instance method
prohibit_shard_swapping
Ruby on Rails edge
Since v7.0.10Signature
prohibit_shard_swapping(enabled = true)Prohibit swapping shards while inside of the passed block.
In some cases you may want to be able to swap shards but not allow a nested call to connected_to or connected_to_many to swap again. This is useful in cases you’re using sharding to provide per-request database isolation.
Parameters
-
enabledopt = true
Source
# File activerecord/lib/active_record/connection_handling.rb, line 233
def prohibit_shard_swapping(enabled = true)
ActiveSupport::IsolatedExecutionState[:active_record_prohibit_shard_swapping] ||= Set.new
prev_value = ActiveSupport::IsolatedExecutionState[:active_record_prohibit_shard_swapping]
if enabled
ActiveSupport::IsolatedExecutionState[:active_record_prohibit_shard_swapping] = prev_value.dup.add(connection_specification_name)
else
ActiveSupport::IsolatedExecutionState[:active_record_prohibit_shard_swapping] = prev_value.dup.delete(connection_specification_name)
end
yield
ensure
ActiveSupport::IsolatedExecutionState[:active_record_prohibit_shard_swapping] = prev_value
end
Defined in activerecord/lib/active_record/connection_handling.rb line 233
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Defined in ActiveRecord::ConnectionHandling