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class ActiveRecord::ConnectionAdapters::PostgreSQL::AlterTable

Active Record PostgreSQL Adapter Alter Table

Inherits From

Attributes

[R] constraint_validations
[R] exclusion_constraint_adds
[R] unique_constraint_adds

Public class methods

new(td)

Source code GitHub 
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 366
def initialize(td)
  super
  @constraint_validations = []
  @exclusion_constraint_adds = []
  @unique_constraint_adds = []
end

Public instance methods

add_exclusion_constraint(expression, options)

Source code GitHub 
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 377
def add_exclusion_constraint(expression, options)
  @exclusion_constraint_adds << @td.new_exclusion_constraint_definition(expression, options)
end

add_unique_constraint(column_name, options)

Source code GitHub 
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 381
def add_unique_constraint(column_name, options)
  @unique_constraint_adds << @td.new_unique_constraint_definition(column_name, options)
end

validate_constraint(name)

Source code GitHub 
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 373
def validate_constraint(name)
  @constraint_validations << name
end

Definition files