rb file, 10
after_create( ), 233
after_create method, 65
after_destroy( ), 233
after_destroy method, 68??“69
after_find method, 63
after_initialize method, 64
after_save( ), 233
after_save method, 64??“65
after_update( ), 233
after_update method, 66
after_validation( ), 233
after_validation method, 66??“67
after_validation_on_create( ), 233
after_validation_on_create method, 67
after_validation_on_update( ), 234
after_validation_on_update method, 68
aggregations, 105??“109
composed_of method, 106??“107
class_name parameter, 107
mapping parameter, 107
names of value objects, 106
defining value objects, 107??“108
using, 108??“109
aid_seq sequence, 173
alias_method call, 111
:all control, 27
all_children method, 105
allow_concurrency attribute, 168??“169
allow_concurrency parameter, PostgreSQL,
15
:allow_nil option, 84, 86
ALTER TABLE statements, 50
ancestors method, 99, 100
announce(message), 249
ar_hello_world.rb file, 110
Array form, 28
:as option, 78
ASP (Active Server Pages), 44
assert method, 129??“130
assert_equal method, 131
assert_in_delta method, 132
assert_instance_of method, 133
assert_kind_of method, 134
assert_match method, 135
assert_nil method, 130
assert_no_match method, 135
assert_not_nil method, 131
assert_not_same method, 136
assert_nothing_raised method, 133
assert_operator method, 136??“137
assert_raise method, 132??“133
assert_raised method, 133
assert_respond_to method, 134
assert_same method, 135??“136
assert_send method, 138
assert_throws method, 137??“138
assertion methods, 129??“139
assert, 129??“130
assert_equal, 131
assert_in_delta, 132
assert_instance_of, 133
assert_kind_of, 134
assert_match, 135
assert_nil, 130
assert_no_match, 135
assert_not_nil, 131
assert_not_same, 136
assert_nothing_raised, 133
assert_operator, 136??“137
assert_raise, 132??“133
assert_respond_to, 134
assert_same, 135??“136
assert_send, 138
assert_throws, 137??“138
flunk, 138??“139
:association_foriegn_key attribute, 79
AssociationReflection object, 117
associations, 59, 69??“80
example of, 69??“70
modifiers, 76??“79
:as, 78??“79
:association_foriegn_key, 79
:class_name, 77
:dependent, 79
finder options, 77
:foreign_key, 77
:join_table, 79
:polymorphic, 78??“79
:through, 78
overview, 69
setting up, 93
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