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Improve compatibility with Dropbox

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.. by checking the ride file CRC before recomputing
   either the metrics or the ridefilecache.

.. this means that users that routinely copy or backup
   or use dropbox to keep things in sync won't see any
   unneccessary metric computations.
This commit is contained in:
Mark Liversedge
2014-03-27 16:20:33 +00:00
parent 3247d1ecce
commit 924ef2a8f1
5 changed files with 56 additions and 28 deletions
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14
src/DBAccess.cpp
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@@ -88,6 +88,7 @@
// 67 22 Mar 2014 Mark Liversedge Added Anaerobic TISS prototype
// 68 22 Mar 2014 Mark Liversedge Added dTISS prototype
// 69 23 Mar 2014 Mark Liversedge Updated Gompertz constansts for An-TISS sigmoid
// 70 27 Mar 2014 Mark Liversedge Add file CRC to refresh only if contents change (not just timestamps)
int DBSchemaVersion = 69;
@@ -136,8 +137,8 @@ DBAccess::initDatabase(QDir home)
}
}
static int
computeFileCRC(QString filename)
unsigned int
DBAccess::computeFileCRC(QString filename)
{
QFile file(filename);
QFileInfo fileinfo(file);
@@ -180,6 +181,7 @@ bool DBAccess::createMetricsTable()
QString createMetricTable = "create table metrics (filename varchar primary key,"
"identifier varchar,"
"timestamp integer,"
"crc integer,"
"ride_date date,"
"color varchar,"
"fingerprint integer";
@@ -421,7 +423,7 @@ bool DBAccess::importRide(SummaryMetrics *summaryMetrics, RideFile *ride, QColor
}
// construct an insert statement
QString insertStatement = "insert into metrics ( filename, identifier, timestamp, ride_date, color, fingerprint ";
QString insertStatement = "insert into metrics ( filename, identifier, crc, timestamp, ride_date, color, fingerprint ";
const RideMetricFactory &factory = RideMetricFactory::instance();
for (int i=0; i<factory.metricCount(); i++)
insertStatement += QString(", X%1 ").arg(factory.metricName(i));
@@ -439,7 +441,7 @@ bool DBAccess::importRide(SummaryMetrics *summaryMetrics, RideFile *ride, QColor
}
}
insertStatement += " ) values (?,?,?,?,?,?"; // filename, identifier, timestamp, ride_date, color, fingerprint
insertStatement += " ) values (?,?,?,?,?,?,?"; // filename, identifier, crc, timestamp, ride_date, color, fingerprint
for (int i=0; i<factory.metricCount(); i++)
insertStatement += ",?";
foreach(FieldDefinition field, context->athlete->rideMetadata()->getFields()) {
@@ -451,9 +453,11 @@ bool DBAccess::importRide(SummaryMetrics *summaryMetrics, RideFile *ride, QColor
query.prepare(insertStatement);
// filename, timestamp, ride date
// filename, crc, timestamp, ride date
QString fullPath = QString(context->athlete->home.absolutePath()) + "/" + summaryMetrics->getFileName();
query.addBindValue(summaryMetrics->getFileName());
query.addBindValue(summaryMetrics->getId());
query.addBindValue((int)computeFileCRC(fullPath));
query.addBindValue(timestamp.toTime_t());
query.addBindValue(summaryMetrics->getRideDate());
query.addBindValue(color.name());