91 lines
3.0 KiB
C++
91 lines
3.0 KiB
C++
#include <boost/foreach.hpp>
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#include "TableFilterWidget.hpp"
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TableFilterWidget::TableFilterWidget(DatabaseHandler& db, std::string table, std::string field, Wt::WContainerWidget* parent)
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: FilterWidget( parent ),
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_db(db),
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_table(table),
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_field(field),
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_tableView(nullptr)
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{
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_queryModel.setQuery( _db.getSession().query< ResultType >("select " + _table + "." + _field + ",count(DISTINCT track.id),0 as ORDERBY from track,artist,release,genre,track_genre WHERE track.artist_id = artist.id and track.release_id = release.id and track_genre.track_id = track.id and genre.id = track_genre.genre_id GROUP BY " + _table + "." + _field + " UNION select '<All>',0,1 AS ORDERBY").orderBy("ORDERBY DESC," + _table + "." + _field));
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_queryModel.addColumn( _table + "." + _field, table);
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_queryModel.addColumn( "count(DISTINCT track.id)", "Tracks");
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_tableView = new Wt::WTableView( this );
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_tableView->resize(250, 200); // TODO
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_tableView->setSelectionMode(Wt::ExtendedSelection);
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_tableView->setSortingEnabled(false);
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_tableView->setAlternatingRowColors(true);
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_tableView->setModel(&_queryModel);
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_tableView->selectionChanged().connect(this, &TableFilterWidget::emitUpdate);
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_tableView->selectionChanged().connect(this, &TableFilterWidget::emitUpdate);
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_queryModel.setBatchSize(100);
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}
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// Set constraints on this filter
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void
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TableFilterWidget::refresh(const Constraint& constraint)
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{
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SqlQuery sqlQuery;
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sqlQuery.select().And( _table + "." + _field + ",count(DISTINCT track.id),0 as ORDERBY");
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sqlQuery.from().And( FromClause("artist,release,track,genre,track_genre")) ;
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sqlQuery.where().And(constraint.where); // Add constraint made by other filters
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sqlQuery.groupBy().And( _table + "." + _field); // Add constraint made by other filters
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SqlQuery AllSqlQuery;
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AllSqlQuery.select().And( SelectStatement("'<All>',0,1 AS ORDERBY") );
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std::cout << _table << ", generated query = '" << sqlQuery.get() + " UNION " + AllSqlQuery.get() << "'" << std::endl;
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Wt::Dbo::Query<ResultType> query = _db.getSession().query<ResultType>( sqlQuery.get() + " UNION " + AllSqlQuery.get() );
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query.orderBy("ORDERBY DESC," + _table + "." + _field);
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BOOST_FOREACH(const std::string& bindArg, sqlQuery.where().getBindArgs()) {
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std::cout << "Binding value '" << bindArg << "'" << std::endl;
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query.bind(bindArg);
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}
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_queryModel.setQuery( query, true /* Keep columns */);
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std::cout << "Finish !" << std::endl;
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}
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// Get constraint created by this filter
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void
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TableFilterWidget::getConstraint(Constraint& constraint)
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{
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Wt::WModelIndexSet indexSet = _tableView->selectedIndexes();
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// WHERE statement
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WhereClause clause;
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BOOST_FOREACH(Wt::WModelIndex index, indexSet) {
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if (!index.isValid())
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continue;
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ResultType result = _queryModel.resultRow( index.row() );
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// Get the track part
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std::string name( result.get<0>() );
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bool isAll( result.get<2>() ) ;
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if (isAll) {
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// no constraint, just return
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return;
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}
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clause.Or(_table + "." + _field + " = ?").bind(name);
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}
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// Adding our WHERE clause
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constraint.where.And( clause );
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}
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