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Database: Simplified ::modifyInterval

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This commit is contained in:
Paul Beckingham 2016-04-17 09:06:04 -04:00
parent 25be7c82e7
commit cb970b6525
1 changed files with 6 additions and 20 deletions
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26
src/Database.cpp
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@ -151,28 +151,14 @@ void Database::deleteInterval (const Interval& interval)
} }
//////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////
// The algorithm to modify an interval is first to find and remove it from the
// Datafile, then add it back to the right Datafile. This is because
// modifїcation may involve changing the start date, which could mean the
// Interval belongs in a different file.
void Database::modifyInterval (const Interval& from, const Interval& to) void Database::modifyInterval (const Interval& from, const Interval& to)
{ {
// The algorithm to modify an interval is first to find and remove it from the deleteInterval (from);
// Datafile, then add it back to the right Datafile. This is because addInterval (to);
// modifїcation may involve changing the start date, which could mean the
// Interval belongs in a different file.
// Delete the interval, if found. If not found, then this means the data file
// was deleted/moved.
std::vector <Datafile>::reverse_iterator ri;
for (ri = _files.rbegin (); ri != _files.rend (); ri++)
if (ri->deleteInterval (from))
break;
// Add the interval to the right file.
for (ri = _files.rbegin (); ri != _files.rend (); ri++)
if (ri->addInterval (to))
return;
// There was no file that accepted the interval, which means the data file was
// deleted/moved. recreate the file.
getDatafile (to.start ().year (), to.start ().month ());
} }
//////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////