Class: BagType

Inherits:
Object
  • Object
show all
Defined in:
lib/ObjectModel/Types/BagType.rb

Class Method Summary collapse

Class Method Details

.delete(e, m, storage) ⇒ Object 



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# File 'lib/ObjectModel/Types/BagType.rb', line 59

def delete e, m, storage    
  storage[:bags].filter(:entity_id => e.entity_id).delete
end

.delete_all_children(e, m) ⇒ Object 



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# File 'lib/ObjectModel/Types/BagType.rb', line 63

def delete_all_children e, m
  bag = e.send m.name      
  bag.every.delete
end

.delete_all_references_to(referrer, e, m) ⇒ Object 



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# File 'lib/ObjectModel/Types/BagType.rb', line 68

def delete_all_references_to referrer, e, m     
  bag = referrer.send m.name
  bag.delete e
end

.delete_from_parent(e, parent, m) ⇒ Object 



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# File 'lib/ObjectModel/Types/BagType.rb', line 73

def delete_from_parent e, parent, m
  bag = parent.send m.name
  bag.delete e
end

.each(e, m, &b) ⇒ Object 



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# File 'lib/ObjectModel/Types/BagType.rb', line 78

def each e, m, &b
  bag = e.send m.name
  bag.each &b
end

.initial_value(m, e) ⇒ Object 



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# File 'lib/ObjectModel/Types/BagType.rb', line 3

def initial_value m, e
  calculate_class(m).new e, m.name, e.om_repository
#     e.instance_variable_set m.ivname, bag
end

.initialize_copy(m, e, c) ⇒ Object 



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# File 'lib/ObjectModel/Types/BagType.rb', line 8

def initialize_copy m, e, c
  bag = e.instance_variable_get m.ivname
  bag_copy = AnEntity::BagCopy.new bag._array
  c[m.ivname] = bag_copy
end

.initialize_storage(db) ⇒ Object 



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# File 'lib/ObjectModel/Types/BagType.rb', line 14

def initialize_storage db     
  db.create_table :bags do
    column :entity_id, :text
    column :name, :text 
    column :reference_id, :text 
#       index :entity_id
  end
end

.load(m, e, storage) ⇒ Object 



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# File 'lib/ObjectModel/Types/BagType.rb', line 29

def load m, e, storage    
  rows = storage[:bags].filter :entity_id => e.entity_id, :name => m.name.to_s
  bag = calculate_class(m).new e, m.name, e.om_repository
  rows.each do |row|
    value = AnEntity::EntityType.load_id row[:reference_id]       
    bag._array << value
  end
  e.instance_variable_set m.ivname, bag
end

.persist(c, entity_id, m, storage) ⇒ Object 



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# File 'lib/ObjectModel/Types/BagType.rb', line 45

def persist c, entity_id, m, storage    
  # TODO reimplement more efficiently
  sname = m.name.to_s
  storage[:bags].filter(:entity_id => entity_id, :name => sname).delete
  c[m.ivname]._array.each do |ref_id|    
    ref_id.should_not! :be_nil
    storage[:bags].insert(
                          :entity_id => entity_id, 
                          :name => sname,
                          :reference_id => AnEntity::EntityType.dump_id(ref_id)
    )
  end                
end

.print_storage(db, name) ⇒ Object 



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# File 'lib/ObjectModel/Types/BagType.rb', line 23

def print_storage db, name
  return unless name == nil or name == :bags
  puts "\nBags:"
  db[:bags].print
end

.write_back(c, e, m) ⇒ Object 



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# File 'lib/ObjectModel/Types/BagType.rb', line 39

def write_back c, e, m        
  bag_copy = c[m.ivname]
  bag = e.instance_variable_get m.ivname
  bag._array.replace bag_copy._array # TODO reimplement more efficiently
end