class ActiveRecord::ConnectionAdapters::PostgreSQL::Table

Adds an exclusion constraint.

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

See connection.add_exclusion_constraint

# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 311
def exclusion_constraint(...)
  @base.add_exclusion_constraint(name, ...)
end

remove_exclusion_constraint (...)

Removes the given exclusion constraint from the table.

t.remove_exclusion_constraint(name: "price_check")

See connection.remove_exclusion_constraint

# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 320
def remove_exclusion_constraint(...)
  @base.remove_exclusion_constraint(name, ...)
end

remove_unique_constraint (...)

Removes the given unique constraint from the table.

t.remove_unique_constraint(name: "unique_position")

See connection.remove_unique_constraint

# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 338
def remove_unique_constraint(...)
  @base.remove_unique_constraint(name, ...)
end

unique_constraint (...)

Adds a unique constraint.

t.unique_constraint(:position, name: 'unique_position', deferrable: :deferred, nulls_not_distinct: true)

See connection.add_unique_constraint

# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 329
def unique_constraint(...)
  @base.add_unique_constraint(name, ...)
end

validate_check_constraint (...)

Validates the given check constraint on the table

t.check_constraint("price > 0", name: "price_check", validate: false)
t.validate_check_constraint name: "price_check"

See connection.validate_check_constraint

# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 358
def validate_check_constraint(...)
  @base.validate_check_constraint(name, ...)
end

validate_constraint (...)

Validates the given constraint on the table.

t.check_constraint("price > 0", name: "price_check", validate: false)
t.validate_constraint "price_check"

See connection.validate_constraint

# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 348
def validate_constraint(...)
  @base.validate_constraint(name, ...)
end

class ActiveRecord::ConnectionAdapters::PostgreSQL::Table

Active Record PostgreSQL Adapter Table¶ ↑

Public Instance Methods