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

Do not use. This class is for internal use only.
Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ::ActiveRecord::ConnectionAdapters::Column
Instance Chain:
self, ::ActiveRecord::ConnectionAdapters::Column, ::ActiveRecord::ConnectionAdapters::Deduplicable
Inherits: ActiveRecord::ConnectionAdapters::Column
Defined in: activerecord/lib/active_record/connection_adapters/postgresql/column.rb

Class Method Summary

::ActiveRecord::ConnectionAdapters::Column - Inherited

.new

Instantiates a new column in the table.

Instance Attribute Summary

::ActiveRecord::ConnectionAdapters::Column - Inherited

#limit, #precision, #scale, #sql_type, #type,
#auto_incremented_by_db?

whether the column is auto-populated by the database using a sequence.
#auto_populated?, #bigint?, #collation, #comment, #default, #default_function, #has_default?, #name, #null, #sql_type_metadata, #virtual?

Instance Method Summary

::ActiveRecord::ConnectionAdapters::Column - Inherited

#==, #encode_with,
#eql?

Alias for Column#==.
#hash,
#human_name

Returns the human name of the column name.
#init_with, #deduplicated

::ActiveRecord::ConnectionAdapters::Deduplicable - Included

#-@

Alias for Deduplicable#deduplicate.
#deduplicate, #deduplicated

Constructor Details

.new(serial: nil, identity: nil, generated: nil) ⇒ Column

[ GitHub ] 

  


# 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 Attribute Details



  

    #array   (readonly)
    Also known as: #array?
  

  [ GitHub ]


  

  


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



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


  








  

    #array?   (readonly)
  



  

    

Alias for #array.


  



  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/connection_adapters/postgresql/column.rb', line 40



alias :array? :array


  








  

    #auto_incremented_by_db?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


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



def auto_incremented_by_db?
  serial? || identity?
end


  








  

    #enum?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


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



def enum?
  type == :enum
end


  








  

    #fmod   (readonly)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/connection_adapters/postgresql/column.rb', line 7



delegate :oid, :fmod, to: :sql_type_metadata


  








  

    #has_default?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


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



def has_default?
  super && !virtual?
end


  








  

    #identity?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


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



def identity?
  @identity
end


  








  

    #oid   (readonly)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/connection_adapters/postgresql/column.rb', line 7



delegate :oid, :fmod, to: :sql_type_metadata


  








  

    #serial?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


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



def serial?
  @serial
end


  








  

    #virtual?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# 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


  







Instance Method Details



  

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

  [ GitHub ]


  

  


# 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


  








  

    #encode_with(coder)  
  

  [ GitHub ]


  

  


# 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


  








  

    #eql?(other)  
  



  

    

Alias for #==.


  



  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/connection_adapters/postgresql/column.rb', line 70



alias :eql? :==


  








  

    #hash  
  

  [ GitHub ]


  

  


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



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


  








  

    #init_with(coder)  
  

  [ GitHub ]


  

  


# 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


  








  

    #sql_type  
  

  [ GitHub ]


  

  


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



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