Class: Apartment::Adapters::Mysql2Adapter

Inherits:
AbstractAdapter show all
Defined in:
lib/apartment/adapters/mysql2_adapter.rb

Overview

v4 MySQL adapter using database-per-tenant isolation (mysql2 driver).

Resolves tenant-specific connection configs by setting the database key to the environmentified tenant name. Lifecycle operations (create/drop) execute DDL against the default connection.

Direct Known Subclasses

TrilogyAdapter

Instance Attribute Summary

Attributes inherited from AbstractAdapter

#connection_config

Instance Method Summary collapse

Methods inherited from AbstractAdapter

#aborted_transaction?, #apply_pinned_qualification, #check_pinned_subclass, #create, #default_tenant, #drop, #environmentify, #inherits_pinned_table?, #initialize, #migrate, #nearest_pinned_ancestor, #physical_tenant_name, #process_excluded_models, #process_pinned_model, #process_pinned_models, #qualify_pinned_table_name, #qualify_pinned_table_name_prefix, #seed, #tenant_container_gone?, #unregistered_pinned_subclass?, #validated_connection_config, #warn_unqualified_subclass, #warn_unregistered_pinned_subclasses

Constructor Details

This class inherits a constructor from Apartment::Adapters::AbstractAdapter

Instance Method Details

#failsafe_error_classes ⇒ Object

The database-per-tenant missing-tenant error: connecting to a dropped database raises ActiveRecord::NoDatabaseError (MySQL error 1049) — an unambiguous signal. It surfaces raw at query time, or wrapped in ApartmentError when ConnectionHandling resolves the pool (the dev-mode pending-migration check), so both are listed; #container_error? gates on the unwrapped NoDatabaseError. Inherited by TrilogyAdapter.



34
35
36
 
# File 'lib/apartment/adapters/mysql2_adapter.rb', line 34

def failsafe_error_classes
  [ActiveRecord::NoDatabaseError, Apartment::ApartmentError]
end

#pinned_table_qualifier ⇒ Object

Pinned tables live in the default tenant's database; every tenant connection can reach them by database-qualifying the name.



19
20
21
 
# File 'lib/apartment/adapters/mysql2_adapter.rb', line 19

def pinned_table_qualifier
  base_config['database']
end

#resolve_connection_config(tenant, base_config: nil) ⇒ Object 



23
24
25
26
 
# File 'lib/apartment/adapters/mysql2_adapter.rb', line 23

def resolve_connection_config(tenant, base_config: nil)
  config = base_config || send(:base_config)
  config.merge('database' => environmentify(tenant))
end

#shared_pinned_connection? ⇒ Boolean

Returns:

  • (Boolean) 


13
14
15
 
# File 'lib/apartment/adapters/mysql2_adapter.rb', line 13

def shared_pinned_connection?
  !Apartment.config.force_separate_pinned_pool
end