib/active_record/connection_adapters/postgresql/column.rb

Overview

:nodoc:

Instance Attribute Summary

Attributes inherited from Column

#collation, #comment, #default, #default_function, #name, #null, #sql_type_metadata

Instance Method Summary collapse

Methods inherited from Column

#auto_populated?, #bigint?, #human_name

Methods included from Deduplicable

#deduplicate

Methods included from ActiveSupport::Concern

#append_features, #class_methods, extended, #included, #prepend_features, #prepended

Constructor Details

#initialize(serial: nil, identity: nil, generated: nil) ⇒ Column

Returns a new instance of Column.



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# File 'activerecord/lib/active_record/connection_adapters/postgresql/column.rb', line 9

def initialize(*, serial: nil, identity: nil, generated: nil, **)
  super
  @serial = serial
  @identity = identity
  @generated = generated
end

Instance Method Details

#==(other) ⇒ Object Also known as: eql? 



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# File 'activerecord/lib/active_record/connection_adapters/postgresql/column.rb', line 64

def ==(other)
  other.is_a?(Column) &&
    super &&
    identity? == other.identity? &&
    serial? == other.serial?
end

#array ⇒ Object Also known as: array? 



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# File 'activerecord/lib/active_record/connection_adapters/postgresql/column.rb', line 37

def array
  sql_type_metadata.sql_type.end_with?("[]")
end

#auto_incremented_by_db? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'activerecord/lib/active_record/connection_adapters/postgresql/column.rb', line 24

def auto_incremented_by_db?
  serial? || identity?
end

#encode_with(coder) ⇒ Object 



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# File 'activerecord/lib/active_record/connection_adapters/postgresql/column.rb', line 57

def encode_with(coder)
  coder["serial"] = @serial
  coder["identity"] = @identity
  coder["generated"] = @generated
  super
end

#enum? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'activerecord/lib/active_record/connection_adapters/postgresql/column.rb', line 42

def enum?
  type == :enum
end

#has_default? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'activerecord/lib/active_record/connection_adapters/postgresql/column.rb', line 33

def has_default?
  super && !virtual?
end

#hash ⇒ Object 



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# File 'activerecord/lib/active_record/connection_adapters/postgresql/column.rb', line 72

def hash
  Column.hash ^
    super.hash ^
    identity?.hash ^
    serial?.hash
end

#identity? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'activerecord/lib/active_record/connection_adapters/postgresql/column.rb', line 16

def identity?
  @identity
end

#init_with(coder) ⇒ Object 



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# File 'activerecord/lib/active_record/connection_adapters/postgresql/column.rb', line 50

def init_with(coder)
  @serial = coder["serial"]
  @identity = coder["identity"]
  @generated = coder["generated"]
  super
end

#serial? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'activerecord/lib/active_record/connection_adapters/postgresql/column.rb', line 20

def serial?
  @serial
end

#sql_type ⇒ Object 



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# File 'activerecord/lib/active_record/connection_adapters/postgresql/column.rb', line 46

def sql_type
  super.delete_suffix("[]")
end

#virtual? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'activerecord/lib/active_record/connection_adapters/postgresql/column.rb', line 28

def virtual?
  # We assume every generated column is virtual, no matter the concrete type
  @generated.present?
end