Class: SdbDal::DomainObject

Inherits:
Object
  • Object
show all
Defined in:
lib/sdb_dal/domain_object.rb

Constant Summary collapse

@@is_encrypted = 
false
@@items_to_commit = 
nil
@@transaction_depth = 
0

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ DomainObject

Returns a new instance of DomainObject.



14
15
16
17
18
19
20
21
 
# File 'lib/sdb_dal/domain_object.rb', line 14

def initialize(options={})
  @attribute_values=HashWithIndifferentAccess.new

  copy_attributes(options)
 
  @accessor_cache={}
  
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_symbol, *arguments) ⇒ Object

:nodoc:



560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
 
# File 'lib/sdb_dal/domain_object.rb', line 560

def method_missing(method_symbol, *arguments) #:nodoc:
  method_name = method_symbol.to_s

  case method_name.last
  when "="
    if @attribute_values.has_key?(method_name.first(-1))
      @attribute_values[method_name.first(-1)] = arguments.first
    else
      super
    end
  when "?"
    @attribute_values[method_name.first(-1)]
  else
    @attribute_values.has_key?(method_name) ? @attribute_values[method_name] : super
  end
end

Instance Attribute Details

#sdb_key ⇒ Object

Returns the value of attribute sdb_key.



13
14
15
 
# File 'lib/sdb_dal/domain_object.rb', line 13

def sdb_key
  @sdb_key
end

Class Method Details

.arrayify(x) ⇒ Object 



794
795
796
797
798
799
800
 
# File 'lib/sdb_dal/domain_object.rb', line 794

def arrayify(x)
  unless x.is_a?(Array)
    x=[x]
  end
  return x

end

.AttributeDescription(name) ⇒ Object

end



530
531
532
 
# File 'lib/sdb_dal/domain_object.rb', line 530

def self.AttributeDescription(name)
  return attribute_descriptions[name]
end

.belongs_to(domain_class, foreign_key_attribute = nil, accesser_attribute_name = nil, options = {}) ⇒ Object 



288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
 
# File 'lib/sdb_dal/domain_object.rb', line 288

def self.belongs_to(domain_class,foreign_key_attribute=nil,accesser_attribute_name=nil,options={})




  foreign_key_attribute ||= "#{domain_class.to_s.downcase}_id".to_sym
  accesser_attribute_name ||=domain_class.to_s.downcase
  if foreign_key_attribute==:without_prefix
    # #send all attributes and let the other class figure it out}

    class_eval <<-GETTERDONE
    def #{accesser_attribute_name}

		#{module_name+domain_class.to_s}.find(@attribute_values)
	end
    GETTERDONE

  
  elsif foreign_key_attribute==:with_prefix
    # #the column names that start with the name of the other class are the
    # fkeys
    fkeys=[]
    self.class.attribute_descriptions.each do |attribute_name,description|
      if attribute_name.index(domain_class.to_s.downcase)==0
        fkeys<<attribute_name
        fkey_names<<attribute_name.to_s
      end
    end
    index(fkey_names.join("_"),keys)

    class_eval <<-GETTERDONE
	def #{accesser_attribute_name}
  mapped_values={}
  prefix='#{domain_class.to_s.downcase}'
  ['#{fkey_names.join("','")}'].each |key|
          mapped_values[key.splice(prefix.length)]=@attribute_values[key]
  end
  #{module_name+domain_class.to_s}.find(mapped_values)

	end
    GETTERDONE
  else
    class_eval <<-GETTERDONE
	def #{accesser_attribute_name}
#{module_name+domain_class.to_s}.find(self.#{foreign_key_attribute})
	end
    GETTERDONE
    index("#{foreign_key_attribute}_index".to_sym,[foreign_key_attribute])
  end

end

.ColumnDescription(name) ⇒ Object 



533
534
535
 
# File 'lib/sdb_dal/domain_object.rb', line 533

def self.ColumnDescription(name)
  return column_descriptions[name]
end

.data_attribute(name, type, options = {}) ⇒ Object 



143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
 
# File 'lib/sdb_dal/domain_object.rb', line 143

def self.data_attribute(name,type,options={})
  class_eval <<-GETTERDONE
@@attribute_descriptions||=HashWithIndifferentAccess.new 

@@non_clob_attribute_names||=[]
@@clob_attribute_names||=[]
@@on_destroy_blocks||=[]
def self.on_destroy_blocks
  @@on_destroy_blocks || []
end
 def self.attribute_descriptions
  @@attribute_descriptions
end

def self.non_clob_attribute_names
  @@non_clob_attribute_names
end
def self.clob_attribute_names
  @@clob_attribute_names
end
def is_dirty(attribute_name)
         if @attribute_values[attribute_name]!= nil && 
            @attribute_values[attribute_name].respond_to?(:value)
            return @attribute_values[attribute_name].is_dirty
        else
            return true
        end
end
  GETTERDONE
  return if self.attribute_descriptions.has_key?(name)
  
  attribute_description=DomainAttributeDescription.new(name,type,self.is_encrypted?,options)
  self.attribute_descriptions[name] = attribute_description
  @primary_key_attribute_names||=[]
  if attribute_description.is_primary_key 
    @primary_key_attribute_names<<name
    pk_code="[:#{@primary_key_attribute_names.join(",:")}]"
    class_eval <<-GETTERDONE
   def self.primary_key_attribute_names
        #{pk_code}
   end
  def self.exists?(primary_key)
        return self.find(primary_key)!=nil
   end
    
    GETTERDONE
  end
  if attribute_description.value_type==:clob
    clob_attribute_names<<attribute_description.name
  else
    non_clob_attribute_names<<attribute_description.name
  end

  scope=":all"
  if(options[:unique] && options[:unique]==true)
    scope=":first"
  end
  if type==:reference_set
    

    class_eval <<-GETTERDONE
    def #{attribute_description.name}
          result=@attribute_values[:#{attribute_description.name}] || []
          result=result.sort_by{|item|item.index}
      
	end
    def add_to_#{attribute_description.name}(item,index=-1)
		@attribute_values[:#{attribute_description.name}] ||=[]
            @attribute_values[:#{attribute_description.name}] <<SdbDal::Reference.new(:target=> item ,:index=>index)
	end
    def remove_from_#{attribute_description.name}(item)
		@attribute_values[:#{attribute_description.name}] ||=[]
            @attribute_values.each do |reference|
                  if reference.targets?(item)
                    @attribute_values.remove(reference)
                    return
                  end
            end
	end
    
    GETTERDONE

  elsif type==:clob
    class_eval <<-GETTERDONE
     
    def #{attribute_description.name}
        if @attribute_values[:#{attribute_description.name}]!= nil && 
                        @attribute_values[:#{attribute_description.name}].respond_to?(:value)
		return @attribute_values[:#{attribute_description.name}].value 
        else
            return @attribute_values[:#{attribute_description.name}] 
        end
	end
    
    GETTERDONE
  else
 
    class_eval <<-GETTERDONE
    def #{attribute_description.name}
		return @attribute_values[:#{attribute_description.name}] 
	end
   
    GETTERDONE
  end
  class_eval <<-GETTERDONE

	 def #{attribute_description.name}=(xvalue)
            @attribute_values[:#{attribute_description.name}] =xvalue
	end
	def #{attribute_description.name}?
		return @attribute_values[:#{attribute_description.name}] 
	end
	
	def self.find_by_#{attribute_description.name}(#{attribute_description.name.to_s.downcase},options={})
      options[:params]={:#{attribute_description.name}=>#{attribute_description.name.to_s.downcase}}
           find(#{scope},options)
	end
  GETTERDONE

  if options.has_key?(:enum)
    attribute_name=attribute_description.name.to_s
    x=""
    enum_val=1
     options[:enum].each { |enum|
       x<<"#{enum.to_s.upcase} = #{enum_val}\n"
       enum_val+=1
    class_eval <<-GETTERDONE
    def  is_#{attribute_name}_#{enum.to_s.downcase}?
      #{attribute_name} == #{attribute_name.capitalize}::#{enum.to_s.upcase}
    end
   GETTERDONE

     }
    class_eval <<-GETTERDONE
    class #{attribute_name.capitalize}
      #{x}
    end
   GETTERDONE


  end


end

.encrypt_me ⇒ Object 



138
139
140
141
142
 
# File 'lib/sdb_dal/domain_object.rb', line 138

def self.encrypt_me
  class_eval <<-GETTERDONE
     @@is_encrypted=true
  GETTERDONE
end

.find(*arguments) ⇒ Object 



746
747
748
749
750
751
752
753
754
755
 
# File 'lib/sdb_dal/domain_object.rb', line 746

def find(*arguments)
  scope   = arguments.slice!(0)
  options = arguments.slice!(0) || {}
  
  case scope
  when :all   then return find_every(options)
  when :first then return find_one(options)
  else             return find_single(scope, options)
  end
end

.find_by_index(values, more_options) ⇒ Object 



728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
 
# File 'lib/sdb_dal/domain_object.rb', line 728

def find_by_index(values,more_options)
  index_descriptions.each do |name,desc|
    if desc.keys_match?(values)
      options={}
      options[:params]={desc.name=>desc.format_index_entry(self.attribute_descriptions,values)}
      options[:index]=desc.name
      options[:index_value]=desc.format_index_entry(self.attribute_descriptions,values)
      options.merge!(more_options)
      return find(:all,options)
    end
  end
  options={}

  options[:params]={}
  options.merge!(more_options)
  values.each{|key,value|options[:params][key]=value}
  return find_every(options)
end

.find_every(options) ⇒ Object 



760
761
762
763
764
765
766
767
768
769
770
 
# File 'lib/sdb_dal/domain_object.rb', line 760

def find_every(options)

  results=[]
  untyped_results=self.repository.query(self.table_name,attribute_descriptions,options)
  untyped_results.each do |item_attributes|

    results<<istantiate(item_attributes,self.repository(options))
  end
  return results

end

.find_list(primary_keys, options = {}) ⇒ Object 



771
772
773
774
775
776
777
778
 
# File 'lib/sdb_dal/domain_object.rb', line 771

def find_list(primary_keys,options={})
  result=[]
  primary_keys.each do |key|
    item=find_single(key,options)
    result<<item if item
  end
  return result
end

.find_one(options) ⇒ Object 



756
757
758
759
 
# File 'lib/sdb_dal/domain_object.rb', line 756

def find_one(options)
  options[:limit]=1
  find_every(options).first
end

.find_recent_with_exponential_expansion(time_column, how_many, options = {}) ⇒ Object 



821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
 
# File 'lib/sdb_dal/domain_object.rb', line 821

def find_recent_with_exponential_expansion(time_column,how_many,options={})
  found=[]
  tries=0
  timespan=options[:timespan_hint] || 60*60*4

  params = options[:params] || {}

  while found.length<how_many && tries<4
    time=Time.now.gmtime-timespan
    params[time_column]  =AttributeRange.new(:greater_than=>time)
    found= find(:all,:limit=>how_many,:order=>:descending,:order_by => time_column,
      :params=>params)
  
    tries=tries+1
    timespan=timespan*3
  end
  return found
    
end

.find_single(id, options) ⇒ Object 



801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
 
# File 'lib/sdb_dal/domain_object.rb', line 801

def find_single(id, options)
  return nil if id==nil
  if id.is_a?(Hash)
    id_as_array=[]
    @primary_key_attribute_names.each do |key_name|
      id_as_array << id[key_name]
    end
    id=id_as_array
  end
  id=arrayify(id)
  attributes=self.repository(options).find_one(self.table_name,id,attribute_descriptions)
  if attributes && attributes.length>0
    @primary_key_attribute_names.each do |key_name|
      attributes[key_name]=id.shift
    end
    attributes[:repository]=self.repository(options)
    return istantiate(attributes,self.repository(options))
  end
  return nil
end

.has_many(domain_class, reflecting_key_attributes = nil, accesser_attribute_name = nil, options = {}) ⇒ Object 



448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
 
# File 'lib/sdb_dal/domain_object.rb', line 448

def self.has_many(domain_class,
    reflecting_key_attributes=nil,
    accesser_attribute_name=nil,
    options={})
  if reflecting_key_attributes==:without_prefix
    reflecting_key_attributes = primary_key_attribute_names.map{|x|x.to_s}

  end
  reflecting_key_attributes ||= primary_key_attribute_names.map{|x|self.name.downcase+"_"+x.to_s}
  reflecting_key_attributes =arrayify(reflecting_key_attributes)
  reflecting_array_code="[:"+reflecting_key_attributes.join(",:")+"]"

  accesser_attribute_name ||=domain_class.to_s.downcase+'s'
  order=""
  if options[:order_by]
    order="{:order_by=>:#{options[:order_by]}"
  end
  if options[:order]
    if order.length>0
      order << ","
    else
      order<<"{"
    end
    order<<":order=>:#{options[:order]}"
  end
  if order.length==0
    order << "{}"
  else
    order<<"}"
  end


  if options[:dependent]
    
    class_eval <<-XXDONE
      
        on_destroy_blocks<<"#{accesser_attribute_name}.each{|item|item.destroy}"
    XXDONE
  end
  class_eval <<-XXDONE
  def create_child_#{domain_class.to_s.downcase}(options=nil)

    result=#{module_name+domain_class.to_s}.new(options)
    result.copy_attributes(self.primary_key_hash)
    result
  end
  XXDONE
  #  if options[:tracking]
  #    #add add_xxx method
  #    #add to list of tracker attributes
  #
  #      class_eval <<-XXDONE
  #
  #    @@attribute_descriptions[ :#{accesser_attribute_name}_tracker]=TrackerDescription.new(:#{accesser_attribute_name}_tracker,:#{domain_class},:#{reflecting_key_attribute})
  # # def #{accesser_attribute_name} # 	find_tracked_list(:#{accesser_attribute_name}_tracker,#{domain_class},:#{reflecting_key_attribute})
  # # end
  #        def add_to_#{accesser_attribute_name}(item)
  # # 	item.save!
  #                add_to_tracked_list(:#{accesser_attribute_name}_tracker,#{domain_class.to_s},:#{reflecting_key_attribute},item.primary_key)
  #                item.set_attribute(:#{reflecting_key_attribute},self.primary_key)
  #
  #
  # # end
  #    XXDONE
  #  else
  class_eval <<-XXDONE
	def #{accesser_attribute_name}

        if !@accessor_cache.has_key? :#{accesser_attribute_name}
          h={}
          pkey=DomainObject::arrayify(self.primary_key)
          #{reflecting_array_code}.each do |key|
            h[key]=pkey.shift
          end
          result= #{module_name+domain_class.to_s}.find_by_index(h,#{order})
            @accessor_cache[:#{accesser_attribute_name}]=result || []
        end
        return @accessor_cache[:#{accesser_attribute_name}] 
	end
  XXDONE
  # end
end

.index(index_name, columns, options = {}) ⇒ Object 



67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
 
# File 'lib/sdb_dal/domain_object.rb', line 67

def self.index(index_name,columns,options={})
  @index_descriptions||={}
  return if self.index_descriptions[index_name]
  $columns_xxx=columns
  class_eval <<-GETTERDONE

  unless @index_descriptions.has_key?(:#{index_name})
  @index_names||=[]
  @index_names<<:#{index_name}

def self.index_names
    @index_names
end

attribute_description=SdbDal::DomainAttributeDescription.new(:#{index_name},:string,{})
@index_descriptions[:#{index_name}]=SdbDal::IndexDescription.new(:#{index_name},$columns_xxx,self.is_encrypted?)
   end
  GETTERDONE
 
  getter_params=[]
  finder_code=""
 
  params=[]
  columns.each do |column|
    if column.respond_to?(:transform)
      finder_code<<"h[:#{column.name}]=#{column.name.to_s.downcase}\n"
      getter_params<<"@attribute_values[:#{column.source_column}]"
   
      params<<"#{column.name.to_s.downcase}"
    else
      finder_code<<"h[:#{column}]=#{column.to_s.downcase}\n"
      getter_params<<"@attribute_values[:#{column}]"
      params<<"#{column.to_s.downcase}"
   
    end
   
  end
  find_scope=":all"
  if options[:unique]
    find_scope=":first"
  end
  class_eval <<-GETTERDONE
    def #{index_name}              
        return	self.class.calculate_#{index_name}(#{getter_params.join(",")})
    end

   def self.calculate_#{index_name}(#{params.join(",")})
        index_description=index_descriptions[:#{index_name}]
        h={}
        #{finder_code}
        index_description.format_index_entry(@@attribute_descriptions,h)
  end
  def self.find_by_#{index_name}(#{params.join(",")},options={})
      options[:params]={:#{index_name}=>self.calculate_#{index_name}(#{params.join(",")})}
      options[:index]=:#{index_name}
      options[:index_value]=self.calculate_#{index_name}(#{params.join(",")})
       find(#{find_scope},options)
  end
  GETTERDONE
end

.index_descriptions ⇒ Object 



131
132
133
 
# File 'lib/sdb_dal/domain_object.rb', line 131

def self.index_descriptions
  @index_descriptions || {}
end

.index_names ⇒ Object 



63
64
65
 
# File 'lib/sdb_dal/domain_object.rb', line 63

def self.index_names
  []
end

.is_encrypted? ⇒ Boolean

Returns:

  • (Boolean) 


135
136
137
 
# File 'lib/sdb_dal/domain_object.rb', line 135

def self.is_encrypted?
  return @@is_encrypted || false
end

.istantiate(sdb_attributes, repository) ⇒ Object 



782
783
784
785
786
787
788
789
790
791
792
793
 
# File 'lib/sdb_dal/domain_object.rb', line 782

def istantiate(sdb_attributes,repository)
  this_result=new(sdb_attributes||{})
  get_clob_proc=nil
  clob_attribute_names.each do |clob_attribute_name|
    get_clob_proc= proc {
      repository.get_clob(self.table_name,this_result.primary_key,clob_attribute_name)
    }
            
    this_result.set_attribute(clob_attribute_name, LazyLoadingText.new(get_clob_proc))
  end
  this_result
end

.many_to_many(domain_class, through_class, reflecting_key_attributes = nil, foriegn_key_attribute = nil, accesser_attribute_name = nil, options = {}) ⇒ Object 



339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
 
# File 'lib/sdb_dal/domain_object.rb', line 339

def self.many_to_many(domain_class,
    through_class,
    reflecting_key_attributes=nil,
    foriegn_key_attribute=nil,
    accesser_attribute_name=nil,
    options={})
  reflecting_key_attributes ||= primary_key_attribute_names.map{|x|self.name+"_"+x.to_s}
  reflecting_key_attributes =arrayify(reflecting_key_attributes)
  reflecting_array_code="[:"+reflecting_key_attributes.join(",:")+"]"

  accesser_attribute_name ||=domain_class.to_s.downcase+'s'
  order=""
  if options[:order_by]
    if options[:order]
      order="result=DomainObject.sort_result(result,:#{options[:order_by]},:#{options[:order]})"
    else
      order="result=DomainObject.sort_result(result,:#{options[:order_by]},:ascending)"
    end
  end
   
   
  foriegn_key_attributes=options[:foriegn_key_attribute] || "#{domain_class.to_s.downcase}_id".to_sym
  foriegn_key_attributes=arrayify(foriegn_key_attributes)
  fkey_array_code="[:"+foriegn_key_attributes.join(",:")+"]"
  class_eval <<-XXDONE

	def #{accesser_attribute_name}
        #unless @accessor_cache.has_key? :#{accesser_attribute_name}
  		through_results= #{module_name+through_class.to_s}.find(:all,:map=>{:keys=>#{reflecting_array_code},:values=>DomainObject.arrayify(self.primary_key)})
            result=[]
            through_results.each do |through_result|
              item= #{module_name+domain_class.to_s}.find(through_result.#{foriegn_key_attribute}) 
              result<< item if item
            end
            #{order}
            
          #  @accessor_cache[:#{accesser_attribute_name}]=result
            return result
        #end
        #return @accessor_cache[:#{accesser_attribute_name}]
        
	end
    def connect_#{domain_class.to_s.downcase}(#{domain_class.to_s.downcase})
        connector=#{module_name+through_class.to_s}.new
        connector.set_map(#{fkey_array_code},DomainObject.arrayify(#{domain_class.to_s.downcase}.primary_key))
        connector.set_map(#{reflecting_array_code},DomainObject.arrayify(self.primary_key))
        connector.save
    end
  XXDONE
   
   
end

.module_name ⇒ Object 



842
843
844
845
846
 
# File 'lib/sdb_dal/domain_object.rb', line 842

def self.module_name
  result=""
  result=self.name.slice(0, self.name.rindex(":")+1) if self.name.rindex(":")
  result
end

.primary_key_attribute_names ⇒ Object 



43
44
45
 
# File 'lib/sdb_dal/domain_object.rb', line 43

def self.primary_key_attribute_names
  return @primary_key_attribute_names
end

.query_ids(options = {}) ⇒ Object 



779
780
781
 
# File 'lib/sdb_dal/domain_object.rb', line 779

def query_ids(options={})
  self.repository.query_ids(self.table_name,attribute_descriptions,options)
end

.repository(options = {}) ⇒ Object 



719
720
721
722
723
724
725
726
727
 
# File 'lib/sdb_dal/domain_object.rb', line 719

def repository(options={})
    
  if options.has_key?(:repository)
    return options[:repository]
  end

  return RepositoryFactory.instance(options)
    
end

.sort_result(results, sort_by, order = :ascending) ⇒ Object 



415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
 
# File 'lib/sdb_dal/domain_object.rb', line 415

def DomainObject.sort_result(results,sort_by,order=:ascending)
  non_null_results=[]
  null_results=[]
  results.each { |i|
    sorter_value=i.get_attribute(sort_by)
    if sorter_value
      non_null_results<<i
    else
      null_results<<i
    end
  }
  sorted_results=non_null_results.sort{ |a,b|
    a_val= a.get_sortable_attribute(sort_by)
    b_val= b.get_sortable_attribute(sort_by)
    
    a_val <=> b_val
  }
    
  if order!=:ascending
    sorted_results.reverse!
  end
  sorted_results.concat( null_results)
  sorted_results
end

.table_name ⇒ Object 



696
697
698
 
# File 'lib/sdb_dal/domain_object.rb', line 696

def DomainObject.table_name
  return self.name
end

.transaction ⇒ Object 



393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
 
# File 'lib/sdb_dal/domain_object.rb', line 393

def DomainObject.transaction
  @@items_to_commit||=[]
  @@transaction_depth+=1
  begin
    yield
  rescue # catch all
    raise $! # rethrow
  ensure
    @@transaction_depth-=1
  
  end


  if @@transaction_depth==0
 
    @@items_to_commit.uniq.each do |item |
      item.save!
    end
    @@items_to_commit=[]
  end

end

Instance Method Details

#add_to_tracked_list(tracking_attribute, other_class, reflecting_attribute, value) ⇒ Object 



645
646
647
648
649
650
651
652
653
654
 
# File 'lib/sdb_dal/domain_object.rb', line 645

def add_to_tracked_list(tracking_attribute,other_class,reflecting_attribute,value)
  list=@attribute_values[tracking_attribute]
  if !list
    list=other_class.query_ids(:params=>{reflecting_attribute=>self.primary_key})
  
  end
  list<<value
  @attribute_values[tracking_attribute]=list.uniq

end

#attributes ⇒ Object 



621
622
623
624
625
626
627
628
629
630
 
# File 'lib/sdb_dal/domain_object.rb', line 621

def attributes
  result={}
  # #todo refactor to avoid this copy
  self.class.attribute_descriptions.values.each do |description|
    if !description.is_clob || is_dirty(description.name)
      result[description.name]=@attribute_values[description.name]
    end
  end
  return result
end

#copy_attributes(hash) ⇒ Object 



24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
 
# File 'lib/sdb_dal/domain_object.rb', line 24

def copy_attributes(hash)
  self.class.attribute_descriptions.each do |attribute_name,description|
      if hash.has_key?(attribute_name) or hash.has_key?(attribute_name.intern)
        value=hash[attribute_name]
        value=value || hash[attribute_name.intern]
        if !description.is_collection && value.respond_to?(:flatten) && value.length==1
          value=value[0]
        end
        @attribute_values[attribute_name]=value
      else
        @attribute_values[attribute_name]=nil unless @attribute_values.has_key?(attribute_name)
      end


  end


end

#destroy(options = {}) ⇒ Object 



607
608
609
610
611
612
613
614
615
616
617
618
619
620
 
# File 'lib/sdb_dal/domain_object.rb', line 607

def destroy(options={})
  if self.class.on_destroy_blocks
    self.class.on_destroy_blocks.each do |block|
      instance_eval <<-XXDONE
                #{block}

      XXDONE

    end
  end
  if self.primary_key
    self.repository(options).destroy(self.table_name,self.primary_key)
  end
end

#find_tracked_list(tracking_attribute, other_class, reflecting_attribute) ⇒ Object 



632
633
634
635
636
637
638
639
640
641
642
643
 
# File 'lib/sdb_dal/domain_object.rb', line 632

def find_tracked_list(tracking_attribute,other_class,reflecting_attribute)
  # #if the attribute has no  value do a query
  list=@attribute_values[tracking_attribute]
  if !list
    list=other_class.query_ids(:params=>{reflecting_attribute=>self.primary_key})
    @attribute_values[tracking_attribute]=list
    self.save!
  end
  
  return other_class.find_list(list)

end

#get_attribute(name) ⇒ Object 



588
589
590
 
# File 'lib/sdb_dal/domain_object.rb', line 588

def get_attribute(name)
  @attribute_values[name]
end

#get_sortable_attribute(attr_name) ⇒ Object 



439
440
441
442
443
444
445
446
447
 
# File 'lib/sdb_dal/domain_object.rb', line 439

def get_sortable_attribute(attr_name)
  a_val= self.get_attribute(attr_name)
  return 0 unless a_val
  if a_val.class== Time
    return a_val.to_f
  else
    return a_val
  end
end

#id ⇒ Object 



48
49
50
51
 
# File 'lib/sdb_dal/domain_object.rb', line 48

def id
  return @attribute_values[:id] if self.class.attribute_descriptions[:id]
  return base.id
end

#index_values ⇒ Object 



576
577
578
579
580
581
582
583
584
 
# File 'lib/sdb_dal/domain_object.rb', line 576

def index_values
  result={}
  self.class.index_names.each do |name|
          
    result[name]=  self.send("#{name}")
   
  end
  result
end

#primary_key ⇒ Object 



536
537
538
539
540
541
542
543
544
 
# File 'lib/sdb_dal/domain_object.rb', line 536

def primary_key

  result=[]
  self.class.primary_key_attribute_names.each do |key_part|
    result<<@attribute_values[key_part ]
  end
  return result[0] if result.length==1
  return result
end

#primary_key=(value) ⇒ Object 



553
554
555
556
557
558
559
 
# File 'lib/sdb_dal/domain_object.rb', line 553

def primary_key=(value)
  key=DomainObject::arrayify(value)
  self.class.primary_key_attribute_names.each do |key_part|

    @attribute_values[ key_part]=key.shift
  end
end

#primary_key_hash ⇒ Object 



545
546
547
548
549
550
551
552
 
# File 'lib/sdb_dal/domain_object.rb', line 545

def primary_key_hash

  result={}
  self.class.primary_key_attribute_names.each do |key_part|
    result[key_part]=@attribute_values[key_part ]
  end
  return result
end

#repository(options = nil) ⇒ Object

def find

   attributes=repository.find(self.class.name,self.primary_key,@@non_clob_attribute_names,@@clob_attribute_names)
   attributes.each do |key,value|
       @attribute_values[key]=value
   end
end



706
707
708
709
710
711
712
713
714
715
716
 
# File 'lib/sdb_dal/domain_object.rb', line 706

def repository(options=nil)

  if options and options.has_key?(:repository)
    return options[:repository]
  end
  if @repository
    return @repository
  end

  return self.class.repository
end

#save(options = {}) ⇒ Object 



658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
 
# File 'lib/sdb_dal/domain_object.rb', line 658

def save(options={})
  if !self.primary_key
    self.primary_key= SdbDal::UUID.generate
  end
    
  if @@transaction_depth>0
    # #we are in a transaction.  wait to commit
    @@items_to_commit<<self
 
  else
    temp_accessor_cache=@accessor_cache
    @accessor_cache=nil
   
    #     $service.put_attributes(class_object.table_name,item.send(name_column),attributes,true)
    attributes={}
    # #todo refactor to avoid this copy
    self.class.attribute_descriptions.values.each do |description|
      if !description.is_clob || is_dirty(description.name)
        value=@attribute_values[description.name]
        attributes[description]=value
      end
   
            
       
    end
    self.index_values.each do |name,value|
  
      attributes[self.class.index_descriptions[name]]=value
    end
  
    self.repository(options).save(self.table_name,self.primary_key,attributes,self.class.index_descriptions)
    @accessor_cache=temp_accessor_cache
  end

end

#save!(options = {}) ⇒ Object 



655
656
657
 
# File 'lib/sdb_dal/domain_object.rb', line 655

def save!(options={})
  save(options)
end

#set_attribute(name, value) ⇒ Object 



585
586
587
 
# File 'lib/sdb_dal/domain_object.rb', line 585

def set_attribute(name,value)
  @attribute_values[name]=value
end

#set_map(keys, values) ⇒ Object 



52
53
54
55
56
57
58
59
60
 
# File 'lib/sdb_dal/domain_object.rb', line 52

def set_map(keys,values)
  (0..keys.length-1).each do |i|
    key=keys[i]
    value=values[i]
    @attribute_values[key]=value
  end


end

#table_name ⇒ Object 



693
694
695
 
# File 'lib/sdb_dal/domain_object.rb', line 693

def table_name
  return self.class.table_name
end

#to_xml ⇒ Object 



591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
 
# File 'lib/sdb_dal/domain_object.rb', line 591

def to_xml
  result= "<#{self.class.table_name}>"
  attributes.each do |key,value|
    if value.respond_to?(:flatten)
      result<<"<#{key}>"
      value.each do |sub_value|
        result<<"<value>#{h sub_value.to_s}</value>"
      end
      result<<"</#{key}>"
    else
      result<<"<#{key}>#{h value.to_s}</#{key}>"
    end
  end
  result<< "</#{self.class.table_name}>"
  result
end