Class: Picky::Backends::SQLite

Inherits:
Backend show all
Defined in:
lib/picky/backends/sqlite.rb,
lib/picky/backends/sqlite/array.rb,
lib/picky/backends/sqlite/basic.rb,
lib/picky/backends/sqlite/value.rb,
lib/picky/backends/sqlite/string_key_array.rb,
lib/picky/backends/sqlite/integer_key_array.rb,
lib/picky/backends/sqlite/directly_manipulable.rb

Defined Under Namespace

Modules: DirectlyManipulable Classes: Array, Basic, IntegerKeyArray, StringKeyArray, Value

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Backend

#ids, #to_s

Constructor Details

#initialize(options = {}) ⇒ SQLite

Returns a new instance of SQLite.



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# File 'lib/picky/backends/sqlite.rb', line 9

def initialize options = {}
  @realtime = options[:realtime]

  require 'sqlite3'
rescue LoadError => e
  warn_gem_missing 'sqlite3', 'SQLite bindings'
end

Instance Attribute Details

#realtime ⇒ Object (readonly)

Returns the value of attribute realtime.



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# File 'lib/picky/backends/sqlite.rb', line 7

def realtime
  @realtime
end

Instance Method Details

#create_configuration(bundle, _ = nil) ⇒ Object

Returns an object that on #initial, #load returns an object that responds to:

[:key] # => value (a value for this config key)



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# File 'lib/picky/backends/sqlite.rb', line 38

def create_configuration bundle, _ = nil
  Value.new bundle.index_path(:configuration), realtime: realtime
end

#create_inverted(bundle, _ = nil) ⇒ Object

Returns an object that on #initial, #load returns an object that responds to:

[:token] # => [id, id, id, id, id] (an array of ids)



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# File 'lib/picky/backends/sqlite.rb', line 20

def create_inverted bundle, _ = nil
  StringKeyArray.new bundle.index_path(:inverted), realtime: realtime
end

#create_realtime(bundle, _ = nil) ⇒ Object

Returns an object that on #initial, #load returns an object that responds to:

[id] # => [:sym1, :sym2]



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# File 'lib/picky/backends/sqlite.rb', line 44

def create_realtime bundle, _ = nil
  IntegerKeyArray.new bundle.index_path(:realtime), realtime: realtime
end

#create_similarity(bundle, _ = nil) ⇒ Object

Returns an object that on #initial, #load returns an object that responds to:

[:encoded] # => [:original, :original] (an array of original symbols this similarity encoded thing maps to)



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# File 'lib/picky/backends/sqlite.rb', line 32

def create_similarity bundle, _ = nil
  StringKeyArray.new bundle.index_path(:similarity), realtime: realtime
end

#create_weights(bundle, _ = nil) ⇒ Object

Returns an object that on #initial, #load returns an object that responds to:

[:token] # => 1.23 (a weight)



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# File 'lib/picky/backends/sqlite.rb', line 26

def create_weights bundle, _ = nil
  Value.new bundle.index_path(:weights), realtime: realtime
end