class ActiveRecord::ConnectionAdapters::PostgreSQL::Table
Active Record PostgreSQL Adapter Table¶ ↑
Public Instance Methods
exclusion_constraint(*args)
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Adds an exclusion constraint.
t.exclusion_constraint("price WITH =, availability_range WITH &&", using: :gist, name: "price_check")
See connection.add_exclusion_constraint
# File lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 309 def exclusion_constraint(*args) @base.add_exclusion_constraint(name, *args) end
remove_exclusion_constraint(*args)
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Removes the given exclusion constraint from the table.
t.remove_exclusion_constraint(name: "price_check")
See connection.remove_exclusion_constraint
# File lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 318 def remove_exclusion_constraint(*args) @base.remove_exclusion_constraint(name, *args) end
remove_unique_constraint(*args)
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Removes the given unique constraint from the table.
t.remove_unique_constraint(name: "unique_position")
See connection.remove_unique_constraint
# File lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 336 def remove_unique_constraint(*args) @base.remove_unique_constraint(name, *args) end
unique_constraint(*args)
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Adds a unique constraint.
t.unique_constraint(:position, name: 'unique_position', deferrable: :deferred, nulls_not_distinct: true)
See connection.add_unique_constraint
# File lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 327 def unique_constraint(*args) @base.add_unique_constraint(name, *args) end
validate_check_constraint(*args)
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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 lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 356 def validate_check_constraint(*args) @base.validate_check_constraint(name, *args) end
validate_constraint(*args)
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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 lib/active_record/connection_adapters/postgresql/schema_definitions.rb, line 346 def validate_constraint(*args) @base.validate_constraint(name, *args) end