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Class: ActiveRecord::ConnectionAdapters::MySQL::TableDefinition

Overview

Active Record MySQL Adapter Table Definition

Class Method Summary

::ActiveRecord::ConnectionAdapters::TableDefinition - Inherited

.new

Instance Attribute Summary

::ActiveRecord::ConnectionAdapters::TableDefinition - Inherited

#as, #check_constraints, #comment, #foreign_keys, #if_not_exists, #indexes, #name, #options, #temporary

Instance Method Summary

ColumnMethods - Included

#blob, #longblob, #longtext, #mediumblob, #mediumtext, #tinyblob, #tinytext, #unsigned_bigint, #unsigned_integer

::ActiveRecord::ConnectionAdapters::TableDefinition - Inherited

#[]

Returns a ::ActiveRecord::ConnectionAdapters::ColumnDefinition for the column with name name.
#belongs_to

Alias for TableDefinition#references.
#blob, #check_constraint,
#column

Instantiates a new column for the table.
#columns

Returns an array of ::ActiveRecord::ConnectionAdapters::ColumnDefinition objects for the columns of the table.
#foreign_key,
#index

Adds index options to the indexes hash, keyed by column name This is primarily used to track indexes that need to be created after the table.
#numeric,
#references

Adds a reference.
#remove_column

remove the column name from the table.
#set_primary_key,
#timestamps

Appends :datetime columns :created_at and :updated_at to the table.
#aliased_types, #create_column_definition, #integer_like_primary_key?, #integer_like_primary_key_type, #raise_on_duplicate_column, #valid_column_definition_options, #new_check_constraint_definition, #new_column_definition, #new_foreign_key_definition, #primary_keys

::ActiveRecord::ConnectionAdapters::ColumnMethods - Included

#column

Appends a column or columns of a specified type.
#primary_key

Appends a primary key definition to the table definition.

Constructor Details

.new(conn, name, charset: nil, collation: nil) ⇒ TableDefinition

[ GitHub ] 

  


# File 'activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb', line 60



def initialize(conn, name, charset: nil, collation: nil, **)
  super
  @charset = charset
  @collation = collation
end


  







Instance Attribute Details



  

    #charset   (readonly)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb', line 58



attr_reader :charset, :collation


  








  

    #collation   (readonly)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb', line 58



attr_reader :charset, :collation


  







Instance Method Details



  

    #aliased_types(name, fallback)   (private)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb', line 87



def aliased_types(name, fallback)
  fallback
end


  








  

    #integer_like_primary_key_type(type, options)   (private)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb', line 91



def integer_like_primary_key_type(type, options)
  unless options[:auto_increment] == false
    options[:auto_increment] = true
  end

  type
end


  








  

    #new_column_definition(name, type, **options)  
  

  

    This method is for internal use only.
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb', line 66



def new_column_definition(name, type, **options) # :nodoc:
  case type
  when :virtual
    type = options[:type]
  when :primary_key
    type = :integer
    options[:limit] ||= 8
    options[:primary_key] = true
  when /\Aunsigned_(?<type>.+)\z/
    type = $~[:type].to_sym
    options[:unsigned] = true
  end

  super
end


  








  

    #valid_column_definition_options   (private)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb', line 83



def valid_column_definition_options
  super + [:auto_increment, :charset, :as, :size, :unsigned, :first, :after, :type, :stored]
end