class ActiveRecord::ConnectionAdapters::PostgreSQL::Table
Active Record PostgreSQL Adapter Table
Inherits From
-
class
ActiveRecord::
ConnectionAdapters:: Table -
module
ActiveRecord::
ConnectionAdapters:: PostgreSQL:: ColumnMethods
Public instance methods
Adds an exclusion constraint.
t.exclusion_constraint("price WITH =, availability_range WITH &&", using: :gist, name: "price_check")
Source code GitHub
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 309
def exclusion_constraint(*args)
@base.add_exclusion_constraint(name, *args)
end
Removes the given exclusion constraint from the table.
t.remove_exclusion_constraint(name: "price_check")
Source code GitHub
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 318
def remove_exclusion_constraint(*args)
@base.remove_exclusion_constraint(name, *args)
end
Removes the given unique constraint from the table.
t.remove_unique_constraint(name: "unique_position")
Source code GitHub
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 336
def remove_unique_constraint(*args)
@base.remove_unique_constraint(name, *args)
end
Adds a unique constraint.
t.unique_constraint(:position, name: 'unique_position', deferrable: :deferred, nulls_not_distinct: true)
Source code GitHub
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 327
def unique_constraint(*args)
@base.add_unique_constraint(name, *args)
end
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"
Source code GitHub
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 356
def validate_check_constraint(*args)
@base.validate_check_constraint(name, *args)
end
Validates the given constraint on the table.
t.check_constraint("price > 0", name: "price_check", validate: false)
t.validate_constraint "price_check"
Source code GitHub
# File activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 346
def validate_constraint(*args)
@base.validate_constraint(name, *args)
end