Skip to Content Skip to Search

Active Record PostgreSQL Adapter Table

Methods
E
R
U
Included Modules

Instance Public methods

exclusion_constraint(*args)

Adds an exclusion constraint.

t.exclusion_constraint("price WITH =, availability_range WITH &&", using: :gist, name: "price_check")

See connection.add_exclusion_constraint

Source: show 

# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 299
def exclusion_constraint(*args)
  @base.add_exclusion_constraint(name, *args)
end

remove_exclusion_constraint(*args)

Removes the given exclusion constraint from the table.

t.remove_exclusion_constraint(name: "price_check")

See connection.remove_exclusion_constraint

Source: show 

# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 308
def remove_exclusion_constraint(*args)
  @base.remove_exclusion_constraint(name, *args)
end

remove_unique_key(*args)

Removes the given unique constraint from the table.

t.remove_unique_key(name: "unique_position")

See connection.remove_unique_key

Source: show 

# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 326
def remove_unique_key(*args)
  @base.remove_unique_key(name, *args)
end

unique_key(*args)

Adds an unique constraint.

t.unique_key(:position, name: 'unique_position', deferrable: :deferred)

See connection.add_unique_key

Source: show 

# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 317
def unique_key(*args)
  @base.add_unique_key(name, *args)
end