Module: MotionDataWrapper::Model::Persistence

Included in:
MotionDataWrapper::Model
Defined in:
lib/motion_data_wrapper/model/persistence.rb

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



5
6
7
 
# File 'lib/motion_data_wrapper/model/persistence.rb', line 5

def self.included(base)
  base.extend(ClassMethods)
end

Instance Method Details

#destroy ⇒ Object 



36
37
38
39
40
41
42
43
44
45
46
 
# File 'lib/motion_data_wrapper/model/persistence.rb', line 36

def destroy

  if context = managedObjectContext
    context.deleteObject(self)
    error = Pointer.new(:object)
    context.save(error)
  end

  @destroyed = true
  freeze
end

#destroyed? ⇒ Boolean

Returns:

  • (Boolean) 


48
49
50
 
# File 'lib/motion_data_wrapper/model/persistence.rb', line 48

def destroyed?
  @destroyed || false
end

#new_record? ⇒ Boolean

Returns:

  • (Boolean) 


52
53
54
 
# File 'lib/motion_data_wrapper/model/persistence.rb', line 52

def new_record?
  @new_record || false
end

#persisted? ⇒ Boolean

Returns:

  • (Boolean) 


56
57
58
 
# File 'lib/motion_data_wrapper/model/persistence.rb', line 56

def persisted?
  !(new_record? || destroyed?)
end

#save ⇒ Object 



60
61
62
63
64
65
66
67
 
# File 'lib/motion_data_wrapper/model/persistence.rb', line 60

def save
  begin
    save!
  rescue MotionDataWrapper::RecordNotSaved
    return false
  end
  true
end

#save! ⇒ Object 



69
70
71
72
73
74
75
76
77
78
79
80
81
 
# File 'lib/motion_data_wrapper/model/persistence.rb', line 69

def save!        
  unless context = managedObjectContext
    context = App.delegate.managedObjectContext
    context.insertObject(self)
  end

  error = Pointer.new(:object)
  unless context.save(error)
    managedObjectContext.deleteObject(self)
    raise MotionDataWrapper::RecordNotSaved, self and return false
  end
  true
end