Class: ActiveGraph::Migration::AddIdProperty

Inherits:
ActiveGraph::Migration show all
Includes:
ActiveGraph::Migrations::Helpers::IdProperty
Defined in:
lib/active_graph/migration.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from ActiveGraph::Migrations::Helpers::IdProperty

#populate_id_property

Methods inherited from ActiveGraph::Migration

#default_path, #joined_path, #output, #print_output

Constructor Details

#initialize(path = default_path) ⇒ AddIdProperty

Returns a new instance of AddIdProperty.



36
37
38
 
# File 'lib/active_graph/migration.rb', line 36

def initialize(path = default_path)
  @models_filename = File.join(joined_path(path), 'add_id_property.yml')
end

Instance Attribute Details

#models_filename ⇒ Object (readonly)

Returns the value of attribute models_filename.



34
35
36
 
# File 'lib/active_graph/migration.rb', line 34

def models_filename
  @models_filename
end

Instance Method Details

#execute(*args) ⇒ Object 



58
59
60
 
# File 'lib/active_graph/migration.rb', line 58

def execute(*args)
  Base.query(*args)
end

#migrate ⇒ Object 



40
41
42
43
44
45
46
47
48
49
50
51
52
 
# File 'lib/active_graph/migration.rb', line 40

def migrate
  ActiveSupport::Deprecation.warn '`AddIdProperty` task is deprecated and may be removed from future releases. '\
                                  'Create a new migration and use the `populate_id_property` helper.', caller
  models = ActiveSupport::HashWithIndifferentAccess.new(YAML.load_file(models_filename))[:models]
  output 'This task will add an ID Property every node in the given file.'
  output 'It may take a significant amount of time, please be patient.'
  models.each do |model|
    output
    output
    output "Adding IDs to #{model}"
    populate_id_property model
  end
end

#query(*args) ⇒ Object 



54
55
56
 
# File 'lib/active_graph/migration.rb', line 54

def query(*args)
  Base.magic_query(*args)
end

#setup ⇒ Object 



62
63
64
65
66
67
68
69
70
71
72
73
74
 
# File 'lib/active_graph/migration.rb', line 62

def setup
  super
  return if File.file?(models_filename)

  File.open(models_filename, 'w') do |file|
    message = <<MESSAGE
# Provide models to which IDs should be added.
# # It will only modify nodes that do not have IDs. There is no danger of overwriting data.
# # models: [Student,Lesson,Teacher,Exam]\nmodels: []
MESSAGE
    file.write(message)
  end
end