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Class: ActiveRecord::Tasks::SQLiteDatabaseTasks

Do not use. This class is for internal use only.
Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, AbstractTasks
Instance Chain:
self, AbstractTasks
Inherits: ActiveRecord::Tasks::AbstractTasks
Defined in: activerecord/lib/active_record/tasks/sqlite_database_tasks.rb

Class Attribute Summary

AbstractTasks - Inherited

.using_database_configurations?

Class Method Summary

AbstractTasks - Inherited

.new

Instance Attribute Summary

AbstractTasks - Inherited

#configuration_hash, #db_config

Instance Method Summary

AbstractTasks - Inherited

#charset, #check_current_protected_environment!, #collation, #configuration_hash_without_database, #connection, #establish_connection, #run_cmd, #run_cmd_error, #with_temporary_pool

Constructor Details

.new(db_config, root = ActiveRecord::Tasks::DatabaseTasks.root) ⇒ SQLiteDatabaseTasks

[ GitHub ] 

  


# File 'activerecord/lib/active_record/tasks/sqlite_database_tasks.rb', line 6



def initialize(db_config, root = ActiveRecord::Tasks::DatabaseTasks.root)
  @db_config = db_config
  @root = root
end


  







Instance Attribute Details



  

    #root   (readonly, private)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/tasks/sqlite_database_tasks.rb', line 69



attr_reader :root


  







Instance Method Details



  

    #check_current_protected_environment!(db_config, migration_class)  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/tasks/sqlite_database_tasks.rb', line 58



def check_current_protected_environment!(db_config, migration_class)
  super
rescue ActiveRecord::StatementInvalid => e
  case e.cause
  when SQLite3::ReadOnlyException
  else
    raise e
  end
end


  








  

    #create  
  



  

    
  





  
Raises:





  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/tasks/sqlite_database_tasks.rb', line 11



def create
  raise DatabaseAlreadyExists if File.exist?(db_config.database)

  establish_connection
  connection
end


  








  

    #drop  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/tasks/sqlite_database_tasks.rb', line 18



def drop
  db_path = db_config.database
  file = File.absolute_path?(db_path) ? db_path : File.join(root, db_path)
  FileUtils.rm(file)
  FileUtils.rm_f(["#{file}-shm", "#{file}-wal"])
rescue Errno::ENOENT => error
  raise NoDatabaseError.new(error.message)
end


  








  

    #establish_connection(config = db_config)   (private)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/tasks/sqlite_database_tasks.rb', line 71



def establish_connection(config = db_config)
  ActiveRecord::Base.establish_connection(config)
  connection.connect!
end


  








  

    #purge  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/tasks/sqlite_database_tasks.rb', line 27



def purge
  connection.disconnect!
  drop
rescue NoDatabaseError
ensure
  create
  connection.reconnect!
end


  








  

    #structure_dump(filename, extra_flags)  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/tasks/sqlite_database_tasks.rb', line 36



def structure_dump(filename, extra_flags)
  args = []
  args.concat(Array(extra_flags)) if extra_flags
  args << db_config.database

  ignore_tables = ActiveRecord::SchemaDumper.ignore_tables
  if ignore_tables.any?
    ignore_tables = connection.data_sources.select { |table| ignore_tables.any? { |pattern| pattern === table } }
    condition = ignore_tables.map { |table| connection.quote(table) }.join(", ")
    args << "SELECT sql || ';' FROM sqlite_master WHERE tbl_name NOT IN (#{condition}) ORDER BY tbl_name, type DESC, name"
  else
    args << ".schema --nosys"
  end

  run_cmd("sqlite3", *args, out: filename)
end


  








  

    #structure_load(filename, extra_flags)  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/tasks/sqlite_database_tasks.rb', line 53



def structure_load(filename, extra_flags)
  flags = extra_flags.join(" ") if extra_flags
  `sqlite3 #{flags} #{db_config.database} < "#{filename}"`
end