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Code Issues Releases Activity

make fieldMatcher assert rather than set flag

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This commit is contained in:
Eliot Horowitz 2010-02-15 23:17:42 -05:00
parent 62aad0ee18
commit 43499d2457
3 changed files with 27 additions and 27 deletions
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2
db/query.h
View File

@ -251,8 +251,6 @@ namespace mongo {
return;
_fields.reset( new FieldMatcher() );
_fields->add( fields );
if ( _fields->errmsg )
uassert( 10053 , _fields->errmsg, false); // TODO: just have FieldMatcher throw now
}
ParsedQuery( const ParsedQuery& other ){

42
db/queryutil.cpp
View File

@ -446,8 +446,8 @@ namespace mongo {
///////////////////
void FieldMatcher::add( const BSONObj& o ){
massert( 10371 , "can only add to FieldMatcher once", source_.isEmpty());
source_ = o;
massert( 10371 , "can only add to FieldMatcher once", _source.isEmpty());
_source = o;
BSONObjIterator i( o );
int true_false = -1;
@ -458,23 +458,24 @@ namespace mongo {
// validate input
if (true_false == -1){
true_false = e.trueValue();
include_ = !e.trueValue();
}else{
if((bool) true_false != e.trueValue())
errmsg = "You cannot currently mix including and excluding fields. Contact us if this is an issue.";
_include = !e.trueValue();
}
else{
uassert( 10053 , "You cannot currently mix including and excluding fields. Contact us if this is an issue." ,
(bool)true_false == e.trueValue() );
}
}
}
void FieldMatcher::add(const string& field, bool include){
if (field.empty()){ // this is the field the user referred to
include_ = include;
_include = include;
} else {
const size_t dot = field.find('.');
const string subfield = field.substr(0,dot);
const string rest = (dot == string::npos ? "" : field.substr(dot+1,string::npos));
boost::shared_ptr<FieldMatcher>& fm = fields_[subfield];
boost::shared_ptr<FieldMatcher>& fm = _fields[subfield];
if (!fm)
fm.reset(new FieldMatcher(!include));
@ -483,7 +484,7 @@ namespace mongo {
}
BSONObj FieldMatcher::getSpec() const{
return source_;
return _source;
}
//b will be the value part of an array-typed BSONElement
@ -510,7 +511,7 @@ namespace mongo {
break;
}
default:
if (include_)
if (_include)
b.appendAs(e, b.numStr(i++).c_str());
}
@ -519,18 +520,20 @@ namespace mongo {
}
void FieldMatcher::append( BSONObjBuilder& b , const BSONElement& e ) const {
FieldMap::const_iterator field = fields_.find( e.fieldName() );
FieldMap::const_iterator field = _fields.find( e.fieldName() );
if (field == fields_.end()){
if (include_)
if (field == _fields.end()){
if (_include)
b.append(e);
} else {
}
else {
FieldMatcher& subfm = *field->second;
if (subfm.fields_.empty() || !(e.type()==Object || e.type()==Array) ){
if (subfm.include_)
if (subfm._fields.empty() || !(e.type()==Object || e.type()==Array) ){
if (subfm._include)
b.append(e);
} else if (e.type() == Object){
}
else if (e.type() == Object){
BSONObjBuilder subb;
BSONObjIterator it(e.embeddedObject());
while (it.more()){
@ -538,7 +541,8 @@ namespace mongo {
}
b.append(e.fieldName(), subb.obj());
} else { //Array
}
else { //Array
BSONObjBuilder subb;
subfm.appendArray(subb, e.embeddedObject());
b.appendArray(e.fieldName(), subb.obj());

10
db/queryutil.h
View File

@ -185,25 +185,23 @@ namespace mongo {
class FieldMatcher {
public:
FieldMatcher(bool include=false) : errmsg(NULL), include_(include) {}
FieldMatcher(bool include=false) : _include(include){}
void add( const BSONObj& o );
void append( BSONObjBuilder& b , const BSONElement& e ) const;
BSONObj getSpec() const;
const char* errmsg; //null if FieldMatcher is valid
private:
void add( const string& field, bool include );
void appendArray( BSONObjBuilder& b , const BSONObj& a ) const;
bool include_; // true if default at this level is to include
bool _include; // true if default at this level is to include
//TODO: benchmark vector<pair> vs map
typedef map<string, boost::shared_ptr<FieldMatcher> > FieldMap;
FieldMap fields_;
BSONObj source_;
FieldMap _fields;
BSONObj _source;
};