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Improved FoxLog model, has dupe check query and better error checking

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Now uses factored out helpers in qt_db_helpers.hpp .
This commit is contained in:
Bill Somerville 2018-11-12 02:06:44 +00:00
parent 3634be1e80
commit 0d6f6612d7
2 changed files with 55 additions and 27 deletions
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80
models/FoxLog.cpp
View File

@ -1,5 +1,7 @@
#include "FoxLog.hpp"
#include <stdexcept>
#include <utility>
#include <QString>
#include <QDateTime>
#include <QSqlDatabase>
@ -8,6 +10,7 @@
#include <QSqlError>
#include <QSqlQuery>
#include <QDebug>
#include "qt_db_helpers.hpp"
#include "pimpl_impl.hpp"
class FoxLog::impl final
@ -15,7 +18,8 @@ class FoxLog::impl final
{
public:
impl ();
QSqlQuery insert_;
QSqlQuery mutable dupe_query_;
};
FoxLog::impl::impl ()
@ -23,8 +27,9 @@ FoxLog::impl::impl ()
if (!database ().tables ().contains ("fox_log"))
{
QSqlQuery query;
if (!query.exec ("CREATE TABLE fox_log ("
" id INTEGER PRIMARY KEY AUTOINCREMENT,"
SQL_error_check (query, static_cast<bool (QSqlQuery::*) (QString const&)> (&QSqlQuery::exec),
"CREATE TABLE fox_log ("
" id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,"
" \"when\" DATETIME NOT NULL,"
" call VARCHAR(20) NOT NULL,"
" grid VARCHAR(4),"
@ -32,13 +37,13 @@ FoxLog::impl::impl ()
" report_rcvd VARCHAR(3),"
" band VARCHAR(6) NOT NULL,"
" CONSTRAINT no_dupes UNIQUE (call, band)"
")"))
{
throw std::runtime_error {("SQL Error: " + query.lastError ().text ()).toStdString ()};
}
")");
}
setEditStrategy (QSqlTableModel::OnRowChange);
SQL_error_check (dupe_query_, &QSqlQuery::prepare,
"SELECT COUNT(*) FROM fox_log WHERE call = :call AND band = :band");
setEditStrategy (QSqlTableModel::OnManualSubmit);
setTable ("fox_log");
setHeaderData (fieldIndex ("when"), Qt::Horizontal, tr ("Date and Time"));
setHeaderData (fieldIndex ("call"), Qt::Horizontal, tr ("Call"));
@ -46,10 +51,7 @@ FoxLog::impl::impl ()
setHeaderData (fieldIndex ("report_sent"), Qt::Horizontal, tr ("Sent"));
setHeaderData (fieldIndex ("report_rcvd"), Qt::Horizontal, tr ("Rcvd"));
setHeaderData (fieldIndex ("band"), Qt::Horizontal, tr ("Band"));
if (!select ())
{
throw std::runtime_error {("SQL Error: " + lastError ().text ()).toStdString ()};
}
SQL_error_check (*this, &QSqlTableModel::select);
}
FoxLog::FoxLog ()
@ -65,30 +67,54 @@ QAbstractItemModel * FoxLog::model ()
return &*m_;
}
namespace
{
void set_value_maybe_null (QSqlRecord& record, QString const& name, QString const& value)
{
if (value.size ())
{
record.setValue (name, value);
}
else
{
record.setNull (name);
}
}
}
bool FoxLog::add_QSO (QDateTime const& when, QString const& call, QString const& grid
, QString const& report_received, QString const& report_sent
, QString const& band)
{
auto db = m_->database ();
ConditionalTransaction transaction {*m_};
auto record = m_->record ();
record.setValue ("when", when.toMSecsSinceEpoch () / 1000);
record.setValue ("call", call);
record.setValue ("grid", grid);
record.setValue ("report_sent", report_sent);
record.setValue ("report_rcvd", report_received);
set_value_maybe_null (record, "grid", grid);
set_value_maybe_null (record, "report_sent", report_sent);
set_value_maybe_null (record, "report_rcvd", report_received);
record.setValue ("band", band);
if (!m_->insertRecord (-1, record))
SQL_error_check (*m_, &QSqlTableModel::insertRecord, -1, record);
if (!transaction.submit (false))
{
throw std::runtime_error {("SQL Error: " + m_->lastError ().text ()).toStdString ()};
}
if (!m_->submitAll ())
{
qDebug () << "type:" << m_->lastError ().type ();
if (QSqlError::TransactionError == m_->lastError ().type ())
{
return false;
}
throw std::runtime_error {("SQL Error: " + m_->lastError ().text ()).toStdString ()};
transaction.revert ();
return false;
}
return true;
}
bool FoxLog::dupe (QString const& call, QString const& band) const
{
m_->dupe_query_.bindValue (":call", call);
m_->dupe_query_.bindValue (":band", band);
SQL_error_check (m_->dupe_query_, static_cast<bool (QSqlQuery::*) ()> (&QSqlQuery::exec));
m_->dupe_query_.next ();
return m_->dupe_query_.value (0).toInt ();
}
void FoxLog::reset ()
{
ConditionalTransaction transaction {*m_};
SQL_error_check (*m_, &QSqlTableModel::removeRows, 0, m_->rowCount (), QModelIndex {});
transaction.submit ();
}

2
models/FoxLog.hpp
View File

@ -19,8 +19,10 @@ public:
bool add_QSO (QDateTime const&, QString const& call, QString const& grid
, QString const& report_received, QString const& report_sent
, QString const& band);
bool dupe (QString const& call, QString const& band) const;
QAbstractItemModel * model ();
void reset ();
private:
class impl;