1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
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
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
// model.cpp
/* Copyright 2009 10gen
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "pch.h"
#include "model.h"
#include "connpool.h"
namespace mongo {
bool Model::load(BSONObj& query) {
scoped_ptr<ScopedDbConnection> conn(
ScopedDbConnection::getScopedDbConnection (modelServer() ) );
BSONObj b = conn->get()->findOne(getNS(), query);
conn->done();
if ( b.isEmpty() )
return false;
unserialize(b);
_id = b["_id"].wrap().getOwned();
return true;
}
void Model::remove( bool safe ) {
uassert( 10016 , "_id isn't set - needed for remove()" , _id["_id"].type() );
scoped_ptr<ScopedDbConnection> conn(
ScopedDbConnection::getScopedDbConnection (modelServer() ) );
conn->get()->remove( getNS() , _id );
string errmsg = "";
if ( safe )
errmsg = conn->get()->getLastError();
conn->done();
if ( safe && errmsg.size() )
throw UserException( 9002 , (string)"error on Model::remove: " + errmsg );
}
void Model::save( bool safe ) {
scoped_ptr<ScopedDbConnection> conn(
ScopedDbConnection::getScopedDbConnection (modelServer() ) );
BSONObjBuilder b;
serialize( b );
BSONElement myId;
{
BSONObjIterator i = b.iterator();
while ( i.more() ) {
BSONElement e = i.next();
if ( strcmp( e.fieldName() , "_id" ) == 0 ) {
myId = e;
break;
}
}
}
if ( myId.type() ) {
if ( _id.isEmpty() ) {
_id = myId.wrap();
}
else if ( myId.woCompare( _id.firstElement() ) ) {
stringstream ss;
ss << "_id from serialize and stored differ: ";
ss << '[' << myId << "] != ";
ss << '[' << _id.firstElement() << ']';
throw UserException( 13121 , ss.str() );
}
}
if ( _id.isEmpty() ) {
OID oid;
oid.init();
b.appendOID( "_id" , &oid );
BSONObj o = b.obj();
conn->get()->insert( getNS() , o );
_id = o["_id"].wrap().getOwned();
LOG(4) << "inserted new model " << getNS() << " " << o << endl;
}
else {
if ( myId.eoo() ) {
myId = _id["_id"];
b.append( myId );
}
verify( ! myId.eoo() );
BSONObjBuilder qb;
qb.append( myId );
BSONObj q = qb.obj();
BSONObj o = b.obj();
LOG(4) << "updated model" << getNS() << " " << q << " " << o << endl;
conn->get()->update( getNS() , q , o , true );
}
string errmsg = "";
if ( safe )
errmsg = conn->get()->getLastError();
conn->done();
if ( safe && errmsg.size() )
throw UserException( 9003 , (string)"error on Model::save: " + errmsg );
}
BSONObj Model::toObject() {
BSONObjBuilder b;
serialize( b );
return b.obj();
}
void Model::append( const char * name , BSONObjBuilder& b ) {
BSONObjBuilder bb( b.subobjStart( name ) );
serialize( bb );
bb.done();
}
} // namespace mongo
|
