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Filter: make tags, people and location filter logically-and

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If the user provides multiple tags, they probably want to search for
dive with *all* of these tags. Replace the convoluted loops by
std::all_of(). This makes it trivial to change logically-and to
logically-or: Replace std::all_of() by std::any_of().

Reported-by: Jan Mulder <jlmulder@xs4all.nl>
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2019-01-19 09:59:33 +01:00 • committed by Dirk Hohndel
parent f67f07223f
commit 8fa156eb0d
1 changed files with 34 additions and 43 deletions
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77
qt-models/filtermodels.cpp
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@ -16,57 +16,48 @@
#include <algorithm> #include <algorithm>
namespace { namespace {
bool hasTag(const QStringList tags, const struct dive *d) // Check if a string-list contains at least one string containing the second argument.
// Comparison is non case sensitive and removes white space.
bool listContainsSuperstring(const QStringList &list, const QString &s)
{ {
if (!tags.isEmpty()) { return std::any_of(list.begin(), list.end(), [&s](const QString &s2)
auto dive_tags = get_taglist_string(d->tag_list).split(","); { return s2.trimmed().contains(s.trimmed(), Qt::CaseInsensitive); });
bool found_tag = false;
for (const auto& filter_tag : tags)
for (const auto& dive_tag : dive_tags)
if (dive_tag.trimmed().toUpper().contains(filter_tag.trimmed().toUpper()))
found_tag = true;
return found_tag;
}
return true;
} }
bool hasPerson(const QStringList people, const struct dive *d) bool hasTags(const QStringList &tags, const struct dive *d)
{ {
if (!people.isEmpty()) { if (tags.isEmpty())
QStringList dive_people = QString(d->buddy).split(",", QString::SkipEmptyParts) return true;
+ QString(d->divemaster).split(",", QString::SkipEmptyParts); QStringList dive_tags = get_taglist_string(d->tag_list).split(",");
bool found_person = false; return std::all_of(tags.begin(), tags.end(), [&dive_tags](const QString &tag)
for(const auto& filter_person : people) { return listContainsSuperstring(dive_tags, tag); });
for(const auto& dive_person : dive_people)
if (dive_person.trimmed().toUpper().contains(filter_person.trimmed().toUpper()))
found_person = true;
return found_person;
}
return true;
} }
bool hasLocation(const QStringList locations, const struct dive *d) bool hasPersons(const QStringList &people, const struct dive *d)
{ {
if (!locations.isEmpty()) { if (people.isEmpty())
QStringList diveLocations; return true;
if (d->divetrip) QStringList dive_people = QString(d->buddy).split(",", QString::SkipEmptyParts)
diveLocations.push_back(QString(d->divetrip->location)); + QString(d->divemaster).split(",", QString::SkipEmptyParts);
if (d->dive_site) return std::all_of(people.begin(), people.end(), [&dive_people](const QString &person)
diveLocations.push_back(QString(d->dive_site->name)); { return listContainsSuperstring(dive_people, person); });
}
bool found_location = false; bool hasLocations(const QStringList &locations, const struct dive *d)
for (const auto& filter_location : locations) {
for (const auto& dive_location : diveLocations) if (locations.isEmpty())
if (dive_location.trimmed().toUpper().contains(filter_location.trimmed().toUpper())) return true;
found_location = true; QStringList diveLocations;
if (d->divetrip)
diveLocations.push_back(QString(d->divetrip->location));
return found_location; if (d->dive_site)
} diveLocations.push_back(QString(d->dive_site->name));
return true;
return std::all_of(locations.begin(), locations.end(), [&diveLocations](const QString &location)
{ return listContainsSuperstring(diveLocations, location); });
} }
// TODO: Finish this iimplementation. // TODO: Finish this iimplementation.
@ -130,15 +121,15 @@ bool MultiFilterSortModel::showDive(const struct dive *d) const
return false; return false;
// tags. // tags.
if (!hasTag(filterData.tags, d)) if (!hasTags(filterData.tags, d))
return false; return false;
// people // people
if (!hasPerson(filterData.people, d)) if (!hasPersons(filterData.people, d))
return false; return false;
// Location // Location
if (!hasLocation(filterData.location, d)) if (!hasLocations(filterData.location, d))
return false; return false;
if (!hasEquipment(filterData.equipment, d)) if (!hasEquipment(filterData.equipment, d))