Class: Squongo::Connection

Inherits:
Object
  • Object
show all
Defined in:
lib/squongo/connection.rb

Constant Summary collapse

WAL_QUERY = 
'PRAGMA journal_mode=WAL;'

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path) ⇒ Connection

Returns a new instance of Connection.



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# File 'lib/squongo/connection.rb', line 10

def initialize(path)
  @path = path
  @db = SQLite3::Database.open(path)
  ensure_mode
end

Instance Attribute Details

#db ⇒ Object (readonly)

Returns the value of attribute db.



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# File 'lib/squongo/connection.rb', line 8

def db
  @db
end

#path ⇒ Object (readonly)

Returns the value of attribute path.



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# File 'lib/squongo/connection.rb', line 8

def path
  @path
end

Class Method Details

.connect(path) ⇒ Object 



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# File 'lib/squongo/connection.rb', line 20

def self.connect(path)
  self.new(path)
end

Instance Method Details

#ensure_mode ⇒ Object 



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# File 'lib/squongo/connection.rb', line 24

def ensure_mode
  return unless first_connection
  wal_mode
end

#first_connection ⇒ Object 



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# File 'lib/squongo/connection.rb', line 33

def first_connection
  !(File.exist?(path))
end

#reconnect ⇒ Object 



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# File 'lib/squongo/connection.rb', line 16

def reconnect
  @db = SQLite3::Database.open(path)
end

#wal_mode ⇒ Object 



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# File 'lib/squongo/connection.rb', line 29

def wal_mode
  @db.execute WAL_QUERY
end