Hi Thomas - Here's the problem code. The plain select works fine, but asking
for the count causes an error to be thrown if I use the non-hack method.
/**
* Get a List of the dogs that earned all of a list of titles in a given year
* @param titles array of titles to be searched.
* @param year four digit year to be searched
* @return a List of dogs that earned the titles
* @throws TorqueException if something goes wrong
*/
public static List<Dog> doFindDogsWithAllTitles( String[] titles, String
year ) throws TorqueException {
Criteria crit = getCriteriaDogsWithAllTitles( titles, year );
crit.addAscendingOrderByColumn( REG_NAME );
return doSelect( crit );
}
/**
* Get a count of the dogs that earned all of a list of titles in a given
year
* @param titles array of titles to be searched.
* @param year four digit year to be searched
* @return number of dogs that earned the titles
* @throws TorqueException if something goes wrong
*/
public static int doFindCountWithAllTitles( String[] titles, String year )
throws TorqueException {
//TODO: Remove Hack once issue fixed
Criteria crit = getCriteriaDogsWithAllTitlesHack( titles, year );
SummaryHelper summary = new SummaryHelper();
summary.addAggregate( "count", new Count( DogPeer.DOG_ID ) );
List<ListOrderedMapCI> results = summary.summarize( crit );
return Integer.parseInt( results.get( 0 ).get( "count" ).toString() );
}
/**
* Create a criteria to search for the dogs that earned all of an array of
titles in a given year
* @param titles array of titles to be searched.
* @param year four digit year to be searched
* @return the Criteria to be used for the request
*/
private static Criteria getCriteriaDogsWithAllTitles( String[] titles,
String year ) {
String startDate = null, endDate = null;
try{
int yr = Integer.parseInt( year )+1;
//They year is valid if we get here.
startDate = year+"-01-01";
endDate = Integer.toString( yr ) + "-01-01";
} catch( NumberFormatException nfe ) {
//ignore
}
Criteria crit = new Criteria();
int idx = 1;
for( String str : titles ) {
String alias = "t"+Integer.toString( idx );
crit.addAlias( alias, "title" );
crit.addJoin( DogPeer.DOG_ID, new ColumnImpl( alias + "." +
TitlePeer.DOG_ID.getColumnName() ) );
crit.where( new ColumnImpl( alias + "." +
TitlePeer.TITLE.getColumnName() ), str );
if( startDate != null ) {
Column aliasDate = new ColumnImpl( alias + "." +
TitlePeer.TITLE_DATE.getColumnName() );
crit.where( aliasDate, startDate, Criteria.GREATER_EQUAL );
crit.where( aliasDate, endDate, Criteria.LESS_THAN );
}
++idx;
}
return crit;
}
/**
* forces a non-prepared statement to get around SummaryHelper bug
* @param titles array of titles that the dog must have
* @param year year to be searched
* @return a Criteria object with the appropriate query
*/
private static Criteria getCriteriaDogsWithAllTitlesHack( String[] titles,
String year ) {
String startDate = null, endDate = null;
try{
int yr = Integer.parseInt( year )+1;
//They year is valid if we get here.
startDate = year+"-01-01";
endDate = Integer.toString( yr ) + "-01-01";
} catch( NumberFormatException nfe ) {
//ignore
}
Criteria crit = new Criteria();
int idx = 1;
for( String str : titles ) {
String alias = "t"+Integer.toString( idx );
crit.addAlias( alias, "title" );
crit.addJoin( DogPeer.DOG_ID, new ColumnImpl( alias + "." +
TitlePeer.DOG_ID.getColumnName() ) );
crit.whereVerbatimSql( alias + "." + TitlePeer.TITLE.getColumnName() +
"='" + str + "'", null );
if( startDate != null ) {
Column aliasDate = new ColumnImpl( alias + "." +
TitlePeer.TITLE_DATE.getColumnName() );
crit.whereVerbatimSql( alias + "." +
TitlePeer.TITLE_DATE.getColumnName() + ">='" + startDate + "'", null );
crit.whereVerbatimSql( alias + "." +
TitlePeer.TITLE_DATE.getColumnName() + "<'" + endDate + "'", null );
}
++idx;
}
return crit;
}
On Jun 12, 2013, at 12:59 AM, Thomas Fox <thomas....@seitenbau.net> wrote:
> |---------------------------------------------------------------------------------------------------------------------------------------------------->
> |Jay Bourland wrote:
> |
> |---------------------------------------------------------------------------------------------------------------------------------------------------->
>> ---------------------------|
> | An: |
>> ---------------------------|
>
>
>
>> I'm trying to convert an old Torque site to version 4. I'm running
>> into a problem with using a count() function. The code looks like this:
>>
>> Criteria crit = getCriteriaDogsWithAllTitles( titles, year );
>>
>> SummaryHelper summary = new SummaryHelper();
>>
>> summary.addAggregate( "count", new Count( DogPeer.DOG_ID ) );
>> List<ListOrderedMapCI> results = summary.summarize( crit );
>>
>> When summarize() is executed, I get a
>> "jdbc4.MySQLSyntaxErrorException: You have an error in your SQL
>> syntax" exception. The Criteria is good and works fine with a
>> doSelect(). It appears that the summarize converts the Criteria to a
>> string without adding in the replacements for the parameters in the
>> prepared statement.
>
> Can you please provide an example how you construct a crit which fails ?
>
>> Also, if I take the string from the
>> queryStatement and replace the '?' with values, the statement runs
>> fine from an interactive MySQL session. When I compare the code in
>> SummaryHelper.summarize() to BasePeerImpl.doSelect() the code to set
>> the replacements is present in doSelect but not in summarize.
>>
>> What's the best way to report this?
>
> Please file a jira issue at
>
> https://issues.apache.org/jira/browse/TORQUE/
>
> As a workaround, you can try
> crit.addSelectColumn(new org.apache.torque.util.functions.Count
> ("*"));
> int count = SomePeer.doSelectSingleRecord(crit, new
> org.apache.torque.om.mapper.IntegerMapper());
>
> instead of
> summary.addAggregate( "count", new Count( DogPeer.DOG_ID ) );
> List<ListOrderedMapCI> results = summary.summarize( crit );
>
> Thomas
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: torque-user-unsubscr...@db.apache.org
> For additional commands, e-mail: torque-user-h...@db.apache.org
>
---------------------------------------------------------------------
To unsubscribe, e-mail: torque-user-unsubscr...@db.apache.org
For additional commands, e-mail: torque-user-h...@db.apache.org
