Module: DatabaseDetector

Extended by:
MemoWise
Defined in:
app/lib/database_detector.rb

Class Method Summary collapse

Class Method Details

.is_mariadb? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/lib/database_detector.rb', line 28

def is_mariadb?
  is_mysql?
end

.is_mysql? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/lib/database_detector.rb', line 23

def is_mysql?
  server == :mysql
end

.is_postgres? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/lib/database_detector.rb', line 33

def is_postgres?
  server == :postgresql
end

.is_sqlite? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/lib/database_detector.rb', line 38

def is_sqlite?
  server == :sqlite
end

.server ⇒ Object 



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# File 'app/lib/database_detector.rb', line 5

def server
  ActiveRecord::Base.with_connection do |connection|
    case connection.adapter_name
    when "PostgreSQL"
      :postgresql
    when "Mysql2"
      :mysql
    when "SQLite"
      :sqlite
    when "NullDB"
      :null
    else
      raise NotImplementedError.new("Unknown database adapter #{connection.adapter_name}")
    end
  end
end

.table_ready?(table_name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/lib/database_detector.rb', line 43

def table_ready?(table_name)
  ActiveRecord::Base.with_connection do |connection|
    connection.data_source_exists? table_name
  end
end