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move id only when necessary RUBY-88

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This commit is contained in:
Kyle Banker 2010-01-28 18:44:50 -05:00
parent f6e505e511
commit e075d25a91
5 changed files with 88 additions and 31 deletions
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34
ext/cbson/cbson.c
View File

@ -139,7 +139,7 @@ static int cmp_char(const void* a, const void* b) {
return *(char*)a - *(char*)b;
}
static void write_doc(buffer_t buffer, VALUE hash, VALUE check_keys);
static void write_doc(buffer_t buffer, VALUE hash, VALUE check_keys, VALUE move_id);
static int write_element(VALUE key, VALUE value, VALUE extra);
static VALUE elements_to_hash(const char* buffer, int max);
@ -147,6 +147,10 @@ static VALUE pack_extra(buffer_t buffer, VALUE check_keys) {
return rb_ary_new3(2, LL2NUM((long long)buffer), check_keys);
}
static VALUE pack_triple(buffer_t buffer, VALUE check_keys, int allow_id) {
return rb_ary_new3(3, LL2NUM((long long)buffer), check_keys, allow_id);
}
static void write_name_and_type(buffer_t buffer, VALUE name, char type) {
SAFE_WRITE(buffer, &type, 1);
name = TO_UTF8(name);
@ -236,7 +240,7 @@ static int write_element_allow_id(VALUE key, VALUE value, VALUE extra, int allow
case T_HASH:
{
write_name_and_type(buffer, key, 0x03);
write_doc(buffer, value, check_keys);
write_doc(buffer, value, check_keys, Qfalse);
break;
}
case T_ARRAY:
@ -289,7 +293,7 @@ static int write_element_allow_id(VALUE key, VALUE value, VALUE extra, int allow
SAFE_WRITE(buffer, (char*)&length, 4);
SAFE_WRITE(buffer, RSTRING_PTR(value), length - 1);
SAFE_WRITE(buffer, &zero, 1);
write_doc(buffer, rb_funcall(value, rb_intern("scope"), 0), Qfalse);
write_doc(buffer, rb_funcall(value, rb_intern("scope"), 0), Qfalse, Qfalse);
total_length = buffer_get_position(buffer) - start_position;
SAFE_WRITE_AT_POS(buffer, length_location, (const char*)&total_length, 4);
@ -463,10 +467,11 @@ static int write_element(VALUE key, VALUE value, VALUE extra) {
return write_element_allow_id(key, value, extra, 0);
}
static void write_doc(buffer_t buffer, VALUE hash, VALUE check_keys) {
static void write_doc(buffer_t buffer, VALUE hash, VALUE check_keys, VALUE move_id) {
buffer_position start_position = buffer_get_position(buffer);
buffer_position length_location = buffer_save_space(buffer, 4);
buffer_position length;
int allow_id;
VALUE id_str = rb_str_new2("_id");
VALUE id_sym = ID2SYM(rb_intern("_id"));
@ -474,6 +479,9 @@ static void write_doc(buffer_t buffer, VALUE hash, VALUE check_keys) {
rb_raise(rb_eNoMemError, "failed to allocate memory in buffer.c");
}
// write '_id' first if move_id is true
if(move_id == Qtrue) {
allow_id = 0;
if (rb_funcall(hash, rb_intern("has_key?"), 1, id_str) == Qtrue) {
VALUE id = rb_hash_aref(hash, id_str);
write_element_allow_id(id_str, id, pack_extra(buffer, check_keys), 1);
@ -481,6 +489,14 @@ static void write_doc(buffer_t buffer, VALUE hash, VALUE check_keys) {
VALUE id = rb_hash_aref(hash, id_sym);
write_element_allow_id(id_sym, id, pack_extra(buffer, check_keys), 1);
}
}
else {
allow_id = 1;
if ((rb_funcall(hash, rb_intern("has_key?"), 1, id_str) == Qtrue) &&
(rb_funcall(hash, rb_intern("has_key?"), 1, id_sym) == Qtrue)) {
VALUE obj = rb_hash_delete(hash, id_str);
}
}
// we have to check for an OrderedHash and handle that specially
if (strcmp(rb_class2name(RBASIC(hash)->klass), "OrderedHash") == 0) {
@ -490,10 +506,10 @@ static void write_doc(buffer_t buffer, VALUE hash, VALUE check_keys) {
VALUE key = RARRAY_PTR(keys)[i];
VALUE value = rb_hash_aref(hash, key);
write_element(key, value, pack_extra(buffer, check_keys));
write_element_allow_id(key, value, pack_extra(buffer, check_keys), allow_id);
}
} else {
rb_hash_foreach(hash, write_element, pack_extra(buffer, check_keys));
rb_hash_foreach(hash, write_element_allow_id, pack_triple(buffer, check_keys, allow_id));
}
// write null byte and fill in length
@ -509,14 +525,14 @@ static void write_doc(buffer_t buffer, VALUE hash, VALUE check_keys) {
SAFE_WRITE_AT_POS(buffer, length_location, (const char*)&length, 4);
}
static VALUE method_serialize(VALUE self, VALUE doc, VALUE check_keys) {
static VALUE method_serialize(VALUE self, VALUE doc, VALUE check_keys, VALUE move_id) {
VALUE result;
buffer_t buffer = buffer_new();
if (buffer == NULL) {
rb_raise(rb_eNoMemError, "failed to allocate memory in buffer.c");
}
write_doc(buffer, doc, check_keys);
write_doc(buffer, doc, check_keys, move_id);
result = rb_str_new(buffer_get_buffer(buffer), buffer_get_position(buffer));
if (buffer_free(buffer) != 0) {
@ -872,7 +888,7 @@ void Init_cbson() {
CBson = rb_define_module("CBson");
ext_version = rb_str_new2(VERSION);
rb_define_const(CBson, "VERSION", ext_version);
rb_define_module_function(CBson, "serialize", method_serialize, 2);
rb_define_module_function(CBson, "serialize", method_serialize, 3);
rb_define_module_function(CBson, "deserialize", method_deserialize, 1);
rb_require("digest/md5");

8
lib/mongo/collection.rb
View File

@ -126,6 +126,8 @@ module Mongo
#
# @raise [RuntimeError]
# if given unknown options
#
# @see Official, <a href="http://dochub.mongodb.org/find" name="find-instance_method" rel="find">Official Docs</a>
def find(selector={}, opts={})
fields = opts.delete(:fields)
fields = ["_id"] if fields && fields.empty?
@ -198,6 +200,8 @@ module Mongo
# If true, check that the save succeeded. OperationFailure
# will be raised on an error. Note that a safe check requires an extra
# round-trip to the database.
#
# @see Official, <a href="http://dochub.mongodb.org/save" name="save-instance_method" rel="find">Official Docs</a>
def save(doc, options={})
if doc.has_key?(:_id) || doc.has_key?('_id')
id = doc[:_id] || doc['_id']
@ -294,7 +298,7 @@ module Mongo
update_options += 2 if options[:multi]
message.put_int(update_options)
message.put_array(BSON.serialize(selector, false).to_a)
message.put_array(BSON.serialize(document, false).to_a)
message.put_array(BSON.serialize(document, false, true).to_a)
if options[:safe]
@connection.send_message_with_safe_check(Mongo::Constants::OP_UPDATE, message, @db.name,
"db.#{@name}.update(#{selector.inspect}, #{document.inspect})")
@ -609,7 +613,7 @@ EOS
# Initial byte is 0.
message = ByteBuffer.new([0, 0, 0, 0])
BSON_RUBY.serialize_cstr(message, "#{@db.name}.#{collection_name}")
documents.each { |doc| message.put_array(BSON.serialize(doc, check_keys).to_a) }
documents.each { |doc| message.put_array(BSON.serialize(doc, check_keys, true).to_a) }
if safe
@connection.send_message_with_safe_check(Mongo::Constants::OP_INSERT, message, @db.name,
"db.#{collection_name}.insert(#{documents.inspect})")

4
lib/mongo/util/bson_c.rb
View File

@ -1,8 +1,8 @@
# A thin wrapper for the CBson class
class BSON_C
def self.serialize(obj, check_keys=false)
ByteBuffer.new(CBson.serialize(obj, check_keys))
def self.serialize(obj, check_keys=false, move_id=false)
ByteBuffer.new(CBson.serialize(obj, check_keys, move_id))
end
def self.deserialize(buf=nil)

14
lib/mongo/util/bson_ruby.rb
View File

@ -87,15 +87,15 @@ class BSON_RUBY
# Serializes an object.
# Implemented to ensure an API compatible with BSON extension.
def self.serialize(obj, check_keys=false)
new.serialize(obj, check_keys)
def self.serialize(obj, check_keys=false, move_id=false)
new.serialize(obj, check_keys, move_id)
end
def self.deserialize(buf=nil)
new.deserialize(buf)
end
def serialize(obj, check_keys=false)
def serialize(obj, check_keys=false, move_id=false)
raise "Document is null" unless obj
@buf.rewind
@ -103,13 +103,19 @@ class BSON_RUBY
@buf.put_int(0)
# Write key/value pairs. Always write _id first if it exists.
if move_id
if obj.has_key? '_id'
serialize_key_value('_id', obj['_id'], check_keys)
elsif obj.has_key? :_id
serialize_key_value('_id', obj[:_id], check_keys)
end
obj.each {|k, v| serialize_key_value(k, v, check_keys) unless k == '_id' || k == :_id }
else
if obj.has_key?('_id') && obj.has_key?(:_id)
obj.delete(:_id)
end
obj.each {|k, v| serialize_key_value(k, v, check_keys) }
end
serialize_eoo_element(@buf)
if @buf.size > 4 * 1024 * 1024

37
test/test_bson.rb
View File

@ -263,19 +263,19 @@ class BSONTest < Test::Unit::TestCase
val = OrderedHash.new
val['not_id'] = 1
val['_id'] = 2
roundtrip = BSON.deserialize(BSON.serialize(val).to_a)
roundtrip = BSON.deserialize(BSON.serialize(val, false, true).to_a)
assert_kind_of OrderedHash, roundtrip
assert_equal '_id', roundtrip.keys.first
val = {'a' => 'foo', 'b' => 'bar', :_id => 42, 'z' => 'hello'}
roundtrip = BSON.deserialize(BSON.serialize(val).to_a)
roundtrip = BSON.deserialize(BSON.serialize(val, false, true).to_a)
assert_kind_of OrderedHash, roundtrip
assert_equal '_id', roundtrip.keys.first
end
def test_nil_id
doc = {"_id" => nil}
assert_equal doc, BSON.deserialize(bson = BSON.serialize(doc).to_a)
assert_equal doc, BSON.deserialize(bson = BSON.serialize(doc, false, true).to_a)
end
def test_timestamp
@ -394,4 +394,35 @@ class BSONTest < Test::Unit::TestCase
end
end
def test_move_id
a = OrderedHash.new
a['text'] = 'abc'
a['key'] = 'abc'
a['_id'] = 1
assert_equal ")\000\000\000\020_id\000\001\000\000\000\002text" +
"\000\004\000\000\000abc\000\002key\000\004\000\000\000abc\000\000",
BSON.serialize(a, false, true).to_s
assert_equal ")\000\000\000\002text\000\004\000\000\000abc\000\002key" +
"\000\004\000\000\000abc\000\020_id\000\001\000\000\000\000",
BSON.serialize(a, false, false).to_s
end
def test_move_id_with_nested_doc
b = OrderedHash.new
b['text'] = 'abc'
b['_id'] = 2
c = OrderedHash.new
c['text'] = 'abc'
c['hash'] = b
c['_id'] = 3
assert_equal ">\000\000\000\020_id\000\003\000\000\000\002text" +
"\000\004\000\000\000abc\000\003hash\000\034\000\000" +
"\000\002text\000\004\000\000\000abc\000\020_id\000\002\000\000\000\000\000",
BSON.serialize(c, false, true).to_s
assert_equal ">\000\000\000\002text\000\004\000\000\000abc\000\003hash" +
"\000\034\000\000\000\002text\000\004\000\000\000abc\000\020_id" +
"\000\002\000\000\000\000\020_id\000\003\000\000\000\000",
BSON.serialize(c, false, false).to_s
end
end