Class: Baza::Driver::Pg::ForeignKey

Inherits:
ForeignKey show all
Defined in:
lib/baza/driver/pg/foreign_key.rb

Instance Attribute Summary

Attributes inherited from ForeignKey

#column_name, #db, #name, #referenced_column_name, #referenced_table_name, #table_name

Instance Method Summary collapse

Methods inherited from ForeignKey

#column, #table, #to_param

Methods included from Baza::DatabaseModelFunctionality

#model_name, #to_model

Constructor Details

#initialize(args) ⇒ ForeignKey

Returns a new instance of ForeignKey.



2
3
4
5
6
7
8
9
10
11
12
 
# File 'lib/baza/driver/pg/foreign_key.rb', line 2

def initialize(args)
  @db = args.fetch(:db)

  data = args.fetch(:data)

  @column_name = data.fetch(:column_name)
  @name = data.fetch(:constraint_name)
  @table_name = data.fetch(:table_name)
  @referenced_column_name = data.fetch(:foreign_column_name)
  @referenced_table_name = data.fetch(:foreign_table_name)
end

Instance Method Details

#drop ⇒ Object 



14
15
16
17
18
19
20
 
# File 'lib/baza/driver/pg/foreign_key.rb', line 14

def drop
  @db.query("
    ALTER TABLE #{@db.quote_table(table_name)}
    DROP CONSTRAINT #{@db.quote_table(name)}
  ")
  true
end